The United States Postal Service has produced the Priority Mail Pre-Paid Flat Rate Stamped Envelope since 2003. This is a Priority Mail Flat Rate envelope with dimensions 12-1/2” x 9-1/2” (L x W) printed with a Priority Mail Stamp image.

Orders and usage of the envelope have steadily declined over the past several years while production and fulfillment costs have continued to rise. The Postal Service will discontinue further production of the Priority Mail Pre-Paid Flat Rate Stamped Envelope.

The Priority Mail Pre-Paid Flat Rate Stamped Envelope will remain available on the USPS.com/Postal Store until January 2022 or while supplies last. Customers that currently use these envelopes are encouraged to place any desired orders before supplies are depleted. Customers that order the Priority Mail Pre-Paid Flat Rate Stamped Envelope will be directed to the Priority Mail Forever Pre-Paid Flat Rate Envelope that is available on USPS.com/Postal Store for future orders.

The Priority Mail Forever Pre-Paid Flat Rate Envelope has Forever Postage applied to the envelope. The customer’s return address is printed in the upper left corner of the shipping label and USPS Tracking included.