When a “Generous” Buyer is a Thief
Facebook Marketplace and Craigslist have made it easy to declutter your home, but they have also become a hunting ground for check fraud. The Overpayment Scam is a classic “con” that has been modernized for 2026.
It relies on a simple premise: a buyer sends you a payment that is significantly higher than your asking price, then asks you to send the “change” back to them or to a third-party “mover.”
How the Trap is Sprung
The scam moves through three specific phases that target your trust and your bank’s processing speed.
1. The Eager Buyer
You list an item for $200. A buyer messages you immediately. They don’t haggle; in fact, they are so eager they offer to pay extra to “hold” the item. They often claim they are out of town or moving and will send a “shipping agent” or a family member to pick it up later.
2. The “Accidental” Overpayment
The buyer sends you a cashier’s check or a digital payment for $1,200 instead of $200. They immediately message you with an apology: “I am so sorry, my assistant wrote the check for the wrong amount! Please just deposit it, keep an extra $50 for your trouble, and send the remaining $950 to my movers via Zelle/Venmo so they can come get the furniture.”
3. The Bounce
You deposit the check. Your bank shows the $1,200 as “Available” in your balance (this is the trap—availability does not mean the check has cleared). You send the $950 to the “movers.”
- The Reality: Three to five days later, the bank discovers the check is a high-quality forgery. They deduct the full $1,200 from your account.
- The Result: The $950 you sent to the “movers” (the scammer) was your own real money. It is gone, and the scammer has vanished.
Why Your Bank “Clears” Fake Checks
Under federal law, banks must make funds from deposited checks available quickly—usually within 1–2 business days. “Available” does not mean “Cleared.” It can take weeks for a bank to realize a check is fake. If you spend that money or send it elsewhere before the check truly clears, you are responsible for the debt.
How to Sell Safely
- Cash is King: For local pickups, insist on cash. If they can’t pay in person, don’t sell to them.
- No Third Parties: Never send money to “movers,” “shippers,” or “assistants” on behalf of a buyer. A legitimate buyer handles their own logistics.
- Ignore the “Pending” Email: Scammers often send fake emails that look like they are from PayPal or Zelle, saying “Payment Pending – Ship Item to Release Funds.” Real P2P apps do not hold funds until you ship an item for a private sale.
Internal Link Strategy
Protect Your Digital Storefront: Selling online shouldn’t feel like a gamble. Scammers often use stolen identities to look like “Verified” buyers. Learn how to [spot a deepfake profile picture] or see our [Smartphone Privacy Audit] to keep your selling apps secure.
Check out these other related articles:
Can You Trust Your Eyes? How to Spot a Deepfake Video Call in Real-Time
15-Minute Digital Hygiene Reset: 5 Settings to Change on Your Phone Today