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

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

USPS is making changes for 2026, including the postmark process — which could mean late fees and penalties for anyone mailing ...

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

A USPS postmark is used to indicate the date when mail was dropped in a mailbox or submitted at the post office counter. Now, ...

The United States Postal Service has changed the postmark process going into 2026, which potentially could add late fees and penalties to parcels.

Many users posted the claim along with a screenshot of a BlueSky user who wrote, "USPS quietly changed its postmark rules — ...

For decades, a USPS postmark has served as official evidence that mail was sent on time. In elections, many state laws treat ...

According to the USPS, the changes will take effect on Jan. 18, 2026. Priority Mail Service prices will increase by around ...

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

A technical tweak and rising shipping costs are quietly reshaping how Americans must plan mailings as 2026 approaches.