Mailing something on time may no longer mean what it used to.

Rumors that the United States Postal Service (USPS) updated its Domestic Mail Manual (DMM) to reflect new rules regarding postmarking procedures circulated online in late December 2025. Many users ...

While the IRS considers your return being filed on time as long as it's postmarked by the deadline, not all mail gets a postmark the day it's sent.

Add Yahoo as a preferred source to see more of our stories on Google. For decades, the postmark — a mark affixed by the Postal Service that shows where and when mail was accepted — has been used in ...

WASHINGTON — The United States Postal Service updated its explanation for how the postmark process works. Opponents of the change warn it could lead to late fees, penalties and other issues for people ...