Rumors that the United States Postal Service (USPS) updated its Domestic Mail Manual (DMM) to reflect new rules regarding postmarking procedures circulated online in late December 2025. Many users ...

USPS makes more changes to cut costs, improve service in 2026. Know how postmarks work to avoid late fees on bills, taxes. When do price changes start?

The United States Postal Service has changed the postmark process going into 2026, which potentially could add late fees and penalties for anyone mailing time-sensitive documents like tax documents or ...

The USPS said a postmark reflects the date an envelope is first processed by an automated USPS sorting machine — not the ...