Add Yahoo as a preferred source to see more of our stories on Google. A USPS postmark is an official mark that shows where and when mail was accepted by the Postal Service. It used to include the date ...

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 Unites States Postal Service is making changes for 2026, including the postmark process — which could mean late fees and penalties for anyone mailing time-sensitive documents such as tax returns ...

The Unites States Postal Service is making new changes in 2026, including the postmark process — which could cost you late fees and penalties for anyone mailing time-sensitive documents such as tax ...

Aptly-named snail mail might be getting even slower in 2026. The United States Postal Service has implemented new procedures for the new year, which could delay delivery. Among changes is the postmark ...