Check and Overpayment Fraud: Spotting Fake Checks and Payment Scams
Check fraud and overpayment scams are deceptively simple: someone sends you a check for more than the agreed amount, asks you to wire back the difference, and the original check bounces weeks later — leaving you on the hook. These scams target everyone from Craigslist sellers to small business owners.
Check and overpayment fraud is one of the oldest financial scams still thriving in the digital age. Despite the decline in paper check usage, the FTC reports that fake check scams remain among the most frequently reported fraud types. The mechanism is simple: the scammer sends a check for more than the amount owed, asks the victim to deposit it and wire back the "overpayment," and by the time the bank discovers the check is fraudulent (which can take weeks), the victim's wired money is gone and the bank holds the victim responsible for the full amount. Under federal law, banks must make funds from deposited checks available within days — but a check can take weeks to actually clear. The availability of funds does not mean the check is genuine.
Real-world example: A freelance graphic designer in Texas was hired by a "recruiter" to design a company logo. She quoted $1,500. The client sent a check for $3,850, explaining that it included payment for "printing services" — could she deposit the check and wire $2,350 to the printer? She deposited the check, saw the funds in her account, and wired the money. Two weeks later, the bank notified her the check was fraudulent. The $2,350 was gone, and she owed the bank $3,850.
Common Overpayment Scenarios
Fake Check for Online Sales
Someone responds to your online listing (Craigslist, Facebook Marketplace, eBay) and offers to pay with a cashier's check or money order for more than your asking price. They claim it is a mistake or that it includes payment for a "mover" or "shipper." They ask you to deposit the check and wire the difference. When the check bounces, you are out the full amount.
Secret Shopper or Job Scam
You are hired as a "secret shopper" or " payment processing agent." The employer sends a check to evaluate how quickly your bank processes deposits. You deposit it, then wire money to a "client" or "training account." The check is fake, but your wired money is real. There is no legitimate secret shopper program that requires you to wire money.
Overpayment for Services
A client pays you more than your quoted fee for freelance work, then asks you to pay the "excess" to a third party (a supplier, subcontractor, or charity). The client is a scammer, the third party is the scammer or a money mule, and the check is fraudulent.
Prize or Lottery Scams
You are told you have won a prize or lottery. The scammer sends a check to cover your "taxes" or "fees" and asks you to deposit it and wire the money to the tax agency. The check is fake, the prize does not exist, and you lose whatever you wire.
Red Flags and Warning Signs
Someone sends you a check for more than the agreed amount — this is almost always a scam. The person insists you use a specific payment method to return the overpayment — wire transfer, gift cards, cryptocurrency, or cash. The check is from an unfamiliar bank or appears to be a cashier's check or money order that looks different from legitimate ones. The person is in a hurry — "I need the overpayment wired today" or "my shipper is waiting." The person avoids meeting in person or talking on the phone. The transaction involves a third party you have never interacted with — "my agent," "my shipper," "the client." If the check appears legitimate but any of these conditions are present, do not deposit it. Take the check to your bank and ask them to verify it — they can usually tell if it is fraudulent.
How to Protect Yourself
Never accept a check for more than the agreed amount. If someone sends an overpayment, refuse the transaction entirely. Do not wire money to people you have never met in person. Wire transfers are essentially irreversible — once the money is picked up, it is gone. Wait for checks to fully clear — not just for funds to become available, but for the bank to confirm the check has actually been paid. This can take two weeks or more for international checks. Use secure payment methods: credit cards, PayPal Goods and Services, or escrow services offer buyer and seller protection that checks and wire transfers do not. Be skeptical of any transaction that requires you to pay a third party. For business transactions, use ACH transfers or wire transfers initiated by the buyer, not the seller. Implement payment verification procedures for your business. If you receive an overpayment, contact your bank immediately and do not touch the funds. Report the scam to the FTC at reportfraud.ftc.gov and the FBI's IC3 at ic3.gov.
What should I do if I deposited a fake check?
Contact your bank immediately and explain what happened. The sooner you report the fraud, the better your chances of recovering some or all of the funds. Stop all communication with the scammer. File a report with local law enforcement and the FBI's IC3. File a complaint with the FTC. If you wired money through Western Union or MoneyGram, contact their fraud departments immediately — they may be able to stop the transfer if it has not been picked up yet. Monitor your accounts closely for identity theft — scammers often use check fraud to gather personal information. Consider placing a fraud alert on your credit reports.
Related Resources
Job and Employment Scams
How scammers use fake job offers and work-from-home opportunities to commit fraud.
Advance Fee Fraud
Fraudulent upfront payments demanded for services that never materialize.
Money Mule Schemes
How criminals recruit unsuspecting individuals to launder money through their accounts.