COLUMBIA FUNDS SERIES TRUST


                          Columbia Daily Cash Reserves
                                  (the "Fund")


     Supplement dated August 5, 2009 to the Prospectus dated August 1, 2009


On March 31, 2009, the U.S. Department of Treasury announced the second
extension of the Department's Temporary Guarantee Program for Money Market Funds
from April 30, 2009 through September 18, 2009 (the "Program"). The Board of
Trustees of the Fund, which currently participates in the Program, has approved
the Fund's participation in the second extension of the Program.

Similar to the prior phase of the Program, and subject to certain conditions and
limitations, share amounts held by investors in the Fund as of the close of
business on September 19, 2008 are guaranteed against loss under the Program in
the event the market-based net asset value per share is less than $0.995 (i.e.,
does not round to $1.00) (a "guarantee event") and the Fund subsequently
liquidates. The Program only covers the amount a shareholder held in the Fund as
of the close of business on September 19, 2008 or the amount a shareholder holds
if and when a guarantee event occurs, whichever is less. Accordingly, Fund
shares acquired by investors after September 19, 2008 generally are not eligible
for protection under the Program. A shareholder who has continuously maintained
an account with the Fund since September 19, 2008 would receive a payment for
each protected share equal to the shortfall between the amount received in the
liquidation and $1.00 per share in the case of a guarantee event. The Program is
subject to an overall limit of approximately $50 billion for all money market
funds participating in the Program.

The cost to participate in the second extension of the Program will be borne by
the Fund without regard to any expense limitation currently in effect for the
Fund.





        Shareholders should retain this Supplement for future reference.








INT-47/20943-0809