If you put a stamp on a BRM envelope, the recipient is typically not charged for the postage.
This is a pre-authorized service that allows a person to mail a letter or postcard back to a company without applying a stamp. The company (permit holder) is billed only for the pieces actually returned. Key Format Requirements No Postage Necessary
The words "BUSINESS REPLY MAIL" must appear in capital letters (at least 3/16 inch high) above the address. If you put a stamp on a BRM
To be valid, the envelope or card must meet strict USPS Postal Explorer standards: No Postage Necessary
The permit number, city, and state of the issuing post office must be listed below the legend. Common Misconceptions