Document:

<PAGE>
                                                                     EXHIBIT 4.4

THIS DOCUMENT IS IMPORTANT AND REQUIRES YOUR IMMEDIATE ATTENTION. IF YOU ARE IN
ANY DOUBT AS TO THE ACTION TO BE TAKEN, YOU SHOULD IMMEDIATELY CONSULT YOUR
BROKER, BANK MANAGER, LAWYER, ACCOUNTANT, INVESTMENT ADVISOR OR OTHER
PROFESSIONAL.

         This document relates to an exchange offer (the "EXCHANGE OFFER") made
by Berkshire Hathaway Finance Corporation ("BHFC"). The Exchange Offer is
described in the Prospectus, dated [_____], 2004 (the "PROSPECTUS"), and in this
Letter of Transmittal (this "LETTER OF TRANSMITTAL"). All terms and conditions
contained or otherwise referred to in the Prospectus are deemed to be
incorporated in and form a part of this Letter of Transmittal. Therefore, you
are urged to read the Prospectus and the items referred to therein carefully.
The terms and conditions contained in the Prospectus, together with the terms
and conditions governing this Letter of Transmittal and the instructions herein,
are collectively referred to below as the "TERMS AND CONDITIONS."

                             LETTER OF TRANSMITTAL
                                  RELATING TO
              THE OFFER BY BERKSHIRE HATHAWAY FINANCE CORPORATION

                    TO EXCHANGE 4.20% SENIOR NOTES DUE 2010,
             UNCONDITIONALLY GUARANTEED BY BERKSHIRE HATHAWAY INC.

                              ("REGISTERED NOTES")

                                       FOR

                          4.20% SENIOR NOTES DUE 2010,
              UNCONDITIONALLY GUARANTEED BY BERKSHIRE HATHAWAY INC

                              ("OUTSTANDING NOTES")

         THE EXCHANGE OFFER FOR THE OUTSTANDING NOTES WILL EXPIRE AT 5:00 P.M.,
NEW YORK CITY TIME, ON [______], 2004, UNLESS EXTENDED BY BHFC (THE "EXPIRATION
DATE").

<PAGE>

         Each holder of Outstanding Notes wishing to accept the Exchange Offer,
except holders of Outstanding Notes executing their tenders through the
Automated Tender Offer Program ("ATOP") procedures of The Depository Trust
Company ("DTC"), should complete, sign and submit this Letter of Transmittal to
the exchange agent, J.P. Morgan Trust Company, National Association (as
successor to Bank One Trust Company, N.A.) (the "EXCHANGE AGENT"), on or prior
to the Expiration Date.

                 J.P. MORGAN TRUST COMPANY, NATIONAL ASSOCIATION
                      Institutional Trust Services OH1-0184
                         1111 Polaris Parkway, Suite 1N
                               Columbus, OH 43240
                                 Attn: Exchanges

         DELIVERY OF THIS LETTER OF TRANSMITTAL TO AN ADDRESS, OR TRANSMISSION
OF INSTRUCTIONS VIA A FACSIMILE NUMBER, OTHER THAN AS SET FORTH ABOVE OR IN
ACCORDANCE WITH THE INSTRUCTIONS HEREIN, WILL NOT CONSTITUTE VALID DELIVERY. THE
INSTRUCTIONS ACCOMPANYING THIS LETTER OF TRANSMITTAL SHOULD BE READ CAREFULLY
BEFORE THIS LETTER OF TRANSMITTAL IS COMPLETED.

         Questions regarding the Exchange Offer or the completion of this Letter
of Transmittal should be directed to the Exchange Agent, at : 1-800-346-5153.

         This Letter of Transmittal may be used to accept the Exchange Offer if
Outstanding Notes are to be tendered by effecting a book-entry transfer into the
Exchange Agent's account at DTC and instructions are not being transmitted
through DTC's ATOP procedures. Unless you intend to tender Outstanding Notes
through ATOP, you should complete, execute and deliver this Letter of
Transmittal, along with the physical certificates for the Outstanding Notes
specified herein, to indicate the action you desire to take with respect to the
Exchange Offer.

         Holders of Outstanding Notes tendering by book-entry transfer to the
Exchange Agent's account at DTC may execute the tender through ATOP, for which
the Exchange Offer is eligible. Financial institutions that are DTC participants
may execute tenders through ATOP by transmitting acceptance of the Exchange
Offer to DTC on or prior to the Expiration Date. DTC will verify acceptance of
the Exchange Offer, execute a book-entry transfer of the tendered Outstanding
Notes into the account of the Exchange Agent at DTC and send to the Exchange
Agent a "book-entry confirmation," which shall include an agent's message. An
"agent's message" is a message, transmitted by DTC to, and received by, the
Exchange Agent and forming part of a book-entry confirmation, which states that
DTC has received an express acknowledgement from a DTC participant tendering
Outstanding Notes that the participant has received and agrees to be bound by
the terms of the Letter of Transmittal as an undersigned thereof and BHFC may
enforce such agreement against the participant. Delivery of the agent's message
by DTC will satisfy the terms of the Exchange Offer as to execution and delivery
of a Letter of Transmittal by the DTC participant identified in the agent's
message. ACCORDINGLY, HOLDERS WHO TENDER THEIR OUTSTANDING NOTES THROUGH DTC'S
ATOP PROCEDURES SHALL BE BOUND BY, BUT NEED NOT COMPLETE, THIS LETTER OF
TRANSMITTAL.

         Subject to the terms and conditions and applicable law, BHFC will
issue: for each $1,000 principal amount of Outstanding Notes, $1,000 principal
amount of Registered Notes.

         Outstanding Notes may be exchanged in minimum denominations of $1,000
and integral multiples of $1,000 in excess thereof. Registered Notes will be
issued in minimum denominations of $1,000 and integral multiples of $1,000 in
excess thereof.

         Holders that anticipate tendering other than through DTC are urged to
promptly contact a bank, broker or other intermediary (that has the capability
to hold cash and securities custodially through DTC) to arrange for receipt of
any Registered Notes to be delivered pursuant to the Exchange Offer and to
obtain the information necessary to provide the required DTC participant and
account information in this Letter of Transmittal.

         Registered Notes will be issued in exchange for Outstanding Notes in
the Exchange Offer, if consummated, as soon as practicable after the Expiration
Date of the Exchange Offer (the "SETTLEMENT DATE").

                                       2
<PAGE>

                           TENDER OF OUTSTANDING NOTES

         To effect a valid tender of Outstanding Notes through the completion,
execution and delivery of this Letter of Transmittal, the undersigned must
complete the table below entitled "Description of Outstanding Notes Tendered"
and sign the Letter of Transmittal where indicated.

         Registered Notes will be delivered in book-entry form to holders
through DTC and only to the DTC account of the undersigned or the undersigned's
custodian, as specified below, on the Settlement Date, or as soon as practicable
thereafter.

         Failure to provide the information necessary to effect delivery of
Registered Notes will render such holder's tender defective, and BHFC will have
the right, which it may waive, to reject such tender without notice.

                    DESCRIPTION OF OUTSTANDING NOTES TENDERED
                           (SEE INSTRUCTIONS 2 AND 3)

                    NOTE: SIGNATURES MUST BE PROVIDED BELOW.

              PLEASE READ THE ACCOMPANYING INSTRUCTIONS CAREFULLY.

<TABLE>
<CAPTION>
---------------------------------------------------------------------------------------------
                           NAME OF DTC PARTICIPANT AND PARTICIPANT'S
                           ACCOUNT NUMBER IN WHICH OUTSTANDING NOTES     AGGREGATE PRINCIPAL
OUTSTANDING NOTES         ARE HELD AND/OR THE CORRESPONDING REGISTERED  AMOUNT OF OUTSTANDING
BEING TENDERED                      NOTES ARE TO BE DELIVERED.                  NOTES*
---------------------------------------------------------------------------------------------
<S>                       <C>                                           <C>
4.20% SENIOR NOTES DUE
2010                      -------------------------------------------------------------------
                          -------------------------------------------------------------------
(CUSIP: 084664AE1)
(CUSIP: U23797AC4)
---------------------------------------------------------------------------------------------
</TABLE>

*        THE PRINCIPAL AMOUNT OF OUTSTANDING NOTES TENDERED HEREBY MUST BE IN
         DENOMINATIONS OF U.S.$1,000 AND INTEGRAL MULTIPLES OF U.S.$1,000 IN
         EXCESS THEREOF WITH A MINIMUM TENDER REQUIREMENT OF U.S.$1,000. SEE
         INSTRUCTION 3.

                                       3
<PAGE>

         If the aggregate principal amount of the Outstanding Notes specified
was held as of the date of tender by more than one beneficial owner, you may
specify below the break-down of this aggregate principal amount by beneficial
owner, and, in doing so, hereby instruct the Exchange Agent to treat each such
beneficial owner as a separate holder. If the space below is inadequate, attach
a separate signed schedule using the same format.

<TABLE>
<CAPTION>
-----------------------------------------------------------------------------
BENEFICIAL OWNER NAME OR ACCOUNT
             NUMBER                     PRINCIPAL AMOUNT OF OUTSTANDING NOTES
-----------------------------------------------------------------------------
<S>                                     <C>
-----------------------------------------------------------------------------

-----------------------------------------------------------------------------

-----------------------------------------------------------------------------

-----------------------------------------------------------------------------
             TOTAL:
-----------------------------------------------------------------------------
</TABLE>

                           SPECIAL RETURN INSTRUCTIONS

  TO BE COMPLETED ONLY IF OUTSTANDING NOTES NOT ACCEPTED FOR EXCHANGE ARE TO BE
  SENT TO SOMEONE OTHER THAN THE PERSON OR PERSONS WHOSE SIGNATURE(S) APPEAR(S)
                       WITHIN THIS LETTER OF TRANSMITTAL.

                               (SEE INSTRUCTION 5)

<TABLE>
<CAPTION>
----------------------------------------------------------------------------
                   NAME OF DTC PARTICIPANT AND PARTICIPANT'S
                   ACCOUNT NUMBER TO WHICH OUTSTANDING NOTES
                 NOT ACCEPTED FOR EXCHANGE ARE TO BE DELIVERED.          *
----------------------------------------------------------------------------
<S>              <C>                                                     <C>

----------------------------------------------------------------------------
</TABLE>

                                       4
<PAGE>

                    NOTE: SIGNATURES MUST BE PROVIDED BELOW.
              PLEASE READ THE ACCOMPANYING INSTRUCTIONS CAREFULLY.

LADIES AND GENTLEMEN:

         The undersigned hereby tenders to BHFC the aggregate principal amount
of Outstanding Notes indicated in the table above entitled "Description of
Outstanding Notes Tendered."

         The undersigned understands that validly tendered Outstanding Notes (or
defectively tendered Outstanding Notes with respect to which BHFC has, or has
caused to be, waived such defect) will be deemed to have been accepted by BHFC
if, as and when BHFC gives oral or written notice thereof to the Exchange Agent.
The undersigned understands that subject to the terms and conditions,
Outstanding Notes properly tendered and accepted (and not validly withdrawn) in
accordance with the terms and conditions will be exchanged for Registered Notes.
The undersigned understands that Outstanding Notes delivered hereby may be
withdrawn at any time on or prior to the Expiration Date. The undersigned
understands that Outstanding Notes delivered hereby may not be withdrawn at any
time after the Expiration Date unless the Exchange Offer is extended with
changes in the terms of the Exchange Offer that are, in the reasonable judgment
of BHFC, materially adverse to the tendering holder. The undersigned understands
that, under certain circumstances, BHFC may not be required to accept any of the
Outstanding Notes tendered (including any Outstanding Notes tendered after the
Expiration Date). If any Outstanding Notes are not accepted for exchange for any
reason (or if Outstanding Notes are validly withdrawn), such unexchanged (or
validly withdrawn) Outstanding Notes will be returned without expense to the
undersigned's account at DTC or such other account as designated herein pursuant
to the book-entry transfer procedures described in the Prospectus, as promptly
as practicable after the expiration or termination of the Exchange Offer.

         Following the later of the Expiration Date or the date upon which
Outstanding Notes are tendered hereby, and subject to and effective upon BHFC's
acceptance for exchange of the principal amount of the Outstanding Notes
tendered hereby, upon the terms and conditions, the undersigned hereby:

         (1)      irrevocably sells, assigns and transfers to or upon the order
                  of BHFC or its nominees, all right, title and interest in and
                  to, and any and all claims in respect of or arising or having
                  arisen as a result of the undersigned's status as a holder of,
                  all Outstanding Notes tendered hereby, such that thereafter it
                  shall have no contractual or other rights or claims in law or
                  equity against BHFC or any fiduciary, trustee, fiscal agent or
                  other person connected with the Outstanding Notes arising
                  under, from or in connection with such Outstanding Notes;

         (2)      waives any and all rights with respect to the Outstanding
                  Notes tendered hereby (including, without limitation, any
                  existing or past defaults and their consequences in respect of
                  such Outstanding Notes); and

         (3)      releases and discharges BHFC and J.P. Morgan Trust Company,
                  National Association (as successor to Bank One Trust Company,
                  N.A.), as trustee (THE "TRUSTEE") from any and all claims the
                  undersigned may have, now or in the future, arising out of or
                  related to the Outstanding Notes tendered hereby, including,
                  without limitation, any and all claims that the undersigned is
                  entitled to receive additional principal or interest payments
                  with respect to the Outstanding Notes tendered hereby (other
                  than accrued and unpaid interest on the Outstanding Notes) or
                  to participate in any redemption or defeasance of the
                  Outstanding Notes tendered hereby.

         The undersigned understands that tenders of Outstanding Notes pursuant
to any of the procedures described in the Prospectus and in the instructions in
this Letter of Transmittal and acceptance of such Outstanding Notes by BHFC
will, following such acceptance, constitute a binding agreement between the
undersigned and BHFC upon the terms and conditions.

         All authority conferred or agreed to be conferred by this Letter of
Transmittal shall not be affected by, and shall survive, the death or incapacity
of the undersigned, and any obligation of the undersigned hereunder shall be
binding

                                        5
<PAGE>

upon the heirs, executors, administrators, trustees in bankruptcy,
personal and legal representatives, successors and assigns of the undersigned.

         The undersigned hereby represents, warrants and agrees that:

         (1)      it has received and reviewed the Prospectus;

         (2)      it is the beneficial owner (as defined below) of, or a duly
                  authorized representative of one or more such beneficial
                  owners of, the Outstanding Notes tendered hereby and it has
                  full power and authority to execute this Letter of
                  Transmittal;

         (3)      the Outstanding Notes being tendered hereby were owned as of
                  the date of tender, free and clear of any liens, charges,
                  claims, encumbrances, interests and restrictions of any kind,
                  and BHFC will acquire good, indefeasible and unencumbered
                  title to such Outstanding Notes, free and clear of all liens,
                  charges, claims, encumbrances, interests and restrictions of
                  any kind, when the same are accepted by BHFC;

         (4)      it will not sell, pledge, hypothecate or otherwise encumber or
                  transfer any Outstanding Notes tendered hereby from the date
                  of this Letter of Transmittal and agrees that any purported
                  sale, pledge, hypothecation or other encumbrance or transfer
                  will be void and of no effect;

         (5)      in evaluating the Exchange Offer and in making its decision
                  whether to participate therein by submitting this Letter of
                  Transmittal and tendering its Outstanding Notes, the
                  undersigned has made its own independent appraisal of the
                  matters referred to in the Prospectus and in any related
                  communications and is not relying on any statement,
                  representation or warranty, express or implied, made to such
                  holder by BHFC or the Exchange Agent other than those
                  contained in the Prospectus (as amended or supplemented to the
                  Expiration Date);

         (6)      the execution and delivery of this Letter of Transmittal shall
                  constitute an undertaking to execute any further documents and
                  give any further assurances that may be required in connection
                  with any of the foregoing, in each case on and subject to the
                  terms and conditions;

         (7)      the submission of this Letter of Transmittal to the Exchange
                  Agent shall, subject to a holder's ability to withdraw its
                  tender prior to the Expiration Date, and subject to terms and
                  conditions of the Exchange Offer generally, constitute the
                  irrevocable appointment of the Exchange Agent as its attorney
                  and agent, and an irrevocable instruction to such attorney and
                  agent to complete and execute all or any form(s) of transfer
                  and other document(s) at the discretion of such attorney and
                  agent in relation to the Outstanding Notes tendered hereby in
                  favor of BHFC or such other person or persons as they may
                  direct and to deliver such form(s) of transfer and other
                  document(s) in the attorney's and/or agent's discretion and
                  the certificate(s) and other document(s) of title relating to
                  such Outstanding Notes' registration and to execute all such
                  other documents and to do all such other acts and things as
                  may be in the opinion of such attorney or agent necessary or
                  expedient for the purpose of, or in connection with, the
                  acceptance of the Exchange Offer, and to vest in BHFC or its
                  nominees such Outstanding Notes; and

         (8)      the terms and conditions shall be deemed to be incorporated
                  in, and form a part of, this Letter of Transmittal, and the
                  terms and conditions shall be read and construed accordingly.

         The representations and warranties and agreements of a holder tendering
Outstanding Notes shall be deemed to be repeated and reconfirmed on and as of
the Expiration Date and the Settlement Date. For purposes of this Letter of
Transmittal, the "BENEFICIAL OWNER" of any Outstanding Notes shall mean any
holder that exercises sole investment discretion with respect to such
Outstanding Notes.

         The undersigned understands that tenders may not be withdrawn at any
time after the Expiration Date except as set forth in the Prospectus, unless the
Exchange Offer is extended with changes to the terms and conditions that are, in
the reasonable judgement of BHFC, materially adverse to the undersigned, in
which case tenders may be withdrawn under the conditions described in the
extension.

                                       6
<PAGE>

         If the Exchange Offer is amended in a manner determined by BHFC to be
materially adverse to tendering holders, BHFC will extend the Exchange Offer for
a period of two to ten business days, depending on the significance of the
amendment and the manner of disclosure to such holders, if the Exchange Offer
would otherwise have expired during such two- to ten-business day period. Any
change in the consideration offered to holders of Outstanding Notes in the
Exchange Offer shall be paid to all holders of Outstanding Notes whose
securities have previously been tendered and not withdrawn pursuant to the
Exchange Offer.

         If the "Special Return Instructions" box (found above) is completed,
please credit the indicated DTC account for any book-entry transfers of
Outstanding Notes not accepted for exchange.

         The undersigned recognizes that BHFC has no obligation under the
"Special Return Instructions" provision of this Letter of Transmittal to effect
the transfer of any Outstanding Notes from the holder(s) of such Outstanding
Notes if BHFC does not accept for exchange any of the principal amount of the
Outstanding Notes tendered pursuant to this Letter of Transmittal.

                                       7
<PAGE>

                                    SIGN HERE

         By completing, executing and delivering this Letter of Transmittal, the
undersigned hereby tenders to BHFC the principal amount of the Outstanding Notes
listed in the table set forth above labeled "Description of Outstanding Notes
Tendered."

_________________________________________________________    ___________________
Signature of Registered Holder(s) or Authorized Signatory           Date
           (see guarantee requirement below)

_________________________________________________________    ___________________
Signature of Registered Holder(s) or Authorized Signatory           Date
           (see guarantee requirement below)

_________________________________________________________    ___________________
Signature of Registered Holder(s) or Authorized Signatory           Date
           (see guarantee requirement below)

Area Code and Telephone Number:_________________________________________________

         If a holder of Outstanding Notes is tendering any Outstanding Notes,
this Letter of Transmittal must be signed by the Registered Holder(s) exactly as
the name(s) appear(s) on a securities position listing of DTC or by any
person(s) authorized to become the Registered Holder(s) by endorsements and
documents transmitted herewith. If the signature is by a trustee, executor,
administrator, guardian, attorney-in-fact, officer or other person, acting in a
fiduciary or representative capacity, please set forth at the line entitled
"Capacity (full title)" and submit evidence satisfactory to the Exchange Agent
and BHFC of such person's authority to so act. See Instruction 4.

Name(s):________________________________________________________________________

________________________________________________________________________________
                             (Please Type or Print)

Capacity (full title):__________________________________________________________

Address:________________________________________________________________________
                             (Including Zip Code)

                          MEDALLION SIGNATURE GUARANTEE
                       (If required -- See Instruction 4)

Signature(s) Guaranteed by
an Eligible Institution:________________________________________________________
                             (Authorized Signature)

________________________________________________________________________________
                                     (Title)

________________________________________________________________________________
                                 (Name of Firm)

________________________________________________________________________________
                                    (Address)

Dated:________________, 2004

                                       8
<PAGE>

                   INSTRUCTIONS FORMING PART OF THE TERMS AND
                        CONDITIONS OF THE EXCHANGE OFFER

         1.       DELIVERY OF LETTER OF TRANSMITTAL. This Letter of Transmittal
is to be completed by tendering holders of Outstanding Notes if tender of such
Outstanding Notes is to be made by book-entry transfer to the Exchange Agent's
account at DTC and instructions are not being transmitted through ATOP. HOLDERS
WHO TENDER THEIR OUTSTANDING NOTES THROUGH DTC'S ATOP PROCEDURES SHALL BE BOUND
BY, BUT NEED NOT COMPLETE, THIS LETTER OF TRANSMITTAL; THUS, A LETTER OF
TRANSMITTAL NEED NOT ACCOMPANY TENDERS EFFECTED THROUGH ATOP.

         A confirmation of a book-entry transfer into the Exchange Agent's
account at DTC of all Outstanding Notes delivered electronically, as well as a
properly completed and duly executed Letter of Transmittal (or a manually signed
facsimile thereof) or properly transmitted agent's message, and any other
documents required by this Letter of Transmittal, must be received by the
Exchange Agent at its address set forth herein on or prior to the Expiration
Date.

         Any financial institution that is a participant in DTC may
electronically transmit its acceptance of the Exchange Offer by causing DTC to
transfer Outstanding Notes to the Exchange Agent in accordance with DTC's ATOP
procedures for such transfer on or prior to the Expiration Date. The Exchange
Agent will make available its general participant account at DTC for the
Outstanding Notes for purposes of the Exchange Offer.

         DELIVERY OF A LETTER OF TRANSMITTAL TO DTC WILL NOT CONSTITUTE VALID
DELIVERY TO THE EXCHANGE AGENT. No Letter of Transmittal should be sent to BHFC
or DTC.

         The method of delivery of this Letter of Transmittal and all other
required documents, including delivery through DTC and any acceptance or agent's
message delivered through ATOP, is at the option and risk of the tendering
holder. If delivery is by mail, registered mail, with return receipt requested
and properly insured, is recommended. Instead of delivery by mail, it is
recommended that the holder use an overnight or hand-delivery service. In all
cases, sufficient time should be allowed to ensure timely delivery.

         Neither BHFC nor the Exchange Agent is under any obligation to notify
any tendering holder of Outstanding Notes of BHFC's acceptance of tendered
Outstanding Notes prior to the Expiration Date.

         2.       DELIVERY OF THE REGISTERED NOTES. Registered Notes to be
issued according to the terms of the Exchange Offer, if consummated, will be
delivered in book-entry form to holders of Outstanding Notes tendered in the
Exchange Offer. In order to permit such delivery, the appropriate DTC
participant name and number (along with any other required account information)
must be provided in the table entitled "Description of the Outstanding Notes."
Failure to do so will render a tender of the Outstanding Notes defective, and
BHFC will have the right, which it may waive, to reject such delivery. Holders
that anticipate participating in the Exchange Offer other than through DTC are
urged to promptly contact a bank, broker or other intermediary (that has the
capability to hold securities custodially through DTC) to arrange for receipt of
any Registered Notes delivered pursuant to the Exchange Offer and to obtain the
information necessary to complete the table.

         3.       AMOUNT OF TENDERS. Tenders of Outstanding Notes will be
accepted in denominations of U.S. $1,000 and integral multiples of U.S.$1,000 in
excess thereof. Book-entry transfers to the Exchange Agent should be made in the
exact principal amount of Outstanding Notes tendered.

         4.       SIGNATURES ON LETTER OF TRANSMITTAL; INSTRUMENTS OF TRANSFER;
GUARANTEE OF SIGNATURES. For purposes of this Letter of Transmittal, the term
"REGISTERED HOLDER" means an owner of record as well as any DTC participant that
has Outstanding Notes credited to its DTC account. Except as otherwise provided
below, all signatures on this Letter of Transmittal must be guaranteed by a
recognized participant in the Securities Transfer Agents Medallion Program, the
NYSE Medallion Signature Program or the Stock Exchange Medallion Program (each,
a "MEDALLION SIGNATURE CO-OBLIGOR"). Signatures on the Letter of Transmittal
need not be guaranteed if:

                                       9
<PAGE>

         -        the Letter of Transmittal is signed by a participant in DTC
                  whose name appears on a security position listing as the owner
                  of the Outstanding Notes and the holder(s) has not completed
                  the box entitled "Special Return Instructions" on the Letter
                  of Transmittal; or

         -        the Outstanding Notes are tendered for the account of an
                  "eligible institution."

         An "eligible institution" is one of the following firms or other
entities identified in Rule 17Ad-15 under the Securities Exchange Act of 1934
(as the terms are used in Rule 17Ad-15):

                  (a)      a bank;

                  (b)      a broker, dealer, municipal securities dealer,
         municipal securities broker, government securities dealer or government
         securities broker;

                  (c)      a credit union;

                  (d)      a national securities exchange, registered securities
         association or clearing agency; or

                  (e)      a savings institution that is a participant in a
         Securities Transfer Association recognized program.

         If any of the Outstanding Notes tendered are held by two or more
Registered Holders, all of the Registered Holders must sign the Letter of
Transmittal.

         BHFC will not accept any alternative, conditional, irregular or
contingent tenders. By executing the Letter of Transmittal (or facsimile
thereof) or directing DTC to transmit an agent's message, you waive any right to
receive any notice of the acceptance of your Outstanding Notes for exchange.

         If this Letter of Transmittal or instruments of transfer are signed by
trustees, executors, administrators, guardians or attorneys-in-fact, officers of
corporations or others acting in a fiduciary or representative capacity, such
persons should so indicate when signing and, unless waived by BHFC, evidence
satisfactory to BHFC of their authority to so act must be submitted with this
Letter of Transmittal.

         Beneficial owners whose tendered Outstanding Notes are registered in
the name of a broker, dealer, commercial bank, trust company or other nominee
must contact such broker, dealer, commercial bank, trust company or other
nominee if they desire to tender such Outstanding Notes.

         5.       SPECIAL RETURN INSTRUCTIONS. All Outstanding Notes tendered
hereby and not accepted for exchange will be returned to the undersigned
according to the information provided in the table entitled "Description of the
Outstanding Notes Tendered" or, if completed, according to the "Special Return
Instructions" box in this Letter of Transmittal.

         6.       TRANSFER TAXES. Except as set forth in this Instruction 6,
BHFC will pay or cause to be paid any transfer taxes with respect to the
transfer and sale of Outstanding Notes to it, or to its order, pursuant to the
Exchange Offer. If payment is to be made to, or if Outstanding Notes not
tendered or purchased are to be registered in the name of any persons other than
the Registered Holder, or if tendered Outstanding Notes are registered in the
name of any persons other than the persons signing this Letter of Transmittal,
the amount of any transfer taxes (whether imposed on the Registered Holder or
such other person) payable on account of the transfer to such other person will
be deducted from the payment unless satisfactory evidence of the payment of such
taxes or exemption therefrom is submitted.

         7.       VALIDITY OF TENDERS. All questions concerning the validity,
form, eligibility (including time of receipt), acceptance and withdrawal of
tendered Outstanding Notes will be determined by BHFC in its sole discretion,
which determination will be final and binding. BHFC reserves the absolute right
to reject any and all tenders of Outstanding Notes not in proper form or any
Outstanding Notes the acceptance for exchange of which may, in the opinion of
its counsel, be unlawful. BHFC also reserves the absolute right to waive any
defect or irregularity in

                                       10
<PAGE>

tenders of Outstanding Notes, whether or not similar defects or irregularities
are waived in the case of other tendered securities. The interpretation of the
terms and conditions by BHFC shall be final and binding on all parties. Unless
waived, any defects or irregularities in connection with tenders of Outstanding
Notes must be cured within such time as BHFC shall determine. None of BHFC, the
Exchange Agent or any other person will be under any duty to give notification
of defects or irregularities with respect to tenders of Outstanding Notes, nor
shall any of them incur any liability for failure to give such notification.

         Tenders of Outstanding Notes will not be deemed to have been made until
such defects or irregularities have been cured or waived. Any Outstanding Notes
received by the Exchange Agent that are not validly tendered and as to which the
defects or irregularities have not been cured or waived will be returned by the
Exchange Agent to the holders of Outstanding Notes, unless otherwise provided in
this Letter of Transmittal, as soon as practicable following the Expiration Date
or the withdrawal or termination of the Exchange Offer.

         8.       WAIVER OF CONDITIONS. BHFC reserves the absolute right to
amend or waive any of the conditions in the Exchange Offer concerning any
Outstanding Notes at any time.

         9.       WITHDRAWAL. Tenders may be withdrawn only pursuant to the
procedures and subject to the terms set forth in the Prospectus under the
caption "The Exchange Offer -- Withdrawal of Tenders."

         10.      REQUESTS FOR ASSISTANCE OR ADDITIONAL COPIES. Questions and
requests for assistance and requests for additional copies of the Prospectus and
this Letter of Transmittal may be directed to the Exchange Agent at the address
and telephone number indicated herein.

         11.      TAX IDENTIFICATION NUMBER. Federal income tax law requires
that a U.S. Holder (defined below) whose Outstanding Notes are accepted for
exchange must provide the Exchange Agent with his, her or its correct Taxpayer
Identification Number ("TIN"), which, in the case of an exchanging U.S. Holder
who is an individual, is his or her social security number. If the Exchange
Agent is not provided with the correct TIN or an adequate basis for exemption,
such holder may be subject to a $50 penalty imposed by the Internal Revenue
Service (the "IRS"), and payments made with respect to the Registered Notes or
the Exchange Offer may be subject to backup withholding at a rate of 30%
(subject to periodic reductions through 2010, at which time the rate is
currently scheduled to be increased to 31%). If withholding results in an
overpayment of taxes, a refund may be obtained.

         To prevent backup withholding, each exchanging U.S. Holder must provide
his, her or its correct TIN by completing the copy of the IRS Form W-9 attached
to this Letter of Transmittal, certifying that the TIN provided is correct (or
that such U.S. Holder is awaiting a TIN) and that the U.S. Holder is exempt from
backup withholding because (i) the holder has been notified by the IRS that he,
she or it is subject to backup withholding as a result of a failure to report
all interests or dividends, or (ii) the IRS has notified the U.S. Holder that
he, she or it is no longer subject to backup withholding. If the Outstanding
Notes are in more than one name or are not in the name of the actual owner,
consult the Form W-9 Instructions for information on which TIN to report. If you
do not provide your TIN to the Exchange Agent within 60 days, backup withholding
may begin and continue until you furnish your TIN.

         Exempt holders (including, among others, all corporations and certain
foreign individuals) are not subject to these withholding and reporting
requirements. See the enclosed copy of the IRS Form W-9. In order to satisfy
BHFC that a foreign individual qualifies as an exempt recipient, such holder
must submit a properly completed IRS Form W-8BEN (or other applicable form)
certifying, under penalty of perjury, to such holder's foreign status in order
establish an exemption from backup withholding. A copy of the Form W-8BEN is
attached to this Letter of Transmittal. Other applicable forms may be obtained
from the Exchange Agent.

         For the purposes of these instructions, a "U.S. HOLDER" is (i) a
citizen or resident of the United States, (ii) a corporation, or other entity
taxable as a corporation for U.S. federal income tax purposes, created or
organized in or under the laws of the United States or of any political
subdivision thereof, or (iii) an estate or trust the income of which is subject
to United States federal income taxation regardless of its source.

                                       11
<PAGE>

         12.      The exchange of Outstanding Notes for Registered Notes will
not be a taxable event for U.S. federal income tax purposes. See "Material
United States Federal Income Tax Consequences" in the Prospectus.

                                       12
<PAGE>

         In order to tender, a holder of Outstanding Notes should send or
deliver a properly completed and signed Letter of Transmittal and any other
required documents to the Exchange Agent at its address set forth below or
tender pursuant to DTC's Automated Tender Offer Program.

                  The Exchange Agent for the Exchange Offer is:

                 J.P. MORGAN TRUST COMPANY, NATIONAL ASSOCIATION

                      Institutional Trust Services OH1-0184
                         1111 Polaris Parkway, Suite 1N
                               Columbus, OH 43240
                                 Attn: Exchanges

         Any questions or requests for assistance or for additional copies of
the Prospectus, this Letter of Transmittal, or related documents may be directed
to the Exchange Agent at 1-800-346-5153. A holder of Outstanding Notes may also
contact such holder's custodian bank, depositary, broker, trust company or other
nominee for assistance concerning the Exchange Offer.<PAGE>

                                                                     Exhibit 4.5

                     BERKSHIRE HATHAWAY FINANCE CORPORATION

                                OFFER TO EXCHANGE

        $500,000,000 PRINCIPAL AMOUNT OF ITS 4.20% SENIOR NOTES DUE 2010
     UNCONDITIONALLY GUARANTEED BY BERKSHIRE HATHAWAY INC., WHICH HAVE BEEN
 REGISTERED UNDER THE SECURITIES ACT OF 1933, FOR ANY AND ALL 4.20% SENIOR NOTES
         DUE 2010, UNCONDITIONALLY GUARANTEED BY BERKSHIRE HATHWAY INC.

                                                                [______], 2004

To Brokers, Dealers, Commercial Banks,
Trust Companies and Other Nominees:

         We are enclosing herewith an offer by Berkshire Hathaway Finance
Corporation, a Delaware corporation (the "Company"), to exchange the Company's
new 4.20% Senior Notes Due 2010 (the "Exchange Notes") which have been
registered under the Securities Act of 1933, as amended (the "Securities Act"),
for any and all of the Company's outstanding 4.20% Senior Notes Due 2010 (the
"Original Notes"), upon the terms and subject to the conditions set forth in the
accompanying Prospectus, dated [__], 2004 (as the same may be amended and
supplemented from time to time, the "Prospectus"), and related Letter of
Transmittal (which together with the Prospectus constitutes the "Exchange
Offer").

         The Exchange Offer provides a procedure for holders to tender the
Original Notes by means of guaranteed delivery.

         The Exchange Offer will expire at 5:00 p.m., New York City time, on
[___], 2004, unless extended (the "Expiration Date"). Tendered Original Notes
may be withdrawn at any time prior to 5:00 pm., New York City time, on the
Expiration Date, if such Original Notes have not previously been accepted for
exchange pursuant to the Exchange Offer.

         Based on an interpretation by the staff of the Division of Corporation
Finance of the Securities and Exchange Commission (the "SEC") as set forth in
certain interpretive letters addressed to third parties in other transactions,
Exchange Notes issued pursuant to the Exchange Offer in exchange for Original
Notes may be offered for resale, resold and otherwise transferred by a holder
thereof (other than a holder that is an "affiliate" of the Company within the
meaning of Rule 405 under the Securities Act or a "broker" or "dealer"
registered under the Securities Exchange Act of 1934, as amended (the "Exchange
Act")), without compliance with the registration and prospectus delivery
provisions of the Securities Act, provided that such Exchange Notes are acquired
in the ordinary course of such holder's business and such holder is not
engaging, does not intend to engage, and has no arrangement or understanding
with any person to participate, in the distribution of such Exchange Notes. See
"Shearman & Sterling," SEC No-Action Letter (available July 2, 1993), "Morgan
Stanley & Co., Inc.," SEC No-Action Letter (available June 5, 1991), and "Exxon
Capital Holding Corporation," SEC No-Action Letter (available May 13, 1988).
Accordingly, each broker-dealer that receives Exchange Notes for its own account
pursuant to the Exchange Offer must acknowledge that it will deliver a
Prospectus in connection with any resale of those Exchange Notes.

         The Exchange Offer is not conditioned on any minimum aggregate
principal amount of Original Notes being tendered. Original Notes may be
tendered by each holder in a minimum aggregate principal amount of $1,000 and
integral multiples of $1,000 in excess thereof.

         Notwithstanding any other provisions of the Exchange Offer, or any
extension of the Exchange Offer, the Company will not be required to accept for
exchange, or to exchange any Exchange Notes for any Original Notes and may
terminate the Exchange Offer (whether or not any Original Notes have been
accepted for exchange) or may waive any conditions to or amend the Exchange
Offer, if any of the conditions described in the Prospectus under "The Exchange
Offer--Conditions to the Exchange Offer" have occurred or exist or have not been
satisfied.

                                        1
<PAGE>

         For your information and for forwarding to your clients for whom you
hold Original Notes registered in your name or in the name of your nominee, we
are enclosing the following documents:

     1.  A Prospectus, dated [___], 2004 relating to the Exchange Offer.

     2.  A Letter of Transmittal for your use and for the information of your
         clients.

     3.  A printed form of letter which may be sent to your clients for whose
         accounts you hold Original Notes registered in your name or in the name
         of your nominee, with space provided for obtaining such clients'
         instructions with regard to the Exchange Offer.

     4.  Guidelines for Certification of Taxpayer Identification Number on
         Substitute Form W-9 of the Internal Revenue Service (included in the
         Letter of Transmittal after the instructions thereto).

          WE URGE YOU TO CONTACT YOUR CLIENTS AS PROMPTLY AS POSSIBLE.

Any inquiries you may have with respect to the Exchange Offer may be addressed
to, and additional copies of the enclosed materials may be obtained from, the
Exchange Agent at the following telephone number: 1-800-346-5153.

                                        Very truly yours,

                                        Berkshire Hathaway Finance Corporation

NOTHING CONTAINED HEREIN OR IN THE ENCLOSED DOCUMENTS SHALL CONSTITUTE YOU AS
THE AGENT OF THE COMPANY, THE EXCHANGE AGENT OR ANY OTHER PERSON, OR AUTHORIZE
YOU OR ANY OTHER PERSON TO USE ANY DOCUMENT OR MAKE ANY STATEMENT ON BEHALF OF
ANY OF THEM IN CONNECTION WITH THE EXCHANGE OFFER OTHER THAN THE DOCUMENTS
ENCLOSED HEREWITH AND THE STATEMENTS CONTAINED THEREIN.

                                        2

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