COLUMBIA MANAGEMENT.

                                                                    June 1, 2006

      State Street Bank and Trust Company
      2 Avenue de Lafayette, 4th Floor
      Boston, MA 02111
      Attention: Janine Donovan, Vice President

            Re: Banc of America Funds Trust (the "FUND")

      Ladies and Gentlemen:

      Please be advised that the undersigned Fund has been incorporated and
      registered as a management investment company under the Investment Company
      Act of 1940, as amended, with the following series:

            Banc of America Retirement 2005 Portfolio
            Banc of America Retirement 2010 Portfolio
            Banc of America Retirement 2015 Portfolio
            Banc of America Retirement 2020 Portfolio
            Banc of America Retirement 2025 Portfolio
            Banc of America Retirement 2030 Portfolio
            Banc of America Retirement 2035 Portfolio
            Banc of America Retirement 2040 Portfolio

      In accordance with Section 18, the Additional Funds provision, of the
      Master Custodian Agreement dated as of June 13, 2005, as amended, by and
      among each registered management investment company party thereto and
      State Street Bank and Trust Company, the undersigned Fund hereby requests
      that your bank act as Custodian for the Fund under the terms of the
      aforementioned contract. In connection with such request, the undersigned
      Fund hereby confirms to you, as of the date hereof, its representations
      and warranties set forth in Section 25 of the aforementioned contract.

                                                         MAIL CODE MA5-515-05-03
                                     ONE FINANCIAL CENTER, BOSTON, MA 02111-2081

            Columbia Management is the primary asset management group and is
                             non-bank subsidiary of Bank of America Corporation.

                                                               [ILLEGIBLE] Paper



Kindly indicate your acceptance of the foregoing by executing two copies of this
letter agreement, returning one to the Fund and retaining one for your records.

                            Sincerely,

                            BANC OF AMERICA FUNDS TRUST
                            on behalf of each series named on Exhibit A attached
                            hereto

                            By: /s/ Michael G. Clarke
                                ------------------------------------------------
                            Name: Michael G. Clarke
                            Title: Chief Accounting Officer, Duly Authorized

AGREED AND ACCEPTED:

STATE STREET BANK AND TRUST COMPANY

By: /s/  Joseph L. Hooley
    -----------------------------------------------
Name: Joseph L. Hooley
Title: Executive Vice President, Duly Authorized
Effective Date: June 1, 2006



                                    EXHIBIT A

BANC OF AMERICA FUNDS TRUST

Banc of America Retirement 2005 Portfolio
Banc of America Retirement 2010 Portfolio
Banc of America Retirement 2015 Portfolio
Banc of America Retirement 2020 Portfolio
Banc of America Retirement 2025 Portfolio
Banc of America Retirement 2030 Portfolio
Banc of America Retirement 2035 Portfolio
Banc of America Retirement 2040 Portfolio