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 ...

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 USPS said a postmark reflects the date an envelope is first processed by an automated USPS sorting machine — not the ...

Many users posted the claim along with a screenshot of a BlueSky user who wrote, "USPS quietly changed its postmark rules — mail is no longer dated when you drop it off. The 'official' date is when it ...

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 ...

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

Have you ever put a check or card in an envelope, then flipped it over and realized you're not 100 percent sure what you need to write on the front of the envelope? Because so many of us hardly use ...

What is new at the post office in 2026? Here's what to know about Postal Service changes in postmark process, postage stamps ...