COLUMBIA FUNDS SERIES TRUST I

              Columbia Connecticut Intermediate Municipal Bond Fund
             Columbia Massachusetts Intermediate Municipal Bond Fund
              Columbia New Jersey Intermediate Municipal Bond Fund
               Columbia New York Intermediate Municipal Bond Fund
             Columbia Rhode Island Intermediate Municipal Bond Fund
                                  (the "Funds")

    Supplement to the Statement of Additional Information dated March 1, 2007


Effective immediately, the Statement of Additional Information is hereby amended
with the addition of the  following  risk  disclosure.  This risk  disclosure is
being added  immediately  following  the  section  captioned  "RHODE  ISLAND TAX
CONSIDERATIONS" in the Funds' Statement of Additional Information.

Tax Development Risk

The U.S.  Supreme Court has agreed to hear an appeal of a  state-court  decision
that  might  significantly  affect  how states  tax  in-state  and  out-of-state
municipal  bonds.  If the Supreme Court  determines  that the U.S.  Constitution
prohibits  states from treating the interest income on in-state  municipal bonds
differently  from the interest income on out-of-state  municipal bonds for state
income tax purposes, most states likely will revisit the way in which they treat
the  interest  on  municipal   bonds.   This  has  the   potential  to  increase
significantly  the amount of state tax paid by shareholders  on  exempt-interest
dividends.  You should  consult  your tax advisor to discuss the  potential  tax
consequences  of your  investment  in the Funds.  This also has the potential to
cause a  decline  in the  value of the  municipal  securities  held by the Funds
which, in turn, would reduce the value of the Funds' shares.



INT-50/133742-0707                                                July 13, 2007

                          COLUMBIA FUNDS SERIES TRUST I

                Columbia Oregon Intermediate Municipal Bond Fund
                                  (the "Fund")

    Supplement to the Statement of Additional Information dated January 1, 2007


Effective immediately, the Statement of Additional Information is hereby amended
with the addition of the  following  risk  disclosure.  This risk  disclosure is
being  added  immediately  following  the second  paragraph  of the  sub-heading
"Oregon Intermediate  Municipal Bond Fund" in the section entitled "State Income
Taxes" in the Fund's Statement of Additional Information.

Tax Development Risk

The U.S.  Supreme Court has agreed to hear an appeal of a  state-court  decision
that  might  significantly  affect  how states  tax  in-state  and  out-of-state
municipal  bonds.  If the Supreme Court  determines  that the U.S.  Constitution
prohibits  states from treating the interest income on in-state  municipal bonds
differently  from the interest income on out-of-state  municipal bonds for state
income tax purposes, most states likely will revisit the way in which they treat
the  interest  on  municipal   bonds.   This  has  the   potential  to  increase
significantly  the amount of state tax paid by shareholders  on  exempt-interest
dividends.  You should  consult  your tax advisor to discuss the  potential  tax
consequences of your investment in the Oregon Intermediate  Municipal Bond Fund.
This also has the  potential  to cause a decline  in the value of the  municipal
securities held by the Fund which, in turn, would reduce the value of the Fund's
shares.



INT-50/133946-0707                                               July 13, 2007


                      Columbia California Tax-Exempt Fund
                      Columbia Connecticut Tax-Exempt Fund
                     Columbia Massachusetts Tax-Exempt Fund
                        Columbia New York Tax-Exempt Fund
                                  (the "Funds")

    Supplement to the Statement of Additional Information dated March 1, 2007


Effective immediately, the Statement of Additional Information is hereby amended
with the addition of the  following  risk  disclosure.  This risk  disclosure is
being  added   immediately   following  the  section  captioned  "NEW  YORK  TAX
CONSIDERATIONS" in the Funds' Statement of Additional Information.

Tax Development Risk

The U.S.  Supreme Court has agreed to hear an appeal of a  state-court  decision
that  might  significantly  affect  how states  tax  in-state  and  out-of-state
municipal  bonds.  If the Supreme Court  determines  that the U.S.  Constitution
prohibits  states from treating the interest income on in-state  municipal bonds
differently  from the interest income on out-of-state  municipal bonds for state
income tax purposes, most states likely will revisit the way in which they treat
the  interest  on  municipal   bonds.   This  has  the   potential  to  increase
significantly  the amount of state tax paid by shareholders  on  exempt-interest
dividends.  You should  consult  your tax advisor to discuss the  potential  tax
consequences  of your  investment  in the Funds.  This also has the potential to
cause a  decline  in the  value of the  municipal  securities  held by the Funds
which, in turn, would reduce the value of the Funds' shares.



INT-50/133947-0707                                                July 13, 2007