AMENDMENT NO. 1

TO

SERVICE PLAN (REIMBURSEMENT) (the “Plan”)

CLASS A SHARES

Of the Funds listed on Schedule A (each, a “Fund” and collectively, the “Funds”)

The Service Plan (the “Plan”), dated as of May 24, 2019, as subsequently amended, pursuant to Rule 12b-1, is hereby amended, dated April 17, 2020, as follows:

WHEREAS, the parties desire to amend the Plan to (i) remove Invesco Oppenheimer Real Estate Fund, effective April 17, 2020 and (ii) remove Invesco Oppenheimer Rochester Short Duration High Yield Municipal Fund, effective May 15, 2020;

NOW THEREFORE, Schedule A to the Plan is hereby deleted in its entirety and replaced with the following:

“SCHEDULE A

SERVICE PLAN (REIMBURSEMENT)

The following rates shall apply to each Fund listed below:

Share Class	Maximum Asset Based Sales Charge		Maximum Shareholder Services Fee			Maximum Aggregate Fee
Class A		NONE		0.25	%		0.25	%

AIM COUNSELOR SERIES TRUST (INVESCO COUNSELOR SERIES TRUST)

Invesco Oppenheimer Short Term Municipal Fund

Invesco Oppenheimer Senior Floating Rate Fund

Invesco Oppenheimer Senior Floating Rate Plus Fund

Invesco Oppenheimer Capital Appreciation Fund

Invesco Oppenheimer Discovery Fund”