Document:

SECOND AMENDMENT  TO  LOAN AND SECURITY AGREEMENT

 Exhibit 10.15 

Execution Version 
 SECOND
AMENDMENT 
 TO 

LOAN AND SECURITY AGREEMENT 

This Second Amendment to Loan and Security Agreement (this “Amendment”) is entered into this 16th day of November, 2017, by and among (a) SILICON VALLEY BANK, a California corporation “SVB”), in its capacity as administrative agent (“Agent”),
(b) SVB, ALLY BANK, a Utah state bank (“Ally”), and each other “Lender” from time to time party to the Loan and Security Agreement (as defined below) (each, a “Lender” and collectively, the
“Lenders”), (c) SVB, in its capacity as an issuer of Letters of Credit (and each other “Issuing Lender” from time to time party to the Loan and Security Agreement (as defined below) (each, an “Issuing
Lender” and collectively, the “Issuing Lenders”), (d) AVALARA, INC., a Washington corporation (“Avalara”), (e) AVAFUEL, LLC, a Delaware limited liability company
(“AvaFuel”), (f) HOTSPOT TAX, INC., a Delaware corporation (“HotSpot”), (g) BILLSOFT, INC., a Nevada Corporation (“BillSoft”) and (h) SOFTWARE WIZARDS AND GURUS,
INC., a Nevada corporation (“Software Wizards”, and together with Avalara, AvaFuel, HotSpot and BillSoft, individually and collectively, jointly and severally, the “Borrower”). 

RECITALS 

A.    Agent, Lenders and Avalara have entered into that certain Loan and Security Agreement dated as of
June 6, 2016, as affected by that certain Joinder to Loan and Security Agreement, dated as of September 14, 2016, by and among Agent, Lenders and Borrower, and as amended by that certain First Amendment to Loan and Security Agreement,
dated as of April 28, 2017 (as the same may from time to time be further amended, modified, supplemented or restated, the “Loan Agreement”). 

B.    Agent and the Lenders extended credit to Borrower for the purposes permitted in the Loan Agreement. 

C.    Borrower has requested that Agent and the Lenders amend the Loan Agreement to (i) refinance the existing
Term Loan; (ii) increase the Revolving Line; (iii) modify the financial covenants and (iv) make certain other revisions to the Loan Agreement as more fully set forth herein. 

D.    Agent and the Lenders have agreed to so amend certain provisions of the Loan Agreement, but only to the
extent, in accordance with the terms, subject to the conditions and in reliance upon the representations and warranties set forth below. 

  
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 AGREEMENT 

NOW, THEREFORE, in consideration of the foregoing recitals and other good and valuable consideration, the
receipt and adequacy of which is hereby acknowledged, and intending to be legally bound, the parties hereto agree as follows: 

1.    Definitions. Capitalized terms used but not defined in this Amendment shall have the meanings given to
them in the Loan Agreement. 
 2.    Amendments to Loan Agreement. 

2.1    Section 2.1.3 (Letters of Credit Sublimit). The Loan Agreement shall be amended by inserting the
following new Section 2.1.3 immediately following Section 2.1.2 thereof: 
 “2.1.3    Letter of Credit
Sublimit Commitment. 
 (a)    Commitment. As part of the Revolving Line, subject to the terms and conditions
hereof, the Issuing Lender agrees to issue letters of credit (“Letters of Credit”) for the account of the Borrower on any Business Day during the Letter of Credit Availability Period in such form as may reasonably be approved from
time to time by the Issuing Lender; provided that the Issuing Lender shall have no obligation to issue (and shall not issue) any Letter of Credit if, after giving effect to such issuance, the L/C Exposure would exceed either the Dollar
Equivalent of the Total L/C Commitments or the Availability Amount at such time. Each Letter of Credit shall (i) be denominated in Dollars or a Foreign Currency, and (ii) expire no later than the earlier of (x) the first anniversary
of its date of issuance and (y) the Letter of Credit Maturity Date, provided that any Letter of Credit with a one-year term may provide for the renewal thereof for additional one-year periods (which shall in no event extend beyond the date referred to in clause (y) above). 

(b)    Limitations on Issuance. The Issuing Lender shall not at any time be obligated to issue (and shall not issue)
any Letter of Credit if: (i) such issuance would conflict with, or cause the Issuing Lender or any L/C Lender to exceed any limits imposed by, any applicable Requirement of Law; (ii) any order, judgment or decree of any Governmental
Authority or arbitrator shall by its terms purport to enjoin or restrain the Issuing Lender from issuing, amending or reinstating such Letter of Credit, or any law, rule or regulation applicable to the Issuing Lender or any request, guideline or
directive (whether or not having the force of law) from any Governmental Authority with jurisdiction over the Issuing Lender shall prohibit, or request that the Issuing Lender refrain from, the issuance, amendment, renewal or reinstatement of
letters of credit generally or such Letter of Credit in particular or shall impose upon the Issuing Lender with respect to such Letter of Credit any restriction, reserve or capital requirement (for which the Issuing Lender is not otherwise
compensated) not in effect on the Second Amendment Effective Date, or shall impose upon the Issuing Lender any loss, cost or expense which was not applicable on the Second Amendment Effective Date, which the Issuing Lender in good faith deems
material to it and not subject to reimbursement by the Borrower in accordance with this Section 2.1.3; (iii) the Issuing Lender has received written notice from any Lender, the Administrative Agent or the Borrower, at least one (1)
Business Day prior to the requested date of issuance, amendment, renewal or reinstatement of such Letter of Credit, that one 

  
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or more of the applicable conditions contained in Section 3.2 shall not then be satisfied; (iv) any requested Letter of Credit is not in form and substance acceptable to the
Issuing Lender, or the issuance, amendment or renewal of a Letter of Credit shall violate any applicable laws or regulations or any applicable policies of the Issuing Lender; (v) such Letter of Credit contains any provisions providing for
automatic reinstatement of the stated amount after any drawing thereunder; (vi) except as otherwise agreed by the Administrative Agent and the Issuing Lender, such Letter of Credit is in an initial face amount less than the Dollar Equivalent of
Five Hundred Thousand Dollars ($500,000.00); or (vii) any Lender is at that time a Defaulting Lender, unless the Issuing Lender has entered into arrangements, including the delivery of Cash Collateral pursuant to Section 2.1.3(g),
satisfactory to the Issuing Lender (in its sole discretion) with the Borrower or such Defaulting Lender to eliminate the Issuing Lender’s actual or potential Fronting Exposure with respect to the Defaulting Lender arising from either the Letter
of Credit then proposed to be issued or such Letter of Credit and all other L/C Exposure as to which the Issuing Lender has actual or potential Fronting Exposure, as it may elect in its sole discretion. 

(c)    Procedures for Issuance of Letters of Credit. The Borrower may from time to time request that the Issuing
Lender issue a Letter of Credit for the account of the Borrower by delivering to the Issuing Lender at its address for notices specified herein an Application therefor, completed to the satisfaction of the Issuing Lender, and such other
certificates, documents and other papers and information as the Issuing Lender may request. Upon receipt of any Application, the Issuing Lender will process such Application and the certificates, documents and other papers and information delivered
to it in connection therewith in accordance with its customary procedures and shall promptly issue the Letter of Credit requested thereby (but in no event shall the Issuing Lender be required to issue any Letter of Credit earlier than three (3)
Business Days after its receipt of the Application therefor and all such other certificates, documents and other papers and information relating thereto) by issuing the original of such Letter of Credit to the beneficiary thereof or as otherwise may
be agreed to by the Issuing Lender and the Borrower. The Issuing Lender shall furnish a copy of such Letter of Credit to the Borrower promptly following the issuance thereof. The Issuing Lender shall promptly furnish to the Administrative Agent,
which shall in turn promptly furnish to the Lenders, notice of the issuance of each Letter of Credit (including the amount thereof). 

(d)    Fees and Other Charges. 

(i)    The Borrower agrees to pay, with respect to each outstanding Letter of Credit issued for the account of (or at the
request of) the Borrower, (X) a fronting fee of 0.125% per annum on the daily amount available to be drawn under each such Letter of Credit to the Issuing Lender for its own account (a “Letter of Credit Fronting Fee”), and
(Y) a letter of credit fee of 2.00% per annum multiplied by the daily 

  
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amount available to be drawn under each such Letter of Credit on the drawable amount of such Letter of Credit to the Administrative Agent for the ratable account of the L/C Lenders (determined in
accordance with their respective L/C Percentages) (a “Letter of Credit Fee”), in each case payable quarterly in arrears on the last Business Day of March, June, September and December of each year and on the Letter of Credit
Maturity Date (each, an “L/C Fee Payment Date”) after the issuance date of such Letter of Credit, and (Z) the Issuing Lender’s standard and reasonable fees with respect to the issuance, amendment, renewal or extension of
any Letter of Credit issued for the account of (or at the request of) the Borrower or processing of drawings thereunder (the fees in this clause (Z), collectively, the “Issuing Lender Fees”). All Letter of Credit Fronting Fees
and Letter of Credit Fees shall be computed on the basis of the actual number of days elapsed in a year of 360 days. 

(ii)    In addition to the foregoing fees, the Borrower shall pay or reimburse the Issuing Lender for such normal and
customary costs and expenses as are incurred or charged by the Issuing Lender in issuing, negotiating, effecting payment under, amending or otherwise administering any Letter of Credit. 

(iii)    The Borrower shall furnish to the Issuing Lender and the Administrative Agent such other documents and
information pertaining to any requested Letter of Credit issuance, amendment or renewal, including any L/C-Related Documents, as the Issuing Lender or the Administrative Agent may reasonably require. This
Agreement shall control in the event of any conflict with any L/C-Related Document (other than any Letter of Credit). 

(iv)    Any letter of credit fees otherwise payable for the account of a Defaulting Lender with respect to any Letter of
Credit as to which such Defaulting Lender has not provided Cash Collateral satisfactory to the Issuing Lender pursuant to Section 2.1.3(l) shall be payable, to the maximum extent permitted by applicable law, to the other L/C Lenders in
accordance with the upward adjustments in their respective L/C Percentages allocable to such Letter of Credit, with the balance of such fee, if any, payable to the Issuing Lender for its own account. 

(v)    All fees payable under this Section 2.1.3(d) shall be fully earned on the date paid and nonrefundable. 

(vi)    To guard against fluctuations in currency exchange rates, upon the issuance of any Letter of Credit payable in a
Foreign Currency, Issuing Lender shall create a reserve (the “Letter of Credit Reserve”) under the Revolving Line in an amount equal to a percentage (which percentage shall be determined by Issuing Lender in its reasonable
discretion) of the face amount of such Letter of Credit. The amount of the Letter of Credit Reserve may be adjusted by Issuing Lender from time to time to account for fluctuations in the exchange rate. The availability of funds under the Revolving
Line shall be reduced by the amount of such Letter of Credit Reserve for as long as such Letter of Credit remains outstanding. 

  
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 (e)    L/C Participations.    The Issuing Lender
irrevocably agrees to grant and hereby grants to each L/C Lender, and, to induce the Issuing Lender to issue Letters of Credit, each L/C Lender irrevocably agrees to accept and purchase and hereby accepts and purchases from the Issuing Lender, on
the terms and conditions set forth below, for such L/C Lender’s own account and risk an undivided interest equal to such L/C Lender’s L/C Percentage in the Issuing Lender’s obligations and rights under and in respect of each Letter of
Credit and the amount of each draft paid by the Issuing Lender thereunder. Each L/C Lender agrees with the Issuing Lender that, if a draft is paid under any Letter of Credit for which the Issuing Lender is not reimbursed in full by the Borrower
pursuant to Section 2.1.3(g), such L/C Lender shall pay to the Issuing Lender upon demand at the Issuing Lender’s address for notices specified herein an amount equal to such L/C Lender’s L/C Percentage of the amount of such draft (or
the Dollar Equivalent thereof with respect to any Letters of Credit payable in a Foreign Currency), or any part thereof, that is not so reimbursed. Each L/C Lender’s obligation to pay such amount shall be absolute and unconditional and shall
not be affected by any circumstance, including (i) any setoff, counterclaim, recoupment, defense or other right that such L/C Lender may have against the Issuing Lender, the Borrower or any other Person for any reason whatsoever, (ii) the
occurrence of an Event of Default or the failure to satisfy any of the other conditions specified in Section 3.2, (iii) any adverse change in the condition (financial or otherwise) of the Borrower, (iv) any breach of this Agreement or any
other Loan Document by the Borrower or any other L/C Lender, or (v) any other circumstance, happening or event whatsoever, whether or not similar to any of the foregoing. 

(f)    Existing Letters of Credit. The Existing Letters of Credit shall in no case be deemed to be a Letter of
Credit outstanding under this Agreement and shall not be entitled to the benefits of this Agreement or any other Loan Document. 

(g)    Reimbursement. 

(i)    If the Issuing Lender shall make any L/C Disbursement in respect of a Letter of Credit, the Issuing Lender shall
notify the Borrower and the Administrative Agent thereof and the Borrower shall pay or cause to be paid to the Issuing Lender an amount equal to the entire amount of such L/C Disbursement not later than the immediately following Business Day. Each
such payment shall be made to the Issuing Lender at its address for notices referred to herein, in Dollars and in immediately available funds. 

(ii)    If the Issuing Lender shall not have received from the Borrower the payment that it is required to make pursuant
to (g)(i) above, with respect to a Letter of Credit within the time specified in such clause, the Issuing Lender will promptly notify the Administrative Agent of the L/C 

  
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Disbursement and the Administrative Agent will promptly notify each L/C Lender of such L/C Disbursement and its L/C Percentage thereof, and each L/C Lender shall pay to the Issuing Lender upon
demand at the Issuing Lender’s address for notices specified herein an amount equal to such L/C Lender’s L/C Percentage of such L/C Disbursement, or the Dollar Equivalent thereof with respect to any Letters of Credit payable in a Foreign
Currency (and the Administrative Agent may apply Cash Collateral provided for this purpose); upon such payment pursuant to this paragraph to reimburse the Issuing Lender for any L/C Disbursement, the Borrower shall be required to reimburse the L/C
Lenders for such payments (including interest accrued thereon from the date of such payment until the date of such reimbursement at the rate applicable to Overadvances) on demand; provided that if at the time of and after giving effect
to such payment by the L/C Lenders, the conditions to borrowings set forth in Section 3.2 are satisfied, the Borrower may, by written notice to the Administrative Agent certifying that such conditions are satisfied and that all interest owing
under this paragraph has been paid, request that such payments by the L/C Lenders be converted into an Advance under the Revolving Line (a “Revolving Loan Conversion”), in which case, if such conditions are in fact satisfied, the
L/C Lenders shall be deemed to have extended, and the Borrower shall be deemed to have accepted, an Advance in the aggregate principal amount of such payment without further action on the part of any party, and the Total L/C Commitments shall be
permanently reduced by such amount; any amount so paid pursuant to this paragraph shall, on and after the payment date thereof, be deemed to be Advances for all purposes hereunder; provided that the Issuing Lender, at its option, may
effectuate a Revolving Loan Conversion regardless of whether the conditions to borrowings set forth in Section 3.2 are satisfied. 

(iii)    Promptly following receipt by the Administrative Agent (or the Issuing Lender, as the case may be) of a payment
from the Borrower with respect to an L/C Disbursement, the Administrative Agent (or the Issuing Lender) shall, to the extent that the L/C Lenders have made payments pursuant to this paragraph to reimburse the Issuing Lender, repay such L/C Lenders
on a pro rata basis. 
 (h)    Obligations Absolute. The Borrower’s obligations under this Section 2.1.3
shall be absolute and unconditional under any and all circumstances and irrespective of any setoff, counterclaim or defense to payment that the Borrower may have or have had against the Issuing Lender or any L/C Lender, any beneficiary of a Letter
of Credit or any other Person. The Borrower also agrees with the Issuing Lender that the Issuing Lender or any L/C Lender shall not be responsible for, and the Borrower’s obligations hereunder shall not be affected by, among other things, the
validity or genuineness of documents or of any endorsements thereon, even though such documents shall in fact prove to be 

  
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invalid, fraudulent or forged, or any dispute between or among the Borrower and any beneficiary of any Letter of Credit or any other party to which such Letter of Credit may be transferred or any
claims whatsoever of the Borrower against any beneficiary of such Letter of Credit or any such transferee. The Issuing Lender and any L/C Lender shall not be liable for any error, omission, interruption or delay in transmission, dispatch or delivery
of any message or advice, however transmitted, in connection with any Letter of Credit, except for errors or omissions found by a final and nonappealable decision of a court of competent jurisdiction to have resulted from the gross negligence or
willful misconduct of the Issuing Lender or any L/C Lender. The Borrower agrees that any action taken or omitted by the Issuing Lender or any L/C Lender under or in connection with any Letter of Credit or the related drafts or documents, if done in
the absence of gross negligence or willful misconduct, shall be binding on the Borrower and shall not result in any liability of the Issuing Lender or any L/C Lender to the Borrower. In addition to amounts payable as elsewhere provided in the
Agreement, the Borrower hereby agrees to pay and to protect, indemnify, and save Issuing Lender and any L/C Lender harmless from and against any and all claims, demands, liabilities, damages, losses, costs, charges and expenses (including reasonable
attorneys’ fees and allocated costs of internal counsel) that the Issuing Lender or any L/C Lender may incur or be subject to as a consequence, direct or indirect, of (i) the issuance of any Letter of Credit, or (ii) the failure of
Issuing Lender or of any L/C Lender to honor a demand for payment under any Letter of Credit thereof as a result of any act or omission, whether rightful or wrongful, of any present or future de jure or de facto government or Governmental Authority,
in each case other than to the extent solely as a result of the gross negligence or willful misconduct of Issuing Lender or such L/C Lender (as finally determined by a court of competent jurisdiction). 

(i)    Letter of Credit Payments. If any draft shall be presented for payment under any Letter of Credit, the
Issuing Lender shall promptly notify the Borrower and the Administrative Agent of the date and amount thereof. The responsibility of the Issuing Lender to the Borrower in connection with any draft presented for payment under any Letter of Credit
shall, in addition to any payment obligation expressly provided for in such Letter of Credit, be limited to determining that the documents (including each draft) delivered under such Letter of Credit in connection with such presentment are
substantially in conformity with such Letter of Credit. 
 (j)    Applications. To the extent that any provision
of any Application related to any Letter of Credit is inconsistent with the provisions of this Section 2.1.3, the provisions of this Section 2.1.3 shall apply. 

(k)    Interim Interest. If the Issuing Lender shall make any L/C Disbursement in respect of a Letter of Credit,
then, unless either the Borrower shall have reimbursed such L/C Disbursement in full within the time period specified in Section 2.1.3(g) or the L/C Lenders shall have reimbursed such L/C Disbursement

  
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in full on such date as provided in Section 2.1.3(g), in each case the unpaid amount thereof shall bear interest for the account of the Issuing Lender, for each day from and including the
date of such L/C Disbursement to but excluding the date of payment by the Borrower, at the rate per annum that would apply to an Overadvance. 

(l)    Cash Collateral. 

(i)    Certain Credit Support Events. Upon the request of the Administrative Agent or the Issuing Lender
(X) if the Issuing Lender has honored any full or partial drawing request under any Letter of Credit and such drawing has resulted in an L/C Advance by all the L/C Lenders that is not reimbursed by the Borrower or converted into an Advance
under the Revolving Line pursuant to Section 2.1.3(g)(ii), or (Y) if, as of the Letter of Credit Maturity Date, any L/C Exposure for any reason remains outstanding, the Borrower shall, in each case, immediately Cash Collateralize the then
effective L/C Exposure in an amount equal to 105% of such L/C Exposure. 
 At any time that there shall exist a Defaulting Lender, within
one (1) Business Day following the request of the Administrative Agent or the Issuing Lender (with a copy to the Administrative Agent), the Borrower shall deliver to the Administrative Agent Cash Collateral in an amount sufficient to cover 105%
of the Fronting Exposure relating to the Letters of Credit (after giving effect to any Cash Collateral provided by such Defaulting Lender). 

(ii)    Grant of Security Interest. All Cash Collateral (other than credit support not constituting funds subject
to deposit) shall be maintained in blocked, non-interest bearing deposit accounts with the Administrative Agent. The Borrower, and to the extent provided by any Lender or Defaulting Lender, such Lender or
Defaulting Lender, hereby grants to (and subjects to the control of) the Administrative Agent, for the benefit of the Administrative Agent, the Issuing Lender and the L/C Lenders, and agrees to maintain, a first priority security interest and Lien
in all such Cash Collateral and in all proceeds thereof, as security for the Obligations to which such Cash Collateral may be applied pursuant to Section 2.1.3(l)(iii) below. If at any time the Administrative Agent determines that Cash
Collateral is subject to any right or claim of any Person other than the Administrative Agent or any Issuing Lender as herein provided, or that the total amount of such Cash Collateral is less than 105% of the applicable L/C Exposure, Fronting
Exposure and other Obligations secured thereby, the Borrower or the relevant Lender or Defaulting Lender, as applicable, will, promptly upon demand by the Administrative Agent, pay or provide to the Administrative Agent additional Cash Collateral in
an amount sufficient to eliminate such deficiency (after giving effect to any Cash Collateral provided by such Defaulting Lender). 

  
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 (iii)    Application. Notwithstanding anything to the contrary
contained in this Agreement, Cash Collateral provided under this section or otherwise in respect of Letters of Credit shall be held and applied to the satisfaction of the specific L/C Exposure, obligations to fund participations therein (including,
as to Cash Collateral provided by a Defaulting Lender, any interest accrued on such obligation) and other obligations for which the Cash Collateral was so provided, prior to any other application of such property as may otherwise be provided for
herein. 
 (iv)    Termination of Requirement. Cash Collateral (or the appropriate portion thereof) provided to
reduce Fronting Exposure in respect of Letters of Credit or other Obligations shall no longer be required to be held as Cash Collateral pursuant to this Section 2.1.3(l) following (X) the elimination of the applicable Fronting Exposure and
other Obligations giving rise thereto (including by the termination of the Defaulting Lender status of the applicable Lender), or (Y) a determination by the Administrative Agent and the Issuing Lender that there exists excess Cash Collateral;
provided, however, (I) that Cash Collateral furnished by or on behalf of a Borrower shall not be released during the continuance of an Event of Default, and (II) that the Person providing such Cash Collateral and the Issuing
Lender may agree that such Cash Collateral shall not be released but instead shall be held to support future anticipated Fronting Exposure or other obligations; and provided further, that to the extent that such Cash Collateral was
provided by the Borrower, such Cash Collateral shall remain subject to any security interest and Lien granted pursuant to the Loan Documents. 

(m)    Additional Issuing Lenders. The Borrower may, at any time and from time to time with the consent of the
Administrative Agent (which consent shall not be unreasonably withheld) and such Lender, designate one or more additional Lenders to act as an issuing bank under the terms of this Agreement. Any Lender designated as an issuing bank pursuant to this
paragraph shall be deemed to be an “Issuing Lender” (in addition to being a Lender) in respect of Letters of Credit issued or to be issued by such Lender, and, with respect to such Letters of Credit, such term shall thereafter apply to the
other Issuing Lender and such Lender. 
 (n)    Resignation of the Issuing Lender. The Issuing Lender may resign
at any time by giving at least 30 days’ prior written notice to the Administrative Agent, the Lenders and the Borrower. Subject to the next succeeding paragraph, upon the acceptance of any appointment as the Issuing Lender hereunder by a Lender
that shall agree to serve as successor Issuing Lender, such successor shall succeed to and become vested with all the interests, rights and obligations of the retiring Issuing Lender and the retiring Issuing Lender shall be discharged from its
obligations to issue additional Letters of Credit hereunder without affecting its rights and obligations with respect to Letters of Credit previously issued by it. At the time such resignation shall become effective, the Borrower shall pay all

  
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accrued and unpaid fees pursuant to Section 2.1.3(c). The acceptance of any appointment as the Issuing Lender hereunder by a successor Lender shall be evidenced by an agreement entered into
by such successor, in a form satisfactory to the Borrower and the Administrative Agent, and, from and after the effective date of such agreement, (i) such successor Lender shall have all the rights and obligations of the previous Issuing Lender
under this Agreement and the other Loan Documents and (ii) references herein and in the other Loan Documents to the term “Issuing Lender” shall be deemed to refer to such successor or to any previous Issuing Lender, or to such
successor and all previous Issuing Lenders, as the context shall require. After the resignation of the Issuing Lender hereunder, the retiring Issuing Lender shall remain a party hereto and shall continue to have all the rights and obligations of an
Issuing Lender under this Agreement and the other Loan Documents with respect to Letters of Credit issued by it prior to such resignation, but shall not be required to issue additional Letters of Credit or to extend, renew or increase any existing
Letter of Credit. 
 (o)    Applicability of UCP and ISP. Unless otherwise expressly agreed by the Issuing Lender
and the Borrower when a Letter of Credit is issued and subject to applicable laws, the Letters of Credit shall be governed by and subject to (i) with respect to standby Letters of Credit, the rules of the ISP, and (b) with respect to
commercial Letters of Credit, the rules of the Uniform Customs and Practice for Documentary Credits, as published in its most recent version by the International Chamber of Commerce on the date any commercial Letter of Credit is issued.” 

2.2    Section 2.1.4 (Term Loan 2017). The Loan Agreement shall be amended by inserting the following new
Section 2.1.4 immediately following Section 2.1.3 thereof: 
 “2.1.4 Term Loan 2017. 

(a)    Availability. Subject to the terms and conditions of this Agreement, the Lenders, severally and not jointly,
shall make one (1) term loan (the “Term Loan 2017”) to Borrower on the Second Amendment Effective Date in an aggregate principal amount of Thirty Million Dollars ($30,000,000.00); provided that a portion of the
proceeds of the Term Loan 2017 shall be used to repay in full Borrower’s outstanding Existing Term Loan Obligations. Borrower hereby authorizes Agent to apply such portion of the proceeds to the Existing Term Loan Obligations as part of the
funding process without actually depositing such funds in an account of Borrower. 
 (b)    Interest. Commencing
on the first (1st) Payment Date of the month following the month in which the Funding Date of the Term Loan 2017 occurs, and continuing on each Payment Date thereafter, Borrower shall make monthly
payments of interest on the outstanding principal amount of the Term Loan 2017 at the rate set forth in Section 2.3(a). 

  
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 (c)    Repayment. Commencing on December 1, 2018 and continuing
on each Payment Date thereafter, Borrower shall repay the Term Loan 2017 in (i) twenty-four (24) equal monthly installments of principal, based on a forty-eight (48) month amortization schedule; plus (ii) monthly payments
of accrued interest at the rate set forth in Section 2.3(a). All outstanding principal and accrued and unpaid interest with respect to the Term Loan 2017, and all other outstanding Obligations with respect to the Term Loan 2017, are due and
payable in full on the Term Loan 2017 Maturity Date. Once repaid, no portion of the Term Loan 2017 may be reborrowed. 

(d)    Voluntary Prepayment. Borrower shall have the option to prepay all or any portion of the Term Loan 2017,
provided Borrower (i) provides written notice to Agent of its election to prepay the Term Loan 2017 at least three (3) days prior to such prepayment and (ii) pays, on the date of such prepayment, (a) the principal amount of the
Term Loan 2017 to be repaid and accrued but unpaid interest, plus (b) the applicable Term Loan 2017 Prepayment Premium, plus (c) all other sums, including Lender Expenses, if any, that shall have become due and payable.
Voluntary prepayments hereunder shall be in a minimum principal amount of Five Million Dollars ($5,000,000.00) and increments of One Million Dollars ($1,000,000.00) in excess thereof (or if less, the then-remaining outstanding principal balance of
the Term Loan 2017). Notwithstanding the foregoing, Borrower may rescind any notice of prepayment by notice to the Agent on or before the date of prepayment if such prepayment would have resulted from a refinancing or occurrence of another event,
which refinancing or event shall not be consummated or shall otherwise be delayed. 
 (d)    Mandatory Prepayment upon
an Acceleration. If the Term Loan 2017 is accelerated following the occurrence of an Event of Default (including, without limitation, an Event of Default pursuant to Section 8.5 hereof), Borrower shall immediately pay to Agent, for the
ratable benefit of the Term Loan 2017 Lenders, an amount equal to the sum of (i) all outstanding principal of the Term Loan 2017 and accrued but unpaid interest thereon, plus (ii) the applicable Term Loan 2017 Prepayment Premium on
the full outstanding principal balance of the Term Loan 2017, plus (iii) all other sums, including Lender Expenses, if any, that shall have become due and payable.” 

2.3    Section 2.2 (Overadvances). Section 2.2 is deleted in its entirety and replaced with the
following: 
 “2.2    Overadvances. If, at any time, the sum of (a) the outstanding principal
amount of any Advances, plus (b) the face amount of any outstanding Letters of Credit (including drawn but unreimbursed Letters of Credit and any Letter of Credit Reserve) exceeds the lesser of either the Revolving Line or the Borrowing Base,
Borrower shall immediately pay to Agent, for the ratable benefit of the Lenders in cash the amount of such excess (such excess, the “Overadvance”). Without limiting Borrower’s obligation to repay Agent and the Lenders any
Overadvance, Borrower agrees to pay Agent, for the ratable benefit of the Lenders, interest on the outstanding amount of any Overadvance, on demand, at the Default Rate.” 

  
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 2.4    Section 2.3 (Payment of Interest on the Credit
Extensions). Subsection (a) of Section 2.3 is deleted in its entirety and replaced with the following: 

“(a)    Interest Rate. 

(i)    Advances. Subject to Section 2.3(b), the principal amount outstanding under the Revolving Line shall
accrue interest at a floating per annum rate equal to the Prime Rate plus one and three-quarters of one percent (1.75%), which interest shall be payable monthly in accordance with Section 2.3(d) below. 

(ii)    Term Loan 2017. Subject to Section 2.3(b), the principal amount outstanding under the Term Loan 2017
shall accrue interest at a floating per annum rate equal to the Prime Rate plus two and one-quarter of one percent (2.25%), which interest shall be payable monthly. 

2.5    Section 2.4 (Fees). Subsection (d) of Section 2.4 is amended in its entirety and replaced
with the following: 
 “(d)    Unused Revolving Line Facility Fee. Payable quarterly in arrears on the last
day of each calendar quarter occurring prior to the Revolving Line Maturity Date, and on the Revolving Line Maturity Date, a fee (the “Unused Revolving Line Facility Fee”) in an amount equal to one half of one percent (0.50%) per
annum of the average unused portion of the Revolving Line for such calendar quarter. The average unused portion of the Revolving Line for such quarter, for purposes of this calculation, shall be the difference between (x) the Revolving Line,
and (y) the average daily closing balance of the Revolving Line outstanding during the quarter, plus the sum of the aggregate amount of outstanding Letters of Credit (including drawn but unreimbursed Letters of Credit and any Letter of Credit
Reserve) during the quarter; and” 
 2.6    Section 2.4 (Fees). Section 2.4 shall be amended by
inserting the following new subsection (g) immediately following subsection (f) thereof: 
 “(g)    
Letter of Credit Fee. The Issuing Lender’s customary fees and expenses for the issuance or renewal of Letters of Credit as and when due pursuant to Section 2.1.3(d) hereof.” 

  
 12 

 2.7    Section 6.2 (Financial Statements, Reports,
Certificates). Subsection (d) of Section 6.2 is amended in its entirety and replaced with the following: 

“(d)    Quarterly Lenders’ Meeting. Quarterly, as soon as practicable, but no later than sixty
(60) days after the end of each fiscal quarter, one or more Responsible Officers shall meet with the Lenders to discuss Borrower’s past performance and future plans, in detail reasonably acceptable to the Lenders; provided,
however, that, in Borrower’s reasonable discretion, Borrower may provide a written quarterly Management Discussion and Analysis (“MD&A”) disclosure to Lenders in a form substantially similar to the MD&A reporting
requirements under the Exchange Act for filing Form 10-Q and Form 10-K, in which case the quarterly meetings described in this clause (d) shall not be
required;” 
 2.8    Section 6.7 (Financial Covenants). Section 6.7 is deleted in its
entirety and replaced with the following: 
 “(a)    Minimum Net Billings. For each trailing
three-month period ending at the end of each month, commencing with the three month period ending November 30, 2017 and continuing through and including the three-month period ending February 28, 2018, maintain Net Billings of not less
than eighty percent (80%) of the corresponding monthly amount indicated in the excel file “Avalara 2017 Consolidated Financial Model v.4.3 Monthly Details” agreed to by Agent, the Lenders and Borrower, delivered to Lenders as of
November 1, 2017. 
 For the monthly period ending March 31, 2018 and each monthly period ending thereafter, the
Minimum Net Billings requirements shall be determined by Agent, Lenders and Borrower following receipt of Borrower’s projections approved by the Board for the period from January 1, 2018 through March 31, 2019, as delivered in
accordance with Section 6.2. The failure of Borrower, Agent and Lenders to mutually agree on the minimum Net Billings requirements in writing after good faith, reasonable negotiations, on or before March 31 of each fiscal year for the
corresponding annual period shall result in an immediate Event of Default for which there shall be no grace or cure period. 

(b)    Minimum Liquidity. Minimum Liquidity, tested as of the last day of each month, in an amount equal to or
greater than Fifteen Million Dollars ($15,000,000.00).” 
 2.9    Section 6.11 (Formation or Acquisition
of Subsidiaries). The following sentence shall be added to the end of Section 6.11: 
 “The foregoing requirements and
provisions of this Section 6.11 shall not be applicable to AFTC and/or any direct or indirect Foreign Subsidiary of AFTC.” 

  
 13 

 2.10    Section 7.11 (AFTC). The following new
Section 7.11 is hereby inserted immediately following Section 7.10 thereof: 

“7.11    AFTC.    At any time, (i) permit AFTC and/or any of its Foreign
Subsidiaries, to (A) maintain any assets (other than cash permitted by clause (B) hereof) in excess of One Hundred Thousand Dollars ($100,000.00) or incur any liabilities (other than liabilities arising from unpaid tax collections) in
excess of One Hundred Thousand Dollars ($100,000.00): (B) maintain any cash, other than (I) cash resulting from Permitted Intercompany Indebtedness, Investment permitted pursuant to clause (g)(iii) of the definition of Permitted
Investments, or tax collections from customers until such time as such tax collections are remitted to the applicable taxing authority and (II) cash amounts necessary to cover the filing fees and taxes to maintain such entities existence and
good standing in each applicable jurisdiction; (C) conduct any operations other than those directly related to maintain its existence and/or the collection and payment of taxes on behalf of itself and its customers; and (D) maintain any
Intellectual Property; and (ii) permit AFTC to create, acquire or otherwise establish any Domestic Subsidiary.” 

2.11    Section 9.1 (Rights and Remedies). Subsection (c) of Section 9.1 is amended in its entirety
and replaced with the following: 
 “(c)    for any Letters of Credit, demand that Borrower (i) deposit cash
with the Issuing Lender in an amount equal to at least 105% of the Dollar Equivalent of the aggregate face amount of all Letters of Credit remaining undrawn (plus, in each case, all interest, fees, and costs due or to become due in connection
therewith (as estimated by the Issuing Lender in its good faith business judgment)), to secure all of the Obligations relating to such Letters of Credit, as collateral security for the repayment of any future drawings under such Letters of Credit,
and Borrower shall forthwith deposit and pay such amounts, and (ii) pay in advance all letter of credit fees scheduled to be paid or payable over the remaining term of any Letters of Credit;” 

2.12    Section 14 (Definitions). The following definitions appearing in Section 14.1 are amended in
their entirety and replaced with the following: 
 “Availability Amount” is (a) the lesser of (i) the Revolving
Line or (ii) the amount available under the Borrowing Base; minus (b) the aggregate Dollar Equivalent amount of all outstanding Letters of Credit (including drawn but unreimbursed Letters of Credit) plus an amount equal to the
Letter of Credit Reserve; minus (c) the outstanding principal balance of any Advances. 
 “Credit Extension” is
any Advance, Overadvance, Term Loan 2017, Letter of Credit or any other extension of credit by Agent or any Lender for Borrower’s benefit under this Agreement. 

“Minimum Liquidity” is, as of any date of measurement, the sum of (i) Borrower’s Qualified Cash; plus
(ii) the unused Availability Amount. 
 “Net Revenue Retention Rate” is, for any Subject Quarter, expressed as a
percentage, and calculated by dividing (a) total revenue as of the last day of the immediately preceding quarter from any billing accounts that generated revenue during the corresponding quarter of the prior year by (b) total revenue in
such 

  
 14 

 
corresponding quarter from those same billing accounts. This calculation shall include changes during the period for such billing accounts, such as additional solutions purchased, changes in
pricing and transaction volume, and terminations, but does not reflect revenue for new billing accounts added during such one-year period. The Net Revenue Retention Rate calculation includes only customers
with unique account identifiers in Borrower’s primary U.S. billing systems and does not include customers that subscribe to Borrower’s solutions through its international subsidiaries or certain legacy billing systems that are primarily
related to past acquisitions by Borrower. 
 “Permitted Intercompany Indebtedness” means loans by Avalara to (i) AFTC
and (ii) Foreign Subsidiaries, in each case to the extent permitted under this Agreement. 
 “Prime Rate” is the
greater of (i) four and one-quarter percent (4.25%) and (ii) the rate of interest per annum from time to time published in the money rates section of The Wall Street Journal or any successor
publication thereto as the “prime rate” then in effect; provided that if such rate of interest, as set forth from time to time in the money rates section of The Wall Street Journal, becomes unavailable for any reason as
determined by Agent, the “Prime Rate” shall mean the rate of interest per annum announced by Agent as its prime rate in effect at its principal office in the State of California (such Agent announced Prime Rate not being intended to
be the lowest rate of interest charged by Agent in connection with extensions of credit to debtors). 
 “Qualified Cash” is,
as of any date of determination, the amount of unrestricted cash and Cash Equivalents of Borrower and its Subsidiaries that is subject only to the first-priority perfected security interest of Agent, and is not subject to any other Lien. 

“Recurring Revenue” is, for the relevant period, the subscription and returns revenue of Borrower as reported in
Borrower’s financial statements. 
 “Revolving Line” is an aggregate principal amount not to exceed Fifty Million
Dollars ($50,000,000.00) outstanding at any time. 
 “Revolving Line Maturity Date” is November 15, 2019
(two (2) years after the Second Amendment Effective Date). 
 2.13    Section 14
(Definitions). The following new definitions are hereby inserted in Section 14.1, each in its applicable alphabetical order: 

“AFTC” is AFTC, Inc., a Washington corporation and wholly owned Subsidiary of Avalara. 

“Application” is an application, in such form as the Issuing Lender may specify from time to time, requesting the Issuing
Lender to issue a Letter of Credit. 
 “Cash Collateralize” means, with respect to Obligations in respect of Letters of
Credit, to deposit in a Collateral Account or to pledge and deposit with or deliver to the Administrative Agent, for the benefit of the Issuing Lender and one or more 

  
 15 

 
of the Lenders, as applicable, as collateral for L/C Exposure or obligations of the Lenders to fund participations in respect thereof, cash or deposit account balances or, if the Administrative
Agent and the Issuing Lender shall agree in their sole discretion, other credit support, in each case pursuant to documentation in form and substance satisfactory to the Administrative Agent and such Issuing Lender. 

“Cash Collateral” shall have a meaning correlative to the foregoing and shall include the proceeds of such cash collateral and
other credit support. 
 “Existing Letters of Credit” means the letters of credit described on Exhibit A to the Second
Amendment, and any extensions, renewals or increases thereof. 
 “Existing Term Loan Obligations” are all outstanding
Obligations under the Term Loan owed by Borrower to Agent and the Lenders. 
 “Fronting Exposure” is, at any time there is a
Defaulting Lender with respect to the Issuing Lender, such Defaulting Lender’s L/C Percentage of the outstanding L/C Exposure other than L/C Exposure as to which such Defaulting Lender’s participation obligation has been reallocated to
other Lenders or Cash Collateralized in accordance with the terms hereof. 
 “Issuing Lender” and “Issuing
Lenders” is, as the context may require, (a) SVB or any Affiliate thereof, in its capacity as issuer of any Letter of Credit, and (b) any other Lender with an L/C Commitment that may become an Issuing Lender with respect to
Letters of Credit issued by such Issuing Lender. 
 “Issuing Lender Fees” is defined in Section 2.1.3(d). 

“L/C Advance” is each L/C Lender’s funding of its participation in any L/C Disbursement in accordance with its L/C
Percentage of the L/C Commitment. 
 “L/C Commitment” means, as to any L/C Lender, the obligation of such L/C Lender, if
any, to purchase an undivided interest in the Issuing Lender’s obligations and rights under and in respect of each Letter of Credit (including to make payments with respect to draws made under any Letter of Credit pursuant to
Section 2.1.3(e) in an aggregate principal amount not to exceed the amount set forth under the heading “L/C Commitment” opposite such L/C Lender’s name on Schedule 1.1A, as the same may be changed from time to time
pursuant to the terms hereof. The L/C Commitment is a sublimit of the Revolving Line Commitment and the aggregate amount of the L/C Commitments shall not exceed the amount of the Total L/C Commitments at any time. 

“L/C Disbursements” means a payment or disbursement made by the Issuing Lender pursuant to a Letter of Credit. 

“L/C Exposure” is, at any time, the sum of (a) the aggregate undrawn amount of all outstanding Letters of Credit at such
time, and (b) the aggregate amount of all L/C Disbursements that have not yet been reimbursed or converted into Advances under the Revolving Line at such time, or, in each case, the Dollar Equivalent of such amounts with respect to any Letters
of Credit payable in a Foreign Currency. The L/C Exposure of any L/C Lender at any time shall equal its L/C Percentage of the aggregate L/C Exposure at such time. 

  
 16 

 “L/C Facility” means the L/C Commitments and the extensions of credit made
thereunder, in each case as a sublimit of the Revolving Line. 
 “L/C Fee Payment Date” is defined in Section 2.1.3(d).

 “L/C Lender” means a Lender with an L/C Commitment. 

“L/C Percentage” is, as to any L/C Lender at any time, the percentage of the Total L/C Commitments represented by such L/C
Lender’s L/C Commitment. 
 “L/C-Related Documents” means, collectively, each
Letter of Credit, all applications for any Letter of Credit (and applications for the amendment of any Letter of Credit) submitted by the Borrower to the Issuing Lender and any other document, agreement and instrument relating to any Letter of
Credit, including any of the Issuing Lender’s standard form documents for letter of credit issuances. 
 “Letter of
Credit” is as defined in Section 2.1.3(a); provided that such term shall not include each Existing Letter of Credit. 

“Letter of Credit Availability Period” is the period from and including the Second Amendment Effective Date to but excluding
the Letter of Credit Maturity Date. 
 “Letter of Credit Fees” is defined in Section 2.1.3(d). 

“Letter of Credit Fronting Fees” is defined in Section 2.1.3(d). 

“Letter of Credit Maturity Date” is the date occurring 15 days prior to the Revolving Line Maturity Date then in effect
(or, if such day is not a Business Day, the next preceding Business Day). 
 “Letter of Credit Reserve” is defined in
Section 2.1.3(d)(vi). 
 “Revolving Loan Conversion” is as defined in Section 2.1.3(g). 

“Second Amendment Effective Date” is November 15, 2017. 

“Term Loan 2017” has the meaning set forth in Section 2.1.4(a). 

“Term Loan 2017 Commitment” means, for any Lender, the obligation of such Lender to make a Term Loan 2017 on the Second
Amendment Effective Date, up to the principal amount shown on Schedule 1. “Term Loan 2017 Commitments” means the aggregate amount of such commitments of all Lenders. 

“Term Loan 2017 Commitment Percentage” means, as to any Lender at any time, the percentage of the Term Loan 2017 Commitments
represented by such Lender’s Term Loan 2017 Commitment at such time. The initial Term Loan 2017 Commitment Percentage of each Lender is set forth opposite the name of such Lender on Schedule 1. 

“Term Loan 2017 Maturity Date” is November 1, 2020. 

  
 17 

 “Term Loan 2017 Prepayment Premium” shall be an additional fee payable to Agent,
for the ratable benefit of the Term Loan 2017 Lenders in amount equal to one-half of one percent (0.50%) of the principal amount of the Term Loan 2017 being repaid. Notwithstanding any provision of this
Agreement to the contrary, there shall be no Term Loan 2017 Prepayment Premium in the event (i) the Term Loan 2017 is prepaid during the ninety (90) day period ending on the Term Loan 2017 Maturity Date; (ii) the Term Loan 2017 is
refinanced with any new loan facility in which SVB is a participating lender; or (iii) the Term Loan 2017 is repaid in connection with the proceeds of (a) an initial public offering of Borrower, or (b) an issuance of equity in a
financing round with a value greater than Fifty Million Dollars ($50,000,000.00). 
 “Total L/C Commitments” is at any time,
the sum of all L/C Commitments at such time, as the same may be reduced from time to time pursuant to Section 2.1.3(g). The initial amount of the Total L/C Commitments on the Second Amendment Effective Date is Ten Million Dollars
($10,000,000.00). 
 2.14    Section 14 (Definitions). Clauses (b) and (i) of the definition of
“Permitted Indebtedness” appearing in Section 14.1 are amended in their entirety and replaced with the following: 

“(b)    Indebtedness existing on the Second Amendment Effective Date and shown on the Perfection Certificate; 

(i) (i) Permitted Intercompany Indebtedness (excluding Permitted Intercompany Indebtedness to AFTC), in an aggregate amount not to exceed,
together with any additional Investments in Foreign Subsidiaries described in Section (g)(iv) of the definition of “Permitted Investments”, Ten Million Dollars ($10,000,000.00) outstanding at any time;; and (ii) Permitted Intercompany
Indebtedness to AFTC, in an aggregate amount not to exceed, together with any additional Investments in AFTC described in Section (g)(v) of the definition of “Permitted Investments”, One Million Dollars ($1,000,000.00) in any fiscal
year.” 
 2.15    Section 14 (Definitions). Clause (g) of the definition of “Permitted
Investments” appearing in Section 14.1 is amended in its entirety and replaced with the following: 

“(g)    Investments (i) by a Secured Credit Party in another Secured Credit Party, (ii) by Borrower in
Avalara Technologies Private Limited, a wholly-owned Subsidiary of Parent organized under the laws of India, not to exceed One Million Dollars ($1,000,000.00) in the aggregate in any calendar quarter; provided, however, that no such
Investment shall be permitted if an Event of Default has occurred and is continuing or would be caused by such Investment, (iii) by Non-Borrower Subsidiaries in other
Non-Borrower Subsidiaries not to exceed One Hundred Thousand Dollars ($100,000.00) in the aggregate in any fiscal year or in Borrower, (iv) additional Investments after the Effective Date of Avalara in

  
 18 

 
Foreign Subsidiaries, in an aggregate amount for all such additional Investments in Foreign Subsidiaries not to exceed, together with all outstanding Permitted Intercompany Indebtedness, Ten
Million Dollars ($10,000,000.00) at any time; and (v) Investments by Avalara in AFTC, in an aggregate amount not to exceed, together with all outstanding Intercompany Indebtedness owed by AFTC to Avalara, One Million Dollars ($1,000,000.00) in
any fiscal year.” 
 2.16    Exhibit D (Compliance Certificate). The Compliance Certificate
attached as Exhibit D to the Loan Agreement is amended in its entirety and replaced with Exhibit D attached hereto. 

2.17    Schedule 1 (Commitments). Schedule 1 to the Loan Agreement is deleted in its
entirety and replaced with Schedule 1 attached hereto. 
 2.18    Subordinated SVB Loan and
Security Agreement. Borrower acknowledges and agrees that (i) the “Draw Period” (as such term is defined in the Subordinated SVB Loan and Security Agreement) has expired under the Subordinated SVB Loan and Security Agreement;
(ii) SVB’s commitment to make a Term Loan Advance (as such term is defined in the Subordinated SVB Loan and Security Agreement) has terminated and SVB has no further commitment thereunder; and (iii) the Subordinated SVB Loan and
Security Agreement has terminated and is of no further force or effect. 
 3.    Limitation of Amendments. 

3.1    The amendments set forth in Section 2, above, are effective for the purposes set forth herein and shall
be limited precisely as written and shall not be deemed to (a) be a consent to any amendment, waiver or modification of any other term or condition of any Loan Document, or (b) otherwise prejudice any right or remedy which Agent or the
Lenders may now have or may have in the future under or in connection with any Loan Document. 
 3.2    This
Amendment shall be construed in connection with and as part of the Loan Documents and all terms, conditions, representations, warranties, covenants and agreements set forth in the Loan Documents, except as herein amended, are hereby ratified and
confirmed and shall remain in full force and effect. 
 4.    Representations and Warranties. To induce
Agent and each Lender to enter into this Amendment, Borrower hereby represents and warrants to Agent and the Lenders as follows: 

4.1    Immediately after giving effect to this Amendment (a) the representations and warranties contained in
the Loan Documents are true, accurate and complete in all material respects as of the date hereof (except to the extent such representations and warranties relate to an earlier date, in which case they are true and correct as of such date), and
(b) no Event of Default has occurred and is continuing; 
 4.2    Borrower has the power and authority to
execute and deliver this Amendment and to perform its obligations under the Loan Agreement, as amended by this Amendment; 

  
 19 

 4.3    The organizational documents of Borrower delivered to Agent on
the Effective Date or in connection with this Amendment remain true, accurate and complete and have not been amended, supplemented or restated and are and continue to be in full force and effect; 

4.4    The execution and delivery by Borrower of this Amendment and the performance by Borrower of its obligations
under the Loan Agreement, as amended by this Amendment, have been duly authorized; 
 4.5    The execution and
delivery by Borrower of this Amendment and the performance by Borrower of its obligations under the Loan Agreement, as amended by this Amendment, do not and will not contravene (a) any law or regulation binding on or affecting Borrower,
(b) any contractual restriction with a Person binding on Borrower, (c) any order, judgment or decree of any court or other governmental or public body or authority, or subdivision thereof, binding on Borrower, or (d) the
organizational documents of Borrower; 
 4.6    The execution and delivery by Borrower of this Amendment and the
performance by Borrower of its obligations under the Loan Agreement, as amended by this Amendment, do not require any order, consent, approval, license, authorization or validation of, or filing, recording or registration with, or exemption by any
governmental or public body or authority, or subdivision thereof, binding on Borrower, except as already has been obtained or made; and 

4.7    This Amendment has been duly executed and delivered by Borrower and is the binding obligation of Borrower,
enforceable against Borrower in accordance with its terms, except as such enforceability may be limited by bankruptcy, insolvency, reorganization, liquidation, moratorium or other similar laws of general application and equitable principles relating
to or affecting creditors’ rights. 
 4.8    Borrower hereby ratifies and confirms its respective obligations
and indebtedness under the Loan Agreement and the other Loan Documents, as amended hereby, and hereby represents and warrants that as of the date hereof it neither has nor claims any offsets or defenses to the Obligations, and has no other claims or
causes of action against any of the Lenders or the Agent in connection with, the Loan Agreement or any of the other Loan Documents (as amended hereby). 

5.    Updated Perfection Certificate. In connection with the Second Amendment Effective Date, Borrower has
provided to Agent and the Lenders an updated Perfection Certificate (the “Updated Perfection Certificate”). Borrower hereby ratifies, confirms and reaffirms, all and singular, the terms and disclosures contained in the Updated
Perfection Certificate, and acknowledges, confirms and agrees that the disclosures and information Borrower provided in such Updated Perfection Certificate have not changed, as of the date hereof. From and after the Second Amendment Effective Date,
all references to the “Perfection Certificate” shall be deemed to be a reference to the Updated Perfection Certificate. 

  
 20 

 6.    Integration. This Amendment and the Loan Documents
represent the entire agreement about this subject matter and supersede prior negotiations or agreements. All prior agreements, understandings, representations, warranties, and negotiations between the parties about the subject matter of this
Amendment and the Loan Documents merge into this Amendment and the Loan Documents. 
 7.    Counterparts.
This Amendment may be executed in any number of counterparts and all of such counterparts taken together shall be deemed to constitute one and the same instrument. 

8.    Conditions Precedent to Effectiveness. This Amendment shall be deemed effective upon: 

8.1    the due execution and delivery to Agent of this Amendment by each party hereto; 

8.2    evidence satisfactory to Agent that the insurance policies and endorsements required by the Loan Agreement
are in full force and effect, together with appropriate evidence showing lender loss payable and/or additional insured clauses or endorsements in favor of Agent, for the ratable benefit of the Lenders; 

8.3    Borrower’s payment to Agent, for the ratable benefit of the Lenders, of (i) a fully earned, non-refundable Term Loan 2017 commitment fee equal to One Hundred Fifty Thousand Dollars ($150,000.00); and (ii) a fully earned, non-refundable Revolving Line commitment
fee equal to Two Hundred Fifty Thousand Dollars ($250,000.00); 
 8.4    Borrower’s payment of Agent’s
and each Lender’s legal fees and expenses incurred in connection with this Amendment and the existing Loan Documents; 

8.5    certified copies, dated as of a recent date, of financing statement searches, as Agent may request,
accompanied by written evidence (including any UCC termination statements) that the Liens indicated in any such financing statements either constitute Permitted Liens or have been or, in connection herewith, will be terminated or released; 

8.6    Agent shall have received copies, certified by a duly authorized officer of each Borrower, to be true and
complete as of the date hereof, of each of (i) the governing documents of each Borrower, as in effect on the date hereof (but only to the extent modified since last delivered to the Agent), (ii) the resolutions of each Borrower authorizing
the execution and delivery of this Amendment, the other documents executed in connection herewith and each Borrower’s performance of all of the transactions contemplated hereby (but only to the extent required since last delivered to Agent),
and (iii) an incumbency certificate giving the name and bearing a specimen signature of each individual who shall be so authorized on behalf of each Borrower (but only to the extent any signatories have changed since such incumbency certificate
was last delivered to Agent); 
 8.7    an opinion of Borrower’s counsel in form and covering such matters
regarding Avalara as are acceptable to Lenders in their discretion; 

  
 21 

 8.8    an updated Transaction Report (including Borrowing Base), as in
effect immediately after giving effect to this Amendment; 
 8.9    the duly executed Updated Perfection
Certificate; and 
 8.10    such other documents as Bank may reasonably request. 

[Signature page follows.] 

  
 22 

 IN WITNESS WHEREOF, the parties hereto have
caused this Amendment to be duly executed and delivered as of the date first written above. 
 BORROWER: 

 

			
	AVALARA, INC.
		
	By	 	/s/ Alesia Pinney
	Name: Alesia Pinney
	Title: Executive Vice President, General Counsel and Secretary

 

					
	AVAFUEL, LLC
	
	By: Avalara, Inc., its sole member and manager
			
		 	By	 	/s/ Alesia Pinney
		 	Name: Alesia Pinney
		 	Title: Executive Vice President, General Counsel and Secretary

			
	HOTSPOT TAX, INC.
		
	By	 	/s/ Alesia Pinney
	Name: Alesia Pinney
	Title: President and Secretary

 
 

 

			
	BILLSOFT, INC.
		
	By	 	/s/ Alesia Pinney
	Name: Alesia Pinney
	Title: President and Secretary

			
	SOFTWARE WIZARDS AND GURUS, INC.
		
	By	 	/s/ Alesia Pinney
	Name: Alesia Pinney
	Title: President and Secretary

 
 

  

			
	AGENT:
	
	SILICON VALLEY BANK
		
	By	 	/s/ Jayson Davis
	Name: Jayson Davis
	Title: Director

 LENDERS: 

 

			
	SILICON VALLEY BANK
		
	By	 	/s/ Jayson Davis
	Name: Jayson Davis
	Title: Director

			
	ALLY BANK
		
	By	 	/s/ Brian Baranaskas
	Name: Brian Baranaskas
	Title: Authorized Signatory

 
 

  
 1 

 EXHIBIT D 

COMPLIANCE CERTIFICATE 
  

							
	TO:	  	SILICON VALLEY BANK	  	Date:	 	 
	FROM: AVALARA, INC.	  		 	

 The undersigned authorized officer of Avalara, Inc., for itself and on behalf of each other “Borrower”
(collectively, the “Borrower”), certifies that under the terms and conditions of the Loan and Security Agreement between Borrower, Agent and the Lenders (as amended, the “Loan Agreement”): 

(1) Borrower is in complete compliance for the period ending _______________ with all required covenants except as noted below; (2) there are no
Events of Default; (3) all representations and warranties in the Agreement are true and correct in all material respects on this date except as noted below; provided, however, that such materiality qualifier shall not be
applicable to any representations and warranties that already are qualified or modified by materiality in the text thereof; and provided, further that those representations and warranties expressly referring to a specific date shall be
true, accurate and complete in all material respects as of such date; (4) Borrower, and each of its Subsidiaries, has timely filed all required tax returns and reports, and Borrower has timely paid all foreign, federal, state and local taxes,
assessments, deposits and contributions owed by Borrower except as otherwise permitted pursuant to the terms of Section 5.9 of the Loan Agreement; and (5) no Liens have been levied or claims made against Borrower or any of its Subsidiaries
relating to unpaid employee payroll or benefits of which Borrower has not previously provided written notification to Agent and Lenders. 
 Attached are the
required documents supporting the certification. The undersigned certifies that these are prepared in accordance with GAAP consistently applied from one period to the next except as explained in an accompanying letter or footnotes. The undersigned
acknowledges that no borrowings may be requested at any time or date of determination that Borrower is not in compliance with any of the terms of the Agreement, and that compliance is determined not just at the date this certificate is delivered.
Capitalized terms used but not otherwise defined herein shall have the meanings given them in the Agreement. 
 Please indicate compliance status by
circling Yes/No under “Complies” column. 
  

					
	 Reporting
Covenant
	  	 Required
	  	 Complies

	Monthly financial statements with Compliance Certificate	  	Monthly within 30 days	  	Yes    No
	Lender’s Meeting or written MD&A	  	Quarterly within 60 days	  	Yes    No
	Annual financial statement (CPA Audited)	  	FYE within 180 days	  	Yes    No
	10-Q, 10-K and 8-K	  	Within 5 Business Days after filing with SEC	  	Yes    No
	A/R & A/P Agings, Deferred Revenue report	  	Monthly within 30 days	  	Yes    No
	Transaction Reports	  	Monthly within 30 days and with each Advance request	  	Yes    No
	Annual Financial Projections	  	FYE within 45 days	  	Yes    No
	409A Valuation Report	  	Within 30 days of receipt	  	Yes    No

 The following Intellectual Property was registered (or a registration application submitted) after the Effective Date (if no
registrations, state “None”) 
   

 
   

 
   

 

  
 2 

													
	 Financial
Covenants
	  	Required	 	  	Actual	 	  	Complies	 
	 Maintain on a Monthly Basis:
	  				  				  			
	 Minimum Trailing 3-Month Net Billings*
	  				  				  			
		  	$	                    	 	  	$	                      	 	  	 	Yes    No	 
		  	  
	  
	 	  	  
	  
	 	  			
	 Minimum Liquidity
	  	$	15,000,000.00	 	  	$	                      	 	  	 	Yes    No	 
		  				  	  
	  
	 	  			

  

	*	80% of plan - see Section 6.7(a) of the Loan Agreement. 

 The following are the exceptions
with respect to the certification above: (If no exceptions exist, state “No exceptions to note.”) 
  

      
  

      
  

      
  

 

			
	AVALARA, INC., for itself and on behalf of each other “Borrower”
		
	By:	 	 

			
	Name:	 	 

			
	Title:	 	 

 

			
	BANK USE ONLY
		
	Received by:	 	 
		 	AUTHORIZED SIGNER

			
	Date:	 	 

			
		
	Verified:	 	 
		 	AUTHORIZED SIGNER

			
	Date:	 	 
	
	Compliance Status: Yes    No

 
 

  
 3 

 SCHEDULE 1 

LENDERS AND COMMITMENTS 
  

																					
	 Lender
	  	 Term Loan 2017

Commitment
	 	  	 Term Loan 2017

Commitment

Percentage
	 	 	 Revolving Line

Commitment
	 	  	 Revolving Line

Commitment

Percentage
	 	 	 Commitment

Percentage
	 
	 Silicon Valley Bank
	  	$	15,000,000.00	 	  	 	50.00	% 	 	$	25,000,000.00	 	  	 	50.00	% 	 	 	50.00	% 
	 Ally Bank
	  	$	15,000,000.00	 	  	 	50.00	% 	 	$	25,000,000.00	 	  	 	50.00	% 	 	 	50.00	% 
		  	  
	  
	 	  	  
	  
	 	 	  
	  
	 	  	  
	  
	 	 	  
	  
	 
	 TOTAL
	  	$	30,000,000.00	 	  	 	100.00	% 	 	$	50,000,000.00	 	  	 	100.00	% 	 	 	100.00	% 
		  	  
	  
	 	  	  
	  
	 	 	  
	  
	 	  	  
	  
	 	 	  
	  
	 

 L/C COMMITMENT 

(As a Sublimit of the Revolving Line) 
  

									
	 Lender
	  	
L/C Commitment
	 	  	
L/C Percentage
	 
	 Silicon Valley Bank
	  	$	5,000,000.00	 	  	 	50.00	% 
	 Ally Bank
	  	$	5,000,000.00	 	  	 	50.00	% 
		  	  
	  
	 	  	  
	  
	 
	 TOTAL
	  	$	10,000,000.00	 	  	 	100.00	% 
		  	  
	  
	 	  	  
	  
	 

  
 4 

 Exhibit A 

Existing Letters of Credit 
  

									
	 Beneficiary
	  	Amount	 	  	Date of Issuance	 
	 Second & Spring Property Owner LLC
	  	$	242,800.00	 	  	 	September 5, 2014	 

  
 5LEASE AGREEMENT

 Exhibit 10.16 

LEASE AGREEMENT 
 BETWEEN

 W2007 SEATTLE OFFICE SECOND AND SPRING BUILDING REALTY, LLC, 

A DELAWARE LIMITED LIABILITY COMPANY, 

AS LANDLORD, 
 AND

 AVALARA, INC., 

A WASHINGTON CORPORATION, 

AS TENANT, 
 DATED
AUGUST 14, 2014 
 The submission of this Lease by Landlord, its broker, agent or representative, for examination or execution by Tenant, does
not constitute an option or offer to lease the Premises upon the terms and conditions contained herein or a reservation of the Premises in favor of Tenant; it being intended hereby that notwithstanding the preparation of space plans and/or tenant
improvements plans, etc., and/or the expenditure by Tenant of time and/or money while engaged in negotiations in anticipation of it becoming the Tenant under this Lease, or Tenant’s forbearing pursuit of other leasing opportunities, or even
Tenant’s execution of this Lease and submission of same to Landlord, that this Lease shall become effective and binding upon Landlord only upon the execution hereof by Landlord and its delivery of a fully executed counterpart hereof to Tenant.
No exception to the foregoing disclaimer is intended, nor shall any be implied, from expressions of Landlord’s willingness to negotiate in good faith with respect to any of the terms and conditions contained herein. 

Second & Spring 
 Avalara,
Inc. 

  

					
		  		  	

 BASIC LEASE INFORMATION 

 

			
	Lease Date:	  	August 14, 2014
		
	Landlord:	  	W2007 SEATTLE OFFICE SECOND AND SPRING BUILDING REALTY, LLC, a Delaware limited liability company
		
	Tenant:	  	AVALARA, INC., a Washington corporation
		
	Building:	  	The office building commonly known as Second & Spring, and whose street address is 1100 2nd Avenue, Seattle, Washington, and which contains a total of approximately
133,490 rentable square feet of space.
		
	Premises:	  	 The Premises shall contain a total of approximately 36,420 rentable square feet of space, comprised of the following:

 
 The “Initial Premises” contains
approximately 24,546 rentable square feet of space and comprises the entire rentable area of the third (3rd) floor of the Building, and is commonly known as Suite 300.

 
 The “Must-Take Premises” contains
approximately 11,874 rentable square feet of space located on the first (1st) floor of the Building, and is commonly known as Suite 105.

 
 The Premises are outlined on the floor plan(s) attached to the Lease as Exhibit
A.
  
 Landlord and Tenant stipulate that the number of rentable square feet in the
Premises set forth above is conclusive and shall be binding upon them, and that Landlord shall have the right from time to time to remeasure the Building based on Landlord’s then-current measurement standard.

		
	Land/Project:	  	The land on which the Building is located (the “Land”) is described on Exhibit B attached hereto. The term “Project” shall collectively refer to the Building, the Land and the driveways, the
Parking Facility (as defined in Exhibit G attached hereto), and similar improvements and easements associated with the foregoing or the operation thereof.
		
	Term:	  	Ninety (90) full calendar months, plus, if the Commencement Date (as defined below) occurs on other than the first day of a month, any partial month from the Commencement Date to the end of the month in

  

					
		  	(i)	  	 Second & Spring

Avalara, Inc.

			
		  	 which the Commencement Date falls, starting on the Commencement Date and ending at 5:00 p.m. local time on the last day of the ninetieth (90th) full calendar month following the Commencement Date (the “Expiration Date”), subject to adjustment and earlier termination as provided in the Lease, and extension of the Term as
set forth in, and in accordance with, Exhibit I attached hereto.
  

	Commencement Date:	  	 January 1, 2015, which Commencement Date is subject to extension due to Commencement Date Delays (as that term is defined in
Section 5.1 of the Tenant Work Letter).
  

		  	 Notwithstanding anything herein, the “Commencement Date” shall not occur until all of the following have occurred:
(a) Landlord has substantially completed Landlord’s Work; (b) Landlord has delivered actual possession and control of the Premises to Tenant; and (c) Landlord has delivered a fully executed copy of this Lease to Tenant.

 

		  	 In addition, the “Must-Take Commencement Date” shall be the date that is ninety (90) days following the date on which
Landlord delivers the Must-Take Premises to Tenant with the Landlord Work (as that term is defined in the Tenant Work Letter) in the Must-Take Premises substantially complete.

 

	Basic Rent:	  	Basic Rent shall be the following amounts for the following periods of time:

  

													
	 Period During the Term
	  	Annual Basic
Rent	 	 	Monthly
Installment of
Basic Rent	 	 	Annual Rental Rate
Per Rentable
Square Foot	 
	 January 1, 2015 through the day
	  				 				 			
	 immediately prior to the Must-Take Commencement Date *
	  	$	810,018.00	** 	 	$	67,501.50	** 	 	$	33.00	 
	 Must-Take Commencement Date through December 31, 2015
	  	$	1,201,860.00	** 	 	$	100,155.00	** 	 	$	33.00	 
	 January 1, 2016 through December 31, 2016
	  	$	1,238,280.00	 	 	$	103,190.00	 	 	$	34.00	 
	 January 1, 2017 through December 31, 2017
	  	$	1,274,700.00	 	 	$	106,225.00	 	 	$	35.00	 
	 January 1, 2018 through December 31, 2018
	  	$	1,311,120.00	 	 	$	109,260.00	 	 	$	36.00	 

  

					
		  	(ii)	  	 Second & Spring

Avalara, Inc.

													
	 January 1, 2019 through December 31, 2019
	  	$	1,347,540.00	 	  	$	112,295.00	 	  	$	37.00	 
	 January 1, 2020 through December 31, 2020
	  	$	1,383,960.00	 	  	$	115,330.00	 	  	$	38.00	 
	 January 1, 2021 through December 31, 2021
	  	$	1,420,380.00	 	  	$	118,365.00	 	  	$	39.00	 
	 January 1, 2022 through June 30, 2022
	  	$	1,456,800.00	 	  	$	121,400.00	 	  	$	40.00	 

  

	*	The Basic Rent for this period is based on the 24,546 rentable square feet of the Initial Premises only. On and following the Must-Take Commencement Date, the Basic Rent set forth in the chart above is based on the
36,420 rentable square feet of the entire Premises. In the event that the Must-Take Commencement Date does not occur until after January 1, 2016, then the foregoing schedule of Basic Rent shall be modified to reflect the same, which
modification shall be confirmed in writing by Landlord to Tenant. 

	**	The Basic Rent with respect to the Initial Premises is subject to abatement from January 1, 2015 through June 30, 2015, and the Basic Rent with respect to the Must-Take Premises is subject to abatement for the
first five (5) full months of the Term following the Must-Take Commencement Date, all subject to the terms and conditions set forth in Exhibit H attached hereto. Such abatement of Basic Rent shall not apply with respect to the Additional
Monthly Basic Rent, as described below. 

 In addition, the monthly Basic Rent amounts identified herein shall be subject to increase by the
amount of the Additional Monthly Basic Rent in the event that Tenant utilizes any portion of the Additional Improvement Allowance, as more particularly set forth in Section 2.1.2 of the Tenant Work Letter attached hereto as
Exhibit B. 
  

			
	Security Deposit:	  	None.
		
	Letter of Credit:	  	$242,800.00.
		
	Rent:	  	Basic Rent, Additional Rent (as defined below), and all other sums that Tenant may owe to Landlord or otherwise be required to pay under the Lease.
		
	Permitted Use:	  	General office use only.
		
	Tenant’s Proportionate Share:	  	Initially, 18.3879%, which is the percentage obtained by dividing (a) the number of rentable square feet in the Initial Premises as stated above by (b) 133,490.
		
		  	Effective as of the Must-Take Commencement Date, Tenant’s Proportionate Share shall equal 27.2829%, which is the percentage obtained by dividing (i) the number of rentable square feet in the

  

					
		  	(iii)	  	 Second & Spring

Avalara, Inc.

			
		
		  	Premises as stated above by (ii) 133,490.
		
	Base Year:	  	The calendar year 2015.
		
	Parking Pass Ratio:	  	One (1) unreserved parking pass for every 2,000 rentable square feet of the Premises then leased by Tenant.
		
	Initial Liability	  	
	Insurance Amount:	  	Three Million Dollars ($3,000,000.00)
		
	Tenant’s Address:	  	Prior to and after the Commencement Date:
		
		  	 Avalara, Inc.
 100 Ravine Lane NE, Suite 200

Bainbridge Island, Washington 98110
 Attention: Real
Estate

		
		  	with a copy of any notice of default to:
		
		  	 Avalara, Inc.
 100 Ravine Lane NE, Suite 200

Bainbridge Island, Washington 98110
 Attention: Real Estate with a
copy of any default notice to the
 Attention: Legal Department

		
	Landlord’s Address:	  	 For all Notices:
  

Talon Portfolio Services, LLC
 1800 Ninth Avenue, Suite 1600

Seattle, Washington 98101
 Attention: Lease
Administration

  

					
		  	(iv)	  	 Second & Spring

Avalara, Inc.

			
		  	With a copy to:
		
		  	 W2007 Seattle Office Second and Spring Building Realty, LLC

c/o Walton Street Capital, L.L.C.
 900 North Michigan Avenue,
Suite 1900
 Chicago, Illinois 60611
 Attention: Mr. Jim
Odenbach
                  Mr. Douglas Welker

                 Angela Lang, Esq.

		
		  	With a copy to:
		
		  	 Pircher, Nichols & Meeks
 1925 Century
Park East, Suite 1700
 Los Angeles, California 90067-2512

Attention: Real Estate Notices (SCS)

		
	Landlord’s Address:	  	For Payment of Rent:
		
		  	 W2007 Seattle Office Second and Spring Building Realty, LLC

P.O. Box 730722
 Dallas, Texas 75373-0722

  

					
		  	(v)	  	 Second & Spring

Avalara, Inc.

 TABLE OF CONTENTS 

 

							
	 	 	 	  	Page	 
	 1.
	 	Definitions and Basic Provisions	  	 	1	 
			
	 2.
	 	Lease Grant	  	 	1	 
			
		 	(a) Generally	  	 	1	 
		 	(b) Must-Take Premises	  	 	2	 
			
	 3.
	 	Lease Term	  	 	2	 
			
		 	(a) In General	  	 	2	 
		 	(b) Termination Right Based on Landlord’s Failure to Timely Deliver the Must-Take Premises	  	 	2	 
		 	(c) Beneficial Occupancy	  	 	3	 
			
	 4.
	 	Rent	  	 	3	 
			
		 	(a) Payment	  	 	3	 
		 	(b) Operating Costs; Taxes	  	 	3	 
		 	(c) Cost Pools	  	 	11	 
			
	 5.
	 	Delinquent Payment; Handling Charges	  	 	11	 
			
	 6.
	 	Letter of Credit	  	 	11	 
			
		 	(a) General Provisions	  	 	11	 
		 	(b) Drawings under Letter of Credit	  	 	12	 
		 	(c) Use of Proceeds by Landlord	  	 	12	 
		 	(d) Additional Covenants of Tenant	  	 	13	 
		 	(e) Nature of Letter of Credit	  	 	13	 
		 	(f) Transfer of Letter of Credit	  	 	14	 
			
	 7.
	 	Landlord’s Obligations	  	 	14	 
			
		 	(a) Services	  	 	14	 
		 	(b) Excess Utility Use	  	 	15	 
		 	(c) Landlord’s Repairs	  	 	15	 
		 	(d) Restoration of Services; Abatement	  	 	16	 
		 	(e) General Abatement	  	 	16	 
			
	 8.
	 	Improvements; Alterations; Repairs; Maintenance	  	 	17	 
			
		 	(a) Improvements; Alterations	  	 	17	 
		 	(b) Repairs; Maintenance	  	 	18	 
		 	(c) Performance of Work	  	 	19	 
		 	(d) Mechanic’s Liens	  	 	19	 
		 	(e) Tenant’s Security System	  	 	20	 
			
	 9.
	 	Use	  	 	20	 

  

					
		  	(vi)	  	 Second & Spring

Avalara, Inc.

							
	 10.
	 	Assignment and Subletting	  	 	21	 
			
		 	(a) Transfers	  	 	21	 
		 	(b) Consent Standards	  	 	21	 
		 	(c) Request for Consent	  	 	21	 
		 	(d) Conditions to Consent	  	 	22	 
		 	(e) Attornment by Subtenants	  	 	22	 
		 	(f) Cancellation	  	 	23	 
		 	(g) Additional Compensation	  	 	23	 
		 	(h) Permitted Transfers	  	 	23	 
			
	 11.
	 	Insurance; Waivers; Subrogation; Indemnity	  	 	24	 
			
		 	(a) Tenant’s Insurance	  	 	24	 
		 	(b) Landlord’s Insurance	  	 	26	 
		 	(c) No Subrogation; Waiver of Property Claims	  	 	26	 
		 	(d) Waiver	  	 	26	 
		 	(e) Indemnities	  	 	27	 
			
	 12.
	 	Subordination; Attornment; Notice to Landlord’s Mortgagee	  	 	28	 
			
		 	(a) Subordination	  	 	28	 
		 	(b) Attornment	  	 	28	 
		 	(c) Notice to Landlord’s Mortgagee	  	 	28	 
		 	(d) Landlord’s Mortgagee’s Protection Provisions	  	 	29	 
			
	 13.
	 	Rules and Regulations	  	 	29	 
			
	 14.
	 	Condemnation	  	 	30	 
			
		 	(a) Total Taking	  	 	30	 
		 	(b) Partial Taking – Tenant’s Rights	  	 	30	 
		 	(c) Partial Taking – Landlord’s Rights	  	 	30	 
		 	(d) Temporary Taking	  	 	30	 
		 	(e) Award	  	 	30	 
			
	 15.
	 	Fire or Other Casualty	  	 	30	 
			
		 	(a) Repair Estimate	  	 	30	 
		 	(b) Tenant’s Rights	  	 	31	 
		 	(c) Landlord’s Rights	  	 	31	 
		 	(d) Repair Obligation	  	 	31	 
		 	(e) Abatement of Rent	  	 	31	 
			
	 16.
	 	Personal Property Taxes	  	 	32	 
			
	 17.
	 	Events of Default	  	 	32	 
			
		 	(a) Payment Default	  	 	32	 
		 	(b) Abandonment	  	 	32	 
		 	(c) Subordination	  	 	32	 
		 	(d) Estoppel	  	 	32	 
		 	(e) Insurance	  	 	32	 

  

					
		  	(vii)	  	 Second & Spring

Avalara, Inc.

							
		 	(f) Mechanic’s Liens	  	 	32	 
		 	(g) Misrepresentation	  	 	32	 
		 	(h) OFAC/FCPA Representation	  	 	33	 
		 	(i) Other Defaults	  	 	33	 
		 	(j) Insolvency	  	 	33	 
			
	 18.
	 	Remedies	  	 	33	 
			
		 	(a) Termination of Lease	  	 	33	 
		 	(b) Termination of Possession	  	 	33	 
		 	(c) Perform Acts on Behalf of Tenant	  	 	34	 
			
	 19.
	 	Payment by Tenant; Non-Waiver; Cumulative Remedies	  	 	34	 
			
		 	(a) Payment by Tenant	  	 	34	 
		 	(b) No Waiver	  	 	35	 
		 	(c) Cumulative Remedies	  	 	35	 
			
	 20.
	 	Surrender of Premises	  	 	35	 
			
	 21.
	 	Holding Over	  	 	35	 
			
	 22.
	 	Certain Rights Reserved by Landlord	  	 	36	 
			
		 	(a) Building Operations	  	 	36	 
		 	(b) Security	  	 	36	 
		 	(c) Current and Prospective Insurers, Purchasers, Investors and Mortgagees	  	 	36	 
		 	(d) Prospective Tenants	  	 	36	 
			
	 23.
	 	Intentionally Omitted	  	 	37	 
			
	 24.
	 	Interior Signage	  	 	37	 
			
	 25.
	 	Telecommunications and Communications	  	 	37	 
			
		 	(a) Tenant’s Telecommunications Providers	  	 	37	 
		 	(b) Cable Work	  	 	38	 
		 	(c) Landlord’s Reserved Rights	  	 	38	 
		 	(d) Removal Obligations	  	 	39	 
			
	 26.
	 	Miscellaneous	  	 	39	 
			
		 	(a) Landlord Transfer	  	 	39	 
		 	(b) Landlord’s Liability	  	 	39	 
		 	(c) Force Majeure	  	 	40	 
		 	(d) Brokerage	  	 	40	 
		 	(e) Estoppel Certificates	  	 	41	 
		 	(f) Notices	  	 	41	 
		 	(g) Separability	  	 	41	 
		 	(h) Amendments; Binding Effect; No Electronic Records	  	 	41	 
		 	(i) Quiet Enjoyment	  	 	42	 
		 	(j) No Merger	  	 	42	 
		 	(k) Entire Agreement	  	 	42	 

  

					
		  	(viii)	  	 Second & Spring

Avalara, Inc.

							
		 	(l) Waiver of Jury Trial	  	 	42	 
		 	(m) Governing Law	  	 	42	 
		 	(n) Recording	  	 	42	 
		 	(o) Water or Mold Notification	  	 	42	 
		 	(p) Joint and Several Liability	  	 	43	 
		 	(q) Financial Reports	  	 	43	 
		 	(r) Attorneys’ Fees	  	 	43	 
		 	(s) Confidentiality	  	 	43	 
		 	(t) Authority	  	 	44	 
		 	(u) Hazardous Materials	  	 	44	 
		 	(v) List of Exhibits	  	 	45	 
		 	(w) OFAC/FCPA Representation	  	 	45	 
		 	(x) Survival of Obligations	  	 	46	 
		 	(y) Intentionally Omitted	  	 	46	 
		 	(z) Landlord Default	  	 	46	 
		 	(aa) Business Days	  	 	46	 
		 	(bb) Terms; Captions	  	 	46	 
		 	(cc) Bicycle Parking	  	 	47	 
		 	(dd) Removal of Property	  	 	47	 

  

					
		  	(ix)	  	 Second & Spring

Avalara, Inc.

 INDEX 
  

					
	 Abated Base Rent Income Tax Amount
	  	 	Exhibit D	 
	 Abated Base Rent Payment Amount
	  	 	Exhibit D	 
	 Abated Rent
	  	 	Exhibit H	 
	 Acceptable Change
	  	 	18	 
	 Acceptable Changes
	  	 	18	 
	 Additional Allowance
	  	 	2	 
	 Additional Insureds
	  	 	24	 
	 Additional Monthly Basic Rent
	  	 	2	 
	 Additional Rent
	  	 	4	 
	 Advocate Arbitrators
	  	 	2, 4	 
	 Affiliate
	  	 	1	 
	 Alterations
	  	 	17	 
	 Anticipated Delivery Date
	  	 	Exhibit K	 
	 Approved Working Drawings
	  	 	Exhibit D	 
	 Architect
	  	 	Exhibit D	 
	 Award
	  	 	2, 4	 
	 Base, shell and Core
	  	 	Exhibit D	 
	 Basic Lease Information
	  	 	1	 
	 blocked person
	  	 	45	 
	 Budget Estimate
	  	 	Exhibit D	 
	 Building’s Structure
	  	 	1	 
	 Building’s Systems
	  	 	1	 
	 Business Days
	  	 	46	 
	 Cable Problems
	  	 	39	 
	 Cable Work
	  	 	38	 
	 Cable(s)
	  	 	38	 
	 Casualty
	  	 	30	 
	 Claims
	  	 	27	 
	 Code
	  	 	Exhibit D	 
	 Common Areas
	  	 	1	 
	 Comparison Buildings
	  	 	1	 
	 Comparison Leases
	  	 	Exhibit I, Exhibit I	 
	 Construction Drawings
	  	 	Exhibit D	 
	 Contract
	  	 	Exhibit D	 
	 Contract Price
	  	 	Exhibit D	 
	 Contractor
	  	 	Exhibit D	 
	 Coordination Fee
	  	 	Exhibit D	 
	 Cost Pools
	  	 	11	 
	 Damage Notice
	  	 	31	 
	 Default Rate
	  	 	11	 
	 Delivery Termination Date
	  	 	2	 
	 Disabilities Acts
	  	 	20	 
	 Economic Terms
	  	 	Exhibit K	 
	 Election Date
	  	 	Exhibit K	 
	 Engineers
	  	 	Exhibit D	 

  

					
		  	(x)	  	 Second & Spring

Avalara, Inc.

					
	 Event of Default
	  	 	32	 
	 Exercise Notice
	  	 	Exhibit I	 
	 Expiration Date
	  	 	i	 
	 Extension Option
	  	 	Exhibit I	 
	 Final LC Expiration Date
	  	 	11	 
	 Final Payment Application
	  	 	Exhibit D	 
	 Final Space Plan
	  	 	Exhibit D	 
	 Final Working Drawings
	  	 	Exhibit D	 
	 First Offer Notice
	  	 	Exhibit K	 
	 First Offer Period
	  	 	Exhibit L	 
	 First Offer Space
	  	 	Exhibit L	 
	 GAAP
	  	 	24	 
	 Hazardous Materials
	  	 	44	 
	 Holidays
	  	 	15	 
	 HVAC
	  	 	14	 
	 include
	  	 	1	 
	 includes
	  	 	1	 
	 including
	  	 	1	 
	 Land
	  	 	i	 
	 Landlord
	  	 	1	 
	 Landlord Parties
	  	 	1	 
	 Landlord Party
	  	 	1	 
	 Landlord’s Final Retention
	  	 	Exhibit D	 
	 Landlord’s Mortgagee
	  	 	28	 
	 Landlord’s Work
	  	 	Exhibit D	 
	 Law
	  	 	1	 
	 Laws
	  	 	1	 
	 LC Proceeds Account
	  	 	12	 
	 Lease
	  	 	1	 
	 Letter of Credit
	  	 	11	 
	 Letter of Credit Amount
	  	 	11	 
	 Minimum Financial Requirement
	  	 	12	 
	 Money Rates
	  	 	33	 
	 Mortgage
	  	 	28	 
	 Neutral Arbitrator
	  	 	2, 4	 
	 O&M Information
	  	 	Exhibit D	 
	 Objection Notice
	  	 	10	 
	 Objection Period
	  	 	10	 
	 Operating Costs
	  	 	4	 
	 Operating Costs and Tax Statement
	  	 	8	 
	 Operating Costs Excess
	  	 	3	 
	 Option Term
	  	 	Exhibit I	 
	 Original Tenant
	  	 	1	 
	 Outside Agreement Date
	  	 	2, 4	 
	 Over-Allowance Amount
	  	 	Exhibit D	 
	 Parking Facility
	  	 	Exhibit G	 

  

					
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	 Payment Application
	  	 	4	 
	 Permitted Transfer
	  	 	23	 
	 Permitted Transferee
	  	 	23	 
	 Prime Rate
	  	 	33	 
	 Prohibited Person
	  	 	45	 
	 Project
	  	 	i	 
	 Property Management Office
	  	 	Exhibit C	 
	 Punch-list Items
	  	 	Exhibit E	 
	 Renewal or Replacement LC
	  	 	12	 
	 Rent Credit Election Notice
	  	 	Exhibit D	 
	 Rent Credit Option
	  	 	Exhibit D	 
	 Repair Period
	  	 	31	 
	 Review
	  	 	9	 
	 Review Notice
	  	 	9	 
	 Right of First Offer
	  	 	Exhibit L	 
	 SDNs
	  	 	45	 
	 Security Deposit Laws
	  	 	13	 
	 Specifications
	  	 	Exhibit D	 
	 Standard Improvement Package
	  	 	Exhibit D	 
	 Superior Rights
	  	 	Exhibit L	 
	 Taking
	  	 	30	 
	 Tangible Net Worth
	  	 	24	 
	 Tax Excess
	  	 	7	 
	 Taxes
	  	 	7	 
	 Telecommunications Services
	  	 	37	 
	 Tenant
	  	 	1	 
	 Tenant Improvement Allowance
	  	 	Exhibit D	 
	 Tenant Improvement Allowance Items
	  	 	Exhibit D	 
	 Tenant Improvements
	  	 	Exhibit D	 
	 Tenant Parking Passes
	  	 	Exhibit G	 
	 Tenant Parties
	  	 	1	 
	 Tenant Party
	  	 	1	 
	 Tenant Work Letter
	  	 	Exhibit D	 
	 Tenant’s Accountant
	  	 	9	 
	 Tenant’s Agents
	  	 	Exhibit D	 
	 Tenant’s Election Notice
	  	 	Exhibit K	 
	 Tenant’s Off-Premises Equipment
	  	 	1	 
	 Tenant’s Security System
	  	 	20	 
	 Termination Date
	  	 	1	 
	 Termination Notice
	  	 	1	 
	 Termination Option
	  	 	1	 
	 The Law of Real Estate Agency
	  	 	40	 
	 Third Party Offer
	  	 	Exhibit K, Exhibit K	 
	 Transfer
	  	 	21	 

  

					
		  	(xii)	  	 Second & Spring

Avalara, Inc.

 LEASE 

This Lease Agreement (this “Lease”) is entered into as of August 14, 2014 between W2007 SEATTLE OFFICE SECOND AND SPRING
BUILDING REALTY, LLC, a Delaware limited liability company (“Landlord”), and AVALARA, INC., a Washington corporation (“Tenant”). 

1. Definitions and Basic Provisions. The definitions and basic provisions set forth in the Basic Lease Information
(the “Basic Lease Information”) are incorporated herein by reference for all purposes. Additionally, the following terms shall have the following meanings when used in this Lease: “Affiliate” means any person or
entity which, directly or indirectly, through one or more intermediaries, controls, is controlled by, or is under common control with the party in question; “Building’s Structure” means the Building’s exterior walls, roof,
elevator shafts, footings, foundations, structural portions of load-bearing walls, structural floors and subfloors, and structural columns and beams; “Building’s Systems” means the Building’s HVAC (as defined below),
security, life-safety, plumbing, electrical, and mechanical systems; “Comparison Buildings” means first class office buildings in the Seattle, Washington central business district area; “include”,
“includes” or “including” shall be deemed, as the context indicates, to be followed by the words “but (is/are) not limited to” or “without limitation”; “Laws” means all federal,
state, and local laws, codes, ordinances, rules, requirements and regulations, all court orders, governmental directives, and governmental orders and all interpretations of the foregoing, and all restrictive covenants and conditions affecting the
Project, and “Law” means any of the foregoing; “Tenant’s Off-Premises Equipment” means any of Tenant’s equipment or other property that may be located on the grounds of the Project (other than inside the
Premises); and “Tenant Parties” means all of the following persons: Tenant; any assignees claiming by, through, or under Tenant; any subtenants claiming by, through, or under Tenant; and any of their respective agents, contractors,
employees, licensees, guests and invitees, and “Tenant Party” means any of the foregoing. “Original Tenant” means the Tenant originally named in this Lease. “Landlord Parties” means all of the
following persons: Landlord, Landlord’s Mortgagees (as defined below), and any of their respective partners, members, directors, officers, trustees, shareholders, successors and assigns, agents, employees, independent contractors, licensees,
guests and invitees, and “Landlord Party” means any of the foregoing. 
 2. Lease Grant. 

(a) Generally. Subject to the terms of this Lease, Landlord leases to Tenant, and Tenant leases from Landlord, the
Premises. Tenant shall also have the non-exclusive right to use in common with Landlord and the other tenants of the Project those portions of the Project that are provided by Landlord for use in common with
Landlord and the other tenants of the Project, such as entrances, lobbies, restrooms, ground floor corridors, elevators and elevator foyers, loading and unloading areas, plazas, ramps, drives, stairs, and access ways and service ways (collectively,
the “Common Areas”). The outline of the Premises is set forth in Exhibit A attached hereto. The parties hereto hereby acknowledge that the purpose of Exhibit A is to show the approximate location of the Premises in the Building, only, and
such Exhibit is not meant to constitute an agreement, representation or warranty as to the construction of the Premises, the precise area thereof or the specific location of the Common Areas, or the elements thereof or of the accessways to the
Premises or the Project. 

  

					
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Avalara, Inc.

 (b) Must-Take Premises.
Effective as of Must-Take Commencement Date, Tenant shall accept delivery of the Must-Take Premises from Landlord and the Must-Take Premises shall become part of the Premises for all purposes hereunder, and all references in this Lease to the
“Premises” shall thereafter include the Must-Take Premises. Tenant’s obligation to pay Basic Rent for the Must-Take Premises, and to pay Tenant’s Proportionate Share of any increase in Operating Costs and Taxes (as those terms
are defined in Section 4. below) with respect to the Must-Take Premises, shall commence on the Must-Take Commencement Date. 

3.    Lease Term. 

(a) In General. The terms and conditions and provisions of this Lease shall be effective as of the date of this Lease. The
Commencement Date, Must-Take Commencement Date, Expiration Date and Term of this Lease shall be as set forth in the Basic Lease Information of this Lease. By occupying the Premises or any portion thereof, Tenant shall be deemed to have accepted the
Premises in their condition as of the date of such occupancy, subject to other provisions of this Lease, including the performance of punch-list items that remain to be performed by Landlord, if any. Prior to occupying the Premises, Tenant shall
execute and deliver to Landlord a letter substantially in the form of Exhibit E attached hereto confirming (1) the Commencement Date and the Expiration Date of the initial Term, (2) that Tenant has accepted the Premises, and (3) that
Landlord has performed all of its obligations with respect to the Premises (except for punch-list items specified in such letter); however, the failure of the parties to execute such letter shall not defer the Commencement Date or otherwise
invalidate this Lease. Occupancy of the Premises by Tenant prior to the Commencement Date shall be subject to all of the provisions of this Lease including those requiring the payment of Basic Rent and Additional Rent (each as defined below). 

(b) Termination Right Based on Landlord’s Failure to Timely Deliver the Must-Take Premises.
Notwithstanding the foregoing, if Landlord is unable to tender possession of the Premises and/or Must-Take Premises with the Landlord’s Work to be performed therein substantially complete on or before January 1, 2016 (the
“Delivery Termination Date”), which date shall not be subject to delays for any reason (including force majeure), then Tenant may terminate this Lease by delivering to Landlord notice thereof at any time before the earlier of
(1) fifteen (15) days following the Delivery Termination Date, as such date may be so extended, or (2) the date on which Landlord tenders possession of the Premises and/or Must-Take Premises to Tenant with the Landlord’s Work to be
performed therein substantially complete. Notwithstanding the foregoing to the contrary, the Delivery Termination Date shall be extended day-for-day each day Landlord is
delayed in delivering possession of the Must-Take Premises to Tenant with the Landlord’s Work to be performed therein substantially complete due solely to delays caused by Tenant or Tenant’s Agents (as defined in Exhibit D). The
termination right afforded to Tenant under this Section 3(b) shall be Tenant’s sole recourse for Landlord’s failure to timely tender possession of the Must-Take Premises to Tenant with the Landlord’s Work to be performed therein
substantially complete on or before the Delivery Termination Date, as such date may be so extended. Time is of essence for the delivery of Tenant’s termination notice under this Section 3(b); accordingly, if Tenant fails to timely deliver
such notice, Tenant’s right to terminate this Lease under this Section 3(b) shall expire. 

  

					
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Avalara, Inc.

 (c) Beneficial Occupancy. Tenant shall have the right to occupy the Initial
Premises prior to the Commencement Date, provided that (A) a certificate of occupancy, or a temporary certificate of occupancy (or the equivalent of either) shall have been issued by the appropriate governmental authorities permitting
Tenant’s use and occupancy of the Initial Premises for the Permitted Use, and (B) all of the terms and conditions of the Lease shall apply, other than Tenant’s obligation to pay Basic Rent, and Tenant’s Proportionate Share of the
Operating Costs Excess plus Tenant’s Proportionate Share of the Tax Excess (as defined below), as though the Commencement Date had occurred. 

4.    Rent. 

(a) Payment. Tenant shall timely pay Rent to Landlord, without notice, demand, deduction or setoff (except as otherwise
expressly provided herein), by good and sufficient check drawn on a national banking association delivered to Landlord’s address provided for in the Basic Lease Information, by wire transfer as provided for in the Basic Lease Information, or to
such other address or by wiring instructions provided in a notice delivered by Landlord to Tenant, accompanied by all applicable state and local sales or use taxes. The obligations of Tenant to pay Rent and other sums to Landlord and the obligations
of Landlord under this Lease are independent obligations. Subject to the provisions of Exhibit H attached hereto, Basic Rent, adjusted as herein provided, shall be payable monthly in advance. The monthly installment of Basic Rent for the
first calendar month of the Term for which Basic Rent is due to Landlord hereunder shall be payable within two (2) Business Days following Tenant’s receipt of a fully executed copy of this Lease; thereafter, Basic Rent shall be payable on
the first day of each month beginning on the first day of the second full calendar month of the Term for which Basic Rent is due to Landlord. The monthly Basic Rent for any partial month at the beginning of the Term shall equal the product of 1/365
of the annual Basic Rent in effect during the partial month and the number of days in the partial month and shall be due on the Commencement Date. Payments of Basic Rent for any fractional calendar month at the end of the Term shall be similarly
prorated. Subject to the provisions of Exhibit H attached hereto, Tenant shall pay Additional Rent at the same time and in the same manner as Basic Rent. 

Notwithstanding the foregoing, Tenant shall not be required to pay Basic Rent, Annual Additional Rent or any other charges hereunder until Tenant receives
from Landlord a completed and executed W-9 taxpayer identification form. Landlord acknowledges and agrees that Tenant, at Tenant’s option, shall have the right to pay amounts due under this Lease to
Landlord via electronic funds transfer, and that Landlord shall reasonably cooperate with Tenant, if necessary, to establish that manner of payment by Tenant. 

(b)     Operating Costs; Taxes. 

(1) Tenant shall pay to Landlord Tenant’s Proportionate Share of any increase in Operating Costs (as defined below) for each calendar
year and partial calendar year falling within the Term over the Operating Costs for the Base Year (the “Operating Costs Excess”). Tenant shall not pay any charges for Operating Costs prior to the end of the Base

  

					
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Avalara, Inc.

 
Year. Landlord may make a good faith estimate of Tenant’s Proportionate Share of the Operating Costs Excess to be due by Tenant for any calendar year or part thereof during the Term. During
each calendar year or partial calendar year of the Term (after the Base Year), Tenant shall pay to Landlord, in advance concurrently with each monthly installment of Basic Rent, an amount equal to the estimated Tenant’s Proportionate Share of
the Operating Costs Excess for such calendar year or part thereof divided by the number of months therein. From time to time, Landlord may estimate and re-estimate Tenant’s Proportionate Share of the
Operating Costs Excess to be due by Tenant and deliver a copy of the estimate or re-estimate to Tenant. Thereafter, the monthly installments of Tenant’s Proportionate Share of the Operating Costs Excess
payable by Tenant shall be appropriately adjusted in accordance with the estimations so that, by the end of the calendar year in question, Tenant shall have paid all of the Additional Rent as estimated by Landlord. Any amounts paid based on such an
estimate shall be subject to adjustment as herein provided when actual Operating Costs are available for each calendar year. “Additional Rent,” as used herein, shall mean, collectively, Tenant’s Proportionate Share of the
Operating Costs Excess plus Tenant’s Proportionate Share of the Tax Excess (as defined below). 
 (2) The term “Operating
Costs” means all expenses and disbursements (subject to the limitations set forth below) that Landlord incurs in connection with the ownership, operation, maintenance, repair and replacement of the Project, determined in accordance with
sound accounting principles consistently applied, including the following costs: (A) wages and salaries of all on-site employees at or below the grade of general manager engaged in the operation,
maintenance or security of the Project (together with Landlord’s reasonable allocation of expenses of off-site employees at or below the grade of senior building manager who perform a portion of their
services in connection with the operation, maintenance or security of the Project), including taxes, insurance and benefits relating thereto; (B) all supplies and materials used in the operation, maintenance, repair, replacement and security of
the Project; (C) costs for improvements (as distinguished from replacement of parts or components installed in the ordinary cause of business) made to the Project that, although capital in nature, are expected to reduce the normal operating
costs (including all utility costs) of the Project or to enhance safety or security of the Property or its occupants, as amortized using a commercially reasonable interest rate over the time period reasonably estimated by Landlord to recover the
costs thereof taking into consideration the anticipated cost savings, as determined by Landlord using its good faith, commercially reasonable judgment, as well as capital improvements made in order to comply with any Law hereafter promulgated by any
governmental authority or any interpretation hereafter rendered with respect to any existing Law, to promote safety or to maintain the quality of the Project, as amortized using a commercially reasonable interest rate over the useful economic life
of such improvements as determined by Landlord in its reasonable discretion; (D) cost of all utilities, except the cost of utilities reimbursable to Landlord by the Project’s tenants other than pursuant to a provision similar to this
Section 4(b); (E) insurance expenses; (F) repairs, replacements, and general maintenance of the Project; (G) fair market rental and other costs with respect to the management office for the Building;
(H) service, maintenance and management contracts with independent contractors for the operation, maintenance, management, repair, replacement, or security of the Project (including alarm service, window cleaning, and elevator maintenance); (I)
Parking Facility operation, repair, restoration and maintenance; and (J) payments made or charges incurred under any reciprocal easement agreement, transportation management agreement, cost-sharing agreement or other covenant, condition,
restriction or similar document affecting or benefiting the Property whether now or hereafter in effect. 

  

					
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Avalara, Inc.

 Notwithstanding anything herein to the contrary, Operating Costs shall not include costs for: 

(i) capital improvements made to the Project, other than capital improvements described in Section 4(b)(2)(C) above and items that
are generally considered maintenance and repair items, such as painting of common areas, replacement of carpet in elevator lobbies, and the like; 
 (ii)
repair, replacements and general maintenance paid by proceeds of insurance or by Tenant or other third parties; 
 (iii) depreciation; 

(iv) leasing commissions; 
 (v) legal expenses for services, other
than those that benefit the Project tenants generally (e.g., tax disputes); 
 (vi) renovating or otherwise improving space for occupants of the Project or
vacant space in the Project; 
 (vii) Taxes; 
 (viii) federal
income taxes imposed on or measured by the income of Landlord from the operation of the Project; 
 (ix) depreciation or amortization on the Building; 

(x) debt service, rental under any ground or underlying lease, or interest, principal, points, and fees on any encumbrance, Mortgage, or other debt instrument
encumbering the Building except loans made to Landlord for capital improvements described in Section 4(b)(2)(C) above; 
 (xi)
Taxes (as defined below); 
 (xii) attorneys’ fees and expenses, brokerage commissions, advertising costs, or other related expenses incurred in
connection with the leasing of the Building including lease concessions, rental abatements, and construction allowances; 
 (xiii) the cost of any
improvements, repairs, or equipment that would be properly classified as capital expenditures (including the repair of structural portions of the roof, foundations, floors, and exterior walls of the Building), except as specifically provided in
Section 4(b)(2)(C) above; 
 (xiv) the cost (including permit, license, and inspection fees) of decorating and painting, improving
for tenant occupancy, or altering for tenant occupancy portions of the Building to be demised, or available to be demised, to tenants; 
 (xv) any deductible
under Landlord’s insurance policies in excess of a commercially reasonable deductible; 

  

					
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Avalara, Inc.

 (xvi) costs of insurance in excess of insurance that is customarily carried by prudent institutional owners of
Comparison Buildings; 
 (xvii) costs for which Landlord is reimbursed or entitled to be reimbursed by condemnation or insurance proceeds, other tenants, or
any other source (other than through this Operating Costs provision and similar provisions in other leases in the Building); 
 (xviii) costs to repair or
replace the Project resulting from any Casualty (as defined below) (other than the amount of any commercially reasonable insurance deductibles); 
 (xix)
rentals incurred in leasing equipment that if purchased rather than rented would have constituted a capital expenditure that is not specifically included in Operating Costs in accordance with the provisions of
Section 4(b)(2)(C) above; 
 (xx) any bad debt loss or rent loss; any reserves; 

(xxi) costs incurred in connection with the operation of the business entity constituting Landlord, as distinguished from the costs of operating the Project;

 (xxii) costs of selling, syndicating, financing, mortgaging, or hypothecating any of Landlord’s interest in the Building; and costs of defending any
lawsuits with any mortgagee; 
 (xxiii) amounts paid to Landlord or Landlord’s Affiliates for the provision of goods or services that would otherwise be
included in Operating Costs to the extent such costs exceed the fair market value of such goods or services; 
 (xxiv) the amount of any political or
charitable contributions; 
 (xxv) the cost of any “tenant relations” parties or promotions; 

(xxvi) the cost of repairs, alterations, additions, improvements, or replacements made to (a) comply with any Laws in effect as of the date of this Lease,
or (b) rectify or correct any damage caused by the gross negligence or willful misconduct of Landlord or any Landlord Party; 
 (xxvii) costs incurred
in installing, operating, and maintaining any specialty improvement not normally installed, operated, and maintained in Comparison Buildings, including an observatory, a luncheon club, or athletic or recreational facilities (except to the extent
available to tenants of the Building without charge); 
 (xxviii) the cost of wages, salaries, bonuses, and other compensation of all employees above the
grade of general manager (including asset managers, leasing agents, promotional directors, officers, directors, and executives of Landlord), including taxes, insurance, and benefits relating thereto; 

 
 (xxix) the cost of labor and employees with respect to personnel not located at the
Building on a full time basis unless such costs are appropriately allocated between the Building and the other responsibilities of such personnel; 

  

					
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Avalara, Inc.

 (xxx) costs, fines, penalties, and interest incurred due to violation by Landlord of the terms and conditions of
any lease, or any Laws, or due to violation by any other tenant in the Project of the terms and conditions of any lease, ground lease, mortgage or deed of trust, or other covenants, conditions, or restrictions encumbering the Project, or any Laws;

 (xxxi) interest, penalties, or other costs arising out of Landlord’s failure to make timely payment of its obligations; 

(xxxii) property management fees in excess of three percent (3%) of the gross income produced by the Project; 

(xxxiii) costs incurred to test, survey, clean up, contain, abate, remove, or otherwise remedy Hazardous Materials (as defined below) or mold from the Project;

 (xxxiv) costs of acquiring artwork; 
 (xxxv) costs of
providing utilities (including HVAC service, electricity, water, gas, fuel, steam, lighting, and sewer), janitorial service, or other benefits to other tenants to an extent in excess of the utilities, janitorial service, and other benefits, if any,
to which Tenant is entitled under this Lease at no additional charge; 
 (xxxvi) Landlord’s general overhead expenses not related to the Project; 

(xxxvii) legal fees, accountants’ fees, and other expenses incurred in connection with disputes with Tenant, other tenants or occupants of the Project, or
associated with the enforcement of any leases or defense of Landlord’s title or interest in the Project or any part thereof, other than those that benefit the Project tenants generally (e.g., tax disputes); 

(xxxviii) any compensation paid to clerks, attendants, or other persons in commercial concessions operated by Landlord in the Building; and 

(xxxix) advertising and promotional expenses, and the cost of acquiring and installing signs in or on the Building identifying the owner of the Building or any
other tenant or occupant of the Building. 
 Operating Costs for the Base Year only shall not include market-wide labor-rate increases due
to extraordinary circumstances, including boycotts and strikes; utility rate increases due to extraordinary circumstances, including conservation surcharges, boycotts, embargoes or other shortages; or amortized costs relating to capital
improvements. 
 Tenant shall also pay Tenant’s Proportionate Share of any increase in Taxes for each calendar year and partial calendar year falling
within the Term over the Taxes for the Base Year (the “Tax Excess”). Tenant shall not pay any charges for Taxes prior to the end of the first Base Year. Tenant shall pay Tenant’s Proportionate Share of the Tax Excess in the
same manner as provided above for Tenant’s Proportionate Share of the Operating Costs Excess (both on an estimated and actual basis as provided therein). “Taxes” means taxes, assessments, and governmental charges or fees
whether federal, state, county or municipal, and whether they be by taxing districts or authorities presently taxing or by others, subsequently created or otherwise, and any other taxes 

  

					
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Avalara, Inc.

 
and assessments (including nongovernmental assessments for common charges under a restrictive covenant or other private agreement that are not treated as part of Operating Costs) now or hereafter
attributable to the Project (or its operation), excluding, however, penalties and interest thereon. Notwithstanding anything to the contrary contained in this Lease, there shall be excluded from Taxes any excess profits taxes, franchise taxes, gift
taxes, inheritance and succession taxes, estate taxes, documentary transfer taxes, federal or state income, corporate, capital stock, or capital gains taxes, penalties incurred as a result of Landlord’s failure to pay taxes or to file any tax
or informational returns and other taxes to the extent applicable to Landlord’s general or net income (as opposed to rents, receipts, or income attributable to operations at the Project); provided, that if the present method of taxation changes
so that in lieu of or in addition to the whole or any part of any Taxes, there is levied on Landlord a capital tax directly on the rents received therefrom or a franchise tax, assessment, or charge based, in whole or in part, upon such rents for the
Project, then all such taxes, assessments, or charges, or the part thereof so based, shall be deemed to be included within the term “Taxes” for purposes hereof. If an assessment is payable in installments, Taxes for the year shall include
the amount of the installment and any interest due and payable during that year. For purposes of computing Taxes, any special assessment shall be deemed to have been paid in the maximum number of installments permitted by Law, and Taxes shall be
deemed to include all interest that would have been payable in connection therewith as a result of paying such special assessment in the maximum number of installments permitted by Law. For all other Taxes, the Taxes for that year shall, at
Landlord’s election, include either the amount accrued, assessed or otherwise imposed for the year or the amount due and payable for that year, provided that Landlord’s election shall be applied consistently throughout the Term. If there
is a change in Taxes for any year of the Term, then Taxes for that year will be retroactively adjusted and Landlord shall provide Tenant, as applicable, with a credit or a statement of any deficiency based on the adjustment. Tenant shall pay any
such deficiency within thirty (30) days after receipt of the statement from Landlord. Taxes shall include the costs of consultants retained in an effort to lower taxes and all costs incurred in disputing any taxes or in seeking to lower the tax
valuation of the Project. For property tax purposes, Tenant waives all rights to protest or appeal the appraised value of the Premises, as well as the Project, and all rights to receive notices of
re-appraisement. To the extent the same is in Landlord’s possession, Landlord shall provide a copy of the then-current tax bill to Tenant upon request. 

(3) By April 1 of each calendar year, or as soon thereafter as practicable, Landlord shall furnish to Tenant a statement of Operating
Costs for the previous year, in each case adjusted as provided in Section 4(b)(4) below, and of the Taxes for the previous year (the “Operating Costs and Tax Statement”). If Tenant’s estimated payments
of Tenant’s Proportionate Share of the Operating Costs Excess and/or Tax Excess, as the case may be, under this Section 4(b) for the year covered by the Operating Costs and Tax Statement exceed Tenant’s
Proportionate Share of the Operating Costs Excess and/or Tax Excess, as the case may be, as indicated in the Operating Costs and Tax Statement, then Landlord shall promptly credit or reimburse Tenant for such applicable excess; likewise, if
Tenant’s estimated payments of Tenant’s Proportionate Share of the Operating Costs Excess or Tax Excess, as the case may be, under this Section 4(b) for such year are less than Tenant’s Proportionate Share of
the Operating Costs Excess and/or Tax Excess, as the case may be, as indicated in the Operating Costs and Tax Statement, then Tenant shall pay Landlord such deficiency within thirty (30) days after receipt of the Operating Costs and Tax
Statement. No delay in providing any Operating Costs and Tax Statement shall be deemed a default by Landlord or a waiver of Landlord’s right to require payment of Tenant’s Obligations for actual or estimated Operating Costs Excess or Tax
Excess. 

  

					
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 (4) With respect to any calendar year or partial calendar year in which the Building is not
occupied to the extent of one hundred percent (100%) of the rentable area thereof, or Landlord is not supplying services to one hundred percent (100%) of the rentable area thereof, the Operating Costs for such period that vary with the occupancy of
the Building shall, for the purposes hereof, be increased to the amount that would have been incurred had the Building been occupied to the extent of one hundred percent (100%) of the rentable area thereof and Landlord had been supplying services to
one hundred percent (100%) of the rentable area thereof; provided, however, in no event shall Tenant be obligated to pay for services that are not provided to unoccupied portions of the Building, and the terms of the immediately foregoing sentence
shall not apply to services are provided to unoccupied portions of the building. If a category of Operating Costs is first incurred in a calendar year after the Base Year, then for purposes of calculating the Operating Costs Excess for such calendar
year (and the following calendar years) the Operating Costs for the Base Year shall be deemed to be increased to include the amount that Landlord reasonably estimates would have been incurred by Landlord for such category of Operating Costs in the
Base Year if Landlord had incurred such category of Operating Costs in the Base Year. Conversely, if in a calendar year subsequent to the Base Year, Landlord no longer incurs a category of Operating Costs, then for purposes of calculating the
Operating Costs Excess for such calendar year (and the following calendar year), Operating Costs for such Base Year shall be deemed to be decreased by the amount that Landlord actually incurred for such category of Operating Costs in the Base Year.
The adjustments to the Operating Costs for the Base Year provided for in the preceding two sentences shall not be deemed to require a recalculation of the Operating Costs Excess for any calendar year prior to the calendar year in question. 

(5) Tenant may once, within one hundred eighty (180) days after receiving the Operating Costs and Tax Statement, give Landlord notice
(the “Review Notice”) that Tenant intends to have Landlord’s records of the Operating Costs and Taxes for the calendar year covered by the Operating Costs and Tax Statement reviewed (the “Review”) for the sole
purpose of determining whether the Operating Costs and Tax Statement is accurate; provided that as a condition to Tenant’s exercise of its right of Review set forth in this Section 4(b)(5), Tenant shall not be
permitted to withhold payment of, and Tenant shall timely pay to Landlord, the full amount as required by the provisions of this Section 4 in accordance with such Operating Costs and Tax Statement. However, such payment may
be made under protest pending the outcome of the Review. If Tenant retains an agent to review Landlord’s records, the agent shall be with a CPA firm licensed to do business in the State of Washington (working on a
non-contingency fee basis) and its fees shall not be contingent in whole or in part, upon the outcome of the review (“Tenant’s Accountant”). Within a reasonable time after receipt of the
Review Notice (not to exceed thirty (30) days), Landlord shall make available to Tenant’s Accountant during normal business hours all pertinent records with respect to the Operating Costs and Tax Statement for the calendar year that is the
subject of the Review Notice and that are reasonably necessary for Tenant’s Accountant to conduct the Review. If any records are maintained at a location other than the office of the Building, Tenant’s Accountant may either inspect the
records at such other location or Tenant may pay for the reasonable cost of copying 

  

					
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Avalara, Inc.

 
and shipping the records. Except as otherwise expressly hereinafter provided, Tenant shall be solely responsible for all costs, expenses and fees incurred for the Review. Within sixty
(60) days after the records are made available to Tenant’s Accountant (the “Objection Period”), Tenant shall have the right to give Landlord notice (an “Objection Notice”) stating in reasonable detail any
objection to Landlord’s Operating Costs and Tax Statement for that year. If Tenant fails to provide Landlord with a Review Notice with respect to the Operating Costs and Tax Statement for any calendar year within the one hundred eighty
(180) day period described above, or fails to give Landlord an Objection Notice within the sixty (60) day period described above, Tenant shall be deemed to have approved the Operating Costs and Tax Statement and shall be barred from
raising any claims regarding the Operating Costs and Tax Statement for that year. If Landlord agrees with Tenant’s Objection Notice, then Landlord shall credit the amount of any overpayment by Tenant in respect of Operating Costs and Taxes
against the Rent next payable under this Lease; provided, that if the Term shall have expired, then any overpayment for which Tenant may otherwise have received a credit shall be refunded to Tenant within thirty (30) days after receipt of said
certification at Tenant’s last known address after deducting the amount of Rent and any other payments due. If Landlord disagrees with Tenant’s Objection Notice, then Landlord shall give to Tenant notice thereof within thirty
(30) days after Landlord’s receipt of Tenant’s Objection Notice, which notice shall set forth in reasonable detail the reasons for such disagreement, and Landlord and Tenant shall attempt to resolve the disagreement. If Landlord and
Tenant cannot mutually agree on the resolution of the disagreement within thirty (30) days after Tenant’s receipt of Landlord’s notice of disagreement, then Landlord and Tenant shall jointly choose an independent certified public
accountant located in Seattle, Washington who has not represented either Landlord, Tenant, or their respective Affiliates, in the preceding five (5) years to resolve the disagreement, whose determination shall be binding on the parties hereto.
If the parties are unable to agree upon such independent certified public accountant, then either Landlord or Tenant shall have the right to petition for the appointment of the independent accountant by the Presiding Judge of the Superior Court of
King County, Washington and the decision of such Judge (and the determination of the accountant appointed by such Judge) shall be final and binding upon the parties, and not subject to appeal of any kind. If the final determination shall disclose
that the Operating Costs and Tax Statement for the calendar year in question were overstated by more than five percent (5%), then Landlord shall reimburse Tenant, within thirty (30) days after Landlord receives notice of such final
determination, for the reasonable costs of the independent certification or reimburse Tenant (as applicable) the cost of Tenant’s accountant’s review, up to a maximum of Five Thousand and 00/100 Dollars ($5,000.00) per review (but each
party shall pay the cost of its respective attorney’s fees); otherwise, the cost of the audit and arbitration shall be paid by Tenant. If Operating Costs and/or Taxes for the calendar year are less than reported, Landlord shall provide Tenant
with a credit against the payment of Rent next due in the amount of the overpayment by Tenant; provided, however, if the Term shall have expired, then any overpayment for which Tenant may otherwise have received a credit shall be refunded to Tenant
within thirty (30) days after receipt of said certification at Tenant’s last known address after deducting the amount of Rent and any other payments due. Likewise, if Landlord and Tenant determine that Operating Costs and/or Taxes for the
calendar year are greater than reported, Tenant shall pay Landlord the amount of any underpayment in Tenant’s Pro Rata Share thereof within thirty (30) days. Tenant acknowledges and agrees that any records reviewed under this provision
constitute confidential information of Landlord that shall not be disclosed to anyone other than Tenant’s Accountant and the principals 

  

					
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of Tenant who receive the results of such Review. Before making any records available for review, Landlord may require Tenant and Tenant’s Accountant to execute a reasonable confidentiality
agreement, in which event Tenant shall cause the same to be executed and delivered to Landlord within ten (10) days after receiving it from Landlord, and if Tenant fails to do so, the Objection Period shall be reduced by one (1) day for each
day by which such execution and delivery follows the expiration of such thirty (30)-day period. 

(c) Cost Pools. Landlord shall have the right, from time to time, to equitably allocate some or all of the Operating Costs
and/or Taxes for the Project among different portions or occupants of the Project (the “Cost Pools”), in Landlord’s reasonable discretion. Such Cost Pools may include, but shall not be limited to, the office space tenants of
the Project and the retail space tenants (if any) of the Project. The Operating Costs and/or Taxes within each such Cost Pool shall be allocated and charged to the tenants as determined by Landlord in accordance with sound real estate management
principles, consistently applied. 
 5. Delinquent Payment; Handling Charges. All past due payments required of
Tenant hereunder that are not received by Landlord on or before five (5) days after the date the payment is due (i) shall bear interest from the date due until paid at the lesser of twelve percent (12%) per annum or the maximum lawful rate
of interest (such lesser amount is referred to herein as the “Default Rate”); and (ii) Landlord, in addition to all other rights and remedies available to it, may charge Tenant a fee equal to five percent (5%) of the delinquent
payment to reimburse Landlord for its cost and inconvenience incurred as a consequence of Tenant’s delinquency. In no event, however, shall the charges permitted under this Section 5 or elsewhere in this Lease, to the
extent they are considered to be interest under applicable Law, exceed the maximum lawful rate of interest. Notwithstanding the foregoing, the late fee referenced above shall not be charged with respect to the first occurrence (but shall be charged
with respect to any subsequent occurrence) during any twelve (12)-month period in which Tenant fails to make payment when due, until five (5) days after Landlord delivers written notice of such delinquency to Tenant. 

6.    Letter of Credit. 

(a) General Provisions. Concurrently with Tenant’s execution of this Lease, Tenant shall deliver to Landlord, as
collateral for the full performance by Tenant of all of its obligations under this Lease and for all losses and damages Landlord may suffer as a result of Tenant’s failure to comply with one or more provisions of this Lease, a standby,
unconditional negotiable, irrevocable, transferable letter of credit (the “Letter of Credit”) substantially in the form of Exhibit L attached to this Lease and containing the terms required herein, in the face
amount set forth for the Letter of Credit in the Basic Lease Information (the “Letter of Credit Amount”), naming Landlord as beneficiary, issued (or confirmed) by a financial institution acceptable to Landlord in Landlord’s
reasonable discretion, permitting multiple and partial draws thereon, and otherwise in form acceptable to Landlord in its sole discretion. Tenant shall cause the Letter of Credit to be continuously maintained in effect (whether through replacement,
renewal or extension) in the Letter of Credit Amount through the date (the “Final LC Expiration Date”) that is ninety (90) days after the scheduled expiration date of the Lease Term, as it may be extended from time to time. If
the Letter of Credit held by Landlord expires before the Final LC Expiration Date (whether by reason of a stated expiration date or a notice of 

  

					
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termination or nonrenewal given by the issuing bank), Tenant shall deliver a new Letter of Credit or certificate of renewal or extension to Landlord not less than sixty (60) days before the
expiration date of the Letter of Credit then held by Landlord. In addition, if, at any time before the Final LC Expiration Date, the financial institution that issued (or confirmed) the Letter of Credit held by Landlord fails to meet the
“Minimum Financial Requirement” (as defined below), then, within five (5) Business Days after Landlord’s demand, Tenant shall deliver to Landlord, in replacement of such Letter of Credit, a new Letter of Credit issued (or
confirmed) by a financial institution that meets the Minimum Financial Requirement and is otherwise acceptable to Landlord in Landlord’s reasonable discretion, whereupon Landlord shall return to Tenant the Letter of Credit that is being
replaced. For purposes hereof, a financial institution shall be deemed to meet the “Minimum Financial Requirement” on a particular date if and only if, as of such date, such financial institution (a) has not been placed into
receivership by the FDIC; and (b) has a financial strength that, in Landlord’s good faith judgment, is not less than that which is then generally required by Landlord and its Affiliates as a condition to accepting letters of credit in support
of new leases. Any new Letter of Credit or certificate of renewal or extension (a “Renewal or Replacement LC”) shall comply with all of the provisions of this Section 6, shall be irrevocable, transferable
and shall remain in effect (or be automatically renewable) through the Final LC Expiration Date upon the same terms as the Letter of Credit that is expiring or being replaced. 

(b) Drawings under Letter of Credit. Upon an Event of Default by Tenant or, if Landlord is prohibited by applicable Laws
from providing notice to Tenant of Tenant’s failure to comply with one or more provisions of this Lease, then upon any such failure by Tenant and lapse of the specified cure period without the necessity of providing notice to Tenant, Landlord
may, without prejudice to any other remedy provided in this Lease or by applicable Laws, draw on the Letter of Credit and use all or part of the proceeds to (a) satisfy any amounts due to Landlord from Tenant, and (b) satisfy any other
damage, injury, expense or liability caused by Tenant’s failure to so comply. In addition, if Tenant fails to furnish a Renewal or Replacement LC complying with all of the provisions of this Section 6 when required
hereunder, Landlord may draw upon the Letter of Credit and hold the proceeds thereof (and such proceeds need not be segregated) in accordance with the terms of this Section 6 (the “LC Proceeds Account”).

 (c) Use of Proceeds by Landlord. The proceeds of the Letter of Credit shall constitute Landlord’s sole and
separate property (and not Tenant’s property or the property of Tenant’s bankruptcy estate) and Landlord may, immediately upon any draw (and without notice to Tenant), apply or offset the proceeds of the Letter of Credit against
(a) any Rent payable by Tenant under this Lease that is not paid when due; (b) all losses and damages that Landlord has suffered or that Landlord reasonably estimates that it may suffer as a result of Tenant’s failure to comply with
one or more provisions of this Lease; (c) any costs incurred by Landlord in connection with this Lease (including attorneys’ fees), which costs the Tenant is obligated to pay or reimburse; and (d) any other reasonable amount that
Landlord may spend or become obligated to spend by reason of Tenant’s failure to comply with this Lease and that Tenant is obligated to pay or reimburse under this Lease or under applicable Laws. Provided that Tenant has performed all of its
obligations under this Lease, Landlord shall pay to Tenant, within sixty (60) days after the Final LC Expiration Date, the amount of any proceeds of the Letter of Credit received by Landlord and not applied as provided above; provided, however,
that if, before the 

  

					
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expiration of such sixty (60) day period, a voluntary petition is filed by Tenant, or an involuntary petition is filed against Tenant by any of Tenant’s or Guarantor’s creditors,
under the Federal Bankruptcy Code, then such payment shall not be required until either all preference issues relating to payments under this Lease have been resolved in such bankruptcy or reorganization case or such bankruptcy or reorganization
case has been dismissed, in each case pursuant to a final court order not subject to appeal or any stay pending appeal. 
 (d)
Additional Covenants of Tenant. If, for any reason, the amount of the Letter of Credit becomes less than the Letter of Credit Amount, Tenant shall, within five (5) days thereafter, provide Landlord with additional letter(s)
of credit in an amount equal to the deficiency (or a replacement letter of credit in the total Letter of Credit Amount), and any such additional (or replacement) letter of credit shall comply with all of the provisions of this
Section 6, and if Tenant fails to comply with the foregoing, notwithstanding any contrary provision of this Lease, such failure shall constitute an incurable Default by Tenant. Tenant further covenants and warrants that it
will neither assign nor encumber the Letter of Credit or any part thereof and that neither Landlord nor its successors or assigns will be bound by any such assignment, encumbrance, attempted assignment or attempted encumbrance. The use, application
or retention of the Letter of Credit, or any portion thereof, by Landlord shall not prevent Landlord from exercising any other right or remedy provided by this Lease or by any applicable Laws, it being intended that Landlord shall not first be
required to proceed against the Letter of Credit, and shall not operate as a limitation on any recovery to which Landlord may otherwise be entitled. Tenant agrees not to interfere in any way with payment to Landlord of the proceeds of the Letter of
Credit, either prior to or following a “draw” by Landlord of any portion of the Letter of Credit, regardless of whether any dispute exists between Tenant and Landlord as to Landlord’s right to draw upon the Letter of Credit, provided
that nothing herein shall affect Tenant’s rights and remedies after the Letter of Credit is drawn if Tenant disputes Landlord’s right to draw on the Letter of Credit or to apply any portion of the proceeds thereof. No condition or term of
this Lease shall be deemed to render the Letter of Credit conditional to justify the issuer of the Letter of Credit in failing to honor a drawing upon such Letter of Credit in a timely manner. Tenant agrees and acknowledges that, in the event Tenant
becomes a debtor under any chapter of the Bankruptcy Code, neither Tenant, nor any trustee, nor Tenant’s bankruptcy estate shall have any right to restrict or limit Landlord’s claim and/or rights to the Letter of Credit and/or the proceeds
thereof under the provisions of this Lease by application of Section 502(b)(6) of the U.S. Bankruptcy Code or otherwise. 
 (e)
Nature of Letter of Credit. Landlord and Tenant (a) acknowledge and agree that in no event shall the Letter of Credit or any renewal thereof, any substitute therefor or any proceeds thereof (including the LC Proceeds
Account) be deemed to be or treated as a “security deposit” under any Law applicable to security deposits in the commercial context (“Security Deposit Laws”); (b) acknowledge and agree that the Letter of Credit (including
any renewal thereof, any substitute therefor or any proceeds thereof) is not intended to serve as a security deposit and shall not be subject to the Security Deposit Laws; and (c) waive any and all rights, duties and obligations either party
may now or, in the future, will have relating to or arising from the Security Deposit Laws. Tenant hereby waives the provisions of all provisions of Law, now or hereafter in effect, which (i) establish the time frame by which Landlord must
refund a security deposit under a lease, and/or (ii) provide that Landlord may claim from the security deposit only those sums reasonably necessary to remedy defaults in the payment of rent, 

  

					
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to repair damage caused by Tenant or to clean the Premises, it being agreed that Landlord may, in addition, claim those sums specified above in this Section 6 and/or
those sums reasonably necessary to compensate Landlord for any loss or damage caused by Tenant’s breach of this Lease or the acts or omission of Tenant or any other Tenant Parties, including any damages Landlord suffers following termination of
this Lease. 
 (f) Transfer of Letter of Credit. The Letter of Credit shall provide that Landlord, its successors and
assigns, may, at any time with notice to Tenant but without first obtaining Tenant’s consent thereto, transfer (one or more times) all or any portion of its interest in and to the Letter of Credit to another party, person or entity, but only as
a part of the assignment by Landlord of its rights and interests in and to this Lease or in connection with Landlord’s financing of the Property or the Project. In the event of a transfer of Landlord’s interest in the Building, Landlord
shall transfer the Letter of Credit, in whole or in part, to the transferee and thereupon Landlord shall, without any further agreement between the parties, be released by Tenant from all liability therefor arising after such transfer, and it is
agreed that the provisions hereof shall apply to every transfer or assignment of the whole or any portion of said Letter of Credit to a new landlord. Landlord shall remain liable to Tenant, however, for the refund of any prior withdrawals from the
Letter of Credit as and to the extent such refund is required under this Lease or applicable Laws, but only to the extent that such refundable amount has not been transferred to the Landlord’s successor in interest. In connection with any such
transfer of the Letter of Credit by Landlord, Tenant shall, at Tenant’s sole cost and expense, execute and submit to the issuing or confirming financial institution such applications, documents and instruments as may be necessary to effectuate
such transfer, and Tenant shall be responsible for paying such financial institution’s transfer and processing fees in connection therewith. 

7. Landlord’s Obligations. 

(a) Services. Landlord shall furnish to Tenant (1) domestic water at those points of supply provided for general use
of tenants of the Building; (2) heated and refrigerated air-conditioning (“HVAC”); (3) janitorial service to the Premises five (5) days per week other than Holidays (as defined
below), for Building-standard installations and such window washing as may from time to time be reasonably required; (4) passenger elevators for ingress and egress to the floor on which the Premises are located, in common with other tenants,
provided that Landlord may reasonably limit the number of operating elevators during nonbusiness hours and Holidays; and (5) electrical current during normal business hours for equipment that does not require more than 110 volts and whose
electrical energy consumption does not exceed normal office usage. Subject to the provisions of Section 15 below, Landlord shall maintain the Common Areas of the Building in reasonably good order and condition. If Tenant
desires any of the services specified in clause (2) of this Section 7(a) above, (A) at any time other than between 7:00 a.m. and 6:00 p.m. on weekdays (other than Holidays), and 8:00 a.m. to 1:00 p.m. on Saturdays
(other than Holidays) or (B) on Sunday or Holidays, then such services shall be supplied to Tenant on weekdays upon the request of Tenant delivered to Landlord before 2:00 p.m. and on Saturdays, Sundays and Holidays upon request of Tenant
delivered to Landlord before 2:00 p.m. on the Business Day preceding such extra usage, and Tenant shall pay to Landlord the cost of such services at the Building’s then-prevailing rates then charged by Landlord within thirty (30) days
after Landlord has delivered to Tenant an invoice therefor. As 

  

					
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of the date of this Lease, the current rate for after-hours HVAC service is $70.00 per hour (subject to change from
time-to-time following 30-day written notice to Tenant). The costs incurred by Landlord in providing after-hours HVAC service to
Tenant shall include Landlord’s actual costs (without markup) for electricity, water, sewage, water treatment, labor, metering, filtering, and maintenance reasonably allocated by Landlord to providing such service. “Holidays”
means New Year’s Day, Martin Luther King Jr. Day, President’s Day, Memorial Day, Independence Day, Labor Day, Thanksgiving Day, and Christmas Day. 

(b) Excess Utility Use. Landlord shall not be required to furnish electrical current for equipment that requires more than
110 volts or other equipment whose electrical energy consumption exceeds normal office usage. If Tenant’s requirements for or consumption of electricity exceed the electricity to be provided by Landlord as described in
Section 7(a) above, Landlord shall, at Tenant’s expense, make reasonable efforts to supply such service through the then-existing feeders and risers serving the Building and the Premises, and Tenant shall pay to
Landlord the actual, reasonable cost of such service within thirty (30) days after Landlord has delivered to Tenant an invoice therefor, together with reasonable supporting evidence. Landlord may determine the amount of such additional
consumption and potential consumption by any verifiable method, including installation of a separate meter in the Premises installed, maintained, and read by Landlord, at Tenant’s expense. Tenant shall not install any electrical equipment
requiring special wiring or requiring voltage in excess of 110 volts unless approved in advance by Landlord, which approval shall not be unreasonably withheld. Tenant shall not install any electrical equipment requiring voltage in excess of Building
capacity unless approved in advance by Landlord, which approval may be withheld in Landlord’s sole discretion. The use of electricity in the Premises shall not exceed the capacity of existing feeders and risers to, or wiring in, the Premises.
Any risers or wiring required to meet Tenant’s excess electrical requirements shall, upon Tenant’s written request, be installed by Landlord, at Tenant’s cost, if, in Landlord’s judgment, the same are necessary and shall not
cause permanent damage to the Building or the Premises, cause or create a dangerous or hazardous condition, entail excessive or unreasonable alterations, repairs, or expenses, or interfere with or disturb other tenants of the Building. If Tenant
uses machines or equipment in the Premises (other than typical desktop computers, lap top computers (which are currently used by all Tenant employees), scanners, fax machines, communal printers, and desktop printers and similar desktop equipment)
that materially and unreasonably affect the temperature otherwise maintained by the air-conditioning system or otherwise overload any utility, then after 30 days’ notice to Tenant, Landlord may install
supplemental air-conditioning units or other supplemental equipment in the Premises, and the reasonable, actual, out of pocket cost thereof, including the cost of installation, operation, use, and maintenance,
in each case plus an administrative fee of five percent (5%) of such cost, shall be paid by Tenant to Landlord within thirty (30) days after Landlord has delivered to Tenant an invoice therefor, together with reasonable supporting evidence.

 (c) Landlord’s Repairs. Landlord shall repair and maintain in good order, repair and condition, the cost of
which shall be included in Operating Costs to the extent permitted in Section 4 above, the Building’s Structure, the Building’s Systems and the common areas of the Building and Project (but not including any non-base building facilities installed in the Premises); provided, however, to the extent such maintenance and repairs are caused by the willful act of any Tenant Party, then subject to the waiver of subrogation
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Tenant shall pay to Landlord as additional Rent, the reasonable cost of such maintenance and repairs, which payment shall be made by Tenant to Landlord within thirty (30) days after
Tenant’s receipt of an invoice therefor, together with reasonable supporting evidence. Landlord shall commence to make all repairs under this Section as soon as reasonably possible after Landlord learns of the need for such repairs but in any
event within thirty (30) days after Tenant notifies Landlord of the need for such repairs. Except as set forth herein, there shall be no abatement of Rent and no liability of Landlord by reason of any injury to or interference with
Tenant’s business arising from the making or failing to make any repairs, alterations or improvements in or to any portion of the Project. Tenant hereby waives and releases any right to make repairs at Landlord’s expense under any Law now
or hereafter in effect. 
 (d) Restoration of Services; Abatement. Landlord shall use reasonable efforts to restore any
service required of it that becomes unavailable; however, such unavailability shall not render Landlord liable for any damages caused thereby, be a constructive eviction of Tenant, constitute a breach of any implied warranty, constitute a breach of
any covenant (provided Landlord uses such reasonable efforts), or, except as provided in the next sentence, entitle Tenant to any abatement of Tenant’s obligations hereunder. If, however, Tenant is prevented from using the Premises because of
the unavailability of any such service for a period of three (3) consecutive Business Days following Landlord’s receipt from Tenant of a written notice regarding such unavailability, the restoration of which is within Landlord’s
reasonable control, and such unavailability was not caused by a Tenant Party, a governmental directive or cause beyond Landlord’s control, then Tenant shall, as its exclusive remedy, be entitled to a reasonable abatement of Rent for each
consecutive day (after such three Business Day period) that Tenant is so prevented from using the Premises. 
 (e) General
Abatement. In the event that Tenant is prevented from using, and does not use, the Premises or any portion thereof, as a result of any failure by Landlord to provide services, access to the Premises, or parking, to the extent Landlord
is obligated to provide the same under this Lease, or due to the presence of any Hazardous Materials (other than Hazardous Materials brought on to the Premises by Tenant or any Tenant’s Agent) (any such set of circumstances to be known as an
“Abatement Event”), then Tenant shall give Landlord notice of such Abatement Event, and if such Abatement Event continues for three (3) consecutive Business Days after Landlord’s receipt of any such notice (the “Eligibility
Period”), then Rent shall be abated or reduced, as the case may be, after the expiration of the Eligibility Period for such time that Tenant continues to be so prevented from using, and does not use, the Premises or a portion thereof, in the
proportion that the rentable area of the portion of the Premises that Tenant is prevented from using, and does not use, bears to the total rentable area of the Premises; provided, however, in the event that Tenant is prevented from using, and does
not use, a portion of the Premises for a period of time in excess of the Eligibility Period and the remaining portion of the Premises is not sufficient to allow Tenant to effectively conduct its business therein, and if Tenant does not conduct its
business from such remaining portion, then for such time after expiration of the Eligibility Period during which Tenant is so prevented from effectively conducting its business therein, the Rent for the entire Premises shall be abated for such time
as Tenant continues to be so prevented from using, and does not use, the Premises. If, however, Tenant reoccupies any portion of the Premises during such period, the Rent allocable to such reoccupied portion, based on the proportion that the
rentable area of such reoccupied portion of the Premises bears to the total rentable area of the Premises, shall be payable by Tenant from the date Tenant reoccupies such portion of the Premises. To the extent Tenant is entitled to abatement without
regard to the Eligibility Period because of an event described in Sections 14 or 15 of this Lease, then the Eligibility Period shall not be applicable. 

  

					
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 8. Improvements; Alterations; Repairs; Maintenance. 

(a) Improvements; Alterations. All alterations, improvements, betterments and other physical additions in or to the
Premises (collectively, “Alterations”) shall be installed at Tenant’s expense only in accordance with plans and specifications that have been previously submitted to and approved by Landlord, which approval shall be governed by
the provisions set forth in this Section 8(a), and otherwise in accordance with the provisions hereof, except with respect to the Tenant Improvements (as defined in the Tenant Work Letter attached hereto as Exhibit
D), which shall be governed by the terms and conditions thereof, and Cables (as defined below), which shall be installed, maintained, replaced and removed in accordance with the terms and conditions of Section 25 below.
Except as provided in this Lease, no Alterations may be made without Landlord’s prior written consent to such Alterations and the plans and specifications, and the construction means and methods, therefor, which shall not be unreasonably
withheld or delayed; however, Landlord may withhold its consent to any alteration or addition that would adversely affect (in the reasonable discretion of Landlord) the (1) Building’s Structure or the Building’s Systems (including the
Building’s restrooms or mechanical rooms), (2) exterior appearance of the Building, (3) appearance of the Common Areas or elevator lobby areas, or (4) provision of services to other occupants of the Building. If Landlord consents to
Alterations, Landlord may impose such conditions with respect thereto as are reasonably appropriate, including (A) requiring Tenant to furnish (i) [deleted], (ii) insurance against liabilities that may arise out of such work, and
(iii) plans and specifications, and permits for such work, and (B) requiring (at the time that Landlord provides its consent to such Alterations) Tenant to remove any and all such Alterations (including fixtures) in or to the Premises
prior to the expiration or earlier termination of this Lease at Tenant’s sole cost and expense (the terms set forth in Section 3.5 of the Tenant Work Letter shall govern with respect to Landlord’s notification to Tenant of any Tenant
Improvements that Landlord will require to be removed prior to the expiration or earlier termination of this Lease). Tenant’s plans and specifications and construction means and methods shall be subject to Landlord’s written approval, not
to be unreasonably withheld. Tenant shall furnish to Landlord any documents and information requested by Landlord in connection with the exercise of its rights hereunder. Tenant shall not paint or install lighting or decorations, signs, window or
door lettering, or advertising media of any type that is intended to be viewed from the exterior of the Premises (as reasonably determined by Landlord) without the prior written consent of Landlord, which consent may be withheld in Landlord’s
reasonable discretion. All Alterations shall be constructed, maintained, and used by Tenant, at its risk and expense, in accordance with all Laws and the Landlord’s then current contractor rules and regulations; Landlord’s consent to or
approval of any Alterations (or the plans therefor) shall not constitute a representation or warranty by Landlord, nor Landlord’s acceptance, that the same comply with sound architectural and/or engineering practices, or with all applicable
Laws, and Tenant shall be solely responsible for ensuring all such compliance. If, as a result of Tenant’s particular use of the Premises (as opposed to a general office use) or the making of any Alterations to the Premises and/or installation
of any Tenant Improvements pursuant to this Section 8(a), Section 25 below, or the Tenant Work Letter, respectively, any other alterations, improvements, betterments or other 

  

					
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physical additions shall be required to be made to any part of the Premises or the Project to comply with the requirements of any applicable Law, including the requirements of the Disabilities
Act (as defined below), the Occupational Safety & Health Administration (OSHA), or the orders or requirements imposed by any health officer, fire marshal or building inspector, Tenant shall be solely responsible for the costs incurred to
effect such compliance. If the required alteration, improvement, betterment or other physical addition will not affect the Building’s Structure or the Building’s Systems, Tenant shall perform such work subject to this
Section 8(a). If the required alteration, improvement, betterment or other physical addition will affect the Building’s Structure or the Building’s Systems, Landlord shall have the right to perform such work and
Tenant shall reimburse Landlord in an amount equal to Landlord’s reasonable, actual, out-of-pocket costs plus five percent (5%) for overhead, which shall be payable
within thirty (30) days of Landlord’s receipt of any invoice therefor, together with reasonable supporting evidence. Notwithstanding the foregoing provisions of this Section 8(a) to the contrary, Tenant may make
non structural Alterations to the interior of the Premises (collectively, the “Acceptable Changes” and individually, each an “Acceptable Change”) without Landlord’s consent, provided that, with respect to each
such Acceptable Change: (A) Tenant delivers to Landlord written notice of such Acceptable Change at least fifteen (15) days prior to the commencement thereof; (B) the aggregate cost of such Acceptable Change along with all other
Acceptable Changes during any twelve (12) consecutive month period does not exceed Seventy-Five Thousand and 00/100 Dollars ($75,000.00); (C) such Acceptable Change is performed by or on behalf of Tenant in compliance with the other provisions
of this Section 8; (D) such Acceptable Change does not require the issuance of a building permit or other governmental approval; (E) such Acceptable Change would not have an adverse effect (in Landlord’s
reasonable discretion) on the Building’s Structure, the Building’s Systems (including the Building’s restrooms and mechanical rooms), or the provision of utilities or services to occupants of the Building; (F) such Acceptable
Change cannot be seen from outside the Premises; and (G) such Acceptable Change is performed by qualified contractors and subcontractors that normally and regularly perform similar work in the Comparison Buildings. 

(b) Repairs; Maintenance. Tenant shall at its sole expense maintain the interior, nonstructural portion of the Premises in
a clean, safe, and operable condition, and shall not permit or allow to remain any waste (as defined by applicable law) or damage to any portion of the Premises. Additionally, Tenant, at its sole expense, shall repair, replace and maintain in good
condition and in accordance with all Laws and the equipment manufacturer’s suggested service programs, all interior portions of the Premises, Tenant’s Off-Premises Equipment and all areas,
improvements and systems located in and exclusively serving the Premises. If Tenant fails to make such repairs or replacements within fifteen (15) days after the occurrence of such damage and notice from Landlord, then Landlord may make the
same at Tenant’s cost. If any such damage occurs outside the Premises, then Landlord may elect to repair such damage at Tenant’s expense using Landlord’s usual contractor for such work and at competitive rates, rather than having
Tenant repair such damage. The cost of all maintenance, repair or replacement work performed by Landlord under this Section 8 shall be paid by Tenant to Landlord within thirty (30) days after Landlord has invoiced
Tenant therefor, together with reasonable supporting evidence. In the event that Tenant’s waiver of subrogation as provided in this Lease does not apply to the following, Tenant’s obligations under this Lease shall not include making:
(a) any repair or improvement necessitated by the negligence or willful misconduct of Landlord, its agents, employees or servants; (b) any repair or improvement caused by Landlord’s failure to perform its obligations hereunder or
under any other agreement between Landlord and Tenant; or (c) any structural repairs, improvements or alterations to the Premises or the Building. 

  

					
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 (c) Performance of Work. All work described in this
Section 8 shall be performed only by Landlord’s usual contractor for such work at competitive rates or by contractors and subcontractors approved in writing by Landlord, which approval shall not be unreasonably
withheld. Tenant shall cause all contractors and subcontractors to procure and maintain insurance coverage naming Landlord, Landlord’s property management company, Landlord’s asset management company and such other persons or entities as
Landlord may designate in writing to Tenant from time to time as additional insureds using ISO additional insured endorsement CG 20 11 (or a substitute satisfactory to Landlord providing equivalent coverage), and under the commercial umbrella, if
any, against such risks, in such amounts, and with such companies as Landlord may reasonably require. Tenant shall provide Landlord with the identities, mailing addresses and telephone numbers of all persons performing work or supplying materials
prior to beginning such construction, and Landlord may post on and about the Premises notices of non-responsibility pursuant to applicable Laws. All such work shall be performed in accordance with all Laws and
in a good and workmanlike manner so as not to damage the Building (including the Premises, the Building’s Structure and the Building’s Systems). All such work that may affect the Building’s Structure or the Building’s Systems
must be approved by the Building’s engineer of record, at Tenant’s expense and, at Landlord’s election, must be performed by Landlord’s usual contractor for such work at competitive rates. All work affecting the roof of the
Building must be performed by Landlord’s roofing contractor at competitive rates and no such work will be permitted if it would void or reduce the warranty on the roof. 

(d) Mechanic’s Liens. All work performed, materials furnished, or obligations incurred by or at the request of a
Tenant Party shall be deemed authorized and ordered by Tenant only, and Tenant shall not permit any mechanic’s liens to be filed against the Premises or the Project in connection therewith. Upon completion of any such work, Tenant shall deliver
to Landlord final lien waivers from all contractors, subcontractors and materialmen who performed such work. If such a lien is filed, then Tenant shall, within ten (10) days after Landlord has delivered notice of the filing thereof to Tenant
(or such earlier time period as may be necessary to prevent the forfeiture of the Premises, the Project or any interest of Landlord therein or the imposition of a civil or criminal fine with respect thereto), either (1) pay the amount of the
lien and cause the lien to be released of record, or (2) diligently contest such lien and deliver to Landlord a bond or other security reasonably satisfactory to Landlord. If Tenant fails to timely take either such action, then Landlord may pay
the lien claim, and any reasonable amounts so paid, including expenses and interest, shall be paid by Tenant to Landlord within thirty (30) days after Landlord has invoiced Tenant therefor, together with reasonable supporting evidence. Landlord
and Tenant acknowledge and agree that their relationship is and shall be solely that of “landlord-tenant” (thereby excluding a relationship of “owner-contractor,” “owner-agent” or other similar relationships).
Accordingly, all materialmen, contractors, artisans, mechanics, laborers and any other persons now or hereafter contracting with Tenant, any contractor or subcontractor of Tenant or with any other Tenant Party for the furnishing of any labor,
services, materials, supplies or equipment with respect to any portion of the Premises, at any time from the date hereof until the end of the Term, are hereby charged with notice that they look exclusively to Tenant to obtain payment for same.
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consent by Landlord to any liens being placed upon the Premises, the Project or Landlord’s interest therein due to any work performed by or for Tenant or deemed to give any contractor or
subcontractor or materialman any right or interest in any funds held by Landlord to reimburse Tenant for any portion of the cost of such work. Tenant shall defend, indemnify and hold harmless Landlord and its agents and representatives from and
against all claims, demands, causes of action, suits, judgments, damages and expenses (including attorneys’ fees) in any way arising from or relating to the failure by any Tenant Party to pay for any work performed, materials furnished, or
obligations incurred by or at the request of a Tenant Party. This indemnity provision shall survive termination or expiration of this Lease. 

(e) Tenant’s Security System. Tenant shall have the right, at its own expense, to install its own card-reader
security system (“Tenant’s Security System”) in the Premises, which Tenant’s Security System shall be installed as an Alteration pursuant to the terms of this Section 8, or as a Tenant Improvement
pursuant and subject to the terms of Tenant Work Letter. Tenant shall coordinate the installation and operation of Tenant’s Security System with Landlord to assure that Tenant’s Security System is compatible with the Building systems and
equipment; provided, however, in no event shall Tenant’s Security System be permitted to connect to the Building’s security systems. Tenant shall be solely responsible for monitoring and operating Tenant’s Security System. Neither
Landlord nor the Landlord Parties shall be liable for, and Landlord and the Landlord Parties are hereby released from any responsibility for any damage either to person or property sustained or incurred by Tenant in connection with the operation
and/or failure such Tenant’s Security System. 
 9. Use. Tenant shall use the Premises only for the
Permitted Use and shall comply with, and cause each other Tenant Party to comply with, all Laws relating to the Tenant’s particular use of the Premises and will not commit waste (as defined by applicable law), overload the Building’s
Structure or the Building’s Systems or subject the Premises to use that would damage the Premises. The population density within the Premises as a whole shall at no time exceed one person for each one hundred and twenty (120) rentable
square feet in the Premises. Tenant shall not conduct second or third shift operations within the Premises; however, Tenant may use the Premises after normal business hours, so long as Tenant is not generally conducting business from the Premises
after normal business hours. Notwithstanding anything in this Lease to the contrary, as between Landlord and Tenant, (a) Tenant shall bear the risk of complying with Title III of the Americans With Disabilities Act of 1990, any Laws governing
handicapped access or architectural barriers, and all rules, regulations, and guidelines promulgated under such Laws, as amended from time to time (the “Disabilities Acts”) in the Premises, and (b) Landlord shall bear the risk
of complying with the Disabilities Acts in the Common Areas of the Building, other than compliance that is necessitated by the (1) use of the Premises for other than the Permitted Use, (2) as a result of any Alterations, including any
Tenant Improvements, made by or on behalf of a Tenant Party (all of which risk and responsibility shall be borne by Tenant), or (3) as a result of any trade fixtures, furniture, equipment or other personal property to be installed in the
Premises. The Premises shall not be used for any use that is disreputable, creates extraordinary fire or other hazards, or results in an increased rate of insurance on the Building or its contents, or for the storage of any Hazardous Materials
(other than typical office supplies [e.g., photocopier toner] and then only in compliance with all Laws). Landlord shall comply with any applicable Laws relating to the physical condition of all parts of the Building outside the Premises, and the
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consistent with Section 4(b)(2) above. Tenant shall not use any substantial portion of the Premises for a “call center,” any other telemarketing use, or any
credit processing use. If, solely because of a Tenant Party’s acts (other than in connection with the express permitted use) or because Tenant vacates the Premises, the rate of insurance on the Building or its contents increases, then Tenant
shall pay to Landlord the amount of such increase within thirty (30) days after Tenant’s receipt of an invoice therefor, together with reasonable supporting evidence, and acceptance of such payment shall not waive any of Landlord’s
other rights. Tenant shall conduct its business and control each other Tenant Party so as not to create any nuisance (as defined by applicable law) or unreasonably interfere with other tenants or Landlord in its management of the Building. 

10. Assignment and Subletting. 

(a) Transfers. Except as provided in Section 10(h) below, Tenant shall not, without the prior
written consent of Landlord, (1) assign, transfer, or encumber this Lease or any estate or interest herein, whether directly, indirectly or by operation of law, (2) permit any other entity to become Tenant hereunder by merger,
consolidation, or other reorganization, (3) [deleted], (4) sublet any portion of the Premises, (5) grant any license, concession, or other right of occupancy of any portion of the Premises, or (6) permit the use of the Premises by any
parties other than Tenant (any of the events listed in clauses (1) through (6) of this Section 10(a) above being a “Transfer”). For the purpose of this Lease, any sale or transfer of Tenant’s
capital stock through any public exchange, or redemption or issuance of additional stock of any class shall not be deemed a Transfer, assignment, or subletting of the Lease or the Premises. 

(b) Consent Standards. Landlord shall not unreasonably withhold its consent to any assignment or subletting of the
Premises, provided that (1) the proposed transferee (A) is creditworthy, (B) has a good reputation in the business community, (C) will use the Premises solely for the Permitted Use (thus, excluding, without limitation, uses for
credit processing and telemarketing) and will not use the Premises in any manner that would conflict with any exclusive use agreement or other similar agreement entered into by Landlord with any other tenant of the Building or Project, (D) will
not use the Premises, Building or Project in a manner that would materially increase the pedestrian or vehicular traffic to the Premises, Building or Project, (E) is not a governmental entity, or subdivision or agency thereof or person that is
or may be entitled to claim sovereign immunity, (F) is not another occupant of the Building or Project, (G) is not a person or entity with whom Landlord is then, or has been within the six-month
period prior to the time Tenant seeks to enter into such assignment or subletting, negotiating to lease space in the Building or Project or any Affiliate of any such person or entity, and (H) has been approved by all of Landlord’s
Mortgagees (as defined below) having the right to approve the proposed transferee, and (2) payment for the Transfer is not determined in whole or in part based upon the net income or profits of the proposed transferee; otherwise, Landlord may
withhold its consent in its sole discretion. Additionally, Landlord may withhold its consent in its sole discretion to any proposed Transfer if any Event of Default by Tenant then exists. 

(c) Request for Consent. If Tenant requests Landlord’s consent to a Transfer, then, at least thirty (30) days
prior to the effective date of the proposed Transfer, Tenant shall provide Landlord with a written description of all terms and conditions of the proposed Transfer, copies of the proposed documentation, and the following information about

  

					
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the proposed transferee: name and address; reasonably satisfactory information about its business and business history; its proposed use of the Premises; banking, financial, and other credit
information; general references sufficient to enable Landlord to determine the proposed transferee’s creditworthiness and character and such additional information as Landlord may reasonably request. In connection with any request for consent
to a Transfer, Tenant shall pay, within thirty (30) days after Landlord has delivered to Tenant an invoice therefor, together with reasonable supporting documentation, Landlord’s review and processing fees and its reasonable
attorneys’ fees incurred in connection with considering any request for consent to a Transfer, in an aggregate amount not to exceed Two Thousand Five Hundred and No/100 Dollars ($2,500.00) in the aggregate, but such limitation of fees shall
only apply to the extent such Transfer is in the ordinary course of business. Landlord and Tenant hereby agree that a proposed Transfer shall not be considered “in the ordinary course of business” if such Transfer involves the review of
documentation by Landlord on more than two (2) occasions. 
 (d) Conditions to Consent. If Landlord consents to a
proposed Transfer, then the proposed transferee shall deliver to Landlord a written agreement whereby it expressly assumes Tenant’s obligations hereunder; however, any transferee of less than all of the space in the Premises shall be liable
only for obligations under this Lease that are properly allocable to the space subject to the Transfer for the period of the Transfer. No Transfer shall release Tenant from its obligations under this Lease, but rather Tenant and its transferee shall
be jointly and severally liable therefor; provided, however, that if Tenant is nonetheless deemed to be a surety by remaining liable hereunder, Tenant hereby waives all applicable suretyship defenses. Landlord’s consent to any Transfer shall
not waive Landlord’s rights as to any subsequent Transfers. If an Event of Default occurs while the Premises or any part thereof are subject to a Transfer, then Landlord, in addition to its other remedies, may collect directly from such
transferee all rents becoming due to Tenant and apply such rents against Rent. Tenant authorizes its transferees to make payments of rent directly to Landlord upon receipt of notice from Landlord to do so following the occurrence of an Event of
Default hereunder. Tenant shall pay for the cost of any demising walls or other improvements necessitated by a proposed subletting or assignment. 

(e) Attornment by Subtenants. Each sublease by Tenant hereunder shall be subject and subordinate to this Lease and to the
matters to which this Lease is or shall be subordinate, and each subtenant by entering into a sublease is deemed to have agreed that in the event of termination, reentry or dispossession by Landlord under this Lease, Landlord may, at its option,
take over all of the right, title and interest of Tenant, as sublandlord, under such sublease, and such subtenant shall, at Landlord’s option, attorn to Landlord pursuant to the then-executory provisions of such sublease, except that Landlord
shall not be (1) liable for any previous act or omission of Tenant under such sublease, (2) subject to any counterclaim, offset or defense that such subtenant might have against Tenant, (3) bound by any previous modification of such
sublease not approved by Landlord or by any rent or additional rent or advance rent which such subtenant might have paid for more than the current month to Tenant, and all such rent shall remain due and owing, notwithstanding such advance payment,
(4) bound by any security or advance rental deposit made by such subtenant that is not delivered or paid over to Landlord and with respect to which such subtenant shall look solely to Tenant for refund or reimbursement, or (5) obligated to
perform any work in the subleased space or to prepare it for occupancy, and in connection with such attornment, the subtenant shall execute and deliver to Landlord any 

  

					
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instruments Landlord may reasonably request to evidence and confirm such attornment. Each subtenant or licensee of Tenant shall be deemed, automatically upon and as a condition of its occupying
or using the Premises or any part thereof, to have agreed to be bound by the terms and conditions set forth in this Section 10(e). The provisions of this Section 10(e) shall be self-operative, and no further
instrument shall be required to give effect to this provision. 
 (f) Cancellation. Except in connection with Permitted
Transfers, Landlord may, within thirty (30) days after submission of Tenant’s written request for Landlord’s consent to an assignment or subletting, cancel this Lease as to the portion of the Premises proposed to be sublet or assigned
as of the date the proposed Transfer is to be effective. If Landlord cancels this Lease as to any portion of the Premises, then this Lease shall cease for such portion of the Premises and Tenant shall pay to Landlord all Rent accrued through the
cancellation date relating to the portion of the Premises covered by the proposed Transfer. Thereafter, Landlord may lease such portion of the Premises to the prospective transferee (or to any other person) without liability to Tenant.
Notwithstanding the foregoing, Tenant may, within three (3) days after receipt of such cancelation notice from Landlord, rescind its request for Landlord’s consent to an assignment or subletting, in which case, Landlord’s cancelation
notice shall be deemed null and void. 
 (g) Additional Compensation. Except in connection with Permitted Transfers, at
Landlord’s option, Tenant shall pay to Landlord, within thirty (30) days after receipt thereof, fifty percent (50%) of the excess of (1) all compensation received by Tenant for a Transfer less the actual
out-of-pocket costs reasonably incurred by Tenant with unaffiliated third parties (i.e., brokerage commissions, attorney’s fees incurred in connection with the
negotiation of such Transfer, and tenant finish work) and other economic concessions or services provided to the transferee, in connection with such Transfer over (2) the Rent allocable to the portion of the Premises covered thereby. 

(h) Permitted Transfers. Notwithstanding Section 10(a) above, Tenant may Transfer all or part of
its interest in this Lease or all or part of the Premises (each a “Permitted Transfer”) to the following types of entities (each a “Permitted Transferee”) without the written consent of Landlord so long as
(1) Tenant’s obligations hereunder are assumed by such entity; and (2) the Tangible Net Worth (as defined below) of such entity is not less than $10,000,000.00: 

(1) an Affiliate of Tenant; 

(2) any corporation, limited partnership, limited liability partnership, limited liability company or other business entity in which or with
which Tenant, or its corporate successors or assigns, is merged or consolidated, in accordance with applicable statutory provisions governing merger and consolidation of business entities; 

(3) any corporation, limited partnership, limited liability partnership, limited liability company or other business entity acquiring all or
substantially all of Tenant’s assets, stock or other ownership interest; or 

  

					
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 (4) Tenant shall promptly notify Landlord of any such Permitted Transfer. Tenant shall remain
liable for the performance of all of the obligations of Tenant (unless Tenant no longer exists because of a merger, consolidation, or acquisition) hereunder, and the Permitted Transferee shall expressly assume in a writing for the benefit of
Landlord in a commercially reasonable instrument executed and delivered to Landlord at least ten (10) days prior to the effective date of the assignment, all of the obligations of Tenant hereunder. Additionally, the Permitted Transferee shall
comply with all of the terms and conditions of this Lease, including the Permitted Use, and the use of the Premises by the Permitted Transferee may not violate any other agreements affecting the Premises, the Building or the Project. No later than
thirty (30) days after the effective date of any Permitted Transfer, Tenant agrees to furnish Landlord with (i) copies of the instrument effecting any of the foregoing Transfers, (ii) documentation establishing Tenant’s satisfaction
of the requirements set forth above applicable to any such Transfer, and (iii) evidence of insurance as required under this Lease with respect to the Permitted Transferee. The occurrence of a Permitted Transfer shall not waive Landlord’s
rights as to any subsequent Transfers. “Tangible Net Worth” means the excess of total assets over total liabilities, in each case as determined in accordance with generally accepted accounting principles consistently applied
(“GAAP”), excluding, however, from the determination of total assets all assets that would be classified as intangible assets under GAAP, including goodwill, licenses, patents, trademarks, trade names, copyrights, and franchises.
Any subsequent Transfer by a Permitted Transferee shall be subject to the terms of this Section 10. 
 11.
Insurance; Waivers; Subrogation; Indemnity. 
 (a) Tenant’s Insurance. Effective as of the earlier of
(1) the date Tenant first enters upon or occupies the Premises, or (2) the Commencement Date, and continuing throughout the Term, Tenant shall maintain the following insurance policies: (A) commercial general liability insurance on
the current ISO CG 00 01 12 04 occurrence form or equivalent acceptable to Landlord with limits not less than Three Million Dollars ($3,000,000.00) per occurrence, Three Million Dollars ($3,000,000.00) personal injury and advertising injury, Three
Million Dollars ($3,000,000.00) products-completed operations aggregate and Three Million Dollars ($3,000,000.00) general aggregate (which shall apply separately to the Premises) with defense costs provided in addition to policy limits, insuring
Tenant, and listing as additional insureds Landlord, Landlord’s property management company, Landlord’s asset management company and any of Landlord’s Mortgagees, and such other persons and entities as Landlord may from time to time
designate (collectively, the “Additional Insureds”) thereunder and under Tenant’s commercial excess or umbrella liability policy, if any, using ISO additional insured endorsement CG 20 11 (or a substitute acceptable to Landlord
providing equivalent coverage) against all liability for personal injury, bodily injury (including mental anguish and death) or property damage or destruction (including loss of use thereof) arising from the use and occupancy of the Premises, the
Building and all areas appurtenant thereto, including the Parking Facility and (without implying any consent by Landlord to the installation thereof) the installation, operation, maintenance, repair or removal of Tenant’s Off Premises
Equipment, all such insurance with a commercially reasonable deductible and/or self-insured retention (paid for solely by Tenant) if Tenant so chooses, (B) primary “special form” perils property damage insurance under ISO special
clauses of loss form (ISO form CP 10 30) covering the full value of all alterations, additions and improvements and betterments in the Premises, including the Tenant Improvements and other Alterations, listing Landlord and each of Landlord’s
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additional loss payees as their interests may appear, (C) primary “special form” perils property damage insurance under ISO special clauses of loss form (ISO form CP 10 30)
covering the full value of all furniture, trade fixtures, electronic data and media, business records, and personal property (including property of Tenant or others) in the Premises or otherwise placed in the Project by or on behalf of a Tenant
Party (including Tenant’s Off Premises Equipment), without deduction for depreciation, (D) workers’ compensation insurance as required by the State of Washington, together with employers’ liability insurance of at least One
Million Dollars ($1,000,000.00) for each accident for bodily injury by accident, One Million Dollars ($1,000,000.00) each employee for bodily injury by disease, and One Million Dollars ($1,000,000.00) policy limit for bodily injury by disease,
(E) business income with extra expense insurance (ISO form CP 00 30, or equivalent acceptable to Landlord) in an amount reasonably acceptable to Landlord, and (F) comprehensive automobile insurance, and if necessary, commercial umbrella
insurance, with a limit of not less than Three Million Dollars ($3,000,000.00) each accident, which automobile insurance shall cover liability arising out of any automobile (including owned, hired and
non-owned automobiles), insuring the Additional Insureds as additional insureds thereunder. All of Tenant’s insurance shall be primary insurance as to all claims occurring within or about the Premises and
provide that any insurance carried by any of the Additional Insureds is excess over, and non-contributing with, any insurance of Tenant with respect to claims occurring within or about the Premises. Tenant
shall furnish to Landlord certificates of such insurance at least ten (10) days prior to the earlier of the Commencement Date or the date Tenant first enters upon or occupies the Premises, and at least fifteen (15) days prior to each
renewal of said insurance (and such liability insurance certificates or other evidence shall include an endorsement or policy excerpt showing that Tenant’s coverage is primary and non-contributing with
respect to any insurance afforded to any of the Additional Insureds). Tenant shall endeavor to notify Landlord and each of Landlord’s Mortgagees at least forty-five (45) days before cancellation or material reduction of any such insurance
policies (ten [10] days in the event of nonpayment of premiums). Tenant shall carry and maintain during the Term, at its expense such increased amounts of insurance required to be carried under this Section 11(a), and such
other types and amounts of insurance covering the Premises and Tenant’s operation therein, as may be reasonably requested by Landlord from time to time, but not in excess of the amounts and types of insurance then being required by landlords of
the Comparison Buildings. If the use or occupancy of the Premises includes any activity or matter that is or may be excluded from coverage under a commercial general liability policy (e.g., the sale, service or consumption of alcoholic beverages),
Tenant shall obtain such endorsements to the commercial general liability policy or otherwise obtain insurance to insure all liability arising from such activity or matter in such amounts as Landlord may reasonably require. All such insurance
policies shall be in form, and issued by companies with an A.M. Best rating of A-VII or better. If Tenant fails to comply with the foregoing insurance requirements or to deliver to Landlord the certificates or
evidence of coverage required herein within five (5) Business Days after Landlord’s written request, Landlord, in addition to any other remedy available pursuant to this Lease or otherwise, may, but shall not be obligated to, obtain such
insurance and Tenant shall pay to Landlord within thirty (30) days after Tenant’s receipt of an invoice from Landlord, together with reasonable supporting evidence, the premium costs thereof, plus an administrative fee of five percent (5%)
of such cost. Landlord shall have no interest in any insurance proceeds Tenant receives for Tenant’s personal property. During the Term, Tenant shall use the proceeds from any such policy or policies of insurance for the repair or replacement
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property, subject to the terms set forth in Section 15(d), below. Landlord shall have no interest in any insurance proceeds Tenant receives for Tenant’s personal property. Tenant’s
policies shall not be contributing with or in excess of any coverage which Landlord shall carry on the Building. 
 (b) Landlord’s
Insurance. Throughout the Term, Landlord shall maintain, as a minimum, the following insurance policies from an insurance company rated at least A-VII or better in Best’s Insurance Reports:
(1) “special form” (1) property insurance for at least ninety percent (90%) of the Building’s replacement value (excluding property required to be insured by Tenant and the costs of excavation, foundations, underground utilities and
footings), less a commercially reasonable deductible and/or self-insured retention if Landlord so chooses, and (2) commercial general liability insurance in an amount of not less than Three Million Dollars ($3,000,000.00) general aggregate for
damages because of personal injury, bodily injury or death, or property damages or destruction (including loss of use thereof). Landlord may, but is not obligated to, maintain such other insurance and additional coverages as it may deem appropriate
or as required by any of Landlord’s Mortgagees. The cost of all insurance carried by Landlord with respect to the Project shall be included in Operating Costs, and any deductibles shall also be included in Operating Costs. The foregoing
insurance policies and any other insurance carried by Landlord shall be for the sole benefit of Landlord and under Landlord’s sole control, and Tenant shall have no right or claim to any proceeds thereof or any other rights thereunder. 

(c) No Subrogation; Waiver of Property Claims. The following waivers in this Section 11(c) are
intended to be cumulative, rather than mutually exclusive. 
 (1) Intentionally Omitted. 

(2) Property Insurance Policies. Each of Landlord and Tenant waives any claim it might have against the other (and in the case of
Tenant’s waiver, against the other Additional Insureds) for any damage to, or theft, destruction, loss, or loss of use of, any property, to the extent the same is insured against under any property insurance policies of the types described in
Section 11(a) above that cover the Project, the Premises, Landlord’s or Tenant’s fixtures, personal property, leasehold improvements, or business (or if the insurance required under this Lease had been carried,
would have been insured against), regardless of whether the negligence of the other party caused such loss or damage. Additionally, Tenant waives any claim it may have against the Additional Insureds for any loss to the extent such loss or damage is
caused by a terrorist act. Each party shall cause its insurance carrier to endorse all applicable policies waiving the carrier’s rights of recovery under subrogation or otherwise against the other party as provided hereinabove. For the purposes
of this Section 11(c)(2). any deductible with respect to a party’s property insurance shall be deemed covered by, and recoverable by such party under, valid and collectible policies of insurance. 

(d) Waiver. Except to the extent resulting from the negligence or willful misconduct of Landlord or any Landlord Parties,
and to the extent not prohibited by applicable Law, Tenant hereby assumes all risk of damage to property (subject to the waiver as subrogation in Section 11(c)(2), above) or injury to persons in, upon or about the Premises from any cause
whatsoever and agrees that Landlord and the Landlord Parties shall not be liable for, and are 

  

					
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hereby released from any responsibility for, any damage either to person or property or resulting from the loss of use thereof, which damage is sustained by Tenant or by other persons claiming
through Tenant. Nothing in this Section 11(d) shall limit the provisions of Section 11(c) above or Section 26(b) below. 
 (e)
Indemnities. Subject to the limitations set forth in this Section 11(e) below, Tenant shall defend, protect, indemnify, and hold harmless the Landlord Parties from and against all claims, losses,
demands, liabilities, actions, penalties, judgments, damages, costs and expenses (including reasonable attorneys’ fees) (collectively, “Claims”) suffered or imposed upon or against any Landlord Party arising from or in
connection with (1) the negligence or willful misconduct of Tenant or any person claiming by, through or under any Tenant Party, (2) any occurrence in the Premises, or (3) the installation, operation, maintenance, repair or removal of
any property of any Tenant Party located in or about the Project, including Tenant’s Off-Premises Equipment, if any, and (4) any breach by Tenant of any representation, covenant or other term
contained in this Lease, whether occurring before, during or after the expiration of the Term. The foregoing indemnity is intended to apply regardless of any active or passive negligence or fault of the Landlord Parties, even when Landlord or its
representatives and agents are jointly, comparatively, contributively, or concurrently negligent with Tenant, and regardless of whether liability without fault or strict liability may be imposed upon the Landlord Parties; however, with respect to
Landlord or any Landlord Party, Tenant’s obligations hereunder shall not apply (i) to the extent any Claim arises from the negligence or willful misconduct of any Landlord Party and is not for any reason (other than Tenant’s failure
to carry the insurance required under Section 11(a) above) paid for by the insurance required to be carried by Tenant hereunder, or (ii) to the extent such obligations are prohibited by applicable Law. Notwithstanding
the foregoing, in the event of the concurrent negligence of any of the Tenant Parties on the one hand and that of any of the Landlord Parties on the other hand, which concurrent negligence results in injury or damage to persons or property and
relates to the construction, alteration, repair, addition to, subtraction from, improvement to or maintenance of the Premises, Common Areas or any other portion of the Project, Tenant’s obligation to indemnify the Landlord Parties as set forth
in this Section 11(e) shall be limited to the extent of Tenant’s negligence, and that of the Tenant Parties, including Tenant’s proportional share of costs, attorneys’ fees, and expenses incurred in
connection with any Claims arising from such injury or damage. Landlord shall defend, protect, indemnify, and hold harmless Tenant and Tenant’s agents, officers, directors, employees, and contractors (collectively, the “Tenant
Parties”) from and against all Claims incurred by or on behalf of any person, entity, or governmental authority occasioned by or arising out of: (a) injuries occurring in the Common Areas or any other portion of the Building outside
the Premises to the extent the same is covered by insurance carried by Landlord under the terms of this Lease the cost of which is included in Operating Costs; (b) any intentional conduct or negligence of Landlord or Landlord’s agents,
employees, or independent contractors; (c) any breach by Landlord of any representation, covenant or other term contained in this Lease, whether occurring before, during or after the expiration of the Term. Landlord’s indemnity shall not
apply to the extent of the negligence or willful misconduct of Tenant or any person claiming by, through or under any Tenant Party. This indemnity shall survive termination of this Lease only as to claims arising out of events that occur prior to
termination of the Lease. The indemnities set forth in this Lease shall survive termination or expiration of this Lease and shall not terminate or be waived, diminished or affected in any manner by any abatement or apportionment of Rent under any
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Lease. If any proceeding is filed for which indemnity is required hereunder, the indemnifying party agrees, upon request therefor, to defend the indemnified party in such proceeding at its sole
cost utilizing counsel reasonably satisfactory to the indemnified party. The indemnities set forth herein are intended to specifically cover actions brought by the indemnifying party’s own employees. Such indemnities are specifically and
expressly intended to constitute waivers by the indemnifying party of its immunity, if any, under Washington’s Industrial Insurance Act (Title 51 RCW, as amended, and under any substitute or replacement statute), to the extent necessary to
provide the other party with a full and complete indemnity from claims made by the indemnifying party and its employees, to the extent provided herein. This waiver and agreement was specifically negotiated by Landlord and Tenant and is solely for
the benefit of Landlord and Tenant and their successors and assigns and is not intended as a waiver of Tenant’s rights of immunity under said industrial insurance for any other purpose. 

12. Subordination; Attornment; Notice to Landlord’s Mortgagee. 

(a) Subordination. This Lease shall be subordinate to any deed of trust, mortgage, or other security instrument (each, a
“Mortgage”) that now or hereafter covers all or any part of the Premises (the mortgagee under any such Mortgage, beneficiary under any such deed of trust or other security instrument is referred to herein as a
“Landlord’s Mortgagee”), provided that upon any foreclosure of any such Mortgage or delivery of a deed in lieu thereof, Landlord’s successor shall agree to accept this Lease and not disturb Tenant’s occupancy, so long
as Tenant timely pays the Rent and observes and performs the terms, covenants and provisions of this Lease to be observed or performed by Tenant. Any Landlord’s Mortgagee may elect, at any time, unilaterally, to make this Lease superior to its
Mortgage or other interest in the Premises by so notifying Tenant in writing. The provisions of this Section 12(a) shall be self-operative and no further instrument of subordination shall be required; however, in
confirmation of such subordination, Tenant shall execute and return to Landlord (or such other person designated by Landlord) within ten (10) business days after request therefor such reasonable documentation, in recordable form if required, as
a Landlord’s Mortgagee may reasonably request to evidence the subordination of this Lease to such Landlord’s Mortgagee’s Mortgage (including a subordination, non-disturbance and attornment
agreement) or, if the Landlord’s Mortgagee so elects, the subordination of such Landlord’s Mortgagee’s Mortgage to this Lease. 

(b) Attornment. Tenant shall attorn to any person succeeding to Landlord’s interest in the Premises, whether by
purchase, foreclosure, deed in lieu of foreclosure, power of sale, termination of lease, or otherwise, upon such person’s request, and shall execute such agreements confirming such attornment as such person may reasonably request. 

(c) Notice to Landlord’s Mortgagee. Tenant shall not seek to enforce any remedy it may have for any default on the
part of Landlord without first giving written notice by certified mail, return receipt requested, specifying the default in reasonable detail, to any Landlord’s Mortgagee whose address has been given to Tenant, and affording such
Landlord’s Mortgagee a reasonable opportunity to perform Landlord’s obligations hereunder. 

  

					
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 (d) Landlord’s Mortgagee’s Protection Provisions. If a
Landlord’s Mortgagee or any successor in interest thereto shall succeed to the interest of Landlord under this Lease, neither such Landlord’s Mortgagee nor any such successor in interest shall be: (1) liable for any act or omission of
any prior lessor (including Landlord), other than with respect to defaults that continue after Landlord’s Mortgagee or successor-in-interest has succeeded to the
interest of Landlord hereunder (and then only with respect to the period of time following such succession); (2) bound by, or subject to any offset rights with respect to, any Rent that Tenant might have paid for more than the current month to any
prior lessor (including Landlord), and all such Rent shall remain due and owing, notwithstanding such advance payment; (3) bound by any Security Deposit or advance rental deposit made by Tenant that is not delivered or paid over to such
Landlord’s Mortgagee or successor in interest and with respect to which Tenant shall look solely to Landlord for refund or reimbursement; (4) bound by any termination, amendment or modification of this Lease made without such
Landlord’s Mortgagee’s consent and written approval, except for the express extension, termination and expansion rights set forth in Exhibits I, J, and K, respectively, and those terminations, amendments and modifications permitted to be
made by Landlord without such Landlord’s Mortgagee’s consent pursuant to the terms of the loan and/or lease documents between Landlord and such Landlord’s Mortgagee; (5) subject to the defenses or counterclaims that Tenant might
have against any prior lessor (including Landlord); (6) subject to the credits or offsets that Tenant might have against any prior lessor (including Landlord) except for those offset rights (A) that do not pertain to any Rent that Tenant might
have paid for more than the current month to any prior lessor (including Landlord), (B) that are expressly provided in this Lease, (C) that relate to periods of time following the acquisition of the Building by such Landlord’s Mortgagee or
successor in interest, and (D) for which Tenant has provided written notice to such Landlord’s Mortgagee and provided such Landlord’s Mortgagee a reasonable opportunity (up to thirty (30) days) to cure the event giving rise to
such offset event; and (7) bound by any covenant to perform (including any covenant to complete) any renovation or construction in the Premises or to pay any sums to Tenant in connection therewith, in either case arising or accruing prior to
the date of the conveyance of Landlord’s interest in this Lease. Neither a Landlord’s Mortgagee nor any successor in interest thereto shall have any liability or responsibility under or pursuant to the terms of this Lease or otherwise
prior to the date such Landlord’s Mortgagee or successor in interest succeeds to the interest of Landlord under this Lease or after such Landlord’s Mortgagee or successor in interest ceases to own an interest in the Project. Nothing in
this Lease shall be construed to require a Landlord’s Mortgagee or successor in interest thereto to see to the application of the proceeds of any loan, and Tenant’s agreements set forth herein shall not be impaired on account of any
modification of the documents evidencing and securing any loan. 
 13. Rules and Regulations. Tenant shall
comply with the rules and regulations of the Project that are attached hereto as Exhibit C. Landlord may, from time to time, reasonably change such rules and regulations for the safety, care, or cleanliness of the Project and related
facilities, provided that such changes are applicable to all tenants of the Project, will not unreasonably interfere with Tenant’s use of the Premises, and are enforced by Landlord in a nondiscriminatory manner. Tenant shall be responsible for
the compliance with such rules and regulations by each Tenant Party (and any modification thereto of which Tenant has received notice). No such rules shall materially enlarge Tenant’s obligations under the Lease or materially limit
Tenant’s rights and remedies under the Lease, including (without limitation) Tenant’s use of the Premises. The Lease provisions shall control and supersede any contradictory or inconsistent provisions contained in the rules and
regulations. 

  

					
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 14. Condemnation. 

(a) Total Taking. If the entire Building or Premises are taken by right of eminent domain or conveyed in lieu
thereof (a “Taking”), this Lease shall terminate as of the date of the Taking. 
 (b) Partial Taking –
Tenant’s Rights. If any part of the Building becomes subject to a Taking and such Taking will prevent Tenant from conducting on a permanent basis its business in the Premises in a manner reasonably comparable to that conducted
immediately before such Taking, then Tenant may terminate this Lease as of the date of such Taking by giving notice to Landlord within thirty (30) days after the Taking, and Basic Rent and Additional Rent shall be apportioned as of the date of
such Taking. If Tenant does not terminate this Lease, then Basic Rent and Additional Rent shall be abated on a reasonable basis as to that portion of the Premises rendered untenantable by the Taking. If this Lease is not terminated, then Landlord
agrees, at Landlord’s sole cost, to restore the Premises as soon as reasonably possible to a complete unit consistent with the condition of the Premises existing prior to the condemnation. 

(c) Partial Taking – Landlord’s Rights. If any material portion, but less than all, of the Building becomes
subject to a Taking, or if Landlord is required to pay any of the proceeds arising from a Taking to a Landlord’s Mortgagee, then Landlord may terminate this Lease by delivering notice thereof to Tenant within thirty (30) days after such
Taking, and Basic Rent and Additional Rent shall be apportioned as of the date of such Taking. If Landlord does not so terminate this Lease, then this Lease will continue, but if any portion of the Premises has been taken, Rent shall abate as
provided in the last sentence of Section 14(b) above. 
 (d) Temporary Taking. If all or any
portion of the Premises becomes subject to a Taking for a limited period of time, this Lease shall remain in full force and effect and Tenant shall continue to perform all of the terms, conditions and covenants of this Lease, including the payment
of Basic Rent, Additional Rent and all other amounts required hereunder. If any such temporary Taking terminates prior to the expiration of the Term, Tenant shall restore the Premises as nearly as possible to the condition prior to such temporary
Taking, at Tenant’s sole cost and expense. Landlord shall be entitled to receive the entire award for any such temporary Taking, except that Tenant shall be entitled to receive the portion of such award that (1) compensates Tenant for its
loss of use of the Premises within the Term and (2) reimburses Tenant for the reasonable out-of-pocket costs actually incurred by Tenant to restore the Premises as
required by this Section 14(d). 
 (e) Award. If any Taking occurs, then Landlord shall
receive the entire award or other compensation for the Land, the Building, and other improvements taken; however, Tenant may separately pursue a claim (to the extent it will not reduce Landlord’s award) against the condemnor for the value of
Tenant’s personal property that Tenant is entitled to remove under this Lease, moving costs, loss of business, and other claims it may have. 

15. Fire or Other Casualty. 

(a) Repair Estimate. If the Premises or the Building are damaged by fire or other casualty (a
“Casualty”), Landlord shall, within ninety (90) days after such Casualty, deliver to Tenant a good faith estimate (the “Damage Notice”) of the time needed to repair the damage caused by such Casualty. 

  

					
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 (b) Tenant’s Rights. If a material portion of the Premises is damaged
by Casualty such that Tenant is prevented from conducting its business in the Premises in a manner reasonably comparable to that conducted immediately prior to such Casualty and Landlord estimates that the damage caused by such Casualty cannot be
repaired within one hundred eighty (180) days after the commencement of repairs (the “Repair Period”), then Tenant may terminate this Lease by delivering written notice to Landlord of its election to terminate within thirty
(30) days after the Damage Notice has been delivered to Tenant. 
 (c) Landlord’s Rights. If a Casualty
damages the Premises or a material portion of the Building and (1) Landlord estimates that the damage to the Premises cannot be repaired within the Repair Period; (2) the damage to the Premises exceeds fifty percent (50%) of the
replacement cost thereof (excluding foundations and footings), as estimated by Landlord, and such damage occurs during the last two (2) years of the Term; (3) regardless of the extent of damage to the Premises, the damage is not fully
covered by Landlord’s insurance policies or Landlord makes a good faith determination that restoring the Building would be uneconomical; or (4) Landlord is required to pay any insurance proceeds arising out of the Casualty to a
Landlord’s Mortgagee, then Landlord may terminate this Lease by giving written notice of its election to terminate within thirty (30) days after the Damage Notice has been delivered to Tenant. 

(d) Repair Obligation. If neither party elects to terminate this Lease following a Casualty, then Landlord shall, within a
reasonable time after such Casualty, begin to repair the Premises and shall proceed with reasonable diligence to restore the Premises to substantially the same condition as had existed immediately prior to such Casualty; provided, however, that
Landlord shall not be required to repair or replace any alterations, additions, improvements or betterments within the Premises, including any Tenant Improvements or other Alterations (which shall be promptly and with due diligence repaired and
restored by Tenant at Tenant’s sole cost and expense), or any furniture, equipment, trade fixtures or personal property of Tenant or others in the Premises or the Building. If this Lease is terminated under the provisions of this
Section 15, Landlord shall be entitled to the full proceeds of the insurance policies providing coverage for all alterations, additions, improvements and betterments in the Premises, including the Tenant Improvements and
all other Alterations (and, if Tenant has failed to maintain insurance on such items as required by this Lease, Tenant shall pay Landlord an amount equal to the proceeds Landlord would have received had Tenant maintained insurance on such items as
required by this Lease). 
 (e) Abatement of Rent. If the Premises are damaged by Casualty, Rent for the portion of the
Premises rendered untenantable by the damage shall be abated in the proportion of the rentable square footage of the Premises made untenantable thereby to the total rentable square footage of the Premises from the date of damage until the completion
of Landlord’s repairs (or until the date of termination of this Lease by Landlord or Tenant as provided above, as the case may be) unless a Tenant Party caused such damage, in which case Tenant shall continue to pay Rent without abatement. 

  

					
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 16. Personal Property Taxes. Tenant shall be liable for all taxes
levied or assessed against personal property, furniture, or fixtures placed by Tenant in the Premises or in or on the Building or Project. If any taxes for which Tenant is liable are levied or assessed against Landlord or Landlord’s property
and Landlord elects to pay the same, then Tenant shall pay to Landlord, within thirty (30) days following request therefor, the part of such taxes for which Tenant is primarily liable hereunder; however, Landlord shall not pay such amount if
Tenant notifies Landlord that it will contest the validity or amount of such taxes before Landlord makes such payment, and thereafter diligently proceeds with such contest in accordance with Law and if the nonpayment thereof does not pose a threat
of loss or seizure of the Project or interest of Landlord therein or impose any fee or penalty against Landlord. 
 17. Events of
Default. Each of the following occurrences shall be an “Event of Default”: 
 (a) Payment Default.
Tenant’s failure to pay Rent within five (5) days after Landlord has delivered notice to Tenant that the same is due; however, an Event of Default shall occur hereunder without any obligation of Landlord to give any notice if Tenant
fails to pay Rent when due and, during the twelve (12)-month interval preceding such failure, Landlord has given Tenant notice of failure to pay Rent on two (2) or more occasions; 

(b) Abandonment. Tenant abandons the Premises or any substantial portion thereof; 

(c) Subordination. Tenant fails to provide any documentation evidencing subordination of this Lease after request therefor
pursuant to Section 12(a) above and such failure continues for five (5) days after Tenant’s receipt of a second request for such documentation from Landlord’s or Landlord’s Mortgagees; 

(d) Estoppel. Tenant fails to provide any estoppel certificate requested by Landlord pursuant to
Section 26(e) below and such failure continues for five (5) days after Tenant’s receipt of Landlord’s second request for such estoppel certificate; 

(e) Insurance. Tenant fails to procure, maintain and deliver to Landlord evidence of the insurance policies and coverages
as required under Section 11(a) above if such failure continues for five (5) Business Days after Tenant’s receipt of Landlord’s notice of such failure; 

(f) Mechanic’s Liens. Tenant fails to pay and release of record, or diligently contest and bond around, any
mechanic’s lien filed against the Premises or the Project for any work performed, materials furnished, or obligation incurred by or at the request of Tenant, within the time and in the manner required by Section 8(d)
above; 
 (g) Misrepresentation. Any material misrepresentation herein, or material misrepresentation or omission in any
financial statements or other materials provided by Tenant or any guarantor of Tenant’s obligations hereunder in connection with negotiating this Lease or in connection with any Transfer under Section 10 above; 

  

					
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 (h) OFAC/FCPA Representation. Tenant is or becomes in breach of
Section 26(w) below; 
 (i) Other Defaults. Except as otherwise provided in this
Section 17 or elsewhere in this Lease, Tenant’s failure to perform, comply with, or observe any other agreement or obligation of Tenant under this Lease and the continuance of such failure for a period of more than
thirty (30) days after Landlord has delivered to Tenant notice thereof or such shorter period expressly provided elsewhere in this Lease (provided, if the nature of Tenant’s failure is such that more time is reasonably required in order to
cure, an Event of Default shall not be deemed to have occurred and such failure may be cured if Tenant commences to cure such failure within such period and thereafter reasonably and diligently pursues the cure thereof to completion, such period in
no event to exceed ninety (90) days from the date of Landlord’s original default notice); and 
 (j) Insolvency.
The filing of a petition by or against Tenant (the term “Tenant” shall include, for the purpose of this Section 17(j), any guarantor of Tenant’s obligations hereunder) (1) in any bankruptcy or
other insolvency proceeding; (2) seeking any relief under any state or federal debtor relief law; (3) for the appointment of a liquidator or receiver for all or substantially all of Tenant’s property or for Tenant’s interest in
this Lease; (4) for the reorganization or modification of Tenant’s capital structure; or (5) in any assignment for the benefit of creditors proceeding; however, if such a petition is filed against Tenant, then such filing shall not be an
Event of Default unless Tenant fails to have the proceedings initiated by such petition dismissed within ninety (90) days after the filing thereof. 

18. Remedies. Upon any Event of Default, Landlord may, in addition to all other rights and remedies afforded
Landlord hereunder or by law or equity, take any one or more of the following actions in accordance with procedures under applicable law: 

(a) Termination of Lease. Terminate this Lease by giving Tenant notice thereof, in which event Tenant shall pay to
Landlord the sum of (1) all Rent accrued hereunder through the date of termination, (2) all amounts due under Section 19(a) below, and (3) an amount equal to (A) the total Rent that Tenant would have
been required to pay for the remainder of the Term discounted to present value at a per annum rate equal to the “Prime Rate” as published on the date this Lease is terminated by The Wall Street Journal, Northwest Edition, in
its listing of “Money Rates” plus two percent (2%), minus (B) the then-present fair rental value of the Premises for such period, similarly discounted. 

(b) Termination of Possession. Terminate Tenant’s right to possess the Premises without terminating this Lease by
giving notice thereof to Tenant, in which event Tenant shall pay to Landlord (1) all Rent and other amounts accrued hereunder to the date of termination of possession, (2) all amounts due from time to time under
Section 19(a) below, and (3) all Rent and other net sums required hereunder to be paid by Tenant during the remainder of the Term, diminished by any net sums thereafter received by Landlord through reletting the
Premises during such period, after deducting all reasonable costs incurred by Landlord in reletting the Premises. If Landlord elects to proceed under this Section 18(b), Landlord may, after ten (10) days notice to
Tenant, remove all of Tenant’s property from the Premises and store the same in a public warehouse or elsewhere at the cost of, and for the account of, Tenant, 

  

					
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without becoming guilty of trespass, or liable for any loss or damage that may be occasioned thereby. Landlord shall use commercially reasonable efforts to relet the Premises on such terms as
Landlord in its sole discretion may determine (including a lease term different from the Term, rental concessions, and alterations to, and improvement of, the Premises); however, Landlord shall not be obligated to relet the Premises before leasing
other portions of the Building or Project and Landlord shall not be obligated to accept any prospective tenant proposed by Tenant unless such proposed tenant meets all of Landlord’s then-existing leasing criteria. Landlord shall not be liable
for, nor shall Tenant’s obligations hereunder be diminished because of, Landlord’s failure to relet the Premises or to collect rent due for such reletting. Tenant shall not be entitled to the excess of any consideration obtained by
reletting over the Rent due hereunder. Reentry by Landlord in the Premises shall not affect Tenant’s obligations hereunder for the unexpired Term; rather, Landlord may, from time to time, bring an action against Tenant to collect amounts due by
Tenant, without the necessity of Landlord’s waiting until the expiration of the Term. Unless Landlord delivers written notice to Tenant expressly stating that it has elected to terminate this Lease, all actions taken by Landlord to dispossess
or exclude Tenant from the Premises shall be deemed to be taken under this Section 18(b). If Landlord elects to proceed under this Section 18(b), it may at any time elect to terminate this Lease
under Section 18(a) above. 
 (c) Perform Acts on Behalf of Tenant. Perform any act Tenant is
obligated to perform under the terms of this Lease (and enter upon the Premises in connection therewith if necessary) in Tenant’s name and on Tenant’s behalf, without being liable for any claim for damages therefor, and Tenant shall
reimburse Landlord on demand for any reasonable, actual, out of pocket expenses which Landlord may incur in thus effecting compliance with Tenant’s obligations under this Lease (including collection costs and legal expenses), plus interest
thereon at the Default Rate. 
 In connection with any remedy exercised by Landlord, Landlord shall, to the extent required by applicable Law, mitigate
damages. 
 19. Payment by Tenant; Non-Waiver; Cumulative Remedies. 

(a) Payment by Tenant. After Lease termination by Landlord after any Event of Default, Tenant shall pay to Landlord all
reasonable, actual, out of pocket costs incurred by Landlord (including court costs and expenses) in (1) obtaining possession of the Premises, (2) removing and storing Tenant’s or any other occupant’s property, and (3) repairing,
restoring, altering, remodeling, or otherwise putting the Premises into the condition required under this Lease, and in addition, upon any Event of Default, Tenant shall pay to Landlord all reasonable actual out of pocket costs incurred by Landlord
in (A) acceptable to a new tenant, (4) if Tenant is dispossessed of the Premises and this Lease is not terminated, reletting all or any part of the Premises (including brokerage commissions, cost of tenant finish work, and other costs
incidental to such reletting), (B) performing Tenant’s obligations that Tenant failed to perform, and (C) enforcing, or advising Landlord of, its rights, remedies, and recourses arising out of the default. To the full extent permitted by
Law, Landlord and Tenant agree that the federal and state courts of the State of Washington shall have exclusive jurisdiction over any matter relating to or arising from this Lease and the parties’ rights and obligations under this Lease. 

  

					
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 (b) No Waiver. Landlord’s acceptance of Rent following an Event of
Default shall not waive Landlord’s rights regarding such Event of Default. No waiver by either party of any violation or breach of any of the terms contained herein shall waive such party’s rights regarding any future violation of such
term. Landlord’s acceptance of any partial payment of Rent shall not waive Landlord’s rights with regard to the remaining portion of the Rent that is due, regardless of any endorsement or other statement on any instrument delivered in
payment of Rent or any writing delivered in connection therewith; accordingly, Landlord’s acceptance of a partial payment of Rent shall not constitute an accord and satisfaction of the full amount of the Rent that is due. 

(c) Cumulative Remedies. Any and all remedies set forth in this Lease: (1) shall be in addition to any and all other
remedies Landlord or Tenant may have at law or in equity, (2) shall be cumulative, and (3) may be pursued successively or concurrently as Landlord or Tenant may elect. The exercise of any remedy by Landlord or Tenant shall not be deemed an
election of remedies or preclude such party from exercising any other remedies in the future. 
 20. Surrender of
Premises. No act by Landlord shall be deemed an acceptance of a surrender of the Premises, and no agreement to accept a surrender of the Premises shall be valid unless it is in writing and signed by Landlord. At the expiration or
termination of this Lease, Tenant shall deliver to Landlord the Premises with all improvements located therein in good repair and condition, free of Hazardous Materials placed on the Premises by Tenant during the Term, with all Cables removed if
requested by Landlord under the provisions of Section 25 below, broom-clean, reasonable wear and tear (and condemnation and Casualty damage not caused by Tenant, as to which Sections 14 and 15 above, respectively,
shall control) excepted, and shall deliver to Landlord all keys to the Premises. Provided that Tenant has performed all of its obligations hereunder, Tenant may remove all unattached trade fixtures, machinery, equipment, furniture, and personal
property placed in the Premises or elsewhere in the Building or Project (including Tenant’s Off-Premises Equipment, if any) by Tenant (but Tenant may not remove any such item that was paid for, in whole
or in part, by Landlord unless Landlord requires such removal). Tenant shall remove all Alterations identified for removal as set forth in Section 8(a), above, and additionally, at Landlord’s option, Tenant shall remove such trade
fixtures, personal property, equipment (including Tenant’s Off-Premises Equipment, if any), and furniture as Landlord may request. All items not so removed shall, at Landlord’s option, become the
property of Landlord without additional payment to Tenant or credit against Rent be deemed to have been abandoned by Tenant and may be appropriated, sold, stored, destroyed, or otherwise disposed of by Landlord without notice to Tenant and without
any obligation to account for such items. The provisions of this Section 20 shall survive the expiration or earlier termination of the Term. 

21. Holding Over. If Tenant, or anyone claiming under Tenant, fails to vacate and surrender the Premises to
Landlord at the end of the Term, then Tenant shall be a tenant at sufferance and, in addition to all other damages and remedies to which Landlord may be entitled for such holding over Tenant shall pay Rent at a monthly rate equal to 150% of the
Basic Rent plus Additional Rent payable during the last calendar month of the Term for the first month of such holdover period, and two hundred percent (200%) thereafter, calculated and pro-rated on a daily
basis, and Tenant shall otherwise continue to be subject to all of Tenant’s obligations under this Lease. No holding over by Tenant after the end of the Term shall be construed to extend this 

  

					
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Lease. If Tenant fails to vacate and surrender the Premises to Landlord at the end of the Term, in addition to any other liabilities to Landlord accruing therefrom, Tenant shall protect, defend,
indemnify and hold Landlord harmless from all losses, costs (including reasonable attorneys’ fees) and liabilities resulting from such failure, including any claims made by any succeeding tenant founded upon such failure to vacate and surrender
the Premises to Landlord, and any lost profits to Landlord resulting therefrom. Notwithstanding the foregoing, any holding over with the express written consent of Landlord shall constitute this Lease a lease from month-to-month (and shall not constitute a renewal of this Lease for any further term or an extension of the Term), and Tenant shall pay Rent at a monthly rate equal to one hundred fifty percent (150%) of the
sum of the Basic Rent plus the Additional Rent payable during the last calendar month of the Term, calculated and prorated on a daily basis, and Tenant shall otherwise be subject to all of the terms and conditions of this Lease. The provisions of
this Section 21 shall not be deemed to limit or constitute a waiver of any other rights or remedies of Landlord provided herein or at law. The provisions of this Section 21 shall survive the
expiration or earlier termination of the Term. 
 22. Certain Rights Reserved by Landlord. Provided that the
exercise of such rights does not materially and unreasonably interfere with Tenant’s access to, use or occupancy of the Premises, Landlord shall have the following rights: 

(a) Building Operations. To decorate and to make inspections, repairs, alterations, additions, changes, or improvements,
whether structural or otherwise, in and about the Project, or any part thereof; to enter upon the Premises (after giving Tenant not less than twenty-four (24) hours’ notice thereof, except in cases of real or apparent emergency, in which
case no notice shall be required) and, during the continuance of any such work, to temporarily close doors, entryways, public space, and corridors in the Building; to interrupt or temporarily suspend Building services and facilities; to change the
name of the Building; and to change the arrangement and location of entrances or passageways, doors, doorways, corridors, elevators, stairs, restrooms, or other public parts of the Building. Subject to the terms set forth in Section 8(e) above,
noise, dust or vibration or other incidents of construction, shall in no way constitute a constructive eviction of Tenant, affect this Lease or impose any liability on Landlord. 

(b) Security. To take such reasonable measures as Landlord deems advisable for the security of the Building and its
occupants; evacuating the Building for cause, suspected cause, or for drill purposes; temporarily denying access to the Building; and closing the Building after normal business hours and on Sundays and Holidays, subject, however, to Tenant’s
right to enter when the Building is closed after normal business hours under such reasonable regulations as Landlord may prescribe from time to time; 

(c) Current and Prospective Insurers, Purchasers, Investors and Mortgagees. To enter the Premises or any portion thereof
at all reasonable hours upon at least twenty-four (24) hours’ prior notice (which may be written, delivered by e-mail or oral) to show the Premises or any portion thereof to current or prospective
insurers, purchasers, investors or mortgagees and their respective brokers; and 
 (d) Prospective Tenants. At any time
during the last twelve (12) months of the Term (or earlier if Tenant has notified Landlord in writing that it does not desire to renew the Term) to enter the Premises or any portion thereof at all reasonable hours to show the Premises or any
portion thereof to prospective tenants and their brokers. 

  

					
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 Notwithstanding anything to the contrary in this Lease, including in this Section 22,
Landlord may enter the Premises at any time, without prior notice, to (i) perform required services, including janitorial; (ii) take possession of the Premises or any portion thereof according to Section 18(b)
above; (iii) exercise any of its other rights under Section 18 above; or (iv) post notices of nonresponsibility. Upon entry, Landlord may take such steps as are reasonably required to accomplish the purposes set
forth in this Section 22. Landlord shall at all times have a key with which to unlock all the doors in the Premises. In an emergency, Landlord shall have the right to use any means Landlord may deem proper to open the doors
in and to the Premises. Any entry into the Premises by Landlord as provided herein shall not be deemed to be a forcible or unlawful entry into or detainer of, or a constructive eviction of Tenant from, any portion of the Premises, and Tenant shall
not be entitled to any damages or abatement of Rent in connection with such entry. 
 23. Intentionally Omitted. 

24. Interior Signage. Landlord shall (A) install one (1) Building standard identification sign
identifying Tenant on the multi-tenant floor directory and (B) display Tenant’s name on the directory board for the Building located in the lobby of the Building. Landlord shall pay for the cost of the initial installation of such
permitted signage, and Tenant shall pay for the cost of any changes thereto (which changes shall be subject to Landlord’s prior approval, which shall not be unreasonably withheld). Tenant may install identification signage at the entrance to
the Premises, subject to Landlord’s prior approval, which shall not be unreasonably withheld. Notwithstanding anything contained herein or in Landlord’s sign criteria (if any) to the contrary, (1) with respect to identification
signage at the main entrance to the Premises, Landlord hereby consents to, and Tenant shall be permitted to use, Tenant’s then-current trademarked name(s), colors, letters, font and logo, and (2) Tenant shall not be required to obtain
Landlord’s consent for any promotional or advertising signs or displays within the interior of the Premises (but only to the extent that the same are not intended to be viewed from the exterior of the Premises, as reasonably determined by
Landlord). 
 25. Telecommunications and Communications. 

(a) Tenant’s Telecommunications Providers. Tenant and its telecommunications companies, including local exchange
telecommunications companies and alternative access vendor services companies, shall have no right of access to and within the Building or any other portion of the Project, for the installation and operation of telecommunications systems, including
voice, video, data, Internet, and any other services provided over wire, fiber optic, microwave, wireless, and any other transmission systems (“Telecommunications Services”), for part or all of Tenant’s
telecommunications within the Building and from the Building to any other location without Landlord’s prior consent, which consent shall not be unreasonably withheld, conditioned or delayed, and subject to the prior execution and delivery of an
access agreement on Landlord’s standard form. All providers of Telecommunications Services shall be required to comply with the rules and regulations of the Building, applicable Laws and Landlord’s policies and practices for the Building.
Tenant 

  

					
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acknowledges that Landlord shall not be required to provide or arrange for any Telecommunications Services and that Landlord shall have no liability to any Tenant Party in connection with the
installation, operation or maintenance of Telecommunications Services or any equipment or facilities relating thereto. Tenant, at its cost and for its own account, shall be solely responsible for obtaining all Telecommunications Services. 

(b) Cable Work. Tenant may install, maintain, replace and remove (collectively, the “Cable Work”) and use
any communications or computer wires, cables, fibers, connections and related telecommunications equipment and/or other facilities for telecommunications (collectively, “Cable(s)”) within or serving the Premises, provided:
(1) Tenant shall obtain Landlord’s prior approval, which approval shall not be unreasonably withheld, delayed or conditioned, shall use an experienced, licensed and qualified contractor approved by Landlord, which approval shall not be
unreasonably withheld, delayed or conditioned, and shall comply with provisions of Section 8 above and shall not interfere with the use of any then-existing Cables within or serving the Building, (2) an acceptable
number of spare Cables and space for additional Cables shall be maintained for existing and future occupants of the Building, as determined in Landlord’s reasonable opinion, (3) if Tenant at any time uses any equipment that may create an
electromagnetic field exceeding the normal insulation ratings of ordinary twisted pair riser cable or cause radiation higher than normal background radiation, the Cables therefor (including riser Cables) shall be appropriately insulated to prevent
such excessive electromagnetic fields or radiation, (4) the Cables shall be clearly marked with adhesive plastic labels (or plastic tags attached to such Cables with wire) to show Tenant’s name, suite number, telephone number and the name
of the person to contact in the case of an emergency (A) every four feet (4’) outside the Premises (including the electrical room risers and other Common Areas), and (B) at the Cables’ termination point(s), and (5) Tenant
shall pay all costs in connection therewith. Landlord shall at all times maintain exclusive control over all risers (including their use) in the Building. Landlord reserves the right to require that Tenant remove any Cables located in or serving the
Premises that are installed by or on behalf of Tenant in violation of these provisions, or which are at any time in violation of any applicable Laws or represent a dangerous or potentially dangerous condition, within three (3) days after
receipt of notice by Tenant or such longer period of time as is reasonably necessary. 
 (c) Landlord’s Reserved
Rights. Landlord may (but shall not have the obligation to) (i) install new Cables at the Building, (ii) create additional space for Cables at the Building, and (iii) reasonably direct, monitor and/or supervise the
installation, maintenance, replacement and removal of the allocation and periodic re allocation of available space (if any) for, and the allocation of excess capacity (if any) on, any Cables now or hereafter installed at the Building by Landlord,
Tenant or any other person. Such rights shall not be in limitation of other rights that may be available to Landlord by Law, in equity or otherwise. If Landlord exercises any such rights, Landlord may charge Tenant for such costs attributable to
Tenant, or may include those costs and all other such costs in Operating Costs (including, costs for acquiring and installing Cables and risers to accommodate new Cables and spare Cables, any associated computerized system and software for
maintaining records of Cable connections, and the fees of any consulting engineers and other experts); provided, any capital expenditures included in Operating Costs hereunder shall be amortized (including interest on the unamortized cost) over the
period of time prescribed by Section 4(b) above. 

  

					
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 (d) Removal Obligations. Notwithstanding anything to the contrary contained
in this Lease, Tenant shall remove any or all Cables within or serving the Premises upon expiration or earlier termination of this Lease. If Tenant fails to remove any such Cables, or violates any other provision of this
Section 25, Landlord may, after twenty (20)-days’ notice to Tenant, remove such Cables or remedy such other violation, at Tenant’s expense (without limiting Landlord’s other remedies available under this
Lease, at Law or in equity), which amount plus five percent (5%) thereof shall be paid by Tenant within thirty (30) days after Tenant’s receipt of an invoice therefor, together with reasonable supporting evidence. Tenant shall not, without
the prior consent of Landlord in each instance (which may be withheld in Landlord’s sole discretion), grant to any third party a security interest in, or lien on, any Cables, and any such security interest or lien granted without
Landlord’s consent shall be null and void. Notwithstanding anything to the contrary contained in this Lease, and without limiting the provisions of Section 25(a) above, except to the extent arising from the intentional
or negligent acts of Landlord or Landlord’s agents or employees, Landlord shall have no liability for damages arising from, and Landlord does not warrant that the Tenant’s use of any Cable will be free from the following (collectively,
“Cable Problems”): (1) any eavesdropping or wiretapping by unauthorized parties, (2) any failure of any Cable to satisfy Tenant’s requirements, or (3) any shortages, failures, variations, interruptions,
disconnections, loss or damage caused by the installation, maintenance, replacement, use or removal of Cables or by any failure of the environmental conditions or the power supply for the Building to conform to any requirements for the Cables or any
associated equipment, or any other problems associated with any Cable by any other cause. Under no circumstances shall any Cable Problems be deemed an actual or constructive eviction of Tenant, render Landlord liable to Tenant for abatement of Rent
or otherwise, or relieve Tenant from performance of Tenant’s other obligations under this Lease. Landlord in no event shall be liable for damages by reason of loss of profits, business interruption or other consequential damage arising from any
Cable Problems. The provisions of this Section 25 shall survive the expiration or earlier termination of this Lease. 

26. Miscellaneous. 

(a) Landlord Transfer. Landlord may transfer any portion of the Project and any of its rights under this Lease, in the
Project and in any other property referred to herein. If Landlord assigns its rights under this Lease, then Landlord shall thereby be released from any further obligations hereunder arising after the date of transfer, provided that the assignee
assumes in writing Landlord’s obligations hereunder arising from and after the transfer date. 
 (b) Landlord’s
Liability. The liability of the Landlord Parties to Tenant (or any person or entity claiming by, through or under Tenant) under the terms of this Lease or any matter relating to or arising out of the occupancy or use of the Premises
and/or other areas of the Project shall be limited to Tenant’s actual direct, but not consequential, damages therefor and shall be recoverable only from the interest of Landlord in the Project, including rents and issue of the Building, as well
as any insurance proceeds which Landlord receives (following payment of any outstanding liens and/or mortgages, whether attributable to sales or insurance proceeds or otherwise). Tenant agrees to look solely to such interest in the Project for the
recovery of any judgment against any Landlord Party. No Landlord Party shall be personally liable for any such judgment, award or deficiency after execution thereon and Tenant hereby waives and releases such personal liability on behalf of itself
and all persons claiming by, through or under Tenant. 

  

					
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The limitations of liability contained in this Section 26(b) shall apply equally and inure to the benefit of the Landlord Parties, present and future advisors,
beneficiaries, participants, representatives and their respective constituent partners, members, shareholders, trustees, heirs, successors and assigns. Under no circumstances shall any present or future general or limited partner of Landlord (if
Landlord is a partnership), member of Landlord (if Landlord is a limited liability company) or trustee or beneficiary (if Landlord or any partner or member of Landlord is a trust) have any liability for the performance of Landlord’s obligations
under this Lease, nor shall negative capital account of any constituent partner or member in Landlord (or in a constituent member or partner of Landlord) nor any obligation of any constituent member or partner of Landlord (or in any other
constituent member or partner of Landlord) to restore a negative capital account or to contribute or loan capital to Landlord (or to any constituent member or partner of Landlord), at any time be deemed to be the property or an asset of Landlord or
such other constituent member or partner (and neither Tenant nor any of its successors or assigns shall have any right to collect, enforce or proceed against or with respect to any such negative capital account of such a member’s or
partner’s obligation to restore or contribute). Notwithstanding any contrary provision herein, no Landlord Party shall be liable for any injury or damage to, or interference with, Tenant’s business, including loss of profits, loss of rents
or other revenues, loss of business opportunity, loss of goodwill or loss of use, or for any form of special or consequential damage, in each case however occurring. The foregoing shall be in addition to, and not in limitation of, any further
limitation of liability that might otherwise apply. Notwithstanding the foregoing, none of the provisions of this Section 26(b) shall be deemed to release any insurance carrier that insures Landlord’s liability to
Tenant or to third parties from any obligation to make any payment to Tenant pursuant to any such insurance policy, it being agreed that any release of Landlord for any obligation to Tenant is not intended to and does not release Landlord’s
insurance carrier from the obligation of paying such loss on Landlord’s behalf. The provisions of this Section 26(b) shall survive the expiration or earlier termination of the Term. 

(c) Force Majeure. Other than for Tenant’s obligations under this Lease that can be performed by the payment of money
(e.g., payment of Rent and maintenance of insurance), whenever a period of time is herein prescribed for action to be taken by either party hereto, such party shall not be liable or responsible for, and there shall be excluded from the computation
of any such period of time, any delays due to strikes, riots, acts of God, shortages of labor or materials, war, terrorist acts or activities, Laws or restrictions, or any other causes of any kind whatsoever that are beyond the control of such
party; provided, however, that nothing in this Section 26(c) shall (1) permit Tenant to holdover in the Premises after the expiration or earlier termination of this Lease, or (2) excuse any obligation to pay Rent,
any of Tenant’s obligations under Section 9 above, or Section 26(u) below, or any of Tenant’s obligations whose nonperformance would interfere with any other occupant’s use,
occupancy or enjoyment of its respective premises or the Project. 
 (d) Brokerage. Neither Landlord nor Tenant has
dealt with any broker or agent in connection with the negotiation or execution of this Lease, other than Colliers International (representing Tenant) and Urbis Partners, LLC (representing Landlord), whose commissions (if any) shall be paid by
Landlord pursuant to separate written agreements. Each party acknowledges receipt of a copy of the pamphlet described in RCW 18.86.030(f) entitled “The Law of Real Estate Agency,” as required by Washington Law. Tenant and Landlord shall
each indemnify the other against all costs, expenses, attorneys’ fees, liens and other liability for commissions or other compensation claimed by any broker or agent claiming the same by, through, or under the indemnifying party. 

  

					
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 (e) Estoppel Certificates. From time to time, Tenant shall furnish to any
person designated by Landlord (which may include Landlord), within ten (10) business days after Landlord’s request therefor, an estoppel certificate signed by Tenant in favor of such party, confirming and containing such factual
certifications and representations as to this Lease as may be reasonably requested. Unless otherwise required by a Landlord’s Mortgagee or a prospective purchaser or mortgagee of, or investor in, the Project, the form of estoppel certificate to
be signed by Tenant shall be in the form attached hereto as Exhibit F. If Tenant does not deliver to Landlord such signed estoppel certificate and/or statement within such required time period, then after a second notice from Landlord
specifying that the failure to respond within five (5) days shall be deemed an admission (so long as Landlord has made the following statements in good faith), Landlord, Landlord’s Mortgagee and any prospective purchaser, mortgagee or
investor, may conclusively presume and rely upon the following facts: (1) this Lease and the guaranty thereof, if any, is in full force and effect; (2) the terms and provisions of this Lease have not been changed except as otherwise
represented by Landlord; (3) not more than one (1) monthly installment of Basic Rent and other charges have been paid in advance; (4) there are no claims against Landlord nor any defenses or rights of offset against collection of Rent
or other charges; and (5) Landlord is not in default under this Lease. In such event, Tenant shall be estopped from denying the truth of the presumed facts. 

(f) Notices. Except to as otherwise expressly provided in this Lease to the contrary, all notices, consents, approvals, requests
and other communications given pursuant to this Lease shall be in writing and shall be (1) mailed by first-class, United States Mail, postage prepaid, certified, with return receipt requested, and addressed to the parties hereto at the address
specified in the Basic Lease Information, (2) hand delivered to the intended addressee, or (3) sent by a nationally recognized overnight courier service. All notices shall be effective upon delivery to the address of the addressee (even if
such addressee refuses delivery thereof). The parties hereto may change their addresses by giving notice thereof to the other in conformity with this provision. 

(g) Separability. If any clause or provision of this Lease is illegal, invalid, or unenforceable under present or future
Laws, then the remainder of this Lease shall not be affected thereby and in lieu of such clause or provision, there shall be added as a part of this Lease a clause or provision as similar in terms to such illegal, invalid, or unenforceable clause or
provision as may be possible, which clause or provision shall be legal, valid, and enforceable. 
 (h) Amendments; Binding Effect; No
Electronic Records. This Lease may not be amended except by instrument in writing signed by Landlord and Tenant. No provision of this Lease shall be deemed to have been waived by a party unless such waiver is in writing signed by such
party, and no custom or practice that may evolve between the parties in the administration of the terms hereof shall waive or diminish the right of a party to insist upon the performance by the other party in strict accordance with the terms hereof.
The terms and conditions contained in this Lease shall inure to the benefit of and be binding upon the parties hereto, and upon their respective successors in interest and legal representatives, except as otherwise herein expressly provided. This
Lease is for the sole benefit of Landlord and Tenant, and, other than Landlord’s Mortgagee, no third-party shall be deemed a third-party beneficiary hereof. 

  

					
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 (i) Quiet Enjoyment. Provided Tenant has performed all of its obligations
hereunder, Tenant shall peaceably and quietly hold and enjoy the Premises for the Term, without hindrance from Landlord or any party claiming by, through, or under Landlord, but not otherwise, subject to the terms and conditions of this Lease. It is
understood and agreed that this covenant and any and all other covenants of Landlord contained in this Lease shall be binding upon Landlord and its successors only with respect to breaches occurring during its and their respective ownership of the
Landlord’s interest hereunder. 
 (j) No Merger. There shall be no merger of the leasehold estate hereby created
with the fee estate in the Premises or any part thereof if the same person acquires or holds, directly or indirectly, this Lease or any interest in this Lease and the fee estate in the leasehold Premises or any interest in such fee estate. 

(k) Entire Agreement. This Lease constitutes the entire agreement between Landlord and Tenant regarding the subject matter
hereof and supersedes all oral statements and prior writings relating thereto. Except for those set forth in this Lease, no representations, warranties, or agreements have been made by Landlord or Tenant to the other with respect to this Lease or
the obligations of Landlord or Tenant in connection therewith. The normal rule of construction that any ambiguities be resolved against the drafting party shall not apply to the interpretation of this Lease or any exhibits or amendments hereto. 

(l) Waiver of Jury Trial. TO THE MAXIMUM EXTENT PERMITTED BY LAW, LANDLORD AND TENANT EACH WAIVE ANY RIGHT TO TRIAL BY
JURY IN ANY LITIGATION OR TO HAVE A JURY PARTICIPATE IN RESOLVING ANY DISPUTE ARISING OUT OF OR WITH RESPECT TO THIS LEASE OR ANY OTHER INSTRUMENT, DOCUMENT OR AGREEMENT EXECUTED OR DELIVERED IN CONNECTION HEREWITH OR THE TRANSACTIONS RELATED
HERETO. 
 (m) Governing Law. This Lease shall be governed by and construed in accordance with the Laws of the State of
Washington. 
 (n) Recording. Tenant shall not record this Lease or any memorandum of this Lease without the prior
consent of Landlord, which consent may be withheld or denied in the sole and absolute discretion of Landlord, and any recordation by Tenant shall be a material breach of this Lease that cannot be cured. Tenant grants to Landlord a power of attorney
to execute and record a release releasing any such recorded instrument of record that was recorded without the prior consent of Landlord. 

(o) Water or Mold Notification. To the extent Tenant or its agents or employees discover any water leakage, water damage
or mold in or about the Premises or Project, Tenant shall promptly notify Landlord thereof. 

  

					
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 (p) Joint and Several Liability. If Tenant is comprised of more than one
party, each such party shall be jointly and severally liable for Tenant’s obligations under this Lease. All unperformed obligations of Tenant hereunder not fully performed at the end of the Term shall survive the end of the Term, including
payment obligations with respect to Rent, all indemnity obligations and all obligations concerning the condition and repair of the Premises. 

(q) Financial Reports. Within thirty (30) days after Landlord’s request, Tenant will furnish Tenant’s most
recent audited financial statements (including any notes to them) to Landlord, or, if no such audited statements have been prepared, such other financial statements (and notes to them) as may have been prepared by an independent certified public
accountant or, failing those, Tenant’s internally prepared financial statements. If and when Tenant is a publicly traded corporation, Tenant does not need to comply with the terms of this Section, and Landlord may review Tenant’s publicly
available financial statements. Landlord will not disclose any aspect of Tenant’s financial statements that Tenant designates to Landlord as confidential except (1) to a Landlord’s Mortgagee or prospective mortgagees or purchasers of,
or investors in, the Project, (2) in litigation between Landlord and Tenant, and/or (3) if required by Law or court order. Tenant shall not be required to deliver the financial statements required under this
Section 26(q) more than once in any 12-month period unless requested by a Landlord’s Mortgagee or a prospective mortgagee or purchaser of, or investor in, the Project or an Event
of Default occurs. 
 (r) Attorneys’ Fees. In the event that either Landlord or Tenant should bring suit for the
possession of the Premises, for the recovery of any sum due under this Lease, or because of the breach of any provision of this Lease or for any other relief against the other, then all costs and expenses, including reasonable attorneys’ fees,
incurred by the Prevailing Party therein shall be paid by the other party, which obligation on the part of the other party shall be deemed to have accrued on the date of the commencement of such action and shall be enforceable whether or not the
action is prosecuted to judgment. The term, “Prevailing Party” shall include, without limitation, a party who substantially obtains or defeats the relief sought, as the case may be, whether by compromise, settlement, judgment or
abandonment by the other party of its claim or defense. 
 (s) Confidentiality. Tenant acknowledges that the content of
this Lease and any related documents are confidential information. Tenant shall keep such confidential information strictly confidential and shall not disclose such confidential information to any person or entity other than Tenant’s financial,
legal, and space planning consultants and to investors, lenders, consultants, accountants and assignees, or to the extent that disclosure is mandated by applicable Laws, the Securities Exchange Commission or the rules of any stock exchange upon
which Tenant’s (or Tenant’s parent’s) shares are from time to time traded; provided, however, to the extent that this Lease is placed in the public domain as a result of Tenant’s compliance with the requirements of the Securities
Exchange Commission or with the requirements of applicable Laws (and not as a result of Tenant’s breach of the terms of this Section 26(s)), then the terms of this Section 26(s) shall no
longer be applicable to this Lease. Tenant shall be liable for any disclosures made in violation of this Section 26(s) by Tenant or by any entity or individual to whom the terms and conditions of this Lease were disclosed
or made available by Tenant. The consent by Landlord to any disclosures shall not be deemed to be a waiver on the part of Landlord of any prohibition against any future disclosure. 

  

					
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 (t) Authority. Tenant (if a corporation, partnership or other business
entity) hereby represents and warrants to Landlord that Tenant is a duly formed and existing entity qualified to do business in the State of Washington, that Tenant has full right and authority to execute and deliver this Lease, and that each person
signing on behalf of Tenant is authorized to do so. Landlord hereby represents and warrants to Tenant that Landlord has full right and authority to execute and deliver this Lease, and that each person signing on behalf of Landlord is authorized to
do so, and that Landlord owns and holds fee title in and to the Building, the Premises, and the Land enabling Landlord to enter into an enforceable lease with Tenant on the terms and conditions contained herein. 

(u) Hazardous Materials. 

(1) The term “Hazardous Materials” means any substance, material, or waste that is now or hereafter classified or considered
to be hazardous, toxic, or dangerous under any Law relating to pollution or the protection or regulation of human health, natural resources or the environment, or poses or threatens to pose a hazard to the health or safety of persons on the Premises
or in the Project. 
 (2) Tenant shall not use, generate, store, or dispose of, or permit the use, generation, storage or disposal of
Hazardous Materials on or about the Premises or the Project except in a manner and quantity necessary for the ordinary performance of Tenant’s business, and then in compliance with all Laws. If Tenant breaches its obligations under this
Section 26(u). Landlord may upon five (5) days prior notice to Tenant, or such shorter time required by Law or in order to minimize any hazard to person or property, take any and all action reasonably appropriate to
remedy the same, including taking all appropriate action to clean-up or remediate any contamination resulting from Tenant’s use, generation, storage or disposal of Hazardous Materials, and Tenant shall
reimburse to Landlord an amount equal to Landlord’s costs plus five percent (5%) for overhead which shall be payable within thirty (30) days after Tenant’s receipt of an invoice therefor, together with supporting evidence.
Notwithstanding Landlord’s indemnity contained in Section 11(d) above, Tenant shall defend, indemnify, and hold harmless Landlord and its representatives and agents from and against any and all Claims (including
reasonable attorneys’ fees, cost of clean-up investigation and remediation) arising from Tenant’s failure to comply with the provisions of this Section 26(u). To the extent
that Landlord is held strictly liable by a court or governmental agency of competent jurisdiction due to Tenant’s use of Hazardous Materials on the Premises, Tenant’s obligation to Landlord under the foregoing indemnification shall
likewise be without regard to fault on Tenant’s part. 
 (3) Landlord will, at its sole expense, remove or remediate any Hazardous
Materials in the Premises or the Project, in violation of any Laws, caused by Landlord or the Landlord Parties, which shall in no event include any Hazardous Materials introduced into the Premises during the term of the Prior Lease by Tenant (or
Tenant’s predecessors-in-interest under the Prior Lease) or any Tenant Party. To the extent Hazards Materials are present in the Premises or the Project, in
violation of any Laws and such presence is caused by another tenant of the Project, then Landlord shall use commercially reasonable efforts to enforce any rights it may have against such tenant to remove or remediate. Landlord agrees to indemnify,
defend, protect and hold harmless the Tenant Parties from and against any liability, obligation, damage or costs, including without limitation, attorneys’ fees and costs, resulting directly or indirectly from any use, presence, removal or
disposal of any Hazardous Materials to the extent such liability, obligation, damage or costs was a result of actions caused or knowingly permitted by Landlord or a Landlord Party. 

  

					
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 (4) The obligations of Landlord and Tenant under this Section 26(u)
shall survive the termination of this Lease. 
 (v) List of Exhibits. All exhibits and attachments
attached hereto are incorporated herein by this reference. 
  

							
	 Exhibit A
	  	 	—  	 	  	 Outline of Premises, Outline of Must-Take Premises

	 Exhibit B
	  	 	—  	 	  	Description of the Land
	 Exhibit C
	  	 	—  	 	  	Building Rules and Regulations
	 Exhibit D
	  	 	—  	 	  	Tenant Work Letter
	 Exhibit E
	  	 	—  	 	  	Form of Confirmation of Commencement Date Letter
	 Exhibit F
	  	 	—  	 	  	Form of Tenant Estoppel Certificate
	 Exhibit G
	  	 	—  	 	  	Parking
	 Exhibit H
	  	 	—  	 	  	Rent Abatement Provision
	 Exhibit I
	  	 	—  	 	  	Extension Option
	 Exhibit J
	  	 	—  	 	  	Early Termination Option
	 Exhibit K
	  	 	—  	 	  	Right of First Offer
	 Exhibit L
	  	 	—  	 	  	Form of Letter of Credit

 (w) OFAC/FCPA Representation. Neither Tenant nor any of its affiliates, nor to the best
of Tenant knowledge any of their respective brokers or other agents acting in any capacity in connection with the transactions contemplated by this Lease, is or will be (a) conducting any business or engaging in any transaction or dealing with any
person appearing on the U.S. Treasury Department’s OFAC list of prohibited countries, territories, “specifically designated nationals” (“SDNs”) or “blocked person” (each a “Prohibited
Person”) (which lists can be accessed at the following web address: http://www.ustreas.gov/offices/enforcement/ofac/), including the making or receiving of any contribution of funds, goods or services to or for the benefit of any such
Prohibited Person; (b) engaging in certain dealings with countries and organizations designated under Section 311 of the USA PATRIOT Act as warranting special measures due to money-laundering concerns; (c) dealing in, or otherwise engaging in
any transaction relating to, any property or interests in property blocked pursuant to Executive Order No. 13224 dated September 24, 2001, relating to “Blocking Property and Prohibiting Transactions With Persons Who Commit, Threaten
to Commit, or Support Terrorism”; (d) a foreign shell bank or any person that a financial institution would be prohibited from transacting with under the USA PATRIOT Act; or (e) engaging in or conspiring to engage in any transaction that
evades or avoids, or has the purpose of evading or avoiding, or attempting to violate, any of the prohibitions set forth in (i) any U.S. anti-money-laundering law, (ii) the Foreign Corrupt Practices Act, (iii) the U.S. mail and wire
fraud statutes, (iv) the Travel Act, (v) any similar or successor statutes or (vi) any regulations promulgated under the foregoing statutes. If at any time this representation becomes false, then 

  

					
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it shall be considered an Event of Default under this Lease as to which there shall be no right to notice or an opportunity to cure, notwithstanding anything contained in this Lease to the
contrary, and Landlord shall have the right to exercise all of the remedies set forth in this Lease including, without limitation, immediate termination of this Lease. To the best of Landlord’s knowledge Landlord is not a person or entity with
whom Tenant is restricted from doing business with under regulations of the Office of Foreign Asset Control (“OFAC”) of the Department of the Treasury (including, but not limited to, those named on OFAC’s Specially Designated
and Blocked Persons list) or under any related statute, Executive Order (including, but not limited to, the September 24, 2001, Executive Order Blocking Property and Prohibiting Transactions With Persons Who Commit, Threaten to Commit, or
Support Terrorism), or other similar governmental action. 
 (x) Survival of Obligations. Any obligations of the parties
accruing prior to the end of the Term shall survive, and the parties shall promptly perform all such obligations whether or not this Lease has expired or earlier terminated. 

(y) Intentionally Omitted. 

(z) Landlord Default. Notwithstanding anything to the contrary set forth in this Lease, Landlord shall be in default in
the performance of any obligation required to be performed by Landlord pursuant to this Lease if Landlord fails to perform such obligation within thirty (30) days after the receipt of notice from Tenant specifying in detail Landlord’s
failure to perform; provided, that if the nature of Landlord’s obligation is such that more than thirty (30) days are reasonably required for its performance, then Landlord shall not be in default under this Lease if it shall commence such
performance within such thirty (30) day period and thereafter diligently pursue the same to completion. 
 (aa) Business
Days. For purposes of this Lease, “Business Days” means all calendar days other than Saturdays, Sundays, and Holidays. If the date for performance of any covenant or obligation under this Lease shall fall on a day
that is not a Business Day, then the date for performance thereof shall be deemed to be the next following Business Day. 
 (bb) Terms;
Captions. The words “Landlord” and “Tenant” as used herein shall include the plural as well as the singular. The captions of Sections are for convenience only and shall not affect the interpretation
of such Sections. The word “person”, as used in this Lease, means any natural person or persons in individual or representative capacities and any entity or entities of any kind whatsoever, including, corporations, partnerships and
associations, or any combination of persons and entities. Any reference herein to “any part” or “any portion” of the Premises, the Building, the Property, the Project or any other property shall be construed to refer to all or
any part of such property. Wherever this Lease requires Tenant to comply with any Law, rule, regulation, program, procedure or other requirement or prohibits Tenant from engaging in any particular conduct, this Lease shall be deemed also to require
Tenant to cause each of its employees, licensees, invitees and subtenants, and any other person claiming by, through or under Tenant, to comply with such requirement or refrain from engaging in such conduct, as the case may be. 

  

					
		  	46	  	 Second & Spring

Avalara, Inc.

 (cc) Bicycle Parking. In connection with this Lease, Landlord shall provide
bicycle parking racks for bicycle parking. Landlord may elect to provide such bicycle parking racks at the Building or at the adjacent office building located at 1111 3rd Avenue (the
“Adjacent Building”), which Adjacent Building is owned by an affiliate of Landlord. Tenant’s use of such bicycle parking racks shall be for the parking of bicycles only, and shall be in common with the other tenants and occupants of
the Building and the Adjacent Building on a first-come, first-served basis. In the event that such Adjacent Building is ever no longer owned by an affiliate of Landlord, or by Landlord, then Landlord shall have no further obligation to provide any
such bicycle parking at the Adjacent Building, and shall instead provide bicycle parking racks in an area(s) of the Project solely determined by Landlord, and Tenant’s use of such bicycle parking racks shall be for the parking of bicycles only,
and shall be in common with the other tenants and occupants of the Building on a first-come, first-served basis. The rate payable by Tenant for the use of such bicycle parking racks shall be the prevailing rate charged from time to time for other
patrons of the bicycle parking racks. The bicycle parking provided to Tenant pursuant to this Section 26(cc) is provided to Tenant solely for use by Tenant’s own personnel and such use may not be transferred, assigned,
subleased or otherwise alienated by Tenant without Landlord’s prior approval, which will not be withheld in connection with any sublease or assignment carried out in accordance with the provisions of this Lease. The cost of the operation,
maintenance and repair of such bicycle parking area(s) shall be included in the Operating Expenses to the extent consistent the terms set forth in this Lease. Landlord shall use commercially reasonable efforts to provide that the bicycle parking
racks will be secure, but Tenant hereby acknowledges that Landlord shall have no obligation to provide guard service or other security measures for the benefit of such bicycle parking racks. Tenant further assumes the risk that any safety and
security devices, services and programs which Landlord elects, in its sole discretion, to provide may not be effective, or may malfunction or be circumvented by an unauthorized third party, and Tenant shall, in addition to its other insurance
obligations under this Lease, obtain its own insurance coverage to the extent Tenant desires protection against losses related to such occurrences. 

(dd) Removal of Property. Landlord acknowledges that Tenant may, from time to time and any time during the Term, elect to
finance or lease furniture, fixtures and/or equipment to be used by Tenant in the Premises. In the event of any such furniture, fixtures and/or equipment loan/lease, upon request of the equipment lender/lessor, Landlord shall, at Tenant’s sole
cost, enter into a commercially reasonable form of waiver agreement reasonably acceptable to Landlord whereby Landlord shall waive its rights under this Lease with respect to such furniture, fixtures and/or equipment. 

[Remainder of the Page Left Blank; Signature Page Follows] 

  

					
		  	47	  	 Second & Spring

Avalara, Inc.

 Signature Page (Page 1 of 2) to the Lease Agreement between W2007 Seattle Office Second

 And Spring Building Realty, LLC, a Delaware limited liability company, as Landlord, and 

Avalara, Inc., a Washington corporation, as Tenant 

This Lease is executed as of the date first written above. 

LANDLORD: 
 W2007 SEATTLE OFFICE SECOND AND SPRING BUILDING
REALTY, LLC, 
 a Delaware limited liability company 
  

																	
	By:	  	 Walton Seattle Mezz Holdings VI-A, L.L.C.,

a Delaware limited liability company,
 its Sole
Member

			
		  	By:	  	 Walton Seattle Mezz JV VI, L.L.C.,

a Delaware limited liability company,
 its Sole
Member

				
		  		  	By:	  	 Walton Seattle Mezz Investors VI, L.L.C.,

a Delaware limited liability company,
 its Managing
Member

					
		  		  		  	By:	  	 Walton Acquisition REOC Master VI, L.L.C.,

a Delaware limited liability company,
 its Sole
Member

						
		  		  		  		  	By:	  	 Walton Street Real Estate Fund VI-Q, L.P.,

a Delaware limited partnership,
 its Managing Member

							
		  		  		  		  		  	By:	  	 Walton Street Managers VI, L.P.,
 a
Delaware limited partnership,
 its General Partner

								
		  		  		  		  		  		  	By:	 	 WSC Managers VI, Inc.,
 a Delaware
corporation,
 its General Partner

									
		  		  		  		  		  		  		 	By:	 	 /s/ James Odenbach

		  		  		  		  		  		  		 	Name:	 	James Odenbach
		  		  		  		  		  		  		 	Title:	 	Vice President

  

					
		  	48	  	 Second & Spring

Avalara, Inc.

 Signature Page (continued, Page 2 of 2) to the Lease Agreement between W2007 Seattle 

Office Second And Spring Building Realty, LLC, a Delaware limited liability company, as 

Landlord, and Avalara, Inc., a Washington corporation, as Tenant 

TENANT: 
  

			
	 AVALARA, INC.,
 a Washington
corporation

		
	By:	 	 /s/ Kevin P Riegelsberger

	Name:	 	Kevin P Riegelsberger
	Title:	 	Chief Strategic Initiatives Officer

  

			
	By:	 	 /s/ Alesia Pinney

	Name:	 	Alesia Pinney
	Title:	 	EVP & General Counsel

  

					
		  	49	  	 Second & Spring

Avalara, Inc.

 LANDLORD ACKNOWLEDGMENT 

 

					
	STATE OF ILLINOIS	  	)	  	
		  	)	  	
	COUNTY OF COOK	  	)	  	

 I, the undersigned, a Notary Public in and for said County, in the State aforesaid, DO HEREBY CERTIFY THAT James Odenbach, as
Vice President of WSC Managers VI, Inc., a Delaware corporation, personally known to me or proved to me on the basis of satisfactory evidence to be the same person whose name is subscribed to the foregoing instrument, appeared before me this day in
person and acknowledged that             he signed and delivered said instrument as                 free and
voluntary act, and as a free and voluntary act of said company, for the uses and purposes therein set forth. 
 Given under my hand and Notarial seal this
28 day of August, 2014. 
  

	
	 /s/ Michelle Meywes

	Print Name: Michelle Meywes
	Notary Public

  

			
	             Commission Expiration:
11/24/17                

	                    (Seal)
	
	

  

					
		  	50	  	 Second & Spring

Avalara, Inc.

 TENANT ACKNOWLEDGMENT 

 

	
	STATE OF WASHINGTON        }
	} ss.
	COUNTY OF KING                    }

 On this 22 day of August, 2014, before me, a Notary Public in and for the State of Washington, personally appeared Kevin
Riegelsberger personally known to me (or proved to me on the basis of satisfactory evidence) to be the person who executed this instrument; on oath stated that said individual was authorized to execute the instrument, and acknowledged it as the
Chief Strategic Initiatives Officer of Avalara, Inc., a Washington Corporation, to be the free and voluntary act and deed of said corporation for the uses and purposes mentioned in the instrument. 

IN WITNESS WHEREOF, I have hereunto set my hand and official seal the day and year First above written. 

 

	
	 /s/ Paul Andre Barrera

	(Print Name) Paul Andre Barrera
	NOTARY PUBLIC in and for the State of Washington
	residing at Seattle, Washington
	My appointment expires: 1/11/2016

  

	
	STATE OF WASHINGTON            }
	} ss.
	COUNTY OF KING                       }

 On this 22 day of August, 2014, before me, a Notary Public in and for the State of Washington, personally appeared
alesia Pinney, personally known to me (or proved to me on the basis of satisfactory evidence) to be the person who executed this instrument, on oath stated that said individual was authorized to execute the instrument, and acknowledged it as the EVP
& General Counsel of Avalara, Inc., a Washington Corporation, to be the free and voluntary act and deed of said corporation for the uses and 
 purposes
mentioned in the instrument. 
 IN WITNESS WHEREOF, I have hereunto set my hand and official seal the day and year first above written. 

 

	
	 /s/ Paul Andre Barrera

	(Print Name) Paul Andre Barrera
	NOTARY PUBLIC in and for the State of Washington,
	residing at Seattle, Washington
	My appointment expires: 1/11/2016

  

					
		  	51	  	 Second & Spring

Avalara, Inc.

 EXHIBIT A 

OUTLINE OF PREMISES 
 

 

  

					
		  	EXHIBIT A	  	
		  	1	  	 Second & Spring

Avalara, Inc.

 EXHIBIT A 

OUTLINE OF MUST-TAKE PREMISES 
  

 

  

					
		  	EXHIBIT A	  	
		  	2	  	 Second & Spring

Avalara, Inc.

 EXHIBIT B 

DESCRIPTION OF THE LAND 
 The
following described real property in the City of Seattle, County of King, State of Washington: 
 LOTS 1, 4, 5 AND 8, BLOCK 14, ADDITION TO THE TOWN OF
SEATTLE, AS LAID OUT ON THE CLAIMS OF C.D. BOREN AND A.A. DENNY AND H.L. YESLER (COMMONLY KNOWN AS C.D. BOREN’S ADDITION TO THE CITY OF SEATTLE), ACCORDING TO THE PLAT THEREOF, RECORDED IN VOLUME 1 OF PLATS, PAGE(S) 25, IN KING COUNTY,
WASHINGTON; 
 EXCEPT THE WESTERLY 12 FEET THEREOF CONDEMNED IN DISTRICT COURT CAUSE NO. 7097 FOR THE WIDENING OF SECOND AVENUE AS PROVIDED BY ORDINANCE NO.
1107 OF THE CITY OF SEATTLE; 
 TOGETHER WITH THAT PORTION OF THE VACATED ALLEY ADJOINING, WHICH UPON VACATION, ATTACHED THERETO BY OPERATION OF LAW. 

  

					
		  	EXHIBIT B	  	
		  	1	  	 Second & Spring

Avalara, Inc.

 EXHIBIT C 

BUILDING RULES AND REGULATIONS 

The following rules and regulations shall apply to the Premises, the Building, the Parking Facility, and the appurtenances thereto, except as
otherwise expressly set forth in the Lease: 
 1. Sidewalks, doorways, vestibules, halls, stairways, and other similar areas shall not be
obstructed by tenants or used by any tenant for purposes other than ingress and egress to and from their respective leased premises and for going from one to another part of the Building. 

2. Plumbing, fixtures and appliances shall be used only for the purposes for which designed, and no sweepings, rubbish, rags or other
unsuitable material shall be thrown or deposited therein. Damage resulting to any such fixtures or appliances from misuse by a tenant or its agents, employees or invitees, shall be paid by such tenant. 

3. No signs, advertisements or notices (other than those that are not intended to be viewed from the exterior of any tenant’s leased
premises, as reasonably determined by Landlord) shall be painted or affixed on or to any windows or doors or other part of the Building without the prior written consent of Landlord. No curtains or other window treatments shall be placed between the
glass and the Building standard window treatments. 
 4. Landlord shall provide and maintain an alphabetical directory for all tenants in the
main lobby of the Building. 
 5. Landlord shall provide all door locks in each tenant’s leased premises, at the cost of such tenant,
and no tenant shall place any additional door locks in its leased premises without Landlord’s prior written consent. Landlord shall furnish to each tenant a reasonable number of keys to such tenant’s leased premises, at such tenant’s
cost, and no tenant shall make a duplicate thereof. 
 6. Movement in or out of the Building of furniture or office equipment, or dispatch or
receipt by tenants of any bulky material, merchandise or materials that require use of elevators or stairways, or movement through the Building entrances or lobby shall be conducted under Landlord’s supervision at such times and in such a
manner as Landlord may reasonably require. Each tenant assumes all risks of, and shall be liable for all damage to, articles moved and injury to persons or public engaged or not engaged in such movement, including equipment, property and personnel
of Landlord if damaged or injured as a result of acts in connection with carrying out this service for such tenant. 
 7. Landlord may
prescribe weight limitations and determine the locations for safes and other heavy equipment or items, which shall in all cases be placed in the Building so as to distribute weight in a manner acceptable to Landlord, which may include the use of
such supporting devices as Landlord may require. All damage to the Building caused by the installation or removal of any property of a tenant, or done by a tenant’s property while in the Building, shall be repaired at the expense of such
tenant. 

  

					
		  	EXHIBIT C	  	
		  	1	  	 Second & Spring

Avalara, Inc.

 8. Corridor doors, when not in use, shall be kept closed. Nothing shall be swept or thrown into
the corridors, halls, elevator shafts or stairways. No birds or animals (other than service animals) shall be brought into or kept in, on or about any tenant’s leased premises. No portion of any tenant’s leased premises shall at any time
be used or occupied as sleeping or lodging quarters. 
 9. Tenant shall cooperate with Landlord’s employees in keeping its leased
premises neat and clean. Tenants shall not employ any person for the purpose of such cleaning other than the Building’s cleaning and maintenance personnel. 

10. To ensure orderly operation of the Building, no ice, mineral or other water, towels, newspapers, etc. shall be delivered to any leased area
except by persons approved by Landlord. 
 11. Tenant shall not make or permit any vibration or improper, objectionable or unpleasant noises
or odors in the Building or otherwise interfere in any way with other tenants or persons having business with them. 
 12. No machinery of
any kind (other than normal office equipment) shall be operated by any tenant on its leased area without Landlord’s prior written consent, nor shall any tenant use or keep in the Building any flammable or explosive fluid or substance (other
than typical office supplies [e.g., photocopier toner] used in compliance with all Laws). 
 13. Landlord will not be responsible for lost or
stolen personal property, money or jewelry from tenant’s leased premises or public or Common Areas regardless of whether such loss occurs when the area is locked against entry or not. 

14. No vending or dispensing machines of any kind may be maintained in any leased premises without the prior written permission of Landlord.

 15. Tenant shall not conduct any activity on or about the Premises or Project which will draw pickets, demonstrators, or the like. 

16. All vehicles are to be currently licensed, in good operating condition, parked for business purposes having to do with tenant’s
business operated in such tenant’s leased premises, parked within designated parking spaces, one vehicle to each space. No vehicle shall be parked as a “billboard” vehicle in the Parking Facility. Any vehicle parked improperly may be
towed away. Tenant, tenant’s agents, employees, vendors and customers who do not operate or park their vehicles as required shall subject the vehicle to being towed at the expense of the owner or driver. Landlord may place a “boot” on
the vehicle to immobilize it and may levy a charge of Fifty Dollars ($50.00) to remove the “boot.” Tenant shall indemnify, hold and save harmless Landlord of any liability arising from the towing or booting of any vehicles belonging to a
Tenant Party. 
 17. No tenant may enter into phone rooms, electrical rooms, mechanical rooms, or other service areas of the Building unless
accompanied by Landlord or the Building manager. 

  

					
		  	EXHIBIT C	  	
		  	2	  	 Second & Spring

Avalara, Inc.

 18. Tenant will not permit any Tenant Party to bring onto the Project any handgun, firearm or
other weapons of any kind, illegal drugs or, unless expressly permitted by Landlord in writing, alcoholic beverages. 
 19. Tenant shall not
permit its employees, invitees or guests to smoke in such tenant’s leased premises or the lobbies, passages, corridors, elevators, vending rooms, rest rooms, stairways or any other area shared in common with other tenants in the Building, or
permit its employees, invitees, or guests to loiter at the Building entrances for the purposes of smoking. Landlord may, but shall not be required to, designate an area for smoking outside the Building. 

20. Any requests by Tenant will be attended to only upon application at the office of the property manager located at 1111 3rd Avenue, Suite 301, Seattle, Washington 98101 (or such other address as may be designated by Landlord from time to time) (the “Property Management Office”). Employees of the Project
shall not perform work or do anything outside their regular duties unless under special instructions from the Property Management Office. 

  

					
		  	EXHIBIT C	  	
		  	3	  	 Second & Spring

Avalara, Inc.

 EXHIBIT D 

TENANT WORK LETTER 

This Tenant Work Letter (“Tenant Work Letter”) shall set forth the terms and conditions relating to the construction of the
Premises. All references in this Tenant Work Letter to “the Lease” shall mean the relevant portions of the Lease to which this Tenant Work Letter is attached as Exhibit D. 

SECTION 1 

GENERAL CONSTRUCTION OF THE PREMISES 

1.1 In General. Landlord shall deliver, and Tenant shall accept, the base, shell and core of (i) the Premises and (ii) the
floor of the Building on which the Premises is located (collectively, the “Base, Shell and Core”) in its current “AS-IS” condition and configuration existing as of the date of the
Lease. Tenant shall install in the Premises certain “Tenant Improvements” (as defined below) pursuant to the provisions of this Tenant Work Letter. Except for Landlord’s obligation to disburse the Tenant Improvement Allowance as
described below, Landlord shall not be obligated to make or pay for any alterations or improvements to the Premises, Building or any other portion of the Project. 

1.2 Landlord Work. Notwithstanding the terms set forth in Section 1.1, above, Landlord shall, at
Landlord’s sole cost, cause the work delineated on Schedule 1 hereto (the “Landlord’s Work”) to be completed. 

1.3 Construction Phases. Landlord and Tenant acknowledge that the Tenant Improvements will be constructed in phases, with the Tenant
Improvements in the Initial Premises to be constructed by Tenant following Landlord’s delivery of the Initial Premises to Tenant, and the Tenant Improvements in the Must-Take Premises to be constructed by Tenant following Landlord’s
delivery of the Must-Take Premises to Tenant. All references herein to “Premises” shall mean the Initial Premises or the Must-Take Premises, as applicable. 

SECTION 2 

TENANT IMPROVEMENTS 

2.1 Tenant Improvement Allowance. 

2.1.1 In General. Tenant shall be entitled to a one-time tenant improvement allowance (the
“Tenant Improvement Allowance”) in the amount of up to, but not exceeding, $55.00 per rentable square foot of the Premises, for the costs relating to the initial design and construction of Tenant’s improvements that are
permanently affixed to the Premises (the “Tenant Improvements”). In no event shall Landlord be obligated to make disbursements pursuant to this Tenant Work Letter in a total amount that exceeds the Tenant Improvement Allowance.
Tenant shall not be entitled to receive any cash payment or credit against Rent or otherwise for any unused portion of the Tenant Improvement Allowance. 

  

					
		  	EXHIBIT D	  	
		  	1	  	 Second & Spring

Avalara, Inc.

 2.1.2 Additional Tenant Improvement Allowance. In addition to the Tenant Improvement
Allowance set forth in Section 2.1.1, above, Tenant shall, only if so elected by Tenant in writing prior to the Substantial Completion (as defined below) of the Tenant Improvements and only to the extent the cost of the Tenant Improvements
exceeds the amount of the Tenant Improvement Allowance set forth in Section 2.1.1, above, be entitled to a one-time additional allowance increase in an amount not to exceed $10.00 per rentable square foot
of the Premises (the “Additional Improvement Allowance”) to be used solely for hard costs in the construction of the Tenant Improvements. In the event Tenant exercises its right to use all or any portion of the Additional
Improvement Allowance, the monthly Basic Rent for the Premises for the initial Lease Term shall be increased by an amount equal to the “Additional Monthly Basic Rent,” as that term is defined below, in order to repay the Additional
Improvement Allowance to Landlord. The “Additional Monthly Basic Rent” shall be determined as the missing component of an annuity, which annuity shall have (i) the amount of the Additional Improvement Allowance utilized by
Tenant as the present value amount, (ii) ninety (90) as the number of payments, (iii) 0.667, which is equal to eight percent (8%) divided by twelve (12) months per year, as the monthly interest factor, and (iv) the Additional Monthly
Basic Rent as the missing component of the annuity. In the event Tenant uses all or any portion of the Additional Improvement Allowance, then all references in this Tenant Work Letter to the “Tenant Improvement Allowance” (other than for
purposes of Section 2.1.3, below) shall be deemed to include the Additional Improvement Allowance utilized by Tenant. Tenant acknowledges and hereby agrees to pay to Landlord the full amount of the Additional Improvement Allowance requested by
Tenant and disbursed by Landlord as provided herein (including interest, as provided herein above), and accordingly, hereby further agrees that in no event shall any provision of this Lease relating to any abatement, reduction, cessation or other
modification of the Rent payable by Tenant to Landlord (including, without limitation, Section 7, Section 14, Section 15 and Exhibit H of this Lease) be deemed to affect, modify, reduce or otherwise apply with respect to
Tenant’s obligation to pay the Additional Improvement Allowance to Landlord, and which obligation shall continue to survive any early termination of this Lease until the full amount of the Additional Improvement Allowance requested by Tenant
and disbursed by Landlord (including interest as provided herein) has been paid to Landlord. 
 2.1.3 Tenant Improvement Excess. In
the event that following the completion of the construction of Tenant Improvements in both portions of the Premises (i.e., the Initial Premises and the Must-Take Premises), the total aggregate final cost of the design, permitting, supervision and
construction of the Tenant Improvements (including any increase in such final costs due to any revisions, changes, or substitutions made to any of the Construction Documents or the Tenant Improvements) (collectively, the “Total Construction
Cost”), is less than the amount of the Tenant Improvement Allowance (which, for purposes of this Section 2.1.3, shall not include the Additional Improvement Allowance), then Tenant may elect, by written notice to Landlord for Landlord
to provide Tenant with a credit (the “Construction Cost Credit”) against the payment of Basic Rent next due and owing for the Premises in an amount equal to the difference between (i) the Tenant Improvement Allowance and
(ii) the Total Construction Cost; provided, however, in no event shall the Construction Cost Credit exceed an amount equal to $10.00 per rentable square foot of the Premises. If the Tenant Improvement Allowance is not fully used (either to pay
for Tenant Improvement Allowance Items, as defined below, or as a Construction Cost Credit) within ninety (90) days following the Substantial Completion of the Tenant Improvements, then any such unused amount shall be retained by Landlord and
Tenant shall have no further rights thereto. 

  

					
		  	EXHIBIT D	  	
		  	2	  	 Second & Spring

Avalara, Inc.

 2.2 Disbursement of the Tenant Improvement Allowance. 

2.2.1 Tenant Improvement Allowance Items. Except as otherwise set forth in this Tenant Work Letter, the Tenant Improvement Allowance
shall be disbursed by Landlord only for the following items and costs (collectively, “Tenant Improvement Allowance Items”): 

2.2.1.1 Payment of the fees of the Architect and the Engineers (as defined below) and payment of the fees incurred by, and the cost of
documents and materials supplied by, Landlord and Landlord’s consultants in connection with the preparation and review of the Construction Drawings (as defined below); 

2.2.1.2 The payment of plan check, permit and license fees relating to construction of the Tenant Improvements; 

2.2.1.3 The cost of construction of the Tenant Improvements, including, without limitation, contractors’ fees and general conditions,
testing and inspection costs, costs of utilities, trash removal, parking and hoists, and the costs of after-hours freight elevator usage; 

2.2.1.4 The cost of any changes in the Base, Shell and Core work when such changes are required by the Construction Drawings (including if
such changes are due to the fact that such work is prepared on an unoccupied basis), such cost to include all direct architectural and/or engineering fees and expenses incurred in connection therewith; 

2.2.1.5 The cost of any changes to the Construction Drawings or Tenant Improvements required by applicable Laws and building codes
(collectively, “Code”); 
 2.2.1.6 The installation of Tenant’s Cables in the Premises; 

2.2.1.7 Sales and use taxes; 

2.2.1.8 The Coordination Fee (as defined below); and 

2.2.1.9 All other costs to be expended by Landlord in connection with the construction of the Tenant Improvements. 

2.2.2 Disbursement of Tenant Improvement Allowance. Subject to Section 2.1 above, during the construction of
the Tenant Improvements, Landlord shall make monthly disbursements of the Tenant Improvement Allowance for Tenant Improvement Allowance Items for the benefit of Tenant and shall authorize the release of monies for the benefit of Tenant as follows:

 2.2.2.1 Monthly Disbursements. So long as no Event of Default has occurred and is continuing, Landlord shall disburse the Tenant
Improvement Allowance to or for the benefit of Tenant in installments not more frequently than once every thirty (30) days based upon Landlord’s receipt of payment applications on AIA Document G702-1992 (together with

  

					
		  	EXHIBIT D	  	
		  	3	  	 Second & Spring

Avalara, Inc.

 
G703 1992) or any updated version thereof or reasonably equivalent document signed by the Architect and the Contractor (as defined below) (“Payment Application”) and subject to
satisfaction of the requirements set forth in clauses (i), (ii), (iii) and (iv) below with respect to Tenant Improvement Allowance Items included in the portion of the Tenant Improvement work that is the subject of each such Payment
Application; provided, however, that Landlord shall not be required to disburse any installment of Tenant Improvement Allowance more than once each thirty (30) days. Other disbursement items, including design fees, permit fees, etc. shall be
consolidated into single invoice with a summary of individual line items with reasonable level of backup as required. Payments shall be net 30 from date of submittal. Landlord’s obligation to disburse installments of the Tenant Improvement
Allowance shall be subject to the following requirements: (i) inspection by Landlord of the Premises and Landlord’s determination in its reasonable judgment that the portion of the Tenant Improvement work that is the subject of the
applicable Payment Application has been completed in strict accordance with the Approved Working Drawings and applicable Code (provided, however, that such determination shall in no way constitute Landlord’s endorsement or certification that
such work has in fact been constructed in conformance with the Approved Working Drawings or applicable Code), and that any repairs to the Premises necessitated by such portion of the Tenant Improvement work have been made to the reasonable
satisfaction of Landlord; (ii) receipt by Landlord of appropriate individual receipts and invoices for the total amount of the Tenant Improvement Allowance Items included in the portion of the Tenant Improvement work that is the subject of the
applicable Payment Application; (iii) conditional lien waivers from the Contractor and all other Tenant Agents (as defined below) furnishing labor or materials with respect to the portion of the Tenant Improvement work that is the subject of
the Payment Application and unconditional lien waivers with respect to all portions of the Tenant Improvement work for which payment has been received (whether from Landlord or Tenant) from the Contractor and all other Tenant Agents furnishing labor
or materials with respect to such Tenant Improvement work and upon Landlord’s request based upon reasonable cause, from individual laborers, in a form reasonably satisfactory to Landlord; and (iv) receipt by Landlord of all other
information reasonably requested by Landlord. Landlord shall disburse the Tenant Improvement Allowance in installments, with checks issued by Landlord to Tenant in an amount equal to the lesser of (A) the amount requested in the Payment
Application less a ten percent (10%) retention (the aggregate amount of which shall be referred to as the “Landlord’s Final Retention”) and (B) the remaining amount of the Tenant Improvement Allowance (not including the
Landlord Final Retention). 
 2.2.2.2 Final Retention. So long as no Event of Default has occurred and is continuing, and provided
Landlord does not reasonably and in good faith dispute the payment of the Landlord’s Final Retention to Tenant based upon noncompliance of any work with the Approved Working Drawings, Landlord’s Final Retention shall be disbursed to or on
behalf of Tenant within thirty (30) days after each and every one of the following conditions has been satisfied: (i) receipt by Landlord of a final Payment Application (the “Final Payment Application”) from Tenant requesting
the Landlord’s Final Retention; (ii) inspection by Landlord of the Premises and Landlord’s determination that the Tenant Improvement work has been completed (including all punch-list items) in strict accordance with the Approved
Working Drawings and applicable Code (provided, however, that such determination shall in no way constitute Landlord’s endorsement or certification that the work has in fact been constructed in conformance with the Approved Working Drawings or
applicable Code), and that any repairs to 

  

					
		  	EXHIBIT D	  	
		  	4	  	 Second & Spring

Avalara, Inc.

 
the Premises necessitated by such Tenant Improvement work have been made to the reasonable satisfaction of Landlord; (iii) receipt by Landlord of a conformed Certificate of Substantial
Completion certified by the Contractor and the Architect (iv) receipt by Landlord from Tenant of a temporary or final certificate of occupancy, or either of their equivalent, or other authorization from the applicable governmental authority for
the Premises allowing Tenant to occupy the Premises for the conduct of its business, or final sign-off by the applicable building inspector of the City of Seattle, Washington on all building permits for the
Tenant Improvement Work, and complying in all respects with the certificate(s) of occupancy, or its equivalent, or other authorization or building permits sign-off as provided above, then covering the
Building; (v) receipt by Landlord of appropriate individual paid receipts and invoices for the total amount of the Tenant Improvement Work; (vi) conditional lien waivers from the Contractor and all other Tenant Agents with respect
to Landlord’s Final Retention and unconditional lien waivers with respect to all other portions of the Tenant Improvement Work for which payment has been received from the Contractor and all other Tenant Agents furnishing labor or materials
with respect to the Tenant Improvement work and upon Landlord’s request based upon reasonable cause, from individual laborers, in a form reasonably satisfactory to Landlord; (vii) receipt by Landlord and Landlord’s approval of a
complete set of the “As Built” drawings for the Premises, including electrical, mechanical, fire sprinklers, fire/life-safety and other applicable subcontractors as required by the provisions of Section 4.3 below;
(viii) receipt by Landlord of all O&M Information (as defined below); (ix) Tenant’s compliance with Landlord’s reasonable standard closeout and completion requirements; and (x) receipt by Landlord of all other information
reasonably requested by Landlord. Landlord shall pay Landlord’s Final Retention with a check issued by Landlord in an amount equal to the lesser of (A) the amount requested in the Final Payment Application, or (B) the amount of any
then remaining Tenant Improvement Allowance. 
 2.2.2.3 Other Terms. Landlord shall only be obligated to make disbursements from the
Tenant Improvement Allowance to the extent costs are incurred by Tenant for Tenant Improvement Allowance Items. Tenant’s submission to Landlord of a Payment Application shall be deemed to be Tenant’s acceptance and approval of the work
furnished and/or materials supplied as set forth in such Payment Application and shall further be deemed Tenant’s certification that the work for which disbursement is being requested has been completed in accordance with the Approved Working
Drawings and applicable Code, provided that the foregoing shall not be deemed to limit Tenant’s rights against the Contractor or any other of Tenant’s Agents with respect to, or approval of, such work and/or materials. Landlord’s
payment of such amounts covered by Tenant’s Payment Applications shall not be deemed Landlord’s approval or acceptance of the work furnished or materials supplied as set forth in the Payment Applications, nor shall Landlord’s payments
be deemed Landlord’s certification that that the work for which the payment is being made has been completed in accordance to the Approved Working Drawings or applicable Code. If an Event of Default exists, Landlord may elect to issue checks to
fund the Tenant Improvement Work jointly to Tenant and the Contractor and, at Landlord’s option, to any Tenant 
 Agents; if no Event of Default exists,
then checks to fund the Tenant Improvement work shall be issued to Tenant only. Landlord shall have the right, without the obligation, to apply all or any portion of the undisbursed Tenant Improvement Allowance remaining from time to time to remedy
any Event of Default; provided, however, it is expressly covenanted and agreed that such remedy by Landlord shall not be deemed to waive, or release, the default of Tenant. 

  

					
		  	EXHIBIT D	  	
		  	5	  	 Second & Spring

Avalara, Inc.

 2.2.2.4. Failure to Disburse tenant Improvement Allowance. If Landlord fails to timely
fulfill its obligation to fund any portion of the Tenant Improvement Allowance, Tenant shall be entitled to deliver notice (the “Payment Notice”) thereof to Landlord. If Landlord still fails to fulfill any such obligation within
thirty (30) days after Landlord’s receipt of the Payment Notice from Tenant and if Landlord fails to deliver notice to Tenant within such thirty (30) day period explaining Landlord’s reasons that Landlord believes that the
amounts described in Tenant’s Payment Notice are not due and payable by Landlord (“Refusal Notice”), Tenant shall be entitled to offset the amount so owed to Tenant by Landlord but not paid by Landlord (or if Landlord delivers a
Refusal Notice but only with respect to a portion of the amount set forth in the Payment Notice and Landlord fails to pay such undisputed amount as required by the next succeeding sentence, the undisputed amount so owed to Tenant), together with
interest at the Interest Rate from the last day of such thirty (30) day period until the date of offset, against Tenant’s next obligations to pay Rent. Notwithstanding the foregoing, Landlord hereby agrees that if Landlord delivers a
Refusal Notice disputing a portion of the amount set forth in Tenant’s Payment Notice, Landlord shall pay to Tenant, concurrently with the delivery of the Refusal Notice, the undisputed portion of the amount set forth in the Payment Notice.
However, if there is an Event of Default under Section 17 of this Lease at the time that such offset would otherwise be applicable, Tenant shall not be entitled to such offset until such Event of Default is cured. If Landlord delivers a Refusal
Notice, and if Landlord and Tenant are not able to agree on the disputed amounts to be so paid by Landlord, if any, within ten (10) days after Tenant’s receipt of a Refusal Notice, Tenant may commence an action with respect to such
disputed amounts. If Tenant prevails in any such action, the award shall include interest at the Interest Rate calculated from the date of funding by Tenant, if any, or the date such amount was otherwise due to Tenant, as the case may be, until the
date of Landlord’s payment of such award. Similarly, if Tenant prevails in any such arbitration, Tenant shall be entitled to apply such award as a credit against Tenant’s obligations to pay Rent, and the award shall include interest at the
Default Rate calculated from the date of funding by Tenant, if any, until the date of Tenant’s application of such amounts as a credit against Rent. 

2.3 Standard Tenant Improvement Package. Landlord has established specifications for the Building standard components (the
“Specifications”) to be used in the construction of the Tenant Improvements in the Premises (collectively, the “Standard Improvement Package”), which Specifications have been received and reviewed by Tenant. The
Tenant Improvements shall comply with the Specifications for all Tenant Improvement components that have been pre-stocked by Landlord. With respect to all other Tenant Improvement components, Tenant shall
utilize materials and finishes that are not of lesser quality than the Specifications. Landlord may make changes to the Specifications for the Standard Improvement Package from time to time. 

2.4 Space Planning Allowance. Landlord shall also reimburse Tenant for an initial space plan for the Premises in an amount not to exceed
Fifteen Cents ($0.15) per rentable square foot of the Premises, which amount shall not be deducted from the Tenant Improvement Allowance. 

  

					
		  	EXHIBIT D	  	
		  	6	  	 Second & Spring

Avalara, Inc.

 SECTION 3 

CONSTRUCTION DRAWINGS 

3.1 Selection of Architect/Construction Drawings. Tenant shall retain an architect/space planner (the “Architect”)
approved by Landlord, which approval shall not be unreasonably withheld, to prepare the Construction Drawings. Tenant shall retain the engineering consultants designated by Landlord (the “Engineers”), including all approved
Design/Build contractors, to prepare all plans and engineering working drawings relating to the structural, mechanical, electrical, plumbing, HVAC, life-safety, and sprinkler work in the Premises. The plans and drawings to be prepared by Architect
and the Engineers hereunder shall be known collectively as the “Construction Drawings.” All Construction Drawings shall comply with the specifications and with the drawing format reasonably established by Landlord, may be submitted
to Landlord electronically, and shall be subject to Landlord’s approval. Tenant and Architect shall verify, in the field, the dimensions and conditions as shown on the relevant portions of the base building plans, and Tenant and Architect shall
be solely responsible for the same, and Landlord shall have no responsibility in connection therewith. Landlord’s review of the Construction Drawings as set forth in this Section 3 shall be for its sole purpose and
shall not imply Landlord’s review of the same, or obligate Landlord to review the same, for quality, design, Code compliance or other like matters. Accordingly, notwithstanding that any Construction Drawings are reviewed by Landlord or its
space planner, architect, engineers and consultants, and notwithstanding any advice or assistance that may be rendered to Tenant by Landlord or Landlord’s space planner, architect, engineers, and consultants, Landlord shall have no liability
whatsoever in connection therewith and shall not be responsible for any omissions or errors contained in the Construction Drawings. 
 3.2
Final Space Plan. Tenant shall supply Landlord with electronic copies, certified by Tenant, of its final space plan for the Premises before any architectural working drawings or engineering drawings have been commenced. The final space plan
(the “Final Space Plan”) shall include a layout and designation of all offices, rooms and other partitioning, their intended use, and equipment to be contained therein. Landlord may request clarification or more specific drawings
for special use items not included in the Final Space Plan. Landlord shall advise Tenant within five (5) Business Days after Landlord’s receipt of the Final Space Plan for the Premises if the same is unsatisfactory or incomplete in any
respect. If Tenant is so advised, Tenant shall promptly (i) cause the Final Space Plan to be revised to correct any deficiencies or other matters Landlord may reasonably require, and (ii) deliver such revised Final Space Plan to Landlord.

 3.3 Final Working Drawings. After the Final Space Plan has been approved by Landlord and Tenant, Tenant shall promptly cause the
Architect and the Engineers to complete the architectural and engineering drawings for the Premises, and cause the Architect to compile a fully coordinated set of architectural, structural, mechanical, electrical and plumbing working drawings in a
form that is complete to allow subcontractors to bid on the work and to obtain all applicable permits for the Tenant Improvements (collectively, the “Final Working Drawings”), and shall submit the same to Landlord for
Landlord’s approval. Tenant shall supply Landlord with four (4) one-half size scaled copies signed by Tenant of such Final Working Drawings and one (1) electronic copy in PDF format. Landlord
shall advise Tenant within ten (10) Business 

  

					
		  	EXHIBIT D	  	
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Avalara, Inc.

 
Days after Landlord’s receipt of the Final Working Drawings for the Premises if the same are unsatisfactory or incomplete in any respect. If Tenant is so advised, Tenant shall promptly (i)
revise the Final Working Drawings in accordance with such review and any disapproval of Landlord in connection therewith, and (ii) deliver four (4) one-half size scaled copies of such revised Final
Working Drawings signed by Tenant and one (1) electronic copy in PDF format to Landlord. Notwithstanding the foregoing, Landlord approval of the Final Working Drawings shall not constitute Landlord’s endorsement or certification that
construction of the Tenant Improvements in accordance with the Final Working Drawings will be in conformance with applicable Code and/or the Restrictions. 

3.4 Approved Working Drawings. The Final Working Drawings shall be approved by Landlord prior to the commencement of construction of the
Premises by Tenant. The Final Working Drawings approved by Landlord are referred to herein as the “Approved Working Drawings”. After approval by Landlord of the Final Working Drawings, Tenant shall promptly submit the Approved
Working Drawings to the appropriate governmental authorities for all applicable building permits. Tenant hereby agrees that neither Landlord nor Landlord’s consultants shall be responsible for obtaining any building permit or certificate of
occupancy for the Premises and that obtaining the same shall be Tenant’s responsibility; provided, however, that Landlord shall cooperate with Tenant in executing permit applications and performing other ministerial acts reasonably necessary to
enable Tenant to obtain any such permit or certificate of occupancy. No changes, modifications or revisions to the Approved Working Drawings may be made without the prior written consent of Landlord, which consent shall not be unreasonably withheld.

 3.5 Tenant’s Removal and Repair Obligations. Within ten (10) days following Landlord’s receipt of the submission to
Landlord for its approval of the Final Space Plan, the Final Working Drawings, any changes, modifications or revisions thereto, or any other change order, notify Tenant whether all or any portion of the Tenant Improvements or any of the changes,
modifications or revisions thereto reflected in such submission will be Non-Removal Items. Landlord’s notice shall indicate whether all or any portion of the Tenant Improvements or any of the changes
modifications or revisions thereto reflected in such submission are Non-Removal Items (other than Hazardous Materials placed on the Premises by Tenant or any other Tenant Party, Cables installed by or for
Tenant, and any Dish/Antenna, all of which Tenant shall in all events remove at the expiration or earlier termination of the Lease and repair and restore the Premises and/or the Building, as applicable, at Tenant’s sole cost and expense as set
forth in the Lease). 
 SECTION 4 

CONSTRUCTION OF THE TENANT IMPROVEMENTS 

4.1 Tenant’s Selection of Contractor and Tenant’s Agents. 

4.1.1 The Contractor. A general contractor shall be retained by Tenant to construct the Tenant Improvements. Such general contractor
(“Contractor”) shall be selected by Tenant from a list of general contractors supplied by Landlord, and Tenant shall deliver to Landlord notice of its selection of the Contractor upon such selection. 

  

					
		  	EXHIBIT D	  	
		  	8	  	 Second & Spring

Avalara, Inc.

 4.1.2 Tenant’s Agents. All subcontractors, laborers, materialmen, and suppliers used
by Tenant (such subcontractors, laborers, materialmen, and suppliers, and the Contractor to be known collectively as “Tenant’s Agents”) must be approved in writing by Landlord, which approval shall not be unreasonably withheld
or delayed; provided that, in any event, Tenant must contract with Landlord’s base building subcontractors for any mechanical, electrical, plumbing, life-safety, structural, heating, ventilation, and
air-conditioning work in the Premises. If requested by Landlord, Tenant’s Agents shall all be union labor in compliance with the master labor agreements existing between trade unions and the local chapter
of the Associated General Contractors of America. 
 4.2 Construction of Tenant Improvements by Tenant’s Agents. 

4.2.1 Construction Contract; Cost Budget. Prior to Tenant’s execution of the construction contract and general conditions with
Contractor (the “Contract”), which Contract shall include a contingency of no less than ten percent (10%) of the total amount of the Contract (the “Contract Price”), Tenant shall submit the Contract to Landlord for
its review and reasonable approval, which approval shall not be unreasonably withheld or delayed. Prior to the commencement of the construction of the Tenant Improvements, and after Tenant has accepted all bids for the Tenant Improvements, Tenant
shall provide Landlord with for its review and approval, which approval shall not be unreasonably withheld, with a detailed breakdown, by trade, of the final costs to be incurred, or which have been incurred, in connection with the design and
construction of the Tenant Improvements (which costs form the basis for the Contract Price (the “Budget Estimate”)). Prior to the commencement of construction of the Tenant Improvements, Tenant shall supply Landlord with cash in an
amount (the “Over-Allowance Amount”) by which the Budget Estimate exceeds the Tenant Improvement Allowance (less any portion thereof already disbursed by Landlord, or in the process of being disbursed by Landlord, on or before the
commencement of construction of the Tenant Improvements). The Over-Allowance Amount shall be disbursed by Landlord prior to the disbursement of any of the then-remaining portion of the Tenant Improvement Allowance, and such disbursement shall be
pursuant to the same procedure as the Tenant Improvement Allowance. In the event that, after the Budget Estimate has been delivered by Tenant to landlord, the costs relating to the design and/or construction of the Tenant Improvements shall
increase, any such increase in excess of the Budget Estimate shall, to the extent it exceeds the remaining balance of the Tenant Improvement Allowance, be paid by Tenant to Landlord as an addition to the Over-Allowance Amount within ten
(10) days after Tenant’s receipt of an invoice therefor and, in any event, prior to the commencement of the construction of such changes. At Landlord’s option, Tenant shall make payments for such additional costs out of its own funds,
but Tenant shall continue to provide Landlord with the documents described in Sections 2.2.2.1(ii), (iii) and (iv) above, for Landlord’s approval, prior to Tenant paying such costs. 

4.2.2 Tenant’s Agents. 

4.2.2.1 Landlord’s General Conditions for Tenant’s Agents and Tenant Improvement Work. Tenant’s and Tenant’s
Agents’ construction of the Tenant Improvements shall comply with the following: (i) the Tenant Improvements shall be constructed in strict accordance with the Approved Working Drawings; (ii) Tenant and Tenant’s Agents shall not,
in any way, interfere with, obstruct, or delay, the work of Landlord’s base building contractor and 

  

					
		  	EXHIBIT D	  	
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Avalara, Inc.

 
subcontractors with respect to the Base, Shell and Core or any other work in the Building; (iii) Tenant’s Agents shall submit schedules of all work relating to the Tenant’s
Improvements to Contractor and Contractor shall, within five (5) Business Days of receipt thereof, inform Tenant’s Agents of any changes that are necessary thereto, and Tenant’s Agents shall adhere to such corrected schedule; and
(iv) Tenant shall abide by all rules made by Landlord’s Building contractor or Landlord’s Building manager with respect to the use of freight, loading dock and service elevators, storage of materials, coordination of work with the
contractors of other tenants, and any other matter in connection with this Tenant Work Letter, including, without limitation, the construction of the Tenant Improvements. 

4.2.2.2 Coordination Fee. Tenant shall pay a logistical coordination fee (the “Coordination Fee”) to Landlord in an
amount equal to the product of one percent (1%) and (ii) the sum of the Tenant Improvement Allowance, the Over-Allowance Amount, as such amount may be increased hereunder, and any other amounts expended by Tenant in connection with the design
and construction of the Tenant Improvements, which Coordination Fee shall be for services relating to the coordination of the construction of the Tenant Improvements. 

4.2.2.3 Indemnity. Tenant’s indemnity of Landlord as set forth in the Lease shall also apply with respect to any and all costs,
losses, damages, injuries and liabilities related in any way to any act or omission of Tenant or Tenant’s Agents, or anyone directly or indirectly employed by any of them, or in connection with Tenant’s nonpayment of any amount arising out
of the Tenant Improvements and/or Tenant’s disapproval of all or any portion of any request for payment. Such indemnity by Tenant, as set forth in the Lease, shall also apply with respect to any and all costs, losses, damages, injuries and
liabilities related in any way to Landlord’s performance of any ministerial acts reasonably necessary (i) to permit Tenant to complete the Tenant Improvements, and (ii) to enable Tenant to obtain any building permit or certificate of
occupancy for the Premises. 
 4.2.2.4 Insurance Requirements. 

4.2.2.4.1 General Coverages. All of Tenant’s Agents shall carry workers’ compensation insurance covering all of their
respective employees, and shall also carry public liability insurance, including property damage, all with limits, in form and with companies as are required to be carried by Tenant as set forth in the Lease. 

4.2.2.4.2 Special Coverages. Tenant shall carry “Builder’s All Risk” insurance in an amount approved by Landlord
covering the construction of the Tenant Improvements, and such other insurance as Landlord may require, it being understood and agreed that the Tenant Improvements shall be insured by Tenant pursuant to the Lease immediately upon completion thereof.
Such insurance shall be in amounts and shall include such extended coverage endorsements as may be reasonably required by Landlord, and in form and with companies as are required to be carried by Tenant as set forth in the Lease. 

4.2.2.4.3 General Terms. Certificates for all insurance carried pursuant to this Section 4.2.2.4 shall be
delivered to Landlord before the commencement of construction of the Tenant Improvements and before the Contractor’s equipment is moved onto the site. All such policies of insurance must contain a provision that the company writing 

  

					
		  	EXHIBIT D	  	
		  	10	  	 Second & Spring

Avalara, Inc.

 said policy will give Landlord thirty (30) days’ prior written notice of any cancellation of such
insurance. In the event that the Tenant Improvements are damaged by any cause during the course of the construction thereof, Tenant shall immediately repair the same at Tenant’s sole cost and expense. All policies carried under this
Section 4.2.2.4 shall insure Landlord and Tenant, as their interests may appear, as well as Contractor and Tenant’s Agents, and shall name as additional insureds Landlord, Landlord’s Property Manager, Landlord’s Asset
Manager, and all mortgagees and ground lessors of the Building. All insurance, except workers’ compensation, maintained by Tenant’s Agents shall preclude subrogation claims by the insurer against anyone insured thereunder. Such insurance
shall provide that it is primary insurance as respects the owner and that any other insurance maintained by owner is excess and non-contributing with the insurance required hereunder. The requirements for the foregoing insurance shall not derogate
from the provisions for indemnification of Landlord by Tenant under Section 4.2.2.3 of this Tenant Work Letter. 
 4.2.3
Governmental Compliance. The Tenant Improvements shall comply in all respects with the following: (i) the Code and other applicable Laws, as each may apply according to the rulings of the controlling public official, agent or other
person; (ii) applicable standards of the American Insurance Association (formerly, the National Board of Fire Underwriters) and the National Electrical Code; and (iii) building material manufacturer’s specifications. 

4.2.4 Inspection by Landlord. Landlord shall have the right to inspect the Tenant Improvements at all times, and from time to time;
provided, however, that Landlord’s failure to inspect the Tenant Improvements shall in no event constitute a waiver of any of Landlord’s rights hereunder nor shall Landlord’s inspection of the Tenant Improvements constitute
Landlord’s approval of the same. Should Landlord disapprove any portion of the Tenant Improvements, Landlord shall notify Tenant in writing of such disapproval and shall specify the items disapproved. Any defects or deviations in, and/or
disapproval by Landlord of, the Tenant Improvements shall be rectified by Tenant at no expense to Landlord; provided, however, that in the event Landlord determines that a defect or deviation exists or disapproves of any matter in connection with
any portion of the Tenant Improvements and such defect, deviation and/or matter might adversely affect the mechanical, electrical, plumbing, heating, ventilating and air-conditioning or life-safety systems of the Building, the structure or exterior
appearance of the Building or any other tenant’s use of such other tenant’s leased premises, Landlord may take such action as Landlord deems necessary, at Tenant’s expense and without incurring any liability on Landlord’s part,
to correct any such defect, deviation and/or matter, including, without limitation, causing the cessation of performance of the construction of the Tenant Improvements until such time as the defect, deviation and/or matter is corrected to
Landlord’s satisfaction. 
 4.2.5 Meetings. Commencing upon the execution of the Lease, Tenant shall hold weekly meetings at a
reasonable time with the Architect and the Contractor regarding the progress of the preparation of Construction Drawings and the construction of the Tenant Improvements, which meetings shall be held at a location designated by Landlord, and Landlord
and/or its agents shall receive prior notice of, and shall have the right to attend, all such meetings, and, upon Landlord’s request, certain of Tenant’s Agents shall attend such meetings. In addition, minutes shall be taken at all such
meetings, a copy of which minutes shall be promptly delivered to Landlord. One such meeting each month shall include the review of Contractor’s current request for payment. 

  

					
		  	EXHIBIT D	  	
		  	11	  	 Second & Spring

Avalara, Inc.

 4.3 Notice of Completion; Copy of “As Built” Plans. At the conclusion of
construction, (i) Tenant shall cause the Architect and the Contractor (A) to update the Approved Working Drawings as necessary to reflect all changes made to the Approved Working Drawings during the course of construction, (B) to
certify to the best of their knowledge that the “record-set” of as-built drawings are true and correct, which certification shall survive the expiration or earlier termination of the Lease, (C) to deliver to Landlord electronic sets
of such as-built drawings within ninety (90) days following issuance of a certificate of occupancy for the Premises, and (D) to deliver to Landlord a computer disk containing the Approved Working Drawings in AutoCAD and PDF formats, and
(ii) Tenant shall deliver to Landlord a copy of all warranties, guaranties, and operating manuals and information relating to the improvements, equipment, and systems in the Premises (collectively, the “O&M Information”).

 4.4 Coordination by Tenant’s Agents with Landlord. Upon Tenant’s delivery of the Contract to Landlord under
Section 4.2.1 of this Tenant Work Letter, Tenant shall furnish Landlord with a schedule setting forth the projected date of the completion of the Tenant Improvements and showing the critical time deadlines for each phase, item or trade
relating to the construction of the Tenant Improvements. 
 SECTION 5 

DELAY OF COMMENCEMENT DATE 

5.1 Commencement Date Delay. The Commencement Date and the Must-Take Commencement Date shall each occur as provided in the Basic Lease
Information; provided, however, that the Commencement Date or the Must-Take Commencement Date, as applicable shall be extended on a day-for-day basis by the number of actual days of delay of the “Substantial Completion of the Tenant
Improvements,” as that term is defined in Section 5.3 below, to the extent such delay in the Commencement Date or the Must-Take Commencement Date, respectively, is caused by a Commencement Date Delay. As used herein, the term
“Commencement Date Delay” shall mean only a “Force Majeure Delay” or a “Landlord Caused Delay,” as that term is defined below in this Section 5.1. As used herein, the term “Force Majeure
Delay” shall mean only an actual delay resulting from strikes, fire, wind, damage or destruction to the Project, explosion, casualty, condemnation, flood, hurricane, tornado, the elements, acts of God or the public enemy, sabotage, war,
invasion, insurrection, rebellion, civil unrest, riots, or earthquakes. As used herein, “Landlord Caused Delay” shall mean actual delays to the extent resulting from the acts or omissions of Landlord including, but not limited to
(i) failure of Landlord to timely approve or disapprove any Construction Drawings; (ii) material and unreasonable interference by Landlord, its agents, employees or contractors with the Substantial Completion of the Tenant Improvements and
which objectively preclude or delay the construction of tenant improvements in the Building by any person, which interference relates to access by Tenant, or Tenant’s Agents to the Building or any Building facilities (including loading docks
and freight elevators) or service (including temporary power and parking areas as provided herein) during normal construction hours, or the use thereof during 

  

					
		  	EXHIBIT D	  	
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Avalara, Inc.

 
normal construction hours; (iii) delays due to the acts or failures to act of Landlord, its agents, employees or contractors including without limitation any such acts or failures to act
with respect to payment of the Tenant Improvement Allowance; and (iv) delays due to lack of reasonably sufficient access to the Premises to allow Tenant to construct the Tenant Improvements on a timely basis. 

5.2 Determination of a Commencement Date Delay. If Tenant contends that a Commencement Date Delay has occurred, Tenant shall notify
Landlord in writing (the “Delay Notice”) of the event that constitutes such Commencement Date Delay. If such actions, inaction or circumstance described in the Delay Notice are not cured by Landlord within one (1) business day
of Landlord’s receipt of the Delay Notice and if such action, inaction or circumstance otherwise qualify as a Commencement Date Delay, then a Commencement Date Delay shall be deemed to have occurred commencing as of the date of Landlord’s
receipt of the Delay Notice and ending as of the date such delay ends. 
 5.3 Definition of Substantial Completion of the Tenant
Improvements. For purposes of this Section 5, “Substantial Completion of the Tenant Improvements” shall mean completion of construction of the Tenant Improvements in the Premises pursuant to the Approved Working
Drawings, with the exception of any punch list items. 
 SECTION 6 

MISCELLANEOUS 
 6.1
Tenant’s Representative. Tenant has designated Ms. Karen Sherwood as its sole representative with respect to the matters set forth in this Tenant Work Letter, who shall have full authority and responsibility to act on behalf of the
Tenant as required in this Tenant Work Letter. 
 6.2 Landlord’s Representative. Landlord has designated Mr. Charlie Foushee
as its sole representative with respect to the matters set forth in this Tenant Work Letter, who, until further notice to Tenant, shall have full authority and responsibility to act on behalf of the Landlord as required in this Tenant Work Letter.

 6.3 Time of the Essence in This Tenant Work Letter. Unless otherwise indicated, all references herein to a “number of
days” shall mean and refer to calendar days. If any item requiring Landlord’s approval is timely disapproved by Landlord, the procedure for revision of the item and approval thereof shall be repeated until the item is approved by Landlord.

 6.4 Tenant’s Lease Default. Notwithstanding any provision to the contrary contained in the Lease, if an Event of Default by
Tenant as described in Section 17 of the Lease or any default by Tenant under this Tenant Work Letter has occurred at any time on or before the Substantial Completion of the Tenant Improvements, then (i) in addition to all other
rights and remedies granted to Landlord pursuant to the Lease, at law and/or in equity, Landlord shall have the right to withhold payment of all or any portion of the Tenant Improvement Allowance and/or Landlord may cause Contractor to cease the
construction of the Premises (in which case, Tenant 

  

					
		  	EXHIBIT D	  	
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Avalara, Inc.

 
shall be responsible for any delay in the Substantial Completion of the Tenant Improvements caused by such work stoppage), and (ii) all other obligations of Landlord under the terms of this
Tenant Work Letter shall be forgiven until such time as such default is cured pursuant to the terms of the Lease (in which case, Tenant shall be responsible for any delay in the Substantial Completion of the Tenant Improvements caused by such
inaction by Landlord). If the Lease is terminated prior to the Commencement Date, for any reason due to an Event of Default by Tenant as described in Section 17 of the Lease or any default by Tenant under this Tenant Work Letter, then so
long as Landlord’s recovery is not duplication of amounts recovered by Landlord pursuant to other remedies available to Landlord under the Lease, at law and/or in equity, Tenant shall pay to Landlord, as additional Rent under the Lease, within
five (5) days of receipt of a statement therefor, any and all costs (if any) incurred by Landlord (including any portion of the Tenant Improvement Allowance disbursed by Landlord) and not reimbursed or otherwise paid by Tenant through the date
of such termination in connection with the Tenant Improvements to the extent planned, installed and/or constructed as of such date of termination, including, but not limited to, any costs related to the removal of all or any portion of the Tenant
Improvements and restoration costs related thereto. 

  

					
		  	EXHIBIT D	  	
		  	14	  	 Second & Spring

Avalara, Inc.

 SCHEDULE 1 TO EXHIBIT D 

LANDLORD WORK 

Second & Spring 
 Landlord’s
Shell & Core Improvements – Floor 1 
  

	 	1.	Tenant Rentable Area Improvements: 

  

	 	i.	Demo all walls within the premises. Tenant to be left with open floor plan as per plan. 

  

	 	ii.	All plumbing, including cooling loops to be cut and capped in concealed location flush with surface. 

  

	 	iii.	All columns to remain in as-Is condition. 

  

	 	iv.	Exposed open ceiling structure: Existing ceiling structure to remain in as is condition. 

  

	 	v.	Demo all existing suspended ACT ceiling within the premise and return ceiling condition to exposed open ceiling. 

  

	 	vi.	Fire alarm: To be in good working condition, but otherwise left in as-is condition. Panel to be operational with adequate capacity for standard office equipment. 

 

	 	vii.	Electrical distribution panel to be located in a mutually agreeable location. Tenant to be allocated 6 watts/sf for plug load and lights. 

 

	 	viii.	HVAC system to be provided to support standard office use. Assumes 1 PC per offices and/or 1 PC per workstation. All conference rooms with a seating capacity of 8 or more shall have their own dedicated thermostat zone.
Assume 1,200 sf maximum interior zone and 800 sf maximum exterior zone. All areas shall have heat and air conditioning. All conditioning to be provided by VAV boxes. All medium pressure loop ducting to be provided and installed by Landlord from
conditioning source to VAV boxes. Tenant responsible for location and installation of low pressure ducting from VAV boxes to diffusers. Landlord to provide Tenant with VAV boxes. Tenant shall identify the location for all VAV boxes. New DDC control
system including main interface, head end controls and high rise controls backbone. 

  

	 	ix.	Demo all flooring in premise. In area of existing/partially existing stone flooring (approx. 9,600 SF), Landlord to provide finished concrete micro-topping floor / non-tinted. At Tenant’s election, Landlord to
alternately provide approx. 9,600SF stone/former stone floor area in “as is” condition, plus lump sum $76,800 finishing allowance ($8/SF x 9,600SF). All raised floor attachment hardware and adhesive to be removed and floors to be left in
broom swept condition. 

  

	 	x.	Remaining chandelier lighting to be left in as is condition. Landlord to provide an allowance of $58,635 for lighting, in addition to the base tenant allowance. 

 

	 	xi.	No fire sprinklers shall be provided within premise per code. In the event that fire sprinklers are required as of the Must-Take Commencement Date per code, then provided that the 1st floor portion of the Premises is used solely for general office use, the same shall be installed per code at Landlord’s cost. Existing sprinklers shall be capped in concealed location flush
with surface. 

  

					
		  	EXHIBIT D	  	
		  	15	  	 Second & Spring

Avalara, Inc.

	 	xii.	All walls ready to receive paint. 

  

	 	xiii.	Landlord, during landlord’s work of delivering an open plan per numeral i, shall remove or encapsulate any existing lead based paint, asbestos or other hazardous materials as determined by Landlord’s work.
Landlord to provide survey of hazardous materials. 

  

	 	xiv.	Building standard manual roll up Mecho shades or mutually agreed to equivalent roller shades to be located on all exterior windows. 

 

	 	2.	Common Area Improvements: 

  

	 	i.	Finished restrooms 

  

	 	ii.	Common lobby/corridor fire sprinklers per code. Landlord to refurbish 1st floor lobby/corridor with new building standard finishes. 

Second & Spring 
 Landlord’s
Shell & Core Improvements – Floor 3 
  

	1.	BUILDING SYSTEMS UPGRADES 

  

	 	A.	Mechanical Systems: 

  

	 	i.	New DDC control system including main interface, head end controls and high rise controls backbone (Flrs 3-5) 

  

	 	ii.	New hydronic heat source loop on each floor plate (flrs 3-5) 

  

	 	iii.	Main air handlers w/ relief installed on each floor (flrs 3-5) including medium pressure ducting HVAC system to be provided to support standard office use. Assumes 1 PC per offices and/or 1 PC per workstation. All
conference rooms with a seating capacity of 8 or more shall have their own dedicated thermostat zone. Assume 1,200 sf maximum interior zone and 800 sf maximum exterior zone. All areas shall have heat and air conditioning. All conditioning to be
provided by VAV boxes. All medium pressure loop ducting to be provided and installed by Landlord from conditioning source to VAV boxes. Tenant responsible for location and installation of low pressure ducting from VAV boxes to diffusers. Landlord to
provide Tenant with VAV boxes. Tenant shall identify the location for all VAV boxes. South main air handler to be raised to 8’-6” minimum. 

  

	 	B.	Electrical Systems: 

  

	 	i.	Main electrical bus riser and distribution to each floor main electrical panel (Floors 3-5) to deliver tenant plug load minimum average 6 watts/sf 

 

	 	ii.	Lighting: OPEN CEILINGS: Landlord to provide $121,314 lump sum lighting allowance in addition to base tenant allowance. 

  

	 	C.	Fire Sprinklers (Floors 3-5): 

  

	 	i.	Fire sprinklers – quick response up-turned heads at code minimum distribution per NFPA13 

  

	 	ii.	Fire panel – full replacement. 

  

					
		  	EXHIBIT D	  	
		  	16	  	 Second & Spring

Avalara, Inc.

	 	D.	Building standard manual roll up Mecho shades or mutually agreed to equivalent roller shades to be located on all exterior windows. 

 

	2.	BUILDING AESTHETIC UPGRADES 

  

	 	A.	Exterior Upgrades: 

  

	 	i.	Terra cotta façade repairs 

  

	 	ii.	Repair / repaint exterior window & decorative trim throughout, on both floors 1 and 3. 

  

	 	iii.	East façade repaint & window replacement, New East entry portal from Plaza 

  

	 	B.	Passenger Elevator Cars: 

  

	 	i.	New passenger car interior cab finish package including (3 ea) sidewalls & rail packages, flooring, ceiling & lighting per plan. 

 

	 	ii.	Repaint elevator door fronts & surrounds per plan. 

  

	 	C.	Lobby Upgrades: 

  

	 	i.	Floor 3: 

  

	 	1.	New east portal entry lobby (if leasing required) 

  

	 	2.	New finishes throughout including flooring, paint, ceilings, lighting, Suite entries per plan 

  

	 	3.	New common lobby furnishings & artwork 

  

	 	4.	Building tenant directories on floors 1 & 3 

  

	 	D.	Restrooms (Floor 3) 

  

	 	xv.	Existing finishes demoed, plumbing capped. Landlord to provide lump sum $90,000 allowance to tenant for restroom fixtures & finishes. 

 

	 	E.	Tenant Rentable Area Improvements (Floor 3): 

  

	 	xvi.	Demo all existing improvements to warm shell condition including interior partitions, ceilings, lighting, flooring 

  

	 	xvii.	Exposed open ceiling structure. All abandoned hangers, joists, etc removed. All fireproofing to be patched and delivered per code. 

  

	 	xviii.	Perimeter & core walls patched, ready to receive paint 

  

	 	xix.	Building standard suite entry (2 ea locations) 

  

					
		  	EXHIBIT D	  	
		  	17	  	 Second & Spring

Avalara, Inc.

 EXHIBIT E 

CONFIRMATION OF COMMENCEMENT DATE 

                       
             , 20             

Avalara, Inc. 

	1100	2nd Avenue, Suite 300 

	Seattle, 	Washington 98101 

	Attention:                                
    	

  

	 	Re:	Lease Agreement (the “Lease”)
                    dated             , 2014, between W2007 SEATTLE OFFICE SECOND
AND SPRING BUILDING REALTY, LLC, a Delaware limited liability company (“Landlord”), and AVALARA, INC., a WASHINGTON CORPORATION (“Tenant”). Capitalized terms used herein but not defined shall be given
the meanings assigned to them in the Lease. 

 Ladies and Gentlemen: 

Landlord and Tenant agree as follows: 

1. Condition of Premises. Tenant has accepted possession of the Premises pursuant to the Lease. Any improvements
required by the terms of the Lease to be made by Landlord have been completed to the full and complete satisfaction of Tenant in all respects except for the punch-list items described on Exhibit A hereto (the “Punch-list
Items”), and except for such Punch-list Items, Landlord has fulfilled all of its duties under the Lease with respect to such initial tenant improvements. Furthermore, Tenant acknowledges that the Premises are suitable for the Permitted Use.

 2. Commencement Date. The Commencement Date of the Lease
is                     , 20        . 

3. Expiration Date. The Term is scheduled to expire on the last day of the th full calendar month of the Term,
which date is                    , 20        . 

4. Contact Person. Tenant’s contact person in the Premises is: 

 

	
	  

	  

	  

	Attention:                                    
                                        

	Telephone:            
-            -            

  

					
		  	EXHIBIT E	  	
		  	1	  	 Second & Spring

Avalara, Inc.

 5. Ratification. Tenant hereby ratifies and confirms its obligations
under the Lease, and represents and warrants to Landlord that it has no defenses thereto. Additionally, Tenant further confirms and ratifies that, as of the date hereof, (a) the Lease is and remains in good standing and in full force and
effect, and (b) Tenant has no claims, counterclaims, setoffs or defenses against Landlord arising out of the Lease or in any way relating thereto or arising out of any other transaction between Landlord and Tenant. 

6. Binding Effect; Governing Law. Except as modified hereby, the Lease shall remain in full effect and this letter
shall be binding upon Landlord and Tenant and their respective successors and assigns. If any inconsistency exists or arises between the terms of this letter and the terms of the Lease, the terms of this letter shall prevail. This letter shall be
governed by the laws of the State of Washington. 

  

					
		  	EXHIBIT E	  	
		  	2	  	 Second & Spring

Avalara, Inc.

 Please indicate your agreement to the above matters by signing this letter in the space indicated
below and returning an executed original to us. 
 Sincerely, 

W2007 SEATTLE OFFICE SECOND AND SPRING BUILDING REALTY, LLC, 
 a
Delaware limited liability company 
  

															
	By:	  	 Walton Seattle Mezz Holdings VI-A, L.L.C.,

a Delaware limited liability company,
 its Sole
Member

			
		  	By:	  	 Walton Seattle Mezz JV VI, L.L.C.,

a Delaware limited liability company,
 its Sole
Member

				
		  		  	By:	  	 Walton Seattle Mezz Investors VI, L.L.C.,

a Delaware limited liability company,
 its Managing
Member

					
		  		  		  	By:	  	 Walton Acquisition REOC Master VI, L.L.C.,

a Delaware limited liability company,
 its Sole
Member

						
		  		  		  		  	By:	  	 Walton Street Real Estate Fund VI-Q, L.P.,

a Delaware limited partnership,
 its Managing Member

							
		  		  		  		  		  	By:	  	 Walton Street Managers VI, L.P.,
 a
Delaware limited partnership,
 its General Partner

								
		  		  		  		  		  		  	By:	  	 WSC Managers VI, Inc.,
 a Delaware
corporation,
 its General Partner

								
		  		  		  		  		  		  		  	By:                                     
                       
		  		  		  		  		  		  		  	Name:                                     
                       
		  		  		  		  		  		  		  	Title:                                     
                           

  

	
	Agreed and accepted:
	
	 AVALARA, INC.,
 a Washington
corporation

	
	By:                                     
                           
	Name:                                     
                       
	Title:                                     
                       

  

					
		  	EXHIBIT E	  	
		  	3	  	 Second & Spring

Avalara, Inc.

 EXHIBIT A TO EXHIBIT E 

PUNCH-LIST ITEMS 
 Please insert
any punch-list items that remain to be performed by Landlord. If no items are listed below by Tenant, none shall be deemed to exist. 

  

					
		  	EXHIBIT E	  	
		  	4	  	 Second & Spring

Avalara, Inc.

 EXHIBIT F 

FORM OF TENANT ESTOPPEL CERTIFICATE 

The undersigned is the Tenant under the Lease (as defined below) between W2007 Seattle Office Second and Spring Building Realty, LLC, a
Delaware limited liability company, as Landlord, and the undersigned as Tenant, for the Premises on the [                     ]floor of the office
building located at 1100 2nd Avenue, Seattle, Washington and commonly known as Second & Spring, and hereby certifies to the actual knowledge of Tenant as follows: 

1. The Lease consists of the original Lease Agreement dated as of
                    , 20         between Tenant and Landlord [‘s predecessor-in-interest] and the following amendments or modifications thereto (if none, please state “none”): 
  

 
  

 
  

 
 The documents listed above are herein collectively
referred to as the “Lease” and represent the entire agreement between the parties with respect to the Premises. All capitalized terms used herein but not defined shall be given the meaning assigned to them in the
Lease. 
 2. The Lease is in full force and effect and has not been modified, supplemented or amended in any way except as provided in
Section 1 above. 
 3. The Term commenced on
                    , 20         and the Term expires, excluding any renewal options, on
                    , 20        , and Tenant has no option, right of first refusal or other right to purchase
all or any part of the Premises or the Project or interest therein, or any option to terminate or cancel the Lease, except as expressly set forth in the Lease. 

4. Tenant currently occupies the Premises described in the Lease and Tenant has not transferred, assigned, or sublet any portion of the
Premises nor entered into any license or concession agreements with respect thereto except as follows (if none, please state “none”): 

5. All monthly installments of Basic Rent, all Additional Rent and all monthly installments of estimated Additional Rent have been paid when
due through                        . The current monthly installment of Basic Rent is
$                    . 
 6. All
conditions of the Lease to be performed by Landlord necessary to the enforceability of the Lease have been satisfied and Landlord is not in default thereunder. In addition, Tenant has not delivered any notice to Landlord regarding a default by
Landlord thereunder. 

  

					
		  	 EXHIBIT F

1
	  	 Second & Spring

Avalara, Inc.

 7. As of the date hereof, there are no existing defenses or offsets, or, to the
undersigned’s knowledge, claims or any basis for a claim, that Tenant has against Landlord and no event has occurred and no condition exists, which, with the giving of notice or the passage of time, or both, will constitute a default under the
Lease. 
 8. No rental has been paid more than thirty (30) days in advance and no security deposit has been delivered to Landlord
except as provided in the Lease. 
 9. If Tenant is a corporation, partnership or other business entity, each individual executing this
Estoppel Certificate on behalf of Tenant hereby represents and warrants that Tenant is a duly formed and existing entity qualified to do business in the state in which the Premises are located if required by law and that Tenant has full right and
authority to execute and deliver this Tenant Estoppel Certificate and that each person signing on behalf of Tenant is authorized to do so. 

10. There are no actions pending against Tenant under any bankruptcy or similar laws of the United States or any state. 

11. Other than in compliance with all applicable laws and incidental to the ordinary course of the use of the Premises, Tenant has not used,
stored, or released any hazardous substances in the Premises. 
 12. All tenant improvement work and other improvement work to be performed
by Landlord under the Lease has been completed in accordance with the Lease and has been accepted by the undersigned and all reimbursements and allowances due to the undersigned under the Lease in connection with any tenant improvement work have
been paid in full. 
 13. Tenant’s current address for receipt of notices, elections, demands or other communications
is                                         . 

Tenant acknowledges that this Tenant Estoppel Certificate may be delivered to Landlord’s current and prospective mortgagees, trust deed
holders, ground lessors and/or investors, or prospective purchasers, or investors or any of their respective lenders, and acknowledges that it recognizes that if so delivered, in addition to Landlord, said mortgagees, trust deed holders, ground
lessors, investors or purchasers, and their respective lenders, successors and assigns will be relying upon the statements contained herein in disbursing loan advances or making a new loan or investing in or acquiring the property of which the
Premises are a part, and/or in accepting an assignment, of the Lease documents as collateral security, and that receipt by it of this Tenant Estoppel Certificate is a condition of making of the loan, disbursing loan proceeds, or investing in, or
acquiring, such property. Tenant hereby agrees to execute such other and further estoppel certificates as any of Landlord’s current or prospective mortgagees, trust deed holders, ground lessors, investors, purchasers or any of their respective
lenders, successors or assigns may require. 

  

					
		  	 EXHIBIT F

2
	  	 Second & Spring

Avalara, Inc.

	
	 TENANT:

	 AVALARA, INC.,

a Washington corporation

 

			
	 By:
	 	  

	 Name:
	 	  

	 Title:
	 	  

  

					
		  	 EXHIBIT F

3
	  	 Second & Spring

Avalara, Inc.

 EXHIBIT G 

PARKING 
 (1)
Tenant Parking Passes. Tenant shall have the option, at Tenant’s sole election, to license from Landlord throughout the Term of the Lease a total of one (1) parking pass for each 2,000 rentable square feet of the Premises, which
pass shall be for parking in non-exclusive, unreserved, first-come first-served parking spaces (collectively, “Tenant Parking Passes”) in the Project’s parking facilities (the
“Parking Facility”), subject to such terms, conditions and regulations as are from time to time applicable to patrons of the Parking Facility. Nothing herein shall require Tenant to purchase any Tenant Parking Passes. The rate
payable by Tenant for Tenant Parking Passes shall be the rate charged from time to time to patrons of the Parking Facility for other non-exclusive, unreserved, first-come, first-served parking spaces (plus all
applicable taxes), which as of the date of this Lease is $334.00 per pass per month. 
 (2) Conditions on Use. The use by Tenant, its
employees, suppliers, shippers or customers and invitees, of the Parking Facility shall be on the terms and conditions reasonably established by Landlord (or Landlord’s agent), and shall be subject to such other agreement between Landlord and
Tenant as may hereinafter be established. Tenant shall not permit or allow any vehicles that belong to or are controlled by Tenant or Tenant’s employees, suppliers, shippers, customers or invitees to be loaded, unloaded or parked in areas other
than those designated for such activities by Landlord. Tenant shall not store or permit its employees to store any automobiles in the Parking Facility, without the prior written consent of Landlord. Except for emergency repairs, Tenant and its
employees shall not perform any work on any automobiles while located in the Parking Facility or on the Property. If it is necessary for Tenant or its employees to leave an automobile in the Parking Facility, overnight, Tenant shall provide Landlord
with prior notice thereof designating the license plate number and model of such automobile. If Tenant permits or allows any of the prohibited activities, then Landlord shall have the right, without notice, in addition to such other rights and
remedies that it may have, to remove or tow away the vehicle involved and charge the reasonable cost to Tenant, which cost shall be payable within thirty (30) days of Tenant’s receipt of an invoice from Landlord, together with reasonable
supporting evidence. Tenant shall have no right to assign or sublicense any of its rights in the Tenant Parking Passes, except as part of a permitted assignment of this Lease or a sublease of the Premises. Landlord shall have the right to terminate
Tenant’s rights hereunder (including termination of any parking agreement related thereto) with respect to any of the Tenant Parking Passes that Tenant desires to sublicense or assign except as part of a permitted assignment of this Lease or a
sublease of the Premises. Landlord may, in its discretion, allocate and assign parking spaces in the Parking Facility among Tenant and other tenants and occupants in the Project so long as Tenant’s right to the Tenant Parking Passes remains
unaffected. Landlord shall also have the right from time to time to promulgate reasonable rules and regulations regarding the Parking Facility, the Tenant Parking Passes and the use thereof, including rules and regulations controlling the flow of
traffic to and from various areas of the Parking Facility, the angle and direction of parking and the like. Tenant shall comply with and cause its employees to comply with all such rules and regulations, all reasonable additions and amendments
thereto, and the terms and provisions hereof. Landlord may elect to provide parking cards or keys to control access to the Parking Facility. In such event, Landlord shall provide Tenant with one (1) card or key for each of the Tenant Parking
Passes, provided that 

  

					
		  	 EXHIBIT G

1
	  	 Second & Spring

Avalara, Inc.

 
Landlord shall have the right to require Tenant or its employees to place a deposit on such access cards or keys and to pay a fee for any lost or damaged cards or keys. Tenant’s use of the
Parking Facility shall be at Tenant’s sole risk, and Landlord shall have no liability for any personal injury or damage or theft of any vehicles or other property occurring in the Parking Facility, regardless of whether such loss or theft
occurs when the Parking Facility or other areas therein are locked or otherwise secured. Except as caused by the negligence or willful misconduct of Landlord and without limiting the terms of the preceding sentence, Landlord shall not be liable for
any loss, injury or damage to persons using the Parking Facility, or automobiles or other property therein, it being agreed that, to the fullest extent permitted by law, the use of the parking spaces in the Parking Facility shall be at the sole risk
of Tenant and its employees. Landlord specifically reserves the right to change the size, configuration, design, layout, location and all other aspects of the Parking Facility and Tenant acknowledges and agrees that Landlord may, without incurring
any liability to Tenant and without any abatement of Rent under this Lease, from time to time, close off or restrict access to the Parking Facility or relocate Tenant’s parking to other parking structures and/or surface parking areas within a
reasonable distance of the Project, for purposes of permitting or facilitating construction, repair, maintenance, alteration or improvements with respect to the Parking Facility, or to accommodate or facilitate renovation, alteration, construction
or other modification of other improvements or structures located at the Project or at the location of the Parking Facility, as the case may be, or if required as a result of any Force Majeure events. If, for any reason, Landlord is unable to
provide Tenant with the use all or any portion of the Tenant Parking Passes for a period in excess of three (3) consecutive Business Days, then Tenant’s obligation to pay for such Tenant Parking Passes shall be abated commencing on the
expiration of such three (3) business-day period and continuing until Tenant’s use thereof is restored, which abatement shall be in full settlement of all claims that Tenant might otherwise have
against Landlord because of Landlord’s failure or inability to provide Tenant with such parking spaces. Except as provided in the immediately preceding sentence, no deductions or allowances shall be made for any days when Tenant and/or any of
its employees does not utilize the Parking Facility or any of the Tenant Parking Passes. Landlord may delegate its responsibilities hereunder to a parking operator, in which case such parking operator shall have all the rights of control attributed
hereby to Landlord. If requested by Landlord, Tenant shall execute and deliver to Landlord or the parking operator, as applicable, the standard parking agreement used by Landlord or the parking operator for the Parking Facility. Landlord shall have
no liability for claims arising through acts or omissions of any such parking operator, except as otherwise provided in this Lease. 

  

					
		  	 EXHIBIT G

2
	  	 Second & Spring

Avalara, Inc.

 EXHIBIT H 

RENT ABATEMENT PROVISION 

The Basic Rent with respect to the Initial Premises shall be conditionally abated during the period commencing on January 1, 2015 and
ending on June 30, 2015. The total amount of such abatement with respect to the Initial Premises shall be $405,009.00 (i.e., $67,501.50 per month). In addition, the Basic Rent with respect to the Must-Take Premises shall be conditionally abated
for the first five (5) full months of the Term following the Must-Take Commencement Date. The total amount of such abatement with respect to the Must-Take Premises shall be $163,267.50 (i.e., $32,653.50 per month). As provided in this Lease,
Tenant shall, concurrently with its execution of this Lease, pay to Landlord Basic Rent for the seventh (7th) month of the Term; thereafter, Tenant shall make Basic Rent payments as otherwise
provided in this Lease. Notwithstanding such abatement of Basic Rent (a) all other sums due under this Lease, including Additional Rent, shall be payable as provided in this Lease, and (b) any increases in Basic Rent set forth in this
Lease shall occur on the dates scheduled therefor. The amount of Basic Rent conditionally abated pursuant to this Exhibit H shall be referred to herein as the “Abated Rent”. 

The Abated Rent provided for in this Exhibit H is conditioned upon Tenant’s full and timely performance of all of its obligations
under this Lease. If at any time during the Term an Event of Default by Tenant occurs and this Lease is terminated as a result thereof, then the abatement of Basic Rent provided for in this Exhibit H shall immediately become void, and Tenant
shall promptly pay to Landlord, in addition to all other amounts due to Landlord under this Lease, the full amount of the Abated Rent. 

Tenant acknowledges and agrees that if Tenant elects to utilize the Additional Improvement Allowance provided in Section 2.1.1 of
Exhibit B, the abatement of Basic Rent provided for herein shall not apply to Tenant’s obligation to pay Additional Monthly Basic Rent, and that Tenant shall be required to commence making monthly payments of Additional Monthly Basic
Rent on the later to occur of (i) the Commencement Date and (ii) the date upon which Tenant exercises its right to utilize such Additional Improvement Allowance. 

At any time prior to the expiration of the periods to which such Abated Rent shall apply, Landlord shall have the right, but not the
obligation (the “Rent Credit Option”), in lieu of all or any portion of the Abated Rent, to elect by notice to Tenant (the “Rent Credit Election Notice”) to disburse to Tenant an amount equal to the
sum of (i) the Basic Rent that would have otherwise been abated pursuant to this Lease during the period specified in the Rent Credit Election Notice (the “Abated Base Rent Payment Amount”), and (ii) the Abated Base Rent
Income Tax Amount, as that term is defined below, if any, either in a lump sum on or before the first day of the first calendar month of the period specified in the Rent Credit Notice or in monthly installments in an amount equal to the Basic Rent
due for each calendar month during the period specified in the Rent Credit Notice on or before the first day of each such calendar month. Within ten (10) business days following Tenant’s receipt of the notice that Landlord has elected to
exercise the Rent Credit Option, Tenant shall deliver to Landlord a written opinion from Tenant’s tax department to Landlord (which opinion shall be certified as true and correct on behalf of Tenant by Tenant’s chief financial officer)
setting forth with reasonably particularity 

  

					
		  	 EXHIBIT H

1
	  	 Second & Spring

Avalara, Inc.

 
the income tax liability, if any, that Tenant would incur strictly as a result of receiving the payment of the Abated Base Rent Payment Amount (the “Abated Base Rent Income Tax
Amount”) together with Tenant’s corresponding obligation to pay Basic Rent for the Premises, and Tenant’s failure to provide such written opinion with the foregoing ten (10) business day period shall result in Landlord having
no obligation to pay the Abated Base Rent Income Tax Amount. If Landlord exercises the Rent Credit Option, and so long as Landlord disburses said amount(s) as set forth hereinabove, then during the period specified in the Rent Credit Election Notice
(a) the abatement of Basic Rent set forth herein shall be of no force or effect and (b) Tenant shall pay all of the Basic Rent due under this Lease at the time and in the manner set forth in the Basic Lease Information of this Lease,
without regard to any Abated Rent. Tenant shall reasonably cooperate with Landlord, including reasonable amendments to this Lease, to permit Landlord to exercise the Rent Credit Option in a manner reasonably required by Landlord or any
Landlord’s Mortgagee. 

  

					
		  	 EXHIBIT H

2
	  	 Second & Spring

Avalara, Inc.

 EXHIBIT I 

EXTENSION OPTION 

(1) Option Term. Subject to the terms and conditions set forth below, Tenant shall have one (1) option (an “Extension
Option”) to extend the Term for a period of five (5) years (the “Option Term”). If Tenant properly exercises the Extension Option, all of the terms, covenants and conditions of this Lease shall continue in full force
and effect during the Option Term, including provisions regarding payment of Rent, which shall remain payable on the terms herein set forth, except that (a) the Basic Rent payable by Tenant during the Option Term shall be as calculated in
accordance with Section 3 and Section 4 below, (b) Tenant shall continue to possess and occupy the Premises in their existing condition, “as is” as of the commencement of such Option
Term, and Landlord shall have no obligation to repair, remodel, improve or alter the Premises, to perform any other construction or other work of improvement upon the Premises or the Project (other than as set forth in this Lease), and
(c) Tenant shall have no further rights to extend the Term of this Lease after the expiration of the Option Term. 
 (2)
Exercise. To exercise the Extension Option, Tenant must deliver an irrevocable, unconditional binding notice to Landlord (“Exercise Notice”) not sooner than fifteen (15) months, nor later than nine (9) months, prior
to the Expiration Date, the time of such exercise being of the essence. If Tenant fails to timely give its notice of exercise with respect to the Extension Option, Tenant will be deemed to have waived the Extension Option. 

(3) Market Rate Calculation. The Basic Rent payable by Tenant for the Premises during the Option Term shall be the Market Rate (as
defined below) for the Premises, valued as of the commencement of the Option Term, determined in the manner hereinafter provided. As used in this Exhibit I, the term “Market Rate” shall mean the annual amount of Basic Rent at
which tenants, as of the commencement of the Option Term, are leasing non-sublease, non-encumbered, non-equity space under then-prevailing ordinary rental market
practices (e.g., not pursuant to extraordinary rental, promotional deals or other concessions to tenants that deviate from what is the then-prevailing ordinary practice), at arm’s length, that is comparable to the Premises within the Building
or in Comparison Buildings, based upon binding lease transactions for tenants in the Comparison Buildings that, where possible, commence or are to commence within six (6) months prior to or within six (6) months after the commencement of
the Option Term (the “Comparison Leases”). Rental rates payable under Comparison Leases shall be adjusted to account for variations between this Lease and the Comparison Leases with respect to: (a) the length of the Option Term
compared to the renewal or extension term of the Comparison Leases; (b) rental structure, including, rental rates per rentable square foot (including type, gross or net, and if gross, adjusting for base year or expense stop), additional rental,
annual rent adjustments, escalation provisions, all other payments and escalations; (c) the size of the Premises compared to the size of the premises of the Comparison Leases; (d) free rent, moving expenses and other cash payments,
allowances or other monetary concessions affecting the rental rate; (e) the age and quality of construction of the buildings; and (f) leasehold improvements and/or allowances, taking into account the value of existing leasehold
improvements to the existing tenant. 

  

					
		  	 EXHIBIT I

1
	  	 Second & Spring

Avalara, Inc.

 (4) Basic Rent Determination. The Basic Rent payable by Tenant for the Premises during the
Option Term shall be determined as follows: 
 (a) If Tenant provides Landlord with its Exercise Notice, then, prior to the commencement of
the Option Term, Landlord shall deliver to Tenant a good faith written proposal of the Market Rate. Within twenty-one (21) days after receipt of Landlord’s proposal, Tenant shall notify Landlord in
writing (1) that Tenant accepts Landlord’s proposal or (2) that Tenant elects to submit the determination of Market Rate to arbitration in accordance with Section 4(b) below. If Tenant does not give Landlord
a timely notice in response to Landlord’s proposal, Landlord’s proposal of Market Rate shall be binding upon Tenant. 
 (b) In the
event Tenant elects to submit the determination of Market Rate to arbitration, Landlord and Tenant shall attempt to agree upon the Market Rate using reasonable good-faith efforts. If Landlord and Tenant fail to reach agreement within thirty
(30) days following Tenant’s objection to Landlord’s Market Rate (the “Outside Agreement Date”), then each party shall make a separate determination of the Market Rate within five (5) business days after the
Outside Agreement Date, and such determinations shall be submitted to arbitration in accordance with Sections (4)(b)(i) through (4)(b)(vii) below. 

(i) Landlord and Tenant shall each appoint one arbitrator who shall by profession be a real estate broker, appraiser or attorney who shall
have been active over the five (5) year period ending on the date of such appointment in the leasing (or appraisal, as the case may be) of the Comparison Buildings. The determination of the arbitrators shall be limited solely to the issue of whether
Landlord’s or Tenant’s submitted Market Rate, is the closest to the actual Market Rate as determined by the arbitrators, taking into account the requirements of Section (3), above. Each such arbitrator shall be appointed within fifteen
(15) days after the Outside Agreement Date. Landlord and Tenant may consult with their selected arbitrators prior to appointment and may select an arbitrator who is favorable to their respective positions. The arbitrators so selected by
Landlord and Tenant shall be deemed the “Advocate Arbitrators”. 
 (ii) The two Advocate Arbitrators so appointed shall be
specifically required pursuant to an engagement letter within ten (10) days of the date of the appointment of the last appointed Advocate Arbitrator agree upon and appoint a third arbitrator (“Neutral Arbitrator”) who shall be
qualified under the same criteria set forth hereinabove for qualification of the two Advocate Arbitrators except that neither the Landlord or Tenant or either party’s Advocate Arbitrator may, directly or indirectly, consult with the Neutral
Arbitrator prior to subsequent to his or her appearance. The Neutral Arbitrator shall be retained via an engagement letter jointly prepared by Landlord’s counsel and Tenant’s counsel. 

(iii) The three arbitrators shall within thirty (30) days of the appointment of the Neutral Arbitrator reach a decision as to Market Rate
and determine whether the Landlord’s or Tenant’s determination of Market Rate as submitted pursuant Section 4(b), above, is closest to Market Rate as determined by the arbitrators and simultaneously publish a ruling
(“Award”) indicating whether Landlord’s or Tenant’s submitted Market Rate is closest to the Market Rate as determined by the arbitrators. Following notification of the Award, the Landlord’s or Tenant’s submitted
Market Rate determination, whichever is selected by the arbitrators as being closest to Market rent shall become the then applicable Market Rate. 

  

					
		  	 EXHIBIT I

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 (iv) The Award issued by the majority of the three arbitrators shall be binding upon Landlord
and Tenant. 
 (v) If either Landlord or Tenant fail to appoint an Advocate Arbitrator within fifteen (15) days after the Outside
Agreement Date, either party may petition the presiding judge of the Superior Court of King County to appoint such Advocate Arbitrator subject to the criteria in Section (4)(b)(4)(i), above, or if he or she refuses to act, either party may petition
any judge having jurisdiction over the parties to appoint such Advocate Arbitrator. 
 (vi) If the two Advocate Arbitrators fail to agree
upon and appoint the Neutral Arbitrator, then either party may petition the presiding judge of the Superior Court of King County to appoint the Neutral Arbitrator, subject to criteria in Section (4)(b)(4)(i) above, or if he or she refuses to act,
either party may petition any judge having jurisdiction over the parties to appoint such arbitrator. 
 (vii) The cost of arbitration shall
be paid by Landlord and Tenant equally. 
 (c) Until the matter is resolved by agreement between the parties or a decision is rendered in any
arbitration commenced pursuant to this Exhibit I, Tenant’s monthly payments of Basic Rent shall be in an amount equal to Landlord’s determination of the Market Rate. Within ten (10) Business Days following the resolution of
such dispute by the parties or the decision of the arbitrator, as applicable, Tenant shall pay to Landlord, or Landlord shall pay to Tenant, the amount of any deficiency or excess, as the case may be, in the Basic Rent theretofore paid. 

(5) Rights Personal to Tenant. The Extension Option is personal to, may be exercised only by, the Original Tenant or by a Permitted
Transferee to whom Original Tenant’s entire interest in this Lease or the Premises has been transferred in a Permitted Transfer under the terms of Section 10(h) of this Lease, shall not be assigned or otherwise
transferred, voluntarily or involuntarily to, or exercised by, any person other than the Original Tenant or such Permitted Transferee, and shall only be exercisable if the Original Tenant or such Permitted Transferee occupies not less than
seventy-five percent (75%) of the Premises at the time Landlord or such Permitted Transferee receives the Exercise Notice and at the commencement date of the Option Term. If the Original Tenant shall transfer this Lease (or any interest therein), or
any portion of the Premises (other than a transfer of its entire interest in this Lease or the Premises to a Permitted Transferee pursuant to a Permitted Transfer), then simultaneously with such transfer Tenant’s Extension Option shall
terminate and be of no further force or effect. No transferee of Tenant’s interest in this Lease (or any interest therein) or any portion of the Premises (other than a Permitted Transferee to whom Original Tenant’s entire interest in this
Lease or the Premises has been transferred in a Permitted Transfer) shall have any right to extend the Term pursuant to this Exhibit I. 

(6) Conditions of Exercise. Notwithstanding anything in this Exhibit I to the contrary, if an Event of Default has occurred (and
has not been cured within the applicable notice and cure period) on or prior to the date Tenant’s Exercise Notice is received by Landlord or at any time thereafter until the commencement of the Option Term, Landlord shall have the right,

  

					
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in addition to all of its other rights and remedies under this Lease (but not the obligation), to unilaterally revoke Tenant’s exercise of the Extension Option, in which case this Lease
shall expire on the Expiration Date, unless earlier terminated pursuant to the terms hereof, and Tenant shall have no further rights under this Lease to renew or extend the Term. 

  

					
		  	 EXHIBIT I

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 EXHIBIT J 

EARLY TERMINATION OPTION 

(1) Generally. Subject to the terms and conditions set forth in this Exhibit J, and provided that Tenant
has not exercised the Right of First Offer set forth in Exhibit K of this Lease at any time on or after April 30, 2018, Tenant shall have the one-time right (the “Early Termination
Option”) to terminate this Lease with respect to the entire Premises in accordance with the provisions of this Exhibit J. The “Termination Date” shall mean April 30, 2020. Tenant shall have the right to cause
the Early Termination Option to apply to only a portion of the Premises, in accordance with the terms set forth below. In the event that Tenant does exercise its rights under Exhibit K of this Lease to lease any First Offer Space at any time
on or after April 30, 2018, then this Exhibit J shall automatically terminate and be of no further force or effect. 
 (2)
Exercise of Termination Option. Tenant may exercise the Early Termination Option only by (i) delivering to Landlord an irrevocable notice of such exercise (the “Termination Notice”) no later than
April 30, 2019, and (ii) paying to Landlord the Termination Payment (as that term is defined below). For purposes hereof, the “Termination Payment” shall be an amount equal to the sum of (A) the unamortized amount as
of the Termination Date of the Tenant Improvement Allowance (including, without limitation, any Additional Improvement Allowance), (B) the unamortized amount as of the Termination Date of the Abated Rent provided to Tenant as set forth in Exhibit
H attached hereto, (C) the unamortized amount as of the Termination Date of the leasing commissions paid by Landlord in connection with this Lease, (D) interest on the amounts in items (A), (B) and (C) above, computed based on an
eight percent (8%) annual interest rate, and (E) an amount equal to two (2) months of the Basic Rent that would have otherwise been applicable to the Premises immediately following the Termination Date. 

In addition, in the event that Tenant has exercised the Right of First Offer prior to April 30, 2018, then with respect to the First
Offer Space leased pursuant to any such exercise, the Termination Payment shall also include an amount equal to the sum of (I) the unamortized amount as of the Termination Date of any improvement allowance provided by Landlord to Tenant in
connection with the First Offer Space, (II) the unamortized amount as of the Termination Date of any abated rent (if any) provided to Tenant in connection with the First Offer Space, (III) the unamortized amount as of the Termination Date
of the leasing commissions paid by Landlord in connection with the First Offer Space, (IV) interest on the amounts in items (I), (II) and (III) above, computed based on an eight percent (8%) annual interest rate, and (V) an amount
equal to two (2) months of the Basic Rent that would have otherwise been applicable to the First Offer Space immediately following the Termination Date. 

The Termination Payment shall be payable to Landlord no later than twenty (20) days following Landlord’s receipt of the Termination
Notice. The amounts in (A), (B) and (C), above, with respect to the Initial Premises, shall be amortized on a straight-line basis over the period commencing on the first day of the seventh (7th)
full calendar month of the initial Term and ending on the last day of the initial Term, and the amounts in (A), (B) and (C), above, with respect to the Must-Take Premises, shall be amortized on a straight-line basis over the period 

  

					
		  	 EXHIBIT J

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 commencing on the first day of the sixth (6th) full calendar
month following the Must-Take Commencement Date and ending on the last day of the initial Term. The amounts in (I), (II) and (III), above, with respect to any First Offer Space, shall be amortized on a straight-line basis over the period commencing
on the first day of the Term of the First Offer Space and ending on the last day of the initial Term. 
 The Termination Payment shall be
payable to Landlord no later than twenty (20) days following Landlord’s receipt of the Termination Notice. The amounts in (A), (B) and (C), above, with respect to the Initial Premises, shall be amortized on a straight-line basis over the
period commencing on the first day of the seventh (7th) full calendar month of the initial Term and ending on the last day of the initial Term, and the amounts in (A), (B) and (C), above, with
respect to the Must-Take Premises, shall be amortized on a straight-line basis over the period commencing on the first day of the sixth (6th) full calendar month following the Must-Take
Commencement Date and ending on the last day of the initial Term. 
 (3) Effectiveness of Termination. If Tenant timely
exercises the Termination Option and timely pays the Termination Payment, then effective as of the Termination Date, the Lease with respect to the entire Premises shall end and expire, and Tenant’s estate in and possession of the entire
Premises shall terminate and be wholly extinguished with the same force and effect as if such date were initially set forth in the Lease as the Expiration Date. On the Termination Date, Tenant shall surrender and deliver vacant possession of the
entire Premises to Landlord in the condition required by the Lease as if such date were the Expiration Date. If Tenant fails to surrender, vacate and deliver to Landlord possession of the entire Premises in such condition on the Termination Date,
then Tenant shall be deemed to be a holdover in the entire Premises and Landlord shall have the right to exercise any of its rights and remedies at law and in equity (including, without limitation, its rights and remedies under Section 22 of
this Lease). In the event that Tenant exercises such Termination Option, then effective as of the date of Tenant’s Termination Notice, Tenant’s rights under Exhibit K (Right of First Offer) shall automatically terminate, and
Exhibit K of this Lease shall automatically terminate and be of no further force or effect. 
 (4) Rights Personal to
Tenant. The Early Termination Option is personal to, may be exercised only by, the Original Tenant or by a Permitted Transferee to whom Original Tenant’s entire interest in this Lease or the Premises has been transferred in a
Permitted Transfer under the terms of Section 10(h) of this Lease, shall not be assigned or otherwise transferred, voluntarily or involuntarily to, or exercised by, any person other than the Original Tenant or such
Permitted Transferee. If the Original Tenant shall transfer this Lease (or any interest therein), or any portion of the Premises (other than a transfer of its entire interest in this Lease or the Premises to a Permitted Transferee pursuant to a
Permitted Transfer), then simultaneously with such transfer Tenant’s Extension Option shall terminate and be of no further force or effect. No transferee of Tenant’s interest in this Lease (or any interest therein) or any portion of the
Premises (other than a Permitted Transferee to whom Original Tenant’s entire interest in this Lease or the Premises has been transferred in a Permitted Transfer) shall have any right to terminate the Term pursuant to this Exhibit J. 

  

					
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 EXHIBIT K 

RIGHT OF FIRST OFFER 

(1) Right of First Offer. So long as there is at least two (2) years remaining on the Term, as may be extended by Tenant (the
“First Offer Period”), Tenant shall have an on-going right of first offer (“Right of First Offer”) to lease any space located on the first (1st) floor of the Building shown on the demising plans in Schedule 1 attached hereto (each such space a “First Offer Space”), in accordance with, and subject to, the terms and
conditions set forth in this Exhibit K in the event that the First Offer Space becomes “available for lease to third parties” (as defined below) and Landlord receives a request for proposal, a letter of intent, or a
similar offer for the leasing of such space from a qualified third party (a “Third Party Offer”). For purposes hereof, a First Offer Space shall become “available for lease to third parties” if (a) Landlord is free to
lease the space to the general public unencumbered by any renewal rights, extension rights, expansion rights, rights of first offer, rights of first refusal or other similar rights in favor of other tenants in the Project, whether or not the renewal
or extension of the existing tenant’s lease is pursuant to an express written provision in such tenant’s lease, and without regard to whether such renewal or extension is characterized by the parties thereto as a “renewal”,
“extension” or “new lease”; and (b) Landlord intends to market the space to the general public (i.e., the space will not be occupied by Landlord, any of its Affiliates or successors, or by an existing tenant of the space
(all of the foregoing described in clauses (a) and 

	(b)	being herein collectively referred to as “Superior Rights”). 

 (2) First
Offer Notice. Landlord shall give Tenant notice (a “First Offer Notice”) at such time as (i) First Offer Space will or has become available to third parties (as such availability is determined by Landlord), and/or
(ii) Landlord receives a Third Party Offer for such First Offer Space. Pursuant to such First Offer Notice, Landlord shall offer to lease to Tenant the applicable First Offer Space. A First Offer Notice may be conditioned on the failure of a
holder of Superior Rights to lease all or any portion of the First Offer Space identified in such First Offer Notice. The First Offer Notice shall set forth the material economic terms upon which Landlord would be prepared to lease such First Offer
Space to Tenant for the remainder of the Term (the “Economic Terms”), including, without limitation (a) the anticipated date upon which possession of such First Offer Space will be available (the “Anticipated Delivery
Date”), (b) the tenant improvements, if any, Landlord proposes to install, and/or tenant improvements allowance Landlord proposes to pay, if any, for such First Offer Space, if any, (c) a good faith proposal of the First Offer Rent (as
defined below) for such First Offer Space, and (d) any other material economic conditions or provisions relating to the leasing of such First Offer Space that vary from the provisions of this Lease. The term of the lease for the First Offer
Space shall terminate concurrently with the Term of this Lease. 
 (3) First Offer Rent. The Basic Rent payable by Tenant for the
First Offer Space (the “First Offer Rent”) during the First Offer Term (as defined below) shall be the Market Rate (as defined below) for the First Offer Space, valued as of the commencement of the First Offer Term, determined in
the manner hereinafter provided. As used in this Exhibit K, the term “Market Rate” shall mean the annual amount of Basic Rent at which tenants, as of the commencement of the First Offer Term, are leasing non-sublease, non-encumbered, non-equity space under then-prevailing ordinary rental market practices (e.g., not pursuant to
extraordinary 

  

					
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rental, promotional deals or other concessions to tenants that deviate from what is the then-prevailing ordinary practice), at arm’s length, that is comparable to the First Offer Space
within the Building or in Comparison Buildings, based upon binding lease transactions for tenants in the Comparison Buildings that, where possible, commence or are to commence within six (6) months prior to or within six (6) months after
the commencement of the First Offer Term (as used in this Exhibit K, the “Comparison Leases”). Rental rates payable under Comparison Leases shall be adjusted to account for variations between this Lease and the Comparison
Leases with respect to: (a) the length of the First Offer Term compared to the renewal or extension term of the Comparison Leases; (b) rental structure, including, rental rates per rentable square foot (including type, gross or net, and if
gross, adjusting for base year or expense stop), additional rental, annual rent adjustments, escalation provisions, all other payments and escalations; (c) the size of the First Offer Space compared to the size of the premises of the Comparison
Leases; (d) free rent, moving expenses and other cash payments, allowances or other monetary concessions affecting the rental rate; (e) the age and quality of construction of the buildings; and (f) leasehold improvements and/or allowances,
taking into account the value of existing leasehold improvements to the existing tenant. 
 (4) Procedure for Acceptance. On or before
the date that is five (5) Business Days after Tenant’s receipt of a First Offer Notice (the “Election Date”), Tenant may, at its option, deliver an irrevocable, unqualified, unconditional notice to Landlord
electing to lease the First Offer Space identified in such First Offer Notice upon the terms set forth in the First Offer Notice (“Tenant’s Election Notice”), which Tenant’s Election Notice shall affirmatively state that
Tenant is either (A) accepting Landlord’s Market Rate determination (as set forth in the First Offer Notice) as the First Offer Rent, or (B) rejecting Landlord’s Market Rate determination (as set forth in the First Offer Notice)
as the First Offer Rent, and if Tenant rejects Landlord’s Market Rate determination (as set forth in the First Offer Notice), then the parties shall follow the procedure set forth in Section 9 below, and the Market Rate shall be determined
in accordance with the terms of Section 9 below. Tenant may exercise its Right of First Offer only with respect to all of the First Offer Space identified in such First Offer Notice and only upon the terms set forth in the First Offer Notice.
If Tenant does not deliver Tenant’s Election Notice to Landlord on or before the Election Date, then Tenant shall have no further rights hereunder to lease the First Offer Space identified in a First Offer Notice. Time is of the essence of this
provision and Tenant acknowledges and agrees that Landlord will have no obligation to lease to Tenant any First Offer Space identified in a First Offer Notice if Tenant does not deliver Tenant’s Election Notice to Landlord on or before the
Election Date. Any qualified or conditional acceptance by Tenant of a First Offer Notice shall be deemed to be a counter-offer to, and a rejection of, such First Offer Notice. If Tenant’s Election Notice is not a written, unqualified,
unconditional, irrevocable acceptance of the First Offer Notice, or is not delivered on or before 5:00 p.m. on the Election Date, then Tenant shall be deemed to have rejected the First Offer Notice. If Tenant rejects or is deemed to have rejected a
First Offer Notice for any reason, the Right of First Offer shall automatically terminate and be of no further force or effect with respect to the First Offer Space identified therein and Landlord shall thereafter have the right to lease all or any
portion of such First Offer Space to any person on any terms and conditions Landlord desires (including terms and conditions more favorable than the terms and conditions set forth in such First Offer Notice); provided, however, in the event that
Landlord fails to enter into a lease with a third-party for all or any portion of such First Offer Space within six (6) months following the date on which Tenant rejects (or is deemed to have rejected) a First

  

					
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Offer Notice, then Tenant’s Right of First Offer with respect to such First Offer Space shall automatically renew and Landlord shall again be obligated to provide Tenant with a First Offer
Notice for such First Offer Space in the event that such First Offer Space becomes available for lease to third parties and Landlord has received a Third Party Offer for such First Offer Space. 

(5) Amendment to Lease. If Tenant delivers a Tenant’s Election Notice prior to the Election Date, Landlord shall prepare and Tenant
shall promptly execute an amendment to this Lease to add the First Offer Space upon the terms set forth in the First Offer Notice, and to modify the applicable provisions of this Lease to reflect the changes in the Rent, area of the Premises,
Tenant’s Proportionate Share and other appropriate terms. 
 (6) Additional Conditions of Exercise. Notwithstanding any provision
of this Exhibit K to the contrary, if an Event of Default has occurred either at the time a First Offer Notice would otherwise be required to be sent under this Exhibit K, or any other time following Tenant’s exercise of its right
to lease First Offer Space and prior to the date upon which possession of such First Offer Space is to be delivered to Tenant, Landlord shall have, in addition to all of Landlord’s other rights and remedies provided in this Lease, the right to
terminate Tenant’s rights under this Exhibit K, and in such event Landlord shall not be required to deliver the First Offer Notice or to deliver possession of such First Offer Space to Tenant. If not earlier terminated, the rights of
Tenant pursuant to this Exhibit K shall automatically terminate on the Expiration Date. Nothing contained in this Exhibit K shall be deemed to impose any obligation on Landlord to refrain from negotiating with the existing tenant of
the First Offer Space, to withhold the First Offer Space from the market, or to take any other action or omit to take any other action in order to make the First Offer Space available to Tenant. 

(7) Additional Security. In the event that Tenant elects to exercise its Right of First Offer, Landlord shall have the right to review
Tenant’s audited financial statements (as provided in Section 26(q) of this Lease), and thereafter, Landlord shall have the right to require that Tenant provide Landlord with additional financial security, such as a letter of credit or
guaranty, for Tenant’s rent obligations with respect to the First Offer Space. Such determination to be made by reviewing the extent of financial security then generally being imposed in comparable transactions in the Comparison Building upon
tenants of comparable financial condition and credit history to the then existing financial condition and credit history of Tenant, with appropriate adjustments to account for differences in the then-existing financial condition of Tenant and such
other tenants. In the event that Landlord requires such additional financial security, then Tenant shall deliver such additional financial security to Landlord on or before the date on which Landlord delivers the First Offer Space to Tenant. 

(8) Rights Personal to Tenant. The Right of First Offer is personal to, may be exercised only by, the Original Tenant or by a Permitted
Transferee to whom Original Tenant’s entire interest in this Lease or the Premises has been transferred in a Permitted Transfer under the terms of Section 10(h) of this Lease, shall not be assigned or otherwise
transferred, voluntarily or involuntarily to, or exercised by, any person other than the Original Tenant or such Permitted Transferee, and shall only be exercisable if the Original Tenant or such Permitted Transferee occupies not less than
seventy-five percent (75%) of the Premises at the time of such exercise and at the time the First Offer Space identified therein is to be added to the Premises as provided in this Exhibit K. If the Original Tenant shall transfer this Lease
(or any interest therein), or any 

  

					
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portion of the Premises (other than a transfer of its entire interest in this Lease or the Premises to a Permitted Transferee pursuant to a Permitted Transfer), then simultaneously with such
transfer Tenant’s Right of First Offer shall terminate and be of no further force or effect. No transferee of Tenant’s interest in this Lease (or any interest therein) or any portion of the Premises (other than a Permitted Transferee to
whom Original Tenant’s entire interest in this Lease or the Premises has been transferred in a Permitted Transfer) shall have any right to lease First Offer Space pursuant to this Exhibit K. 

(9) Determination of First Offer Rent. In the event that Tenant exercises the Right of First Offer, but the Tenant’s Election
Notice contains Tenant’s rejection of Landlord’s Market Rate determination (as set forth in the First Offer Notice), then the Market Rate for purposes of this Exhibit K shall be determined as follows: 

(a) Landlord and Tenant shall attempt to agree upon the Market Rate using reasonable good-faith efforts. If Landlord and Tenant fail to reach
agreement within thirty (30) days following Tenant’s objection to Landlord’s Market Rate determination (the “Outside Agreement Date”), then each party shall make a separate determination of the Market Rate for the
First Offer Space within five (5) business days after the Outside Agreement Date, and such determinations shall be submitted to arbitration in accordance with Sections 9(b) through 9(h) below. 

(b) Landlord and Tenant shall each appoint one arbitrator who shall by profession be a real estate broker, appraiser or attorney who shall have
been active over the five (5) year period ending on the date of such appointment in the leasing (or appraisal, as the case may be) of the Comparison Buildings. The determination of the arbitrators shall be limited solely to the issue of whether
Landlord’s or Tenant’s submitted Market Rate, is the closest to the actual Market Rate for the First Offer Space as determined by the arbitrators, taking into account the requirements of Section (3), above. Each such arbitrator shall be
appointed within fifteen (15) days after the Outside Agreement Date. Landlord and Tenant may consult with their selected arbitrators prior to appointment and may select an arbitrator who is favorable to their respective positions. The
arbitrators so selected by Landlord and Tenant shall be deemed the “Advocate Arbitrators”. 
 (c) The two
Advocate Arbitrators so appointed shall be specifically required pursuant to an engagement letter within ten (10) days of the date of the appointment of the last appointed Advocate Arbitrator agree upon and appoint a third arbitrator
(“Neutral Arbitrator”) who shall be qualified under the same criteria set forth hereinabove for qualification of the two Advocate Arbitrators except that neither the Landlord or Tenant or either party’s Advocate Arbitrator may,
directly or indirectly, consult with the Neutral Arbitrator prior to subsequent to his or her appearance. The Neutral Arbitrator shall be retained via an engagement letter jointly prepared by Landlord’s counsel and Tenant’s counsel. 

(d) The three arbitrators shall within thirty (30) days of the appointment of the Neutral Arbitrator reach a decision as to Market Rate
and determine whether the Landlord’s or Tenant’s determination of Market Rate as submitted pursuant Section 9(a), above, is closest to Market Rate as determined by the arbitrators and simultaneously publish a ruling
(“Award”) indicating whether Landlord’s or Tenant’s submitted Market Rate is closest to the Market Rate as 

  

					
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determined by the arbitrators. Following notification of the Award, the Landlord’s or Tenant’s submitted Market Rate determination, whichever is selected by the arbitrators as being
closest to Market rent shall become the then applicable Market Rate. 
 (e) The Award issued by the majority of the three arbitrators shall
be binding upon Landlord and Tenant. 
 (f) If either Landlord or Tenant fail to appoint an Advocate Arbitrator within fifteen (15) days
after the Outside Agreement Date, either party may petition the presiding judge of the Superior Court of King County to appoint such Advocate Arbitrator subject to the criteria in Section (9)(b), above, or if he or she refuses to act, either party
may petition any judge having jurisdiction over the parties to appoint such Advocate Arbitrator. 
 (g) If the two Advocate Arbitrators fail
to agree upon and appoint the Neutral Arbitrator, then either party may petition the presiding judge of the Superior Court of King County to appoint the Neutral Arbitrator, subject to criteria in Section (9)(b) above, or if he or she refuses to act,
either party may petition any judge having jurisdiction over the parties to appoint such arbitrator. 
 (vii) The cost of arbitration shall
be paid by Landlord and Tenant equally. 

  

					
		  	 EXHIBIT K

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 SCHEDULE 1 

TO 
 EXHIBIT K 

FIRST OFFER SPACE DEMISING PLANS 
  

 

  

					
		  	 EXHIBIT K

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 EXHIBIT L 

FORM OF LETTER OF CREDIT 

(Letterhead of a money center bank 

acceptable to the Landlord) 
  

			
		
	FAX NO. [(          )      -          ]	  	[Insert Bank Name And Address]
	SWIFT: [Insert No., if any]	  	
		
		  	DATE OF ISSUE:
                                         
               
		
	BENEFICIARY:	  	APPLICANT:
	[Insert Beneficiary Name And Address]	  	[Insert Applicant Name And Address]
		
		  	LETTER OF CREDIT NO.                     
		
	EXPIRATION DATE:	  	AMOUNT AVAILABLE:
	                     AT OUR COUNTERS	  	USD[Insert Dollar Amount]
		  	(U.S. DOLLARS [Insert Dollar Amount])

 LADIES AND GENTLEMEN: 
 WE
HEREBY ESTABLISH OUR IRREVOCABLE STANDBY LETTER OF CREDIT NO.
                                     IN YOUR FAVOR FOR THE
ACCOUNT OF [Insert Tenant’s Name], A [Insert Entity Type], UP TO THE AGGREGATE AMOUNT OF USD [Insert Dollar Amount] ([Insert Dollar Amount] U.S. DOLLARS) EFFECTIVE IMMEDIATELY AND EXPIRING ON (Expiration Date) AVAILABLE BY PAYMENT UPON
PRESENTATION OF YOUR DRAFT AT SIGHT DRAWN ON [Insert Bank Name] WHEN ACCOMPANIED BY THE FOLLOWING DOCUMENT(S): 
 1. THE ORIGINAL OF THIS
IRREVOCABLE STANDBY LETTER OF CREDIT AND AMENDMENT(S), IF ANY. 
 2. BENEFICIARY’S SIGNED STATEMENT PURPORTEDLY SIGNED BY AN AUTHORIZED
REPRESENTATIVE OF [Insert Landlord’s Name], A [Insert Entity Type] (“LANDLORD”) STATING THE FOLLOWING: 
 “THE
UNDERSIGNED HEREBY CERTIFIES THAT THE LANDLORD, EITHER (A) UNDER THE LEASE (DEFINED BELOW), OR (B) AS A RESULT OF THE TERMINATION OF SUCH LEASE, HAS THE RIGHT TO DRAW DOWN THE AMOUNT OF
USD                 IN ACCORDANCE WITH THE TERMS OF THAT CERTAIN OFFICE LEASE DATED [Insert Lease Date], AS AMENDED (COLLECTIVELY, THE “LEASE”), OR SUCH
AMOUNT CONSTITUTES DAMAGES OWING BY THE TENANT TO BENEFICIARY RESULTING FROM THE BREACH OF SUCH LEASE BY THE TENANT THEREUNDER, OR THE TERMINATION OF SUCH LEASE, AND SUCH AMOUNT REMAINS UNPAID AT THE TIME OF THIS DRAWING.” 

  

					
		  	 EXHIBIT L

1
	  	 Second & Spring

Avalara, Inc.

 OR 

“THE UNDERSIGNED HEREBY CERTIFIES THAT WE HAVE RECEIVED A WRITTEN NOTICE OF [Insert Bank Name]’S ELECTION NOT TO EXTEND ITS STANDBY
LETTER OF CREDIT NO.                  AND HAVE NOT RECEIVED A REPLACEMENT LETTER OF CREDIT WITHIN AT LEAST SIXTY (60) DAYS PRIOR TO THE PRESENT EXPIRATION
DATE.” 
 OR 
 “THE UNDERSIGNED
HEREBY CERTIFIES THAT BENEFICIARY IS ENTITLED TO DRAW DOWN THE FULL AMOUNT OF LETTER OF CREDIT NO.                  AS THE RESULT OF THE FILING OF A VOLUNTARY
PETITION UNDER THE U.S. BANKRUPTCY CODE OR A STATE BANKRUPTCY CODE BY THE TENANT UNDER THAT CERTAIN OFFICE LEASE DATED [Insert Lease Date], AS AMENDED (COLLECTIVELY, THE “LEASE”), WHICH FILING HAS NOT BEEN DISMISSED AT THE TIME OF THIS
DRAWING.” 
 OR 
 “THE UNDERSIGNED
HEREBY CERTIFIES THAT BENEFICIARY IS ENTITLED TO DRAW DOWN THE FULL AMOUNT OF LETTER OF CREDIT NO.                  AS THE RESULT OF AN INVOLUNTARY PETITION
HAVING BEEN FILED UNDER THE U.S. BANKRUPTCY CODE OR A STATE BANKRUPTCY CODE AGAINST THE TENANT UNDER THAT CERTAIN OFFICE LEASE DATED [Insert Lease Date], AS AMENDED (COLLECTIVELY, THE “LEASE”), WHICH FILING HAS NOT BEEN DISMISSED AT THE
TIME OF THIS DRAWING.” 
 OR 
 “THE
UNDERSIGNED HEREBY CERTIFIES THAT BENEFICIARY IS ENTITLED TO DRAW DOWN THE FULL AMOUNT OF LETTER OF CREDIT NO.                  AS THE RESULT OF THE REJECTION, OR
DEEMED REJECTION, OF THAT CERTAIN OFFICE LEASE DATED [Insert Lease Date], AS AMENDED, UNDER SECTION 365 OF THE U.S. BANKRUPTCY CODE.” 

  

					
		  	 EXHIBIT L

2
	  	 Second & Spring

Avalara, Inc.

 SPECIAL CONDITIONS: 

PARTIAL DRAWINGS AND MULTIPLE PRESENTATIONS MAY BE MADE UNDER THIS STANDBY LETTER OF CREDIT, PROVIDED, HOWEVER, THAT EACH SUCH DEMAND THAT IS PAID BY US SHALL
REDUCE THE AMOUNT AVAILABLE UNDER THIS STANDBY LETTER OF CREDIT. 
 ALL INFORMATION REQUIRED WHETHER INDICATED BY BLANKS, BRACKETS OR OTHERWISE, MUST BE
COMPLETED AT THE TIME OF DRAWING. [Please Provide The Required Forms For Review, And Attach As Schedules To The Letter Of Credit.] 
 ALL SIGNATURES MUST BE
MANUALLY EXECUTED IN ORIGINALS. 
 ALL BANKING CHARGES ARE FOR THE APPLICANT’S ACCOUNT. 

IT IS A CONDITION OF THIS STANDBY LETTER OF CREDIT THAT IT SHALL BE DEEMED AUTOMATICALLY EXTENDED WITHOUT AMENDMENT FOR A PERIOD OF ONE YEAR FROM THE PRESENT
OR ANY FUTURE EXPIRATION DATE, UNLESS AT LEAST SIXTY (60) DAYS PRIOR TO THE EXPIRATION DATE WE SEND YOU NOTICE BY NATIONALLY RECOGNIZED OVERNIGHT COURIER SERVICE THAT WE ELECT NOT TO EXTEND THIS LETTER OF CREDIT FOR ANY SUCH ADDITIONAL PERIOD.
SAID NOTICE WILL BE SENT TO THE ADDRESS INDICATED ABOVE, UNLESS A CHANGE OF ADDRESS IS OTHERWISE NOTIFIED BY YOU TO US IN WRITING BY RECEIPTED MAIL OR COURIER. ANY NOTICE TO US WILL BE DEEMED EFFECTIVE ONLY UPON ACTUAL RECEIPT BY US AT OUR
DESIGNATED OFFICE. IN NO EVENT, AND WITHOUT FURTHER NOTICE FROM OURSELVES, SHALL THE EXPIRATION DATE BE EXTENDED BEYOND A FINAL EXPIRATION DATE OF              ,
20         [i.e., the date that is ninety (90) days from the Final LC Expiration Date under the Lease]. 

THIS LETTER OF CREDIT MAY BE TRANSFERRED SUCCESSIVELY IN WHOLE OR IN PART ONLY UP TO THE THEN AVAILABLE AMOUNT IN FAVOR OF A NOMINATED TRANSFEREE
(“TRANSFEREE”), ASSUMING SUCH TRANSFER TO SUCH TRANSFEREE IS IN COMPLIANCE WITH ALL APPLICABLE U.S. LAWS AND REGULATIONS. AT THE TIME OF TRANSFER, THE ORIGINAL LETTER OF CREDIT AND ORIGINAL AMENDMENT(S) IF ANY, MUST BE SURRENDERED TO US
TOGETHER WITH OUR TRANSFER FORM (AVAILABLE UPON REQUEST) AND PAYMENT OF OUR CUSTOMARY TRANSFER FEES, 1/4 of 1% MIN. $250.00 WHICH FEES SHALL
BE PAYABLE BY APPLICANT. IN CASE OF ANY TRANSFER UNDER THIS LETTER OF CREDIT, THE DRAFT AND ANY REQUIRED STATEMENT MUST BE EXECUTED BY THE TRANSFEREE AND WHERE THE BENEFICIARY’S NAME APPEARS WITHIN THIS STANDBY LETTER OF CREDIT, THE
TRANSFEREE’S NAME IS AUTOMATICALLY SUBSTITUTED THEREFOR. 
 ALL DRAFTS REQUIRED UNDER THIS STANDBY LETTER OF CREDIT MUST BE MARKED: “DRAWN UNDER
[Insert Bank Name] STANDBY LETTER OF CREDIT NO.                     .” 

WE HEREBY AGREE WITH YOU THAT IF DRAFTS ARE PRESENTED TO [Insert Bank Name] UNDER THIS LETTER OF CREDIT AT OR PRIOR TO [Insert Time – (e.g., 11:00 AM)],
ON A BUSINESS DAY, AND PROVIDED THAT SUCH DRAFTS PRESENTED 

  

					
		  	 EXHIBIT L

3
	  	 Second & Spring

Avalara, Inc.

 
CONFORM TO THE TERMS AND CONDITIONS OF THIS LETTER OF CREDIT, PAYMENT SHALL BE INITIATED BY US IN IMMEDIATELY AVAILABLE FUNDS BY OUR CLOSE OF BUSINESS ON THE SECOND SUCCEEDING BUSINESS DAY. IF
DRAFTS ARE PRESENTED TO [Insert Bank Name] UNDER THIS LETTER OF CREDIT AFTER [Insert Time – (e.g., 11:00 AM)], ON A BUSINESS DAY, AND PROVIDED THAT SUCH DRAFTS CONFORM WITH THE TERMS AND CONDITIONS OF THIS LETTER OF CREDIT, PAYMENT SHALL
BE INITIATED BY US IN IMMEDIATELY AVAILABLE FUNDS BY OUR CLOSE OF BUSINESS ON THE THIRD SUCCEEDING BUSINESS DAY. AS USED IN THIS LETTER OF CREDIT, “BUSINESS DAY” SHALL MEAN ANY DAY OTHER THAN A SATURDAY, SUNDAY OR A DAY ON WHICH BANKING
INSTITUTIONS IN THE STATE OF WASHINGTON ARE AUTHORIZED OR REQUIRED BY LAW TO CLOSE. IF THE EXPIRATION DATE FOR THIS LETTER OF CREDIT SHALL EVER FALL ON A DAY WHICH IS NOT A BUSINESS DAY THEN SUCH EXPIRATION DATE SHALL AUTOMATICALLY BE EXTENDED TO
THE DATE WHICH IS THE NEXT BUSINESS DAY. 
 PRESENTATION OF A DRAWING UNDER THIS LETTER OF CREDIT MAY BE MADE ON OR PRIOR TO THE THEN CURRENT EXPIRATION
DATE HEREOF BY HAND DELIVERY, COURIER SERVICE, OVERNIGHT MAIL, OR FACSIMILE. PRESENTATION BY FACSIMILE TRANSMISSION SHALL BE BY TRANSMISSION OF THE ABOVE REQUIRED SIGHT DRAFT DRAWN ON US TOGETHER WITH THIS LETTER OF CREDIT TO OUR FACSIMILE NUMBER,
[Insert Fax Number - (      )          -          ], ATTENTION: [Insert Appropriate Recipient], WITH TELEPHONIC CONFIRMATION OF
OUR RECEIPT OF SUCH FACSIMILE TRANSMISSION AT OUR TELEPHONE NUMBER [Insert Telephone Number – (    
)            -            ] OR TO SUCH OTHER FACSIMILE OR TELEPHONE NUMBERS, AS TO WHICH YOU HAVE RECEIVED WRITTEN
NOTICE FROM US AS BEING THE APPLICABLE SUCH NUMBER. WE AGREE TO NOTIFY YOU IN WRITING, BY NATIONALLY RECOGNIZED OVERNIGHT COURIER SERVICE, OF ANY CHANGE IN SUCH DIRECTION. ANY FACSIMILE PRESENTATION PURSUANT TO THIS PARAGRAPH SHALL ALSO STATE
THEREON THAT THE ORIGINAL OF SUCH SIGHT DRAFT AND LETTER OF CREDIT ARE BEING REMITTED, FOR DELIVERY ON THE NEXT BUSINESS DAY, TO [Insert Bank Name] AT THE APPLICABLE ADDRESS FOR PRESENTMENT PURSUANT TO THE PARAGRAPH FOLLOWING THIS ONE. 

WE HEREBY ENGAGE WITH YOU THAT ALL DOCUMENT(S) DRAWN UNDER AND IN COMPLIANCE WITH THE TERMS OF THIS STANDBY LETTER OF CREDIT WILL BE DULY HONORED IF DRAWN AND
PRESENTED FOR PAYMENT AT OUR OFFICE LOCATED AT [Insert Bank Name], [Insert Bank Address], ATTN: [Insert Appropriate Recipient], ON OR BEFORE THE EXPIRATION DATE OF THIS CREDIT, (Expiration Date). 

IN THE EVENT THAT THE ORIGINAL OF THIS STANDBY LETTER OF CREDIT IS LOST, STOLEN, MUTILATED, OR OTHERWISE DESTROYED, WE HEREBY AGREE TO ISSUE A CERTIFIED TRUE
COPY OF THE ORIGINAL HEREOF UPON RECEIPT OF A WRITTEN REQUEST FROM YOU AND A CERTIFICATION BY YOU (PURPORTEDLY SIGNED BY YOUR AUTHORIZED REPRESENTATIVE) OF THE LOSS, THEFT, MUTILATION, OR OTHER DESTRUCTION OF THE ORIGINAL HEREOF IN THE FORM OF
EXHIBIT “C” ATTACHED. 

  

					
		  	 EXHIBIT L

4
	  	 Second & Spring

Avalara, Inc.

 IF ANY INSTRUCTIONS ACCOMPANYING A DRAWING UNDER THIS LETTER OF CREDIT REQUEST THAT PAYMENT IS TO BE MADE BY
TRANSFER TO YOUR ACCOUNT WITH ANOTHER BANK, WE WILL ONLY EFFECT SUCH PAYMENT BY RED WIRE TO A U.S. REGULATED BANK, AND WE AND/OR SUCH OTHER BANK MAY ONLY RELY ON AN ACCOUNT NUMBER SPECIFIED IN SUCH INSTRUCTIONS EVEN IF THE NUMBER IDENTIFIES A PERSON
OR ENTITY DIFFERENT FROM THE INTENDED PAYEE. 
 EXCEPT SO FAR AS OTHERWISE EXPRESSLY STATED HEREIN, THIS STANDBY LETTER OF CREDIT IS SUBJECT TO THE
“INTERNATIONAL STANDBY PRACTICES” (ISP 98) INTERNATIONAL CHAMBER OF COMMERCE (PUBLICATION NO. 590). 
  

			
	Very truly yours,
	
	(Name of Issuing Bank)
		
	By:	 	  

  

					
		  	 EXHIBIT L

5
	  	 Second & Spring

Avalara, Inc.

 Exhibit C 

            , 20         

Silicon Valley Bank 
 3003 Tasman Drive 

Santa Clara, CA 95054 
 Attn: Standby Letters of Credit Department

  

	Re:	Irrevocable Standby Letter of Credit No. SVBSF 

 Ladies and Gentlemen: 

The undersigned (“Beneficiary”) is the beneficiary under Irrevocable Standby Letter of Credit No. SVBSF
             issued by Silicon Valley Bank (“Bank”) upon the request of
                         (together with all amendments issued to such letter of credit, the “Standby L/C”).
Beneficiary cannot locate the executed original of the Standby L/C (the “Original Standby L/C”) and has requested that Bank issue a certified true copy of the Standby L/C (“Certified True Copy”) to replace the Original Standby
L/C. Beneficiary understands that Bank is willing to grant Beneficiary’s request to issue the Certified True Copy so long as Beneficiary agrees to execute this letter agreement for Bank’s benefit. 

In consideration of Bank’s willingness to issue the Certified True Copy, Beneficiary agrees as follows: 

 

	1.	If Beneficiary locates the Original Standby L/C, it will not draw any draft(s) or make any demand(s) upon Bank thereunder, but will promptly deliver to Bank the Original Standby L/C, marked “CANCELED”, and
signed and dated by its duly authorized representative, for disposition by Bank. 

  

	2.	Beneficiary represents and warrants that it has not encumbered, assigned, or otherwise transferred its interest in the Standby L/C or delivered the Original Standby L/C to any other person or entity. 

 

	3.	Beneficiary will indemnify and save Bank harmless from and against any and all claims, judgments, demands, losses, damages, actions, liabilities, costs and expenses, including, without limitation, attorneys’ fees,
which Bank at any time may suffer, sustain or incur in connection with the missing Original Standby L/C (collectively, “Claims”), including, without limitation, any presentation for payment of any draft(s) or demand(s) drawn under the
Original Standby L/C by a holder in due course or a bonafide purchaser for value of the Original Standby L/C, or any other draw requests, presentments or any other claims made on the Original Standby L/C regardless of the party making such draw
requests, presentments or any other claims made (including Beneficiary and/or any of its agents, successors and assigns). This indemnity shall include, without limitation, the face amount of the Original Standby L/C if Bank is required by law to pay
same to a holder in due course or a bonafide purchaser for value of the Original Standby L/C and/or any presentation thereunder or proceeds thereof. Beneficiary will pay, within thirty (30) days of receipt of written request from Bank, all sums
requested by Bank as indemnity for Bank’s Claims. 

  

					
		  	 EXHIBIT L

6
	  	 Second & Spring

Avalara, Inc.

	4.	Upon the effectiveness of this letter agreement, Beneficiary irrevocably releases Bank from any obligation to it under the Original Standby L/C. 

Beneficiary has executed this letter agreement by its duly authorized representative on the date hereof and this letter agreement shall be deemed to be
effective as of such date. 
 Yours truly, 
  

			
	  

(Beneficiary)

	
	Authorized Signature:                                
                      
	
Name & Title:                     
                                         
      

  

			
	
	SIGNATURE AUTHENTICATED
	
	The signature of Beneficiary conforms to that on file with us and is authorized for the execution of such instrument.
	
	  
 (Name of
bank)

  

			
		
	By:	 	  

			
	(Authorized Signature) **
	
	  

(Title)

	
	  

(Telephone Number)

	
	  
 (Address
of bank)

  

	**	VERIFICATION OF BENEFICIARY’S SIGNATURE(S) BY A NOTARY PUBLIC IS UNACCEPTABLE 

  

					
		  	 EXHIBIT L

7
	  	 Second & Spring

Avalara, Inc.

 RIGHT OF FIRST OFFER TO LEASE 

THIS RIGHT OF FIRST OFFER TO LEASE (this “Agreement”) is made and entered into as of August 14, 2014 (the
“Effective Date”), by and between W2007 SEATTLE OFFICE 1111 THIRD AVENUE REALTY, LLC, a Delaware limited liability company (“Owner”), and AVALARA, INC., a Washington corporation (“Avalara”). 

A. Owner is the owner of that certain office building commonly known as 1111 Third Avenue (the “1111 3rd Building”) and located at 1111 3rd Avenue, Seattle, Washington 98101. The 1111 3rd Building and the land upon which such office building is located are referred to herein as the “Property”. The Property is legally described on Exhibit A
attached hereto and incorporated herein by this reference. 
 B. An affiliate of owner, W2007 Seattle Office Second and Spring Building
Realty, LLC, a Delaware limited liability company (“Owner Affiliate”), and Avalara have entered into that certain Lease Agreement dated concurrently herewith (the “Second & Spring Lease”)
with respect to Owner Affiliate’s leasing to Avalara, and Avalara’s leasing from Owner Affiliate, of a total of approximately 36,420 rentable square feet of space (the “Second & Spring Premises”), located in
the office building commonly known as “Second & Spring” (together with the land, which is improved with landscaping, parking facilities and other improvements upon which such office building is located, the
“Second & Spring Property”), and whose street address is 1100 2nd Avenue, Seattle, Washington 98101, which Second & Spring
Premises is more particularly described in the Second & Spring Lease. 
 C. In connection with Avalara’s lease of the
Second & Spring Premises pursuant to the Second & Spring Lease, Owner desires to grant Avalara a right of first offer to lease certain space in the 1111 3rd Building on, and
subject to the terms and conditions set forth in herein. 
 NOW, THEREFORE, in consideration of the foregoing recitals, the mutual covenants
set forth in this Agreement and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, Owner and Avalara hereby agree as follows: 

1. Right of First Offer. 

1.1 First Offer Space. So long as there are at least two (2) years remaining in the Term under the Second &
Spring Lease, Owner hereby grants to Avalara an on-going right of first offer (the “Right of First Offer”) with respect to available space located on the sixth (6th) and seventh (7th) floors of the 1111 3rd Building. Such right of first offer shall be
subject to the terms and conditions set forth in this Agreement in the event that the First Offer Space becomes “available for lease to third parties” (as defined below) and Owner receives a request for proposal, a letter of intent, or a
similar offer for the leasing of such space from a qualified third party (a “Third Party Offer”). For purposes hereof, a First Offer Space shall become “available for lease to third parties” if (a) Owner is free to
lease the space to the general public unencumbered by any renewal rights, extension rights, expansion rights, rights of first offer (granted prior to the date hereof), rights of first refusal (granted prior to the date hereof) or other similar
rights (granted prior to the date hereof) in favor of other tenants in the Project, whether or not the renewal or extension of the existing tenant’s lease is pursuant to an express written provision in such tenant’s lease, and without
regard to whether 

  

					
		  	1	  	

 
such renewal or extension is characterized by the parties thereto as a “renewal”, “extension” or “new lease”; and (b) Owner intends to market the space to the
general public (i.e., the space will not be occupied by Owner, any of its affiliates or successors, or by an existing tenant of the space) (all of the foregoing described in clauses (a) and (b) being herein collectively referred to as
“Superior Rights”). 
 1.2 First Offer Notice. Owner shall give Avalara notice (a
“First Offer Notice”) at such time as a First Offer Space will or has become available to third parties (as such availability is determined by Owner) pursuant to the terms of Avalara’s Right of First Offer, as set forth in this
Agreement. A First Offer Notice may be conditioned on the failure of a holder of Superior Rights to lease all or any portion of the First Offer Space identified in such First Offer Notice. The First Offer Notice shall set forth the material economic
terms upon which Owner would be prepared to lease such First Offer Space to Avalara for the remainder of the Term (the “Economic Terms”), including, without limitation (a) the anticipated date upon which
possession of such First Offer Space will be available (the “Anticipated Delivery Date”), (b) the tenant improvements, if any, Owner proposes to install, and/or tenant improvements allowance Owner proposes to pay, if any, for such
First Offer Space, if any, (c) a good faith proposal of the First Offer Rent (as defined below) for such First Offer Space, and (d) any other material economic conditions or provisions relating to the leasing of such First Offer Space that
vary from the provisions of this Agreement. The term of the lease for the First Offer Space shall terminate on the date provided for such termination in the First Offer Notice. 

1.3 First Offer Rent. The basic rent (“Basic Rent”) payable by Avalara for the First Offer Space (the
“First Offer Rent”) during the First Offer Term (as defined below) shall be the Market Rate (as defined below) for the First Offer Space, valued as of the commencement of the First Offer Term, determined in the manner hereinafter
provided. As used in this Agreement, the term “Market Rate” shall mean the annual amount of basic rent at which tenants, as of the commencement of the First Offer Term, are leasing
non-sublease, non-encumbered, non-equity space under then-prevailing ordinary rental market practices (e.g., not pursuant to
extraordinary rental, promotional deals or other concessions to tenants that deviate from what is the then-prevailing ordinary practice), at arm’s length, that is comparable to the First Offer Space within the Building or in other, first class
office buildings in the Seattle, Washington central business district area (“Comparison Buildings”), based upon binding lease transactions for tenants in the Comparison Buildings that, where possible, commence or are to commence
within six (6) months prior to or within six (6) months after the commencement of the First Offer Term (as used in this Agreement, the “Comparison Leases”). Rental rates payable under Comparison Leases shall be adjusted to
account for variations between this Agreement and the Comparison Leases with respect to: (a) the length of the First Offer Term compared to the term of the Comparison Leases; (b) rental structure, including, rental rates per rentable
square foot (including type, gross or net, and if gross, adjusting for base year or expense stop), additional rental, annual rent adjustments, escalation provisions, all other payments and escalations; (c) the size of the First Offer Space
compared to the size of the premises of the Comparison Leases; (d) free rent, moving expenses and other cash payments, allowances or other monetary concessions affecting the rental rate; (e) the age and quality of construction of the
buildings; and (f) leasehold improvements and/or allowances, taking into account the value of existing leasehold improvements to the existing tenant. 

  

					
		  	2	  	

 1.4 Procedure for Acceptance. On or before the date that is five
(5) business days after Avalara’s receipt of a First Offer Notice (the “Election Date”), Avalara may, at its option, deliver an irrevocable, unqualified, unconditional notice to Owner electing to lease
the First Offer Space identified in such First Offer Notice upon the terms set forth in the First Offer Notice (“Avalara’s Election Notice”), and Avalara’s Election Notice shall affirmatively state that Avalara is either
(A) accepting Owner’s Market Rate determination (as set forth in the First Offer Notice) as the First Offer Rent, or (B) rejecting Owner’s Market Rate determination (as set forth in the First Offer Notice) as the First Offer
Rent, and if Avalara rejects Owner’s Market Rate determination (as set forth in the First Offer Notice), then the parties shall follow the procedure set forth in Section 1.10 below, and the Market Rate shall be determined in accordance
with the terms of Section 1.10 below. Avalara may exercise its Right of First Offer only with respect to all of the First Offer Space identified in the First Offer Notice and only upon the terms set forth in the First Offer Notice. If
Avalara does not deliver Avalara’s Election Notice to Owner on or before the Election Date, then Avalara shall have no further rights hereunder to lease the First Offer Space identified in the First Offer Notice. Time is of the essence of this
provision and Avalara acknowledges and agrees that Owner will have no obligation to lease to Avalara any First Offer Space identified in a First Offer Notice if Avalara does not deliver Avalara’s Election Notice to Owner on or before the
Election Date. Any qualified or conditional acceptance by Avalara of a First Offer Notice shall be deemed to be a counter-offer to, and a rejection of, such First Offer Notice. If Avalara’s Election Notice is not a written, unqualified,
unconditional, irrevocable acceptance of the First Offer Notice, or is not delivered on or before 5:00 p.m. on the Election Date, then Avalara shall be deemed to have rejected the First Offer Notice. If Avalara rejects or is deemed to have rejected
a First Offer Notice for any reason, the Right of First Offer shall automatically terminate and be of no further force or effect with respect to the First Offer Space identified therein and Owner shall thereafter have the right to lease all or any
portion of such First Offer Space to any person on any terms and conditions Owner desires (including terms and conditions more favorable than the terms and conditions set forth in such First Offer Notice); provided, however, in the event that Owner
fails to enter into a lease with a third-party for all or any portion of such First Offer Space within six (6) months following the date on which Avalara rejects (or is deemed to have rejected) a First Offer Notice, then Avalara’s Right of
First Offer with respect to such First Offer Space shall automatically renew and Owner shall again be obligated to provide Avalara with a First Offer Notice in the event that such First Offer Space becomes available for lease to third parties and
Owner has received a Third Party Offer for such First Offer Space. 
 1.5 New Lease. If Avalara timely exercises
Avalara’s right of first offer to lease the First Offer Space as set forth herein, Owner and Avalara shall within thirty (30) days thereafter execute a new lease (the “First Offer Space Lease”) for such First Offer
Space, which First Offer Space Lease shall be in substantially the same form as the Second & Spring Lease (with appropriate modifications thereto as reasonably determined by Owner to reflect the particulars of the First Offer Space and the
1111 3rd Building, as compared to the Second & Spring Premises and the Second & Spring Property, and the Right of First Offer and the Early Termination
Option, as defined in the Second & Spring Lease, shall not be included in the First Offer Space Lease). Notwithstanding the foregoing, an otherwise valid exercise of Avalara’s Right of First Offer shall be of full force and effect
irrespective of whether the First Offer Space Lease is timely signed by Owner and Avalara. Avalara’s lease of such First Offer Space shall be upon the express terms set forth in the First Offer Notice, but otherwise upon the terms and
conditions set forth in the First Offer Space Lease, and this Agreement. Avalara shall commence payment of rent for such First Offer Space, and the term of such First Offer Space (the “First Offer Term”) shall
commence, upon the date of delivery of such First Offer Space to Avalara (the “First Offer Commencement Date”) and terminate on the date provided for such termination in the First Offer Notice. 

  

					
		  	3	  	

 1.6 Additional Conditions of Exercise. Notwithstanding any provision of this
Agreement to the contrary, if an “Event of Default” (as defined in the Second & Spring Lease) under the terms of the Second & Spring Lease has occurred either at the time a First Offer Notice would otherwise be required
to be sent under this Agreement, or any other time following Avalara’s exercise of its right to lease First Offer Space and prior to the date upon which possession of such First Offer Space is to be delivered to Avalara, and such Event of
Default has not been cured by Avalara within the applicable notice and cure period, Owner shall have, in addition to all of Owner’s other rights and remedies provided in this Agreement, the right to terminate Avalara’s rights under this
Agreement, and in such event Owner shall not be required to deliver the First Offer Notice or to deliver possession of such First Offer Space to Avalara. If not earlier terminated, the rights of Avalara pursuant to this Agreement shall automatically
terminate on the date that is two (2) years prior to the “Expiration Date” of the Second & Spring Lease. Nothing contained in this Agreement shall be deemed to impose any obligation on Owner to refrain from negotiating with
any existing tenant of the First Offer Space, to withhold the First Offer Space from the market, or to take any other action or omit to take any other action in order to make the First Offer Space available to Avalara. 

1.7 Lease Security. In the event that Avalara elects to exercise its Right of First Offer, Owner shall have the right to
review Avalara’s audited financial statements (as provided in Section 26(q) of the Second & Spring Lease), and thereafter, Owner shall have the right to require that Avalara provide Owner with financial
security, such as a letter of credit or guaranty, for Avalara’s rent obligations with respect to the First Offer Space. Such determination to be made by reviewing the extent of financial security then generally being imposed in comparable
transactions in the Comparison Building upon tenants of comparable financial condition and credit history to the then existing financial condition and credit history of Avalara, with appropriate adjustments to account for differences in the
then-existing financial condition of Avalara and such other tenants. In the event that Owner requires such financial security, then Avalara shall deliver such additional financial security to Owner concurrently with Avalara’s execution of the
First Offer Space Lease. 
 1.8 Rights Personal to Avalara. The Right of First Offer (i) is personal to, and may
only be exercised by, Avalara or by a “Permitted Transferee” (as that term is defined in the Second & Spring Lease) to whom Avalara’s entire interest in the Second & Spring Lease has been transferred in a
“Permitted Transfer” under the terms of Section 10(h) of the Second & Spring Lease, (ii) is not assignable separate and apart from an assignment of Avalara’s (or a Permitted Transferee’s)
entire interest in the Second & Spring Lease in a Permitted Transfer, (iii) shall not be assigned or otherwise transferred, voluntarily or involuntarily to, or exercised by, any person other than Avalara or such Permitted Transferee,
and (iv) shall only be exercisable if Avalara or such Permitted Transferee occupies one hundred percent (100%) of the Second & Spring Premises at the time of such exercise. 

  

					
		  	4	  	

 1.9 Termination of Right of First Offer. The Right of First Offer shall only
apply to the extent the Property continues to be owned by W2007 Seattle Office 1111 Third Avenue Realty, LLC (or by an affiliate of W2007 Seattle Office 1111 Third Avenue Realty, LLC or by an affiliate of the landlord under the Second &
Spring Lease), and in the event that the Property is no longer owned by W2007 Seattle Office 1111 Third Avenue Realty, LLC (or by an affiliate of W2007 Seattle Office 1111 Third Avenue Realty, LLC or by an affiliate of the landlord under the
Second & Spring Lease) (including, without limitation, in connection with a foreclosure, deed in lieu thereof or similar proceeding, by any Owner’s lender or other mortgagee, or any nominee or designee of Owner’s lender or other
mortgagee or their respective successors and assigns), then this Agreement shall automatically terminate and be of no further force and effect. In addition, in the event that (i) the Second & Spring Lease shall terminate for any
reason, or (ii) Avalara delivers to Owner’s Affiliate a “Termination Notice” in connection with the “Early Termination Option” (as both of those terms are defined in the Second & Spring Lease), then this
Agreement shall automatically terminate concurrently therewith. As used in this Section 1.9, “affiliate” means an entity which is controlled by, controls or is under common control with the entity in question.

 1.10 Determination of First Offer Rent. In the event that Avalara exercises the Right of First Offer, but
Avalara’s Election Notice contains Avalara’s rejection of Owner’s Market Rate determination (as set forth in the First Offer Notice), then the Market Rate for purposes of this Agreement shall be determined as follows: 

1.10.1 Owner and Avalara shall attempt to agree upon the Market Rate using reasonable good-faith efforts. If Owner and Avalara fail to reach
agreement within thirty (30) days following Avalara’s objection to Owner’s Market Rate determination (the “Outside Agreement Date”), then each party shall make a separate determination of the Market Rate for the First
Offer Space within five (5) business days after the Outside Agreement Date, and such determinations shall be submitted to arbitration in accordance with Sections 1.10.2 through 1.10.8 below. 

1.10.2 Owner and Avalara shall each appoint one arbitrator who shall by profession be a real estate broker, appraiser or attorney who shall
have been active over the five (5) year period ending on the date of such appointment in the leasing (or appraisal, as the case may be) of space in the Comparison Buildings. The determination of the arbitrators shall be limited solely to the
issue of whether Owner’s or Avalara’s submitted Market Rate is the closest to the actual Market Rate for the First Offer Space as determined by the arbitrators, taking into account the requirements of Section 1.3,
above. Each such arbitrator shall be appointed within fifteen (15) days after the Outside Agreement Date. Owner and Avalara may consult with their selected arbitrators prior to appointment and may select an arbitrator who is favorable to their
respective positions. The arbitrators so selected by Owner and Avalara shall be deemed the “Advocate Arbitrators”. 

1.10.3 The two Advocate Arbitrators so appointed shall be specifically required pursuant to an engagement letter within ten (10) days of
the date of the appointment of the last appointed Advocate Arbitrator agree upon and appoint a third arbitrator (“Neutral Arbitrator”) who shall be qualified under the same criteria set forth hereinabove for qualification of the two
Advocate Arbitrators except that neither the Owner or Avalara or either party’s Advocate Arbitrator may, directly or indirectly, consult with the Neutral Arbitrator prior to subsequent to his or her appearance. The Neutral Arbitrator shall be
retained via an engagement letter jointly prepared by Owner’s counsel and Avalara’s counsel. 

  

					
		  	5	  	

 1.10.4 The three arbitrators shall within thirty (30) days of the appointment of the
Neutral Arbitrator reach a decision as to Market Rate and determine whether the Owner’s or Avalara’s determination of Market Rate as submitted pursuant Section 1.10.1, above, is closest to Market Rate as
determined by the arbitrators and simultaneously publish a ruling (“Award”) indicating whether Owner’s or Avalara’s submitted Market Rate is closest to the Market Rate as determined by the arbitrators.
Following notification of the Award, the Owner’s or Avalara’s submitted Market Rate determination, whichever is selected by the arbitrators as being closest to Market Rate, shall become the then applicable Market Rate. 

1.10.5 The Award issued by the majority of the three arbitrators shall be binding upon Owner and Avalara. 

1.10.6 If either Owner or Avalara fail to appoint an Advocate Arbitrator within fifteen (15) days after the Outside Agreement Date,
either party may petition the presiding judge of the Superior Court of King County to appoint such Advocate Arbitrator subject to the criteria in Section 1.10.2, above, or if he or she refuses to act, either party may
petition any judge having jurisdiction over the parties to appoint such Advocate Arbitrator. 
 1.10.7 If the two Advocate Arbitrators fail
to agree upon and appoint the Neutral Arbitrator, then either party may petition the presiding judge of the Superior Court of King County to appoint the Neutral Arbitrator, subject to criteria in Section 1.10.2 above, or if
he or she refuses to act, either party may petition any judge having jurisdiction over the parties to appoint such arbitrator. 
 1.10.8 The
cost of arbitration shall be paid by Owner and Avalara equally. 
 In the event that the Market Rate has not been determined as of the First Offer
Commencement Date, Avalara shall pay monthly Basic Rent for the First Offer Space at the rate set forth in the First Offer Notice until such time as the Market Rate has been determined pursuant to this Section 1.10. Upon
such determination, the Basic Rent for the First Offer Space shall be retroactively adjusted to the First Offer Commencement Date. If such adjustment results in an underpayment of Basic Rent by Avalara, Avalara shall pay Owner the amount of such
underpayment within thirty (30) days after the determination thereof. If such adjustment results in an overpayment of Basic Rent by Avalara, Owner shall credit such overpayment against the next installment of Basic Rent due under the First
Offer Space Lease and, to the extent necessary, any subsequent installments, until the entire amount of such overpayment has been credited against Basic Rent otherwise attributable to the First Offer Space. 

2. Independent Consideration. Avalara shall deliver independent consideration to Owner in the form of a check from Avalara
in the amount of Ten and No/100 U.S. Dollars ($10.00) (the “Independent Consideration”). Owner and Avalara hereby mutually acknowledge and agree that said sum represents adequate bargained for consideration for Owner’s
execution and delivery of this Agreement and Avalara’s Right of First Offer as provided herein. Said sum is in addition to and independent of any other consideration or payment provided for in this Agreement, and is nonrefundable to Avalara in
all events. The obligation of Avalara to pay the Independent Consideration to Owner is unconditional and shall survive any termination of this Agreement. 

  

					
		  	6	  	

 3. Defaults. Each of the following events shall constitute an event of
default by the applicable party and shall permit the non-defaulting party, as its sole remedy, to terminate this Agreement: 

3.1 The failure by any party hereto to perform any of the terms, agreements or conditions set forth in this Agreement, where such failure
continues for thirty (30) days, after receipt of written notice of such failure from the other party; or 
 3.2 A party files for
bankruptcy or has an involuntary petition in bankruptcy or a request for the appointment of a receiver filed against it, where such involuntary petition or request is not dismissed within ninety (90) days after filing. 

4. Miscellaneous. 

4.1 Brokerage. Neither Owner nor Avalara has dealt with any broker or agent in connection with the negotiation or
execution of this Agreement, other than Colliers International (representing Avalara) and Urbis Partners, LLC (representing Owner), whose commissions (if any) shall be paid by Owner pursuant to separate written agreements. Each party acknowledges
receipt of a copy of the pamphlet described in RCW 18.86.030(f) entitled “The Law of Real Estate Agency,” as required by Washington Law. Avalara and Owner shall each indemnify the other against all costs, expenses, attorneys’ fees,
liens and other liability for commissions or other compensation claimed by any broker or agent claiming the same by, through, or under the indemnifying party. 

4.2 Notices. Notwithstanding anything to the contrary contained in the Lease, as of the date of this Agreement, any
notices to Owner or Avalara must be sent, transmitted, or delivered, as the case may be, to the following addresses: 
  

			
	 If to Owner:
	  	 Talon Portfolio Services, LLC

		  	 1800 Ninth Avenue, Suite 1600

		  	 Seattle, Washington 98101

		  	 Attention: Lease Administration

		
		  	 With a copy to:

		
		  	 W2007 Seattle Office 1111 Third Avenue Realty, LLC

		  	 c/o Walton Street Capital, L.L.C.

		  	 900 North Michigan Avenue, Suite 1900

		  	 Chicago, Illinois 60611

		  	 Attention: Mr. Jim Odenbach

		  	                         Mr. Douglas Welker
		  	                         Angela Lang, Esq.

  

					
		  	7	  	

			
		  	With a copy to:
		
		  	Pircher, Nichols & Meeks
		  	1925 Century Park East, Suite 1700
		  	Los Angeles, California 90067-2512
		  	Attention: Real Estate Notices (SCS)
		
	If to Avalara:	  	Avalara, Inc.
		  	100 Ravine Lane
		  	Bainbridge Island, Washington 98110
		  	Attention: General Counsel

 4.3 Separability. If any clause or provision of this Agreement is illegal, invalid, or
unenforceable under present or future laws, then the remainder of this Agreement shall not be affected thereby and in lieu of such clause or provision, there shall be added as a part of this Agreement a clause or provision as similar in terms to
such illegal, invalid, or unenforceable clause or provision as may be possible, which clause or provision shall be legal, valid, and enforceable. 

4.4 Amendment. This Agreement may not be amended or altered except by an instrument in writing executed by the parties.

 4.5 Entire Agreement. This Agreement (including its exhibits) contains the entire agreement between Owner and Avalara
relative to the subject matter hereof, and shall supersede any prior agreement or understanding, if any, whether written or oral, which Avalara may have had relating to the subject matter hereof with Owner. 

4.6 Waiver of Jury Trial. TO THE MAXIMUM EXTENT PERMITTED BY LAW, OWNER AND AVALARA EACH WAIVE ANY
RIGHT TO TRIAL BY JURY IN ANY LITIGATION OR TO HAVE A JURY PARTICIPATE IN RESOLVING ANY DISPUTE ARISING OUT OF OR WITH RESPECT TO THIS LEASE OR ANY OTHER INSTRUMENT, DOCUMENT OR AGREEMENT EXECUTED OR DELIVERED IN CONNECTION HEREWITH OR THE
TRANSACTIONS RELATED HERETO. 
 4.7 Governing Law. This Lease shall be governed by and construed in accordance with the
Laws of the State of Washington. 
 4.8 Recording. Avalara shall not record this Agreement or any memorandum of this
Agreement without the prior consent of Owner, which consent may be withheld or denied in the sole and absolute discretion of Owner, and any recordation by Avalara shall be a material breach of this Agreement that cannot be cured. Avalara grants to
Owner a power of attorney to execute and record a release releasing any such recorded instrument of record that was recorded without the prior consent of Owner. 

  
 8 

 4.9 Confidentiality. Each party acknowledges that the terms and conditions
of this Agreement are to remain confidential and may not be disclosed to anyone, by any manner or means, directly or indirectly, without the other’s prior consent; however, each party may disclose the terms and conditions of this Agreement if
required by Law or court order, and to its attorneys, accountants, employees and existing or prospective financial partners and to existing or prospective lenders and prospective purchasers of all or any portion of the Property provided same are
advised of the confidential nature of such terms and conditions and agree to maintain the confidentiality thereof (in each case, prior to disclosure). Avalara shall be liable for any disclosures made in violation of this Section by Avalara or by any
entity or individual to whom the terms and conditions of this Agreement were disclosed or made available by Avalara. The consent by a party to any disclosures shall not be deemed to be a waiver on the part of such party of any prohibition against
any future disclosure. 
 4.10 Authority. Avalara hereby represents and warrants to Owner that Avalara is a duly formed
and existing entity qualified to do business in the State of Washington, that Avalara has full right and authority to execute and deliver this Agreement, and that each person signing on behalf of Avalara is authorized to do so. Owner hereby
represents and warrants to Avalara that Owner has full right and authority to execute and deliver this Agreement, and that each person signing on behalf of Owner is authorized to do so. 

4.11 OFAC/FCPA Representation. Neither Avalara nor any of its affiliates, nor to the best of Avalara’s knowledge any
of their respective brokers or other agents acting in any capacity in connection with the transactions contemplated by this Agreement, is or will be (a) conducting any business or engaging in any transaction or dealing with any person appearing
on the U.S. Treasury Department’s OFAC list of prohibited countries, territories, “specifically designated nationals” (“SDNs”) or “blocked person” (each a “Prohibited Person”) (which lists
can be accessed at the following web address: http://www.ustreas.gov/offices/enforcement/ofac/), including the making or receiving of any contribution of funds, goods or services to or for the benefit of any such Prohibited Person; (b) engaging
in certain dealings with countries and organizations designated under Section 311 of the USA PATRIOT Act as warranting special measures due to money laundering concerns; (c) dealing in, or otherwise engaging in any transaction relating to,
any property or interests in property blocked pursuant to Executive Order No. 13224 dated September 24, 2001, relating to “Blocking Property and Prohibiting Transactions With Persons Who Commit, Threaten to Commit, or Support
Terrorism”; (d) a foreign shell bank or any person that a financial institution would be prohibited from transacting with under the USA PATRIOT Act; or (e) engaging in or conspiring to engage in any transaction that evades or avoids, or
has the purpose of evading or avoiding, or attempting to violate, any of the prohibitions set forth in (i) any U.S. anti-money laundering law, (ii) the Foreign Corrupt Practices Act, (iii) the U.S. mail and wire fraud statutes, (iv)
the Travel Act, (v) any similar or successor statutes or (vi) any regulations promulgated under the foregoing statutes. If at any time this representation becomes false, then it shall be considered an Event of Default under this Agreement
as to which there shall be no right to notice or an opportunity to cure, notwithstanding anything contained in this Agreement to the contrary, and Owner shall have the right to exercise all of the remedies set forth in this Agreement including,
without limitation, immediate termination of this Agreement. To the best of Owner’s knowledge Owner is not a person or entity with whom Avalara is restricted from doing business with under regulations of the Office of Foreign Asset Control
(“OFAC”) of the Department of the Treasury (including, but not limited to, those named on OFAC’s Specially Designated and Blocked Persons list) or under any related statute, Executive Order (including, but not limited to, the
September 24, 2001, Executive Order Blocking Property and Prohibiting Transactions With Persons Who Commit, Threaten to Commit, or Support Terrorism), or other similar governmental action. 

  
 9 

 4.12 Headings. Headings at the beginning of each section are solely for the
convenience of the parties and are not a part of (and shall not be used to interpret) this Agreement. The singular form shall include the plural, and vice versa, and each gender shall include the others. Nothing in this Agreement shall be deemed or
construed to create a relationship of principal and agent or of partnership or joint venture between Owner and Avalara. Unless otherwise indicated, all references to sections are to sections of this Agreement. In this Agreement, the term
“including” shall mean “including, but not limited to”. 
 5. Contingency. Notwithstanding the full
execution and delivery of this Agreement between Owner and Avalara, this Agreement is expressly contingent upon the full execution and delivery of the Second & Spring Lease, and in the event that the Second & Spring Lease is not
fully executed and delivered by Owner Affiliate and Avalara by August 31, 2014, this Agreement shall automatically terminate and be of no further force or effect. 

[signatures on the following page] 

  
 10 

 IN WITNESS WHEREOF, Owner and Avalara have caused this Agreement to be executed the day and date first above
written. 
 W2007 SEATTLE OFFICE 1111 THIRD AVENUE REALTY, LLC, 

a Delaware limited liability company 
  

																	
	By:	  	 Walton Seattle Mezz Holdings VI-A, L.L.C.,

a Delaware limited liability company,
 its Sole
Member

			
		  	By:	  	 Walton Seattle Mezz JV VI, L.L.C.,

a Delaware limited liability company,
 its Sole
Member

				
		  		  	By:	  	 Walton Seattle Mezz Investors VI, L.L.C.,

a Delaware limited liability company,
 its Managing
Member

					
		  		  		  	By:	  	 Walton Acquisition REOC Master VI, L.L.C.,

a Delaware limited liability company,
 its Sole
Member

						
		  		  		  		  	By:	  	 Walton Street Real Estate Fund VI-Q, L.P.,

a Delaware limited partnership,
 its Managing Member

							
		  		  		  		  		  	By:	  	 Walton Street Managers VI, L.P.,
 a
Delaware limited partnership,
 its General Partner

								
		  		  		  		  		  		  	By:	 	 WSC Managers VI, Inc.,
 a Delaware
corporation,
 its General Partner

									
		  		  		  		  		  		  		 	By:	  	 /s/ James Odenbach

		  		  		  		  		  		  		 	Name:	  	James Odenbach
		  		  		  		  		  		  		 	Title:	  	Vice President
		  		  		  		  		  		  		 	Date:	  	8/28/14

 [Signatures Continue on the Following Page] 

  
 11 

			
	 THE FOREGOING IS ACKNOWLEDGED
 AND
AGREED:

	
	 AVALARA, INC.,
 a Washington
corporation

		
	By:	 	 /s/ Kevin P Riegelsberger

	Name:	 	Kevin P Riegelsberger
	Title:	 	Chief Strategic Initiatives Officer

  

			
	Date:	 	8-22-14
		
	By:	 	 /s/ Alesia Pinney

	Name:	 	Alesia Pinney
	Title:	 	EVP & General Counsel
		
	Date:	 	8/22/2014

  
 12 

 OWNER ACKNOWLEDGMENT 
  

					
	STATE OF ILLINOIS	  	 )
	  	
		  	)	  	
	COUNTY OF COOK	  	)	  	

 I, the undersigned, a Notary Public in and for said County, in the State aforesaid, DO HEREBY CERTIFY THAT James Odenbach, as
Vice President of WSC Managers VI, Inc., a Delaware corporation, personally known to me or proved to me on the basis of satisfactory evidence to be the same person whose name is subscribed to the foregoing instrument, appeared before me this day in
person and acknowledged that          he signed and delivered said instrument as                  free and
voluntary act, and as a free and voluntary act of said company, for the uses and purposes therein set forth. 
 Given under my hand and Notarial seal this
28 day of August, 2014. 
  

			
		  	
	 /s/ Michelle Meywes
	  	

	Print Name: Michelle Meywes	  
	Notary
Public                                        
          	  
	Commission Expiration: 11/24/17	  
		  
		  

  
 13 

 AVALARA ACKNOWLEDGMENT 

STATE OF WASHINGTON} 

                          
                     } ss. 
 COUNTY OF
KING              } 
 On this 22 day of August, 2014, before me, a Notary
Public in and for the State of Washington, personally appeared Kevin Riegelsberger, personally known to me (or proved to me on the basis of satisfactory evidence) to be the person who executed this instrument; on oath stated that said individual was
authorized to execute the instrument, and acknowledged it as the Chief Strategic Initiatives Officer of AVALARA, INC., a Washington corporation, to be the free and voluntary act and deed of said corporation for the uses and purposes mentioned in the
instrument. 
 IN WITNESS WHEREOF, I have hereunto set my hand and official seal the day and year first above written. 

 

			
		 	 /s/ Paul Andre Barrera

		 	(Print Name) Paul Andre Barrera
		 	NOTARY PUBLIC in and for the State of Washington,
		 	residing at SEATTLE, WASHINGTON
		 	My appointment expires: 1/11/2016

 STATE OF WASHINGTON} 

                          
                    } ss. 
 COUNTY OF
KING             } 
 On this 22 day of August, 2014, before me, a Notary Public
in and for the State of Washington, personally appeared Alesia Pinney, personally known to me (or proved to me on the basis of satisfactory evidence) to be the person who executed this instrument; on oath stated that said individual was authorized
to execute the instrument, and acknowledged it as the EVP & General Counsel of AVALARA, INC., a Washington corporation, to be the free and voluntary act and deed of said corporation for the uses and purposes mentioned in the instrument. 

IN WITNESS WHEREOF, I have hereunto set my hand and official seal the day and year first above written. 

 

			
		 	 /s/ Paul Andre Barrera

		 	(Print Name) Paul Andre Barrera
		 	NOTARY PUBLIC in and for the State of Washington,
		 	residing at SEATTLE, WASHINGTON
		 	My appointment expires: 1/11/2016

  
 14 

 EXHIBIT A 

DESCRIPTION OF THE LAND 
 The
following described real property in the City of Seattle, County of King, State of Washington: 
 PARCEL A: 

LOTS 2, 3, 6 AND 7 IN BLOCK 14 OF ADDITION TO THE TOWN OF SEATTLE, AS LAID OUT ON THE CLAIMS OF C.D. BOREN, A.A. DENNY AND H.L. YESLER (COMMONLY KNOWN AS C.D.
BOREN’S ADDITION TO THE CITY OF SEATTLE), AS PER PLAT RECORDED IN VOLUME 1 OF PLATS, PAGE 25, RECORDS OF KING COUNTY, WASHINGTON; 
 EXCEPT THE
NORTHEASTERLY 9 FEET OF SAID LOTS CONDEMNED FOR STREET PURPOSES IN KING COUNTY SUPERIOR COURT CAUSE NO. 54135, AS PROVIDED BY ORDINANCE NO. 14345 OF THE CITY OF SEATTLE; 

TOGETHER WITH THE NORTHEASTERLY HALF OF THE ALLEY ADJOINING SAID PREMISES VACATED BY ORDINANCE NO. 107147 OF THE CITY OF SEATTLE WHICH ATTACHED BY OPERATION
OF LAW. 
 PARCEL B: 
 AN EASEMENT, AS ESTABLISHED UNDER
SECTION 1(B) OF THE MEMORANDUM OF DEVELOPMENT RIGHTS AGREEMENT, RECORDED MARCH 8, 1978, UNDER RECORDING NO. 7803080729, AS SAID SECTION WAS AMENDED BY SECTION 6(F) OF THE SUBORDINATION AND RECOGNITION AGREEMENT, RECORDED SEPTEMBER 27,
1978, UNDER RECORDING NO. 7809270979, AS ASSIGNED BY THOSE CERTAIN ASSIGNMENT AND ASSUMPTION OF DEVELOPMENT RIGHTS AGREEMENTS, EACH DATED AS OF DECEMBER 16, 1997 AND RECORDED DECEMBER 19, 1997 UNDER RECORDING NOS. 9712190957, 9712190958
AND 9712190959, FOR LIGHT AND AIR ABOVE THE ROOF LINE HEIGHT OF NOT MORE THAN 163 FEET ABOVE CITY OF SEATTLE DATUM OF THE IMPROVEMENTS ON THE FOLLOWING DESCRIBED PROPERTY: 

LOTS 1, 4, 5 AND 8 IN BLOCK 14 OF ADDITION TO THE TOWN OF SEATTLE, AS LAID OUT ON THE CLAIMS OF C.D. BOREN, A.A. DENNY, AND H.L. YESLER (COMMONLY KNOWN AS
C.D. BOREN’S ADDITION TO THE CITY OF SEATTLE), AS PER PLAT RECORDED IN VOLUME 1 OF PLATS, PAGE 25, RECORDS OF KING COUNTY, WASHINGTON; 
 EXCEPT THE
SOUTHWESTERLY 12 FEET THEREOF CONDEMNED FOR STREET PURPOSES IN DISTRICT COURT CAUSE NO. 7079 AS PROVIDED BY ORDINANCE NO. 1107 OF THE CITY OF SEATTLE; 

  
 Exhibit A - 1 

 TOGETHER WITH THAT PORTION OF THE ALLEY ADJOINING SAID PREMISES VACATED BY ORDINANCE NO. 107147 OF THE CITY OF
SEATTLE WHICH ATTACHED BY OPERATION OF LAW. 

  
 Exhibit A - 2

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