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                                                                    EXHIBIT 4.11

                     BERKSHIRE HATHAWAY FINANCE CORPORATION

                                OFFER TO EXCHANGE

        $400,000,000 PRINCIPAL AMOUNT OF ITS 5.10% SENIOR NOTES DUE 2014
             UNCONDITIONALLY GUARANTEED BY BERKSHIRE HATHAWAY INC.,
                           WHICH HAVE BEEN REGISTERED
             UNDER THE SECURITIES ACT OF 1933, FOR ANY AND ALL 5.10%
                SENIOR NOTES DUE 2014, UNCONDITIONALLY GUARANTEED
                           BY BERKSHIRE HATHAWAY INC.

                                                                         [_____]

To Our Clients:

            Enclosed for your consideration are the Prospectus, dated [_____]
(as the same may be amended and supplemented from time to time, the
"Prospectus"), and the related Letter of Transmittal (which together with the
Prospectus constitute the "Exchange Offer"), in connection with the offer by
Berkshire Hathaway Finance Corporation, a Delaware corporation (the "Company"),
to exchange the Company's new 5.10% Senior Notes Due 2014 (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 5.10% Senior
Notes Due 2014 (the "Outstanding Notes"), upon the terms and subject to the
conditions set forth in the Exchange Offer. The Exchange Offer will expire at
5:00 p.m. New York City time, on [_____], unless extended (the "Expiration
Date").

            We are holding Outstanding Notes for your account. An exchange of
the Outstanding Notes can be made only by us and pursuant to your instructions.
The Letter of Transmittal is furnished to you for your information only and
cannot be used by you to exchange the Outstanding Notes held by us for your
account. The Exchange Offer provides a procedure for holders to tender by means
of guaranteed delivery.

            We request information as to whether you wish us to exchange any or
all of the Outstanding Notes held by us for your account upon the terms and
subject to the conditions of the Exchange Offer.

            Your attention is directed to the following;

      1.    The forms and terms of the Exchange Notes are the same in all
            material respects as the forms and terms of the Outstanding Notes
            (which they replace), except that the Exchange Notes have been
            registered under the Securities Act. The Exchange Notes will bear
            interest from the most recent interest payment date to which
            interest has been paid on the Outstanding Notes or, if no interest
            has been paid, from July 19, 2004.

      2.    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 Outstanding Notes may be
            offered for resale, resold and otherwise transferred by a holder
            thereof (other than a holder which 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 Holdings 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.

      3.    The Exchange Offer is not conditioned on any minimum aggregate
            principal amount of Outstanding Notes being tendered. Outstanding
            Notes may be tendered by each holder in a minimum aggregate
            principal amount of $2,000 and integral multiples of $1,000 in
            excess thereof.

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      4.    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
            Outstanding Notes and may terminate the Exchange Offer (whether or
            not any Outstanding 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.

      5.    Tendered Outstanding Notes may be withdrawn at any time prior to
            5:00 p.m., New York City time, on the Expiration Date, if such
            Outstanding Notes have not previously been accepted for exchange
            pursuant to the Exchange Offer.

      6.    Any transfer taxes applicable to the exchange of Outstanding Notes
            pursuant to the Exchange Offer will be paid by the Company, except
            as otherwise provided in the Letter of Transmittal.

            If you wish to have us tender any or all of your Outstanding Notes,
please so instruct us by completing and returning to us the instruction form
attached hereto. If you authorize a tender of your Outstanding Notes, the entire
principal amount of Outstanding Notes held for your account will be tendered
unless otherwise specified on the instruction form. Your instructions should be
forwarded to us in ample time to permit us to submit a tender on your behalf by
the Expiration Date.

            The Exchange Offer is not being made to, nor will tenders be
accepted from or on behalf of, holders of the Outstanding Notes in any
jurisdiction in which the making of the Exchange Offer or acceptance thereof
would not he in compliance with the laws of such jurisdiction or would otherwise
not he in compliance with any provision of any applicable securities law.

                                       2<PAGE>

                                                                    EXHIBIT 4.12

                     BERKSHIRE HATHAWAY FINANCE CORPORATION

                                OFFER TO EXCHANGE

        $700,000,000 PRINCIPAL AMOUNT OF ITS 3.40% SENIOR NOTES DUE 2007
             UNCONDITIONALLY GUARANTEED BY BERKSHIRE HATHAWAY INC.,
                           WHICH HAVE BEEN REGISTERED
 UNDER THE SECURITIES ACT OF 1933, FOR ANY AND ALL 3.40% SENIOR NOTES DUE 2007,
              UNCONDITIONALLY GUARANTEED BY BERKSHIRE HATHAWAY INC.

Instructions from Beneficial Owner

            The undersigned acknowledge(s) receipt of your letter and the
enclosed Prospectus and the related Letter of Transmittal in connection with the
offer by the Company to exchange the Exchange Notes for Outstanding Notes.

            This will instruct you to tender the principal amount of Outstanding
Notes indicated below held by you for the account of the undersigned, upon the
terms and subject to the conditions set forth in the Prospectus and the related
Letter of Transmittal.

            The undersigned represents that (i) the Exchange Notes acquired
pursuant to the Exchange Offer are being obtained in the ordinary course of the
undersigned's business, (ii) the undersigned 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, (iii) the undersigned is not an
"affiliate," as defined under Rule 405 of the Securities Act, of the Company and
(iv) the undersigned is not acting on behalf of any person or entity that could
not truthfully make these statements. If the undersigned is a broker-dealer, it
acknowledges that it will deliver a copy of the Prospectus in connection with
any resale of the Exchange Notes.

                                                      Sign Here

                                         _____________________________________
                                                     Signatures(s)

<PAGE>

Securities which are to be tendered:

Tender all of the Outstanding Notes

     Aggregate Principal Amount*

 [ ] Outstanding Notes ____________

_____________________________________
         Name(s) (Please Print)

_____________________________________
             Address

_____________________________________
            Zip Code

_____________________________________
    Area Code and Telephone No.

Dated:__________________, 200[_]

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* Unless otherwise indicated, it will be assumed that all of the Outstanding
Notes listed are to be tendered.

                                       2<PAGE>

                                                                    EXHIBIT 4.13

                     BERKSHIRE HATHAWAY FINANCE CORPORATION

                                OFFER TO EXCHANGE

        $400,000,000 PRINCIPAL AMOUNT OF ITS 5.10% SENIOR NOTES DUE 2014
             UNCONDITIONALLY GUARANTEED BY BERKSHIRE HATHAWAY INC.,
                           WHICH HAVE BEEN REGISTERED
 UNDER THE SECURITIES ACT OF 1933, FOR ANY AND ALL 5.10% SENIOR NOTES DUE 2014,
              UNCONDITIONALLY GUARANTEED BY BERKSHIRE HATHAWAY INC.

Instructions from Beneficial Owner

      The undersigned acknowledge(s) receipt of your letter and the enclosed
Prospectus and the related Letter of Transmittal in connection with the offer by
the Company to exchange the Exchange Notes for Outstanding Notes.

      This will instruct you to tender the principal amount of Outstanding Notes
indicated below held by you for the account of the undersigned, upon the terms
and subject to the conditions set forth in the Prospectus and the related Letter
of Transmittal.

      The undersigned represents that (i) the Exchange Notes acquired pursuant
to the Exchange Offer are being obtained in the ordinary course of the
undersigned's business, (ii) the undersigned 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, (iii) the undersigned is not an
"affiliate," as defined under Rule 405 of the Securities Act, of the Company and
(iv) the undersigned is not acting on behalf of any person or entity that could
not truthfully make these statements. If the undersigned is a broker-dealer, it
acknowledges that it will deliver a copy of the Prospectus in connection with
any resale of the Exchange Notes.

                                                         Sign Here

                                           _____________________________________
                                                        Signatures(s)

<PAGE>

Securities which are to be tendered:

Tender all of the Outstanding Notes

     Aggregate Principal Amount*

 [ ] Outstanding Notes ____________

______________________________________
        Name(s) (Please Print)

______________________________________
            Address

______________________________________
            Zip Code

______________________________________
   Area Code and Telephone No.

Dated:__________________, 200[_]

--------------
* Unless otherwise indicated, it will be assumed that all of the Outstanding
Notes listed are to be tendered.

                                       2

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