The Federal Trade Commission (FTC) is the main agency that collects scam reports. Report the scam to the FTC online, or by phone at 1-877-382-4357 (9:00 AM - 8:00 PM, ET). The FTC accepts complaints about most scams, including these popular ones:
Computer support scams
Demands for you to send money (check, wire transfers, gift cards)
Student loan or scholarship scams
Prize, grants, and sweepstakes offers
The FTC also collects reports of identity theft. Report identity theft online at IdentityTheft.gov or by phone at 1-877-438-4338 (9:00 AM - 8:00 PM, ET).