US Postal Service changes postmark rules; what to know right now
Dec. 30, 2025Updated Dec. 31, 2025, 9:35 a.m. ET The U.S. Postal Service is making new changes in 2026, including adjustments to the postmark process, which could result in late fees and penalties for anyone mailing time-sensitive documents such as tax returns or bill payments. For decades, the postmark – an official mark that shows … Read more