Report Mail Fraud (USPIS)
Last updated September 18, 2026
The short answer
Report scams involving the U.S. mail, like fake checks, lottery letters, and mail theft
The U.S. Postal Inspection Service (USPIS) investigates crimes that involve the mail. If you received a fake check, lottery letter, fraudulent offer, or any scam through the U.S. Postal Service, USPIS is the right agency. They also handle mail theft and identity theft that involves stolen mail.
What they handle
- Lottery and sweepstakes scams received by mail
- Fake checks sent through the mail
- Mail theft and stolen mail
- Fraudulent offers and solicitations by mail
- Reshipping scams
- Identity theft involving stolen mail
How to file a report
- 1
Go to uspis.gov
Click on "Report a Crime" or "File a Complaint."
- 2
Choose the type of mail crime
Select the category that matches your situation.
- 3
Describe what happened
Include what you received, when, and any details about the sender.
- 4
Save any physical mail
Don't throw away the letter, envelope, or package. It's evidence. Handle it as little as possible.
- 5
Submit your report
You can also call 1-877-876-2455.
What you'll need
- The physical mail piece (letter, package, envelope). Don't throw it away
- Any checks, money orders, or financial documents received
- The sender's name and address (even if fake)
- Dates and descriptions of what happened
- Records of any money you sent
What to expect
Postal Inspectors are federal law enforcement agents with the power to arrest. They investigate and prosecute mail fraud cases. If your case is part of a larger scheme, an inspector may contact you. Keep the original mail as evidence.
Company guide
USPS scams
Knowing which scam you were hit by makes the report better. This is how scams impersonating USPS actually work, what the company will never ask you for, and the warning signs to recognise next time.
Read the guide →