Scam types

Fake-check and overpayment scams: money appears before the loss is discovered

Why a deposited check can appear available before being found fraudulent, and how scammers exploit that delay in jobs, prizes and marketplace transactions.

Quick answer

Funds showing as available do not necessarily prove a check is valid. Never send part of a check onward, buy gift cards, refund an “overpayment” or pay a third party for someone you do not know.

Illustration of a person spotting warning signs in a fake-check or payment-related scam.

“Available” is not the same as verified

A fake or fraudulent check can look authentic, and banking systems may make funds available before the check is finally determined to be bad. The scammer exploits that delay.

The victim sees money in the account and is told to send some of it somewhere else. Later, the original deposit is reversed and the victim is responsible for the money that was sent onward.

Common stories

  • a new employer sends money for equipment and tells you to pay a supplier;
  • a buyer overpays for an item and asks for the difference back;
  • a mystery-shopping job asks you to test gift cards or money transfers;
  • a prize includes a check but requires you to pay taxes or fees;
  • a personal-assistant job asks you to buy gift cards for the “boss.”

The rule that cuts through the story

Do not act as a payment intermediary for someone you do not independently know and trust. A legitimate payer should resolve its own overpayment or supplier obligation through normal financial channels.

If you are uncertain about a check, speak to your bank and explain the full situation rather than asking only whether the funds appear available.

Sources and references

These sources support the factual guidance and analysis on this page. For reporting, legal, financial or provider-specific procedures, follow the linked organization’s current instructions.

  1. How To Spot, Avoid, and Report Fake Check ScamsU.S. Federal Trade Commission
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