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 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 ...

Changes at the U.S. Postal Service are forcing people who rely on postmarks when voting, filing taxes or mailing legal documents to be extra careful when cutting it close to deadlines. Postmarks ...

Richland County warns a USPS postmark change could delay mailed tax payments and trigger late penalties for 2025 real estate taxes.

The U.S. Postal Service's new postmark process could lead to late fees and penalties when mailing time-sensitive documents if you wait too long.

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 ...