A Gumtree “buyer” sends a cashier’s check, money order, bank draft, or corporate check for more than your asking price, then asks you to refund the difference—by wire, bank transfer, Zelle, Cash App, Venmo Friends & Family, or gift cards—before the instrument fully clears. Funds can look available at Chase, Wells Fargo, Bank of America, or a credit union for days, then the check returns unpaid and you are short whatever you already forwarded. This page is the overpayment / fake-check lane; meetup and off-app payment cousins live in Fake Gumtree meetup scams. Classifieds cousins: Fake Craigslist overpayment scams.
Broader map: Credit and debt scams. Gift-card extracts: Gift cards and prepaid debit risks. General fake-check patterns: Fake overpayment check scams.
How the overpayment script works
| Step | What they say | What actually happens |
|---|---|---|
| Inflated instrument | “My assistant cut a £900 / $900 check for your $350 bike by mistake” | Counterfeit or stolen-account check |
| Urgency | “Courier is already booked—just refund the difference to the shipper” | You send real money while the check is still provisional |
| Off-platform chat | Move to Gmail / WhatsApp / SMS | Harder to report inside Gumtree tools |
| Payment channel | Wire, bank transfer, Western Union, MoneyGram, Zelle, Cash App, gift cards | Hard or impossible to reverse (Zelle and P2P scams) |
| Ghost | Account deleted after you pay | Bank clawback leaves you owing the deposit |
Gumtree operates in multiple countries; the overpayment math is the same whether the listing is U.S.-facing or UK/AU-side. Treat any “extra” as a hard stop—even if the PDF looks like a real credit-union cashier’s check.
Red flags specific to overpayment
- Asking price is local and small; payment arrives from out of area for a much larger amount.
- Buyer will not do cash at a public meetup and insists on a mailed check or bank draft first.
- “Shipping company,” “moving crew,” or “procurement office” needs the difference wired same day.
- Pressure to refund before your bank confirms the check has fully cleared (posted availability is not clearance).
- Refusal to use in-person payment when the listing is marked local pickup / collection only.
Worked example: the $350 road bike
Riley lists a used road bike for $350 on Gumtree. “Pat” emails a PDF of a $925 cashier’s check, says a logistics contractor will pick up, and asks Riley to wire or Zelle $575 change. Riley deposits the check at Wells Fargo; $925 shows as available after two business days. Riley wires $575. Ten days later the check is returned unpaid. Riley is out roughly $575 (plus any fees) while the wire is gone—and if the bike was handed over, that too.
Riley’s recovery path: call the bank fraud desk the same day; ask about a wire recall (often unsuccessful once paid out); report through Gumtree’s flag tools and ReportFraud.ftc.gov (or Action Fraud / the relevant national portal when the deal was UK/AU-side); file a local police report if needed for the bank’s claim file; do not pay a “recovery specialist” who cold-calls afterward. Safer path: cash only at a police-station lot, exact asking price, no third-party refunds.
Safer seller habits
- Prefer in-person cash (or a platform checkout that holds funds when one exists) for local Gumtree deals.
- Never accept a check for more than the agreed price. Never refund “extras.”
- If you must take a check, wait until your bank confirms final clearance—not provisional credit—before releasing the item or sending any money.
- Keep negotiations in Gumtree messaging until meetup; be wary of rapid off-platform switches paired with overpayment.
- Ignore buyers who will only deal through Western Union, MoneyGram, crypto ATMs, or gift cards.
Named brands that appear in these scripts include Gumtree, Kijiji, OfferUp, Western Union, MoneyGram, Zelle, Cash App, Venmo, Apple / Google Play gift cards, and mobile-deposit flows at major banks and credit unions. Logos on a PDF do not make the instrument good.
If you already refunded an overpayment
- Contact your bank or credit union’s fraud line immediately; ask about recalls and provisional-credit disputes.
- For Western Union / MoneyGram, call their fraud lines the same day—intercepts sometimes work if uncollected.
- Preserve the ad, emails, check images, and wire receipts.
- File ReportFraud.ftc.gov (or the relevant national fraud portal) and consider a police report for large losses.
- Monitor accounts; consider freezes at Equifax, Experian, and TransUnion if you shared ID images.
Checklist
- Exact price only—refuse any overpayment story.
- Local listing → prefer local cash; no mailed checks for small consumer goods.
- Availability ≠ cleared; never refund on provisional funds.
- Skip wires, gift cards, and Friends & Family P2P for Gumtree strangers.
- Document everything; report clear scams even when you walked away.
- Teach household members the same overpayment rule for Marketplace and Craigslist.
VarageSale overpayment cousins: Fake VarageSale overpayment scams. eBay buyer overpayment cousins: Fake eBay buyer overpayment scams.
Kijiji overpayment cousins: Fake Kijiji overpayment scams.
Educational only. Not legal, banking, or fraud-recovery advice. Marketplace brands, app policies, and bank clearance windows vary; verify payment safety pages on Gumtree and with your own bank.