The U.S. Postal Service's new postmark process could lead to late fees and penalties when mailing time-sensitive documents.
A four-ounce package sent via USPS Ground Advantage will rise 21% from $4.20 to $5.09 starting January 18, 2026, part of ...
A technical tweak and rising shipping costs are quietly reshaping how Americans must plan mailings as 2026 approaches.