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 ...

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

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

Since 1954, anyone sending in their tax forms to the IRS via mail could use the postmark on their envelope as their date of ...

The U.S. Postal Service is warning customers that mail dropped in collection boxes may no longer receive a same-day postmark.

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 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, potentially affecting everything from bill payments to ballot counting.

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