09/05/2026
Effective September 26, 2025, you can report suspected counterfeit stamp and postage fraud using the Counterfeit Postage Reporting System (CPRS) and select the Counterfeit Postage option. Counterfeit stamps, often from China, mimic genuine issues in design and paper, but they usually fail in subtle details like perforation gauge, ink quality, watermark, and gum adhesion, all of which can be checked with magnification, UV light, and comparison to official references.
Secure the mail. Deliver justice. Protect us all. For 250 years, we have protected the U.S. Mail and everyone who uses it.