Changes to how the U.S. mail is stamped are quietly rewriting the rules for anyone who relies on a postmark to prove they met ...

Here's what to know about 2026 Postal Service changes in postmark process, postage stamps and USPS shipping rates ...

A change in U.S. Postal Service processes will impact almost every item sent through the mail.

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

Taxpayers should take precautions: To avoid penalties, file electronically, ask for a manual postmark at the counter, or use ...

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

A recent change to United States Postal Service postmarking procedures could impact when mail is officially considered sent, ...

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

If you're mailing any time-sensitive documents, you may want to mail it earlier than usual under the agency's new postmark ...

A quiet technical update at USPS is changing how deadlines are proven—raising new questions about timing, trust, and mailed ...