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 ...

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 ...

It's a new year, and there is a new change to the USPS postmark system that could impact time-sensitive mail. According to a Federal Register, starting on Dec. 24, 2025, mail would be postmarked based ...

Effective December 24, 2025, the United States Postal Service (USPS) adopted final rules that revise how postmarks are defined and treated. These changes have important implications for taxpayers who ...

The U.S. Postal Service has adopted a new rule that could create doubt about whether some ballots mailed by voters by Election Day will receive postmarks in time to be counted. A USPS rule that took ...

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 ...

Close to a deadline for mailing your ballot, tax return or legal document? To make sure it gets a postmark on time under the latest USPS changes,... Your ballot or other mail may not get postmarked by ...

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 ...