Document:

Exhibit 4(r)

JEFFERSON
NATIONAL LIFE INSURANCE COMPANY

Home
Office: Dallas, Texas 75201

Administrative
Office: 10350 Ormsby Park Place, Louisville, Kentucky 40223

Telephone:
1-866-667-0561

(hereinafter called
the Company)

TAX
SHELTER 403(b) ENDORSEMENT

This endorsement
is made a part of and amends the Contract to which it is attached. The purpose of this endorsement is to qualify the Contract
as a 403(b) Tax Sheltered Annuity under Section 403(b) of the Code. All definitions, provisions, and exceptions of the Contract
apply to this endorsement unless changed by this endorsement. Terms not defined in this endorsement have the meaning given to
them in the Contract. In the event that the terms of this endorsement conflict with the Contract, this endorsement shall prevail
unless it would cause the Contract to fail to qualify as an insurance contract under state law. The endorsement and Contract shall
at all times be interpreted to conform to the requirements of the Code, including for the purpose to qualify the Contract under
Section 403(b) of the Code, as applicable.

The provisions
of the Contract, this endorsement and the exercise of your rights hereunder are subject to any conditions and/or limitations imposed
by the Employer's Plan. The Company shall rely on representations made by the sponsor of the Employer's Plan regarding the content
and meaning of any provision of the Employer's Plan. Except with respect to contract fees and charges, where the terms of the
Employer's Plan are inconsistent with the Contract and/or this endorsement, the terms of the Employer's Plan shall govern unless
such interpretation would cause the Contract to fail to qualify as an annuity that satisfies the requirements of Section 403(b)
of the Code.

ERISA
COVERAGE

Unless
otherwise required by the terms of the Employer's Plan, the Contract, as modified by this endorsement, is not intended for use
in connection with an employer sponsored plan that is subject to ERISA. In the event the Company is notified, in writing, that
the Employer's Plan is subject to ERISA, or becomes subject to ERISA, then the Contract is deemed to include the section entitled
"Special ERISA provisions." The Company is not responsible for any obligations and requirements that arise under ERISA
and any regulations or applicable guidance issued thereunder unless the Company explicitly agrees in writing otherwise.

DEFINITIONS

Jefferson
National Life Insurance Company

Jefferson
National Life Insurance Company ("Jefferson National Life", “Company” or "we"); the issuer of
the Contract and this endorsement and its designated corporate officers.

Annuitant:
You; the owner of the Contract.

Code:
The Internal Revenue Code of 1986, as amended from time to time.
The reference may also include regulations issued by the Internal Revenue Service that apply to the Contract.

Contract:
When used in this endorsement, Contract means the annuity contract or annuity certificate, to which this endorsement is attached.

Employer:
The organization with whom you have or had an employment relationship that has established a 403(b) plan to which you are
connected or in which you may participate by making Purchase Payment Contributions.

Employer's
Plan: The written 403(b) plan document established by your Employer.

ERISA:
Employee Retirement Income Security Act of 1974, as amended, and regulations thereunder.

IRS:
The Internal Revenue Service, United States Department of the Treasury.

QDRO:
A qualified domestic relations order as defined in Section 414(q) of the Code.

Required
Beginning Date

April 1
of the calendar year following the later of the calendar year in which you attain age 701⁄2 or the calendar year in which
you sever your employment with the Employer sponsoring the Employer's 403(b) Plan.

    	 

    	 

    

 

Surrender

The Annuitant's
right to terminate the Contract in exchange for the Contract's cash surrender value or other equivalent nonforfeiture values.
The terms "surrender" and "withdrawal" may be used interchangeably in the Contract.

Tax
Sheltered Annuity (TSA)

A tax sheltered
annuity as described in Section 403(b) of the Code. Jefferson National Life reserves the right to modify this Contract to the
extent necessary to qualify this Contract as a TSA, as described in Section 403(b) of the Code, as amended and all related sections
and regulations which are in effect during the term of this Contract.

PROVISIONS

This Contract
is established for the exclusive benefit of you or your beneficiaries. Your interest is nonforfeitable and nontransferable and
may not be waived, relinquished, or assigned, except as may be permitted under the Code, by law or applicable court order.

PURCHASE
PAYMENTS/CONTRIBUTIONS

Purchase
payments/contributions must be made by an organization described in Section 403(b)(1)(A), except in the case of a rollover contribution
as described in applicable sections of the Code and related regulations which are in effect during the term of this Contract.
The total of such purchase payments/contributions shall not exceed the lesser of the maximum contribution permitted under Sections
415(c) and 402(g) (taking into account the special limits applicable under 402(g)(7)) of the Code, subject to catch-up contributions
as permitted under Section 414(v) of the Code. All purchase payments must be made in cash. This Contract does not require fixed
purchase payments. Purchase Payment Contributions are always fully vested and nonforfeitable. Contributions that are identified
by you that are in excess of the applicable limits shall be returned to you in accordance with the requirements of applicable
law.

Notwithstanding
the preceding, nothing in the Contract shall prohibit Jefferson National Life from making corrective distributions in accordance
with an Employer's efforts to satisfy voluntary compliance programs established by the IRS to comply with 403(b) plan requirements.

If any
amount is contributed into the Contract by a good faith mistake of fact, such mistaken contribution may be returned to you if
such request by you is received within one year after receipt of the mistaken contribution.

The Company
reserves the right to reject any purchase payment or contribution.

ROLLOVER
CONTRIBUTIONS INTO THE CONTRACT

This Contract
may accept Rollovers from any Eligible Retirement Plan as defined in Section 402(c)(8)(B) of the Code to the extent the Contract
can accommodate such Rollovers in accordance with applicable requirements.

The Contract
may also accept Direct Rollovers into the designated 403(b) Roth account only from another designated 403(b) Roth account of a
403(b) annuity or custodial account in accordance with Section 402A(c)(3) of the Code, from a Roth 401(k) plan, or, if a Rollover
by the Annuitant, the amount of the 403(b) Roth distribution that is includable in gross income. The Company reserves the right
to reject any purchase payment or contribution.

PLAN
TO PLAN TRANSFERS TO THE CONTRACT

If permitted
by the Employer's Plan, the Contract may accept a plan to plan transfer of your interest in a 403(b) annuity contract and/or 403(b)(7)
custodial account issued to you under another employer's 403(b) plan only if:

	a.		the other 403(b) plan permits plan-to-plan transfers; and

	b.		you are an employee or former employee of the Employer sponsoring the 403(b) plan
under which your Contract was issued; and

	c.		your accumulated benefit immediately after the transfer is at least equal to your
accumulated benefit immediately before the transfer, without regard to normal contract fees, charges and expenses; and

	d.		the amount transferred into the Contract must remain subject to distribution restrictions
no less stringent than imposed by the transferor contract.

Jefferson
National Life may require any documentation from the other 403(b) plan as it deems necessary to effectuate the transfer in accordance
with Treas. Reg. §1.403(b)-10(b)(3) and other applicable IRS guidance and to confirm that the other plan is a plan that satisfies
section 403(b) of the Code.

 

    	 

    	 

    

The Company
reserves the right to reject any purchase payment or contribution.

CONTRACT
EXCHANGES TO THE CONTRACT

If permitted
by the Employer's Plan, the Contract may accept an exchange of 403(b) contracts and/or 403(b)(7) custodial accounts. Any such
exchange is permitted only if:

	a.		the accumulated benefit of the Contract immediately after the exchange is at least equal to the accumulated benefit of
                                                                              your 403(b) contract or 403(b)(7) custodial account immediately before the exchange; and

	b.		the Contract remains subject to distribution restrictions no less stringent than those
imposed by the 403(b) contract or 403(b)(7) custodial account sending the exchange; and

	c.		either Jefferson National
Life is included as an authorized 403(b) product provider under the Employer's Plan or Jefferson National Life and the Employer
enter into an agreement to share information for 403(b) compliance purposes, including, but not limited to information
on employment status, hardship distributions, distributions, transfers and exchanges.

The Company
reserves the right to reject any purchase payments or contributions.

NONDISCRIMINATION
REQUIREMENTS

Contributions
made by or on behalf of the Annuitant into the Employer's Plan are subject to the applicable nondiscrimination requirements of
Section 403(b)(12) of the Code. Amounts contributed for the Annuitant that cause the 403(b) Plan to fail to satisfy such requirements
may be refunded to the Annuitant or to the Employer, as appropriate, and in accordance with the Employer's Plan and IRS guidance.

DISTRIBUTIONS
FROM THE CONTRACT

Except
for amounts held in the Contract on December 31, 1988, no amounts, including 403(b) Roth Contributions, may be distributed from
the Contract unless one or more of the following conditions has been satisfied:

	a.		you have attained age 591⁄2;

	b.		you are disabled within the
meaning of Section 72(m)(7) of the Code;

	c.		your death has occurred;

	d.		you have severed employment
with your Employer; or

	e.		if permitted under the Employer's
Plan, you have satisfied the requirements for a "financial hardship" under Section 403(b)(11)(B) of the Code.

Additional
Restrictions on Financial Hardship Distributions

In the
event of a financial hardship that satisfies the requirements of Section 403(b)(11)(B)) of the Code, you may receive a distribution
of only Elective Deferral Contributions, including 403(b) Roth Contributions. Contract distributions of Nonelective Contributions
and/or earnings on your Contributions are not permitted for financial hardships. No hardship distribution is permitted from the
Contract unless the "safe harbor" standards with respect to establishing an immediate and heavy financial need (under
Treas. Reg. §1.401(k)-1(d)(3)(iii)(B)) are satisfied. For purposes of satisfying the lack of other resources requirement,
any method acceptable under Treas. Reg. §1.401(k)-1(d)(3)(iv)(E) is permitted, however, you must suspend elective deferrals
to any plan sponsored by your Employer for a period of six months following the date of the hardship distribution. Jefferson National
Life shall notify your Employer of any hardship distributions made to you.

Additional
Restrictions On Distributions Of Designated 403(b) Roth Accounts

Earnings
on distributions made from Designated 403(b) Roth Accounts may be includable in income unless the distribution is a "Qualified
403(b) Roth Distribution." Distributions from Designated 403(b) Roth Accounts are Qualified 403(b) Roth Distributions if
they are made no earlier than the fifth year following the year in which the first 403(b) Roth Contribution was made; and

	a.		you have attained age 591⁄2;
or

	b.		the distribution is made
after you have become disabled as defined under the Code; or

	c.		the distribution is made after your death.

    	 

    	 

    

 

DIRECT
ROLLOVER DISTRIBUTIONS

Notwithstanding
any other provision of the Contract, a Distributee may elect to have any portion of an Eligible Rollover Distribution paid directly
to an Eligible Retirement Plan specified by the Distributee in a Direct Rollover.

A Direct
Rollover of amounts in a Designated 403(b) Roth Account may be made only to another designated 403(b) Roth account of a 403(b)
annuity/custodial account, a Roth 401(k) plan, or a Roth IRA.

For purposes
of this section, a "Distributee" is any employee (or former employee) entitled to receive a distribution from the Contract,
a surviving spousal Beneficiary and any spouse or former spouse that qualifies as an alternate payee under a QDRO.

A nonspouse
Beneficiary may make a Direct Rollover into an inherited IRA or inherited Roth IRA of any proceeds from an Eligible Rollover Distribution
received from a deceased Annuitant's Contract. A spouse Beneficiary may make a Direct Rollover into an inherited IRA, inherited
Roth IRA, or their own IRA or Roth IRA of any proceeds from an Eligible Rollover Distribution received from a deceased Annuitant's
Contract.

REQUIRED
MINIMUM DISTRIBUTIONS

In accordance
with Sections 403(b)(10) and 401(a)(9) of the Code and supporting regulations, you must begin receiving distributions, including
distributions of 403(b) Roth contributions and earnings, by your Required Beginning Date, unless a later date is authorized under
the Code or applicable regulations. Your Contract shall be distributed (both in determining the timing of subsequent distributions
and the amount of all required distributions) in a manner consistent with Sections 403(b)(10) and 401(a)(9) of the Code. For purposes
of determining required minimum distributions, the Contract will be valued considering your accumulated benefit plus the actuarial
present value of any additional benefits provided. Distributions from the Contract, including distributions from your Designated
403(b) Roth Account, shall be made in the Annuity Payment Plan Option selected by you or your beneficiary on or before the date
which is at least 30 days before your Required Beginning Date. Partial withdrawals are also allowed in frequency and amount per
the provisions of the Contract.

Multiple
403(b) Annuity Contracts and Custodial Accounts

If you
have multiple 403(b) annuity contracts and/or custodial accounts, the required minimum distribution requirements may be satisfied
by receiving a distribution from one 403(b) annuity/custodial account that is equal to the amount required to satisfy the required
minimum distribution requirements for all of your 403(b) annuity contracts and custodial accounts. Under this method, you must
still calculate the required minimum distribution requirements separately for each 403(b) annuity/custodial account, even though
you can satisfy the minimum requirements by taking a distribution from one or more annuity contract/custodial account.

Annuity
Payment Plan Options

You can
schedule receipt of irrevocable annuity payments according to one of the plans described in your Contract, or another plan agreed
to by us, provided that the plan selected provides for payments that satisfy the Required Minimum Distribution rules described
above and payments are made in periodic payments at intervals of no longer than 1 year. For purposes of this section, required
distributions are considered to commence on your Required Beginning Date, or if applicable, on the date distributions are required
to begin to your surviving spouse. However, if you begin receipt of payments pursuant to an irrevocable annuity payment plan that
meets the requirements of Treasury Regulation Section 1.401(a)(9)-6T, Required Minimum Distributions are considered to commence
on your annuity starting date.

DISTRIBUTIONS
UPON DEATH

If you
have begun to receive irrevocable annuity payments under one of the plans described in your Contract, upon your death the remaining
portion of your interest will continue to be distributed under the annuity payment plan chosen.

If your
death occurs before you have begun to receive irrevocable annuity payments according to one of the plans described in your Contract,
then upon your death, your designated beneficiary may elect to receive a single sum payment or to receive regular installment
payments under one of the following options:

	a.		Any of the irrevocable annuity payment plans described in your Contract, provided:

	(i)		your beneficiary elects the plan within 60 days after we receive all administrative
requirements, including due proof of death; and

	(ii)		your Employer's Plan provides payments over a period which does not exceed the life
or life expectancy of your beneficiary and/or the plan selected provides for a period certain not extending beyond the life expectancy
of your beneficiary; and

	(iii)		your sole designated beneficiary
is your surviving spouse, and your death occurs prior to your Required Beginning Date, payments will irrevocably commence by the
later of December 31 of the calendar year

    	 

    	 

    

following
the calendar year of your death or December 31 of the calendar year in which you would have attained age 701⁄2; or

	(iv)		your designated beneficiary
is someone other than your surviving spouse, or your death occurs on or after your Required Beginning Date, payments will irrevocably
commence no later than December 31 of the calendar year following the year of your death.

	b.		If, upon your death, your beneficiary does not elect one of the irrevocable annuity
payment plans described in your Contract, or a single sum distribution, then your beneficiary may elect to receive payments according
to an alternative plan as agreed to by us provided:

	(i)		your beneficiary elects the
plan within 60 days after we receive due proof of death;

	(ii)		if your sole designated beneficiary
is your surviving spouse, your entire interest will be distributed, beginning no later than the later of December 31 of the calendar
year following the calendar year of your death or December 31 of the calendar year in which you would have attained age 701⁄2,
over the life of the surviving spouse or over a period not extending beyond the life expectancy of the surviving spouse. If your
surviving spouse dies before distributions commence, the remaining interest will be distributed, beginning no later than December
31 following the calendar year of your surviving spouse's death, over the spouse's designated beneficiary's remaining life expectancy
determined using such beneficiary's age as of his or her birthday in the year following the death of the spouse.

	(iii)		if your designated beneficiary
is someone other than your surviving spouse, your entire interest will be distributed, beginning no later than the end of the
calendar year following the calendar year of your death, over the remaining life expectancy of your designated beneficiary, with
such life expectancy determined using the age of your beneficiary as of his or her birthday in the year following the year of
your death and reduced by 1 for each subsequent year;

	(iv)		if you die before your Required
Beginning Date and there is no designated beneficiary (as defined in Section 1.401(a)(9)-1, Q&A-4), or if elected by your
designated beneficiary, your entire interest will be distributed by December 31 of the calendar year containing the fifth anniversary
of your death (or of your spouse's death if your designated beneficiary was your surviving spouse and the spouse dies before distributions
are required to begin);

	(v)		if you die on or after your
Required Beginning Date and there is no designated beneficiary (as defined in Section 1.401(a)(9)-1, Q&A-4), your entire interest
will be distributed, beginning no later than December 31 of the calendar year following the calendar year of your death, over
your remaining life expectancy determined using your age in the year of your death and reduced by 1 for each subsequent year;
and

	(vi)		life expectancy is determined
using the Single Life Table in Treasury Regulation Section 1.401(a)(9)-9, Q&A-1.

DISTRIBUTIONS
DUE TO TERMINATION OF THE EMPLOYER'S PLAN

Nothing
in this Contract shall prohibit Jefferson National Life from making a distribution of the Contract to you following written notification
by Employer (or Employer's representative) of the termination of the Employer's Plan with instructions from the Plan sponsor to
distribute the Contract to you.

The Contract
may not be distributed unless the instructions to distribute the contract conform to the requirements of Treas. Reg. 1.403(b)-10(a)
and any other applicable guidance issued by the Internal Revenue Service. Nothing herein shall prevent Jefferson National Life
from treating the Contract as a fully paid annuity upon termination of the Employer's Plan provided it would otherwise qualify
for such status.

PLAN
TO PLAN TRANSFERS AND EXCHANGES FROM THE CONTRACT

If permitted
by the Employer's Plan, the Contract may make a plan to plan transfer and/or an exchange of contracts to a 403(b) contract and/or
custodial account issued to you only if:

	a.		the Employer's Plan permits
the requested plan to plan transfer and/or exchange; and

	b.		the 403(b) plan that governs
the receiving plan to plan transfer or exchange permits such actions; and

	c.		the receiving 403(b) contract
and/or custodial account accepts plan to plan transfers and/or exchanges; and

	d.		you are an employee or former
employee of the Employer sponsoring the 403(b) plan under which the plan to plan transfer will be received; and

	e.		your accumulated benefit
immediately after the transfer or exchange is at least equal to your accumulated benefit immediately before the transfer or exchange,
without regard to normal contract fees, charges and expenses; and

	f.		the receiving 403(b) contract
or custodial account imposes distribution restrictions no less stringent than imposed by the transferor contract; and

    	 

    	 

    

	g.		either the receiving insurer
or custodian is included as an authorized 403(b) product provider under the 403(b) plan permitting the exchange or transfer or
the insurer or custodian receiving the exchange or transfer has executed an information sharing agreement with the sponsor of
the 403(b) plan permitting the exchange or transfer.

Jefferson
National Life may require any documentation from other 403(b) insurers and custodians as it deems necessary to comply with the
requirements of applicable IRS guidance and to confirm that the receiving contract or custodial account satisfies the requirements
of Section 403(b) of the Code.

QUALIFIED
DOMESTIC RELATIONS ORDERS

If permitted
by the QDRO, a distribution, including a distribution from a Designated 403(b) Roth Account, properly made to an alternate payee
may be permitted even though the timing of the distribution might otherwise be prohibited under the distribution restrictions
described previously.

PERMISSIVE
SERVICE CREDIT TRANSFERS

If permitted
by the Employer's Plan and if you are a participant in a tax-qualified defined benefit governmental plan (as defined in Section
414(d) of the Code) that accepts plan-to-plan transfers for the purchase of permissive service credits under Section 415(n)(3)(A)
of the Code, you may elect to have any portion of your Contract transferred to the defined benefit governmental plan at any time.

MILITARY
PERSONNEL RIGHTS

The Uniformed
Services Employment and Reemployment Rights Act (USERRA), prohibits discrimination against persons because of their service in
the Armed Forces Reserve, the National Guard, or other uniformed services. The Heroes Earning Assistance and Relief Act of 2008
(HEART) created additional rights for qualifying employees who leave employment or return to employment due to qualifying military
service. Notwithstanding any other provisions in the Contract, this Contract may be interpreted to conform to the requirements
of USERRA and HEART, as amended from time to time.

IRS
LEVY

The Company
may direct payment from your Contract in accordance with a lawfully issued tax levy issued by the Internal Revenue Service with
respect to you.

NONALIENABILITY

This Contract
may not be sold, assigned, transferred, discounted, or pledged as collateral for a loan or as security for the performance of
an obligation or for any other purpose to any person other than as may be required or permitted under Section 403(b) of the Code.
This restriction shall not apply to any rights to a Contract established by a QDRO.

SPECIAL
ERISA PROVISIONS

The provisions
of this section are applicable only if your Employer's Plan is subject to ERISA and your Employer so notifies the Company, in
writing. For Contracts that are not established in conjunction with an ERISA 403(b) plan, this section shall have no effect. The
terms and provisions of your Employer's Plan are incorporated into this Contract unless such action:

	1.		would cause the Contract to fail to meet the requirements of the Code or ERISA,

	2.		would cause the Contract not to qualify as annuity contract under Sections 401(f)(2)
or 403(b) of the Code, or

	3.		affects the rights and authority of Jefferson National Life under the Contract.

Subject
to the conditions above, the following provisions shall apply:

	a.		You and your beneficiaries authorize the Company and its representatives to follow
instructions provided by the Employer or the plan administrator of the Employer's Plan with respect to any transaction governed
by the Employer's Plan. Jefferson National Life is not responsible for ensuring that Employer's Plan complies with the requirements
of ERISA.

	b.		This Contract shall be interpreted, to the extent possible, to comply with the provisions
of ERISA and all rulings and regulations issued thereunder, provided that the Company shall not be responsible for complying with
the requirements of Title I of ERISA, either as to form or in operation.

	c.		This Contract is modified to permit Jefferson National Life to provide for distributions
that satisfy the

    	 

    	 

    

requirements
of Section 205 of ERISA, and applicable regulations.

	d.		If you are married, you must provide a written notarized consent signed by your legal
spouse to name someone other than your spouse as your beneficiary. You must also obtain your spouse's written consent prior to
obtaining a financial hardship withdrawal under the Contract.

	e.		If you are married, the automatic form of benefit payment is a qualified joint and
50% survivor annuity unless you provide a notarized spousal consent to an alternative form of distribution.

	f.		Any amount held under the Contract is not available to your creditors or is subject
in any manner to anticipation, alienation, sale, transfer, pledge, encumbrance, trustee process, garnishment, attachment, execution
or levy of any kind, except as otherwise required to satisfy a qualified domestic relations order (as defined under Section 414(p)
of the Code), payment of Contract expenses to Jefferson National Life or to a plan administrator as directed by your Employer
to pay your share of administrative expenses. Your Contract is not "transferable" within the meaning of Section 401(g)
of the Code and at no time shall it be possible for any part of this Contract to be used for, or directed to, purposes other than
the exclusive benefit of you and/or your beneficiaries.

	g.		You always have a nonforfeitable right to Elective Deferral Contributions and earnings
on those contributions in your Contract. You are also fully vested and have a nonforfeitable right to the value of your Contract
upon your attainment of age 65, termination of your Employer's Plan, or if your Employer completely discontinues all contributions
to the Employer's Plan.

	h.		The Company is not a "named fiduciary" under Section 402 of ERISA and shall
not become a fiduciary of any plan or act in any fiduciary capacity unless specifically agreed to, in writing.

	i.		No Contract may be merged or consolidated with, nor have its assets transferred to
any other retirement plan or trust, custodial account or annuity contract as a result of a merger or consolidation of your Employer's
Plan's unless the value of your Contract after the merger or consolidation is equal to the value of the Contract prior to such
merger or consolidation, subject only to investment gains or losses occurring during such merger or consolidation.

Your contract
will be subject to any applicable requirements of Title I of ERISA, even if the requirements are not specifically described in
this section.

PRIVACY
POLICY

The Company
has a written Privacy Policy that governs disclosure of confidential information about you and/or your Contract. All Contract
holders regularly receive a copy of that policy either by mail or electronically. However, as required by applicable law, Jefferson
National Life may be required to share certain information on you or your Contract that is necessary to ensure compliance with
the terms of your Employer's Plan document, ERISA, and/or IRS regulations governing the tax-deferred status of your Contract.
This information may be shared, as appropriate, with your Employer, a plan administrator providing services to your Employer's
Plan, and possibly with other 403(b) product providers. Only information necessary to ensure compliance will be shared and only
with the appropriate party.

MISCELLANEOUS
PROVISIONS

The provisions
of this endorsement are intended to comply with the requirements of Section 403(b) of the Code and regulations issued thereunder
and should be interpreted, whenever possible, to do so. These requirements are subject to change and this endorsement will follow
current requirements.

Certain
fund options may not be available within a 403(b) plan.

Jefferson
National Life reserves the right to amend the Contract and/or endorsement from time to time, when necessary or desirable to comply
with the provisions of the Code. We will request your consent for any amendment to the Contract and/or endorsement only if it
is required by the state in which the Contract was delivered. If you do not consent to an amendment, the Contract may no longer
qualify as a tax sheltered annuity under Section 403(b) of the Code.

This endorsement
replaces any previous 403(b) endorsement that may have been provided with the Contract.

 

    	 

    	 

    

 

Endorsement
Effective Date

This endorsement
is issued as of the contract date of this Contract unless a different date is shown here.

 

Signed
for Jefferson National Life Insurance Company

 

	Signed	Signed
	 	 
	President	SecretaryExhibit 4.5

 	
  

 

SUMMARY OF DIRECTOR COMPENSATION

The following is a summary of
the currently effective compensation of the non-employee directors of Commtouch Software Ltd. (the
“Company”) for services as directors: 

	
  

 	
  

 	
  

 
	
  

 	
 •

 	
 Directors
 are granted stock options, with new directors receiving an initial grant of
 50,000 options and continuing directors receiving an “evergreen” option grant
 of 16,667 options. At the annual meeting in October 2009, shareholders
 approved a one-time increase of the evergreen option grant to 30,000 options.

 
	
  

 	
 •

 	
 Through 2008, directors did not receive cash
 compensation for their services. However, at the annual meeting in December
 2008, shareholders approved the payment of cash compensation, in addition to
 the stated options compensation, according to the following: 

 

	
  

 	
  

 	
  

 
	
  

 	
 1.

 	
 NIS
 31,700 base annually per director, as linked to the applicable Israeli
 consumer price index, payable in four equal installments at the beginning of
 each calendar quarter; and 

 
	
  

 	
 2.

 	
 NIS
 1,590 per director per face to face Board or committee meeting or NIS954 (60%
 of NIS 1590) in case of telephonic participation at such meeting, payable at
 the beginning of each calendar quarter following the quarter during which a
 Board member participated in a meeting. No separate per meeting compensation
 will be paid for committee meetings that are held on the same day immediately
 prior or subsequent to a Board meeting. In that event, a Board and committee
 meeting will be considered one meeting.

 
	
  

 	
 3.

 	
 For
 non-Israeli based directors, the amounts set forth will be paid in United
 States dollars, according to the representative rate of exchange published by
 the Bank of Israel on the date of payment.

 

Other than the foregoing option grants, cash compensation and
reimbursement of expenses, the Company does not compensate its non-employee
directors for serving on its board of directors.

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