Express Mail Flat Rate

With Express Mail®, you already get…

Insurance coverage up to $100.

Signature proof of delivery available by request after delivery.

USPS Tracking™ to see tracking updates, including date and time of delivery or attempted delivery using our Track & Confirm tool.

Package Pickup to have your carrier pick up the package at your door.

Optional Hold For Pickup so customers can pick up valuable and perishable merchandise at a Post Office™.

You can add the following option online…

Insurance coverage from $101 to $5,000.

You can add the following options at a Post Office™…

Insurance coverage from $101 to $5,000.

Return Receipt with proof of delivery sent by email or postcard.

Collect on Delivery (COD) to receive payment when the item is delivered. Must meet additional requirements.

Learn more about Extra Services for business mailings ›

• Maximum weight is 70 lbs.
• There are restrictions for mailing restricted and hazardous materials.
  What’s considered restricted and hazardous?
• With few exceptions, cigarettes and smokeless tobacco shipments cannot be mailed.
  See tobacco restrictions and guidelines ›
• When sealing a Flat Rate Envelope or Flat Rate Box, the container flaps must be able to close within the normal folds.
• Sunday and holiday delivery costs an additional fee.
• Submit a refund request for failure of service within 30 days of the mailing date.
• The Money-back Guarantee will no longer be offered to American Samoa, Guam, the Commonwealth of the North Mariana Islands, the Republic of the Marshall Islands, the Federated States of Micronesia, and Palau. Postage refunds will only be available for total loss of a shipment to/from certain destinations. Retail and online service commitment calculations will display “Expected Delivery MM/DD” and “Loss Guarantee Only” for those locations without a Money-back Guarantee.