Form 12b-25
Notification of late filing
Form N-SAR
For Period Ended: August 31, 2008
Part I - Registrant Information
Columbia Funds Series Trust
One Financial Center
Boston, MA 02111

Part II - Rules 12-b25(b)
If the subject report could not be filed without unreasonable effort or
expense and the registrant seeks relief pursuant to Rule 12b-25(b), the
following should be completed.
(a)The reason described in reasonable detail in Part III of this form
could not be eliminated without unreasonable effort or expense.
(b)The subject annual report, semi-annual report, transition report on
Form 10-K, Form 20-F, Form 11-K, Form N-SAR or Form N-CSR will be filed
on or before the fifteenth calendar day following the prescribed due
date; or the subject quarterly report or transition report on Form 10-Q
or portion thereof, will be filed on or before the fifth calendar day
following the prescribed due date; and
(c)The accountants statement or other exhibit required by Rule 12b-25(c)
has been attached if applicable.

Part III - State below in reasonable detail why Forms 10-K, 20-F, 11-K,
10-Q, N-SAR, N-CSR, or the transition report or portion thereof, could
not be filed within the prescribed time period.

Additional time is required to properly state the required information
in Form N-SAR.

Part IV - Other Information

(1)Name and telephone number of person to contact in regard to this
notification Michael Clarke 617-585-4130
(2)Have all other periodic reports required under Section 13 or 15(d)
of the Securities Exchange Act of 1934 or Section 30 of the Investment
Company Act of 1940 during the preceding 12 months or for such shorter
period than the registrant was required to file such report(s) been
filed? Yes
(3)Is it anticipated that any significant change in results of operations
from the corresponding period for the last fiscal year will be reflected
be the earnings statements to be included in the subject report or portion
thereof? No
Columbia Funds Series Trust has caused this notification
to be signed on its behalf by the undersigned hereunto duly authorized.

October 31, 2008 By: Michael Clarke