Most post office branches will maintain their regular hours on April 15. The IRS considers a tax return filed on time if it is addressed correctly, has enough postage, and is postmarked by April 15.

The U.S. Postal Service office near the Milwaukee Mitchell International Airport has moved to another location a mile and a half away. In mid-April, the airport mail facility closed its 5500 S ...

To check your local post office's hours, click here. You can also call USPS directly at 800-ASK-USPS (800-275-8777) to request detailed information about post office hours, mail pick-ups and ...