CERTIFICATION OF SHAREHOLDER REPORT

     In connection with the Certified Shareholder Report of AIM Counselor Series
Trust (the "Company") on Form N-CSR for the period ended August 31, 2009, as
filed with the Securities and Exchange Commission (the "Report"), I, Philip A.
Taylor, Principal Executive Officer of the Company, certify, pursuant to 18
U.S.C. section 1350, as adopted pursuant to section 906 of the Sarbanes-Oxley
Act of 2002, that:

     (1) The Report fully complies with the requirements of Section 13(a) or
15(d) of the Securities Exchange Act of 1934; and

     (2) The information contained in the Report fairly presents, in all
material respects, the financial condition and results of operations of the
Company.


Date: November 6, 2009                  /s/ Philip A. Taylor
                                        ----------------------------------------
                                        Philip A. Taylor,
                                        Principal Executive Officer

     A signed original of this written statement required by Section 906, or
other document authenticating, acknowledging, or otherwise adopting the
signature that appears in typed form within the electronic version of this
written statement required by Section 906, has been provided by the Company and
will be retained by the Company and furnished to the Securities and Exchange
Commission or its staff upon request.



CERTIFICATION OF SHAREHOLDER REPORT

     In connection with the Certified Shareholder Report of AIM Counselor Series
Trust (the "Company") on Form N-CSR for the period ended August 31, 2009, as
filed with the Securities and Exchange Commission (the "Report"), I, Sheri
Morris, Principal Financial Officer of the Company, certify, pursuant to 18
U.S.C. section 1350, as adopted pursuant to section 906 of the Sarbanes-Oxley
Act of 2002, that:

     (1) The Report fully complies with the requirements of Section 13(a) or
15(d) of the Securities Exchange Act of 1934; and

     (2) The information contained in the Report fairly presents, in all
material respects, the financial condition and results of operations of the
Company.


Date: November 6, 2009                  /s/ Sheri Morris
                                        ----------------------------------------
                                        Sheri Morris,
                                        Principal Financial Officer

     A signed original of this written statement required by Section 906, or
other document authenticating, acknowledging, or otherwise adopting the
signature that appears in typed form within the electronic version of this
written statement required by Section 906, has been provided by the Company and
will be retained by the Company and furnished to the Securities and Exchange
Commission or its staff upon request.