AMENDMENT NO. 26 TO THE SECOND AMENDED AND RESTATED AGREEMENT AND DECLARATION OF TRUST OF AIM COUNSELOR SERIES TRUST (INVESCO COUNSELOR SERIES TRUST)

AMENDMENT NO. 26

TO THE SECOND AMENDED AND RESTATED

AGREEMENT AND DECLARATION OF TRUST OF

AIM COUNSELOR SERIES TRUST

(INVESCO COUNSELOR SERIES TRUST)

This Amendment No. 26 (the “Amendment”) to the Second Amended and Restated Agreement and Declaration of Trust of AIM Counselor Series Trust (Invesco Counselor Series Trust) (the “Trust”) amends, effective January 29, 2016, the Second Amended and Restated Agreement and Declaration of Trust of the Trust dated as of September 14, 2005, as amended (the “Agreement”).

Under Section 9.7 of the Agreement, this Amendment may be executed by a duly authorized officer of the Trust.

WHEREAS, the Trustees of the Trust approved this amendment and a vote of the Shareholders is not required for this amendment;

NOW, THEREFORE, the Agreement is hereby amended as follows:

1. Section 7.3 is amended to read as follows:

Section 7.3 Redemptions at the Option of the Trust. At the option of the Board of Trustees, the Trust may, from time to time, without the vote of the Shareholders, but subject to the 1940 Act, redeem shares of any Shareholder or authorize the closing of any Shareholder account, subject to such conditions as may be established from time to time by the Board of Trustees and disclosed to Shareholders.

2. All capitalized terms are used herein as defined in the Agreement unless otherwise defined herein. All references in the Agreement to “this Agreement” shall mean the Agreement as amended by this Amendment.

3. Except as specifically amended by this Amendment, the Agreement is hereby confirmed and remains in full force and effect.

IN WITNESS WHEREOF, the undersigned, a duly authorized officer of the Trust, has executed this Amendment as of January 29, 2016.

By: /s/ ▇▇▇▇ ▇. ▇▇▇▇

Name: ▇▇▇▇ ▇. ▇▇▇▇

Title: Senior Vice President