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

The USPS has issued new guidance clarifying that postmarks may not always reflect the actual date you mailed your letter or ...

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

The United States Postal Service has made a big change that could affect bill payments, tax returns, voting by mail-in ...

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