USPS Updated Postmark Process
Published on December 24, 2025
Important – The USPS has updated the postmark process effective December 24,2025.
USPS Postmark is the Day of Processing which will mean a +/- 1–2-day delay in the postmark date. This is critical for deadlines (taxes, ballot, etc.)
If you need Same-Day Postmark: Go to the USPS Counter and request a Manual Postmark. For more information go to: Postmarking Myths and Facts.