Exhibit (d)(21)
                                    FORM OF
                       COLUMBIA CALIFORNIA TAX-EXEMPT FUND
                      COLUMBIA CONNECTICUT TAX-EXEMPT FUND
                     COLUMBIA MASSACHUSETTS TAX-EXEMPT FUND
                        COLUMBIA NEW YORK TAX-EXEMPT FUND

                              MANAGEMENT AGREEMENT

AGREEMENT dated as of March __, 2006, between COLUMBIA FUNDS SERIES TRUST I, a
Massachusetts business trust (the "Trust"), with respect to its COLUMBIA
CALIFORNIA TAX-EXEMPT FUND, COLUMBIA CONNECTICUT TAX-EXEMPT FUND, COLUMBIA
MASSACHUSETTS TAX-EXEMPT FUND and COLUMBIA NEW YORK TAX-EXEMPT FUND series (the
"Funds"), and COLUMBIA MANAGEMENT ADVISORS, LLC (the "Advisor").

In consideration of the promises and covenants herein, the parties agree as
follows:

1.   The Advisor will manage the investment of the assets of the Funds in
     accordance with its prospectus and statement of additional information and
     will perform the other services herein set forth, subject to the
     supervision of the Board of Trustees of the Trust. The Advisor may delegate
     its investment responsibilities to a sub-advisor.

2.   In carrying out its investment management obligations, the Advisor shall:

     (a) evaluate such economic, statistical and financial information and
     undertake such investment research as it shall believe advisable;

     (b) purchase and sell securities and other investments for the Funds in
     accordance with the procedures described in its prospectus and statement of
     additional information; and

     (c) report results to the Board of Trustees of the Trust.

3.   The Advisor shall furnish at its expense the following:

     (a) office space, supplies, facilities and equipment;

     (b) executive and other personnel for managing the affairs of the Funds
     (including preparing financial information of the Funds and reports and tax
     returns required to be filed with public authorities, but exclusive of
     those related to custodial, transfer, dividend and plan agency services,
     determination of net asset value and maintenance of records required by
     Section 31(a) of the Investment Company Act of 1940, as amended, and the
     rules thereunder ("1940 Act")); and

     (c) compensation of Trustees who are directors, officers, partners or
     employees of the Advisor or its affiliated persons (other than a registered
     investment company).

4.   The Advisor shall be free to render similar services to others so long as
     its services hereunder are not impaired thereby.

5.   The Funds shall pay the Advisor monthly a fee at the annual rate of 0.50%
     on the first $1 billion of the Funds' combined daily net assets, 0.45% on
     the next $2 billion and 0.40% in excess of $3 billion.

6.   If the operating expenses of the Funds for any fiscal year exceed the most
     restrictive applicable expense limitation for any state in which shares are
     sold, the Advisor's fee shall be reduced by the excess but not to less than
     zero. Operating expenses shall not include brokerage, interest, taxes,
     deferred organization expenses, Rule 12b-1 distribution fees, service fees
     and extraordinary expenses, if any. The Advisor may waive its compensation
     (and bear expenses of the Funds) to the extent that expenses of the Funds
     exceed any expense limitation the Advisor declares to be effective.


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7.   This Agreement shall become effective as of the date of its execution, and
     (a) unless otherwise terminated, shall continue from year to year so long
     as approved annually in accordance with the 1940 Act; (b) may be terminated
     without penalty on sixty days' written notice to the Advisor either by vote
     of the Board of Trustees of the Trust or by vote of a majority of the
     outstanding shares of the Funds; (c) shall automatically terminate in the
     event of its assignment; and (d) may be terminated without penalty by the
     Advisor on sixty days' written notice to the Trust.

8.   This Agreement may be amended in accordance with the 1940 Act.

9.   For the purpose of the Agreement, the terms "vote of a majority of the
     outstanding shares", "affiliated person" and "assignment" shall have their
     respective meanings defined in the 1940 Act and exemptions and
     interpretations issued by the Securities and Exchange Commission under the
     1940 Act.

10.  In the absence of willful misfeasance, bad faith or gross negligence on the
     part of the Advisor, or reckless disregard of its obligations and duties
     hereunder, the Advisor shall not be subject to any liability to the Trust
     or the Funds, to any shareholder of the Trust or the Funds or to any other
     person, firm or organization, for any act or omission in the course of, or
     connected with, rendering services hereunder.

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     IN WITNESS WHEREOF the parties have caused this Agreement to be executed as
of the day and year first written above.

COLUMBIA FUNDS SERIES TRUST I
on behalf of its
COLUMBIA CALIFORNIA TAX-EXEMPT FUND
COLUMBIA CONNECTICUT TAX-EXEMPT FUND
COLUMBIA MASSACHUSETTS TAX-EXEMPT FUND
COLUMBIA NEW YORK TAX-EXEMPT FUND series


By:
    ---------------------------------
Name:   Christopher L. Wilson
      -------------------------------
Title:  President
       ------------------------------


COLUMBIA MANAGEMENT ADVISORS, LLC


By:
    ---------------------------------
Name:   Roger Sayler
      -------------------------------
Title:  Managing Director
       ------------------------------

A copy of the document establishing the Trust is filed with the Secretary of The
Commonwealth of Massachusetts. This Agreement is executed by officers not as
individuals and is not binding upon any of the Trustees, officers or
shareholders of the Trust individually but only upon the assets of the Funds.