Cashier’s Check Fraud: How It Works & How to Spot a Fake

credit union teller handing a cashiers check to member

Cashier’s Check Fraud: How It Works & How to Spot a Fake

A cashier’s check is a paper check printed and signed by a bank or credit union. People often trust it more than a personal check because it’s backed by the bank. Scammers take advantage of that trust by giving you a cashier’s check that looks real but is actually counterfeit (fake) or altered.

How cashier’s check fraud usually works

You receive a cashier’s check. The check may look official and may even show a real bank’s name.
You deposit the check. Your bank may make some or all of the money available quickly.
The scammer pressures you to act fast before the check is fully verified—such as shipping an item, handing over a car title, or sending part of the money back.
Days or weeks later, the check is found to be fake or altered. The deposit is reversed, and you may be responsible for the money you already spent or sent.

Common cashier’s check scams

Overpayment scam:

A buyer “accidentally” sends too much and asks you to refund the extra (often by wire transfer, gift cards, or payment apps).

Online sale scam (car, furniture, electronics):

Someone pays with a cashier’s check and urges you to release the item quickly.

Job / mystery shopper scam:

You’re sent a cashier’s check as “startup money” and told to buy gift cards or send money to someone else.

Rental scam:

A “tenant” or “landlord” uses a cashier’s check and creates urgency to get keys, access codes, or deposits handled immediately.

Prize / unexpected windfall:

You’re told you won money and must pay fees or taxes—often using part of a cashier’s check you’re sent.

Red flags (warning signs)

Red flags in the situation

They want you to send money back. Any request to “refund” part of a payment is a top warning sign.
They push urgency: “Do it today,” “someone else is coming,” “I need it shipped now.”
They insist on hard-to-trace payments for the refund (wire transfer, gift cards, crypto, or person-to-person transfers to a stranger).
The story doesn’t make sense: complicated excuses, third parties, or instructions that don’t match a normal purchase or job.
They avoid meeting in person for high-value items or refuse safer payment methods.

Red flags on the check itself

Typos or odd formatting: misspelled bank name, uneven printing, blurry logo, or messy layout.
Amounts don’t match: the written amount and the numeric amount are different.
Wrong or suspicious bank details: the address doesn’t match the real bank, or the check lists a phone number you can’t confirm independently.
Looks altered: smudges, discoloration, scratch marks, or areas that look erased and rewritten (possible “check washing”).
Too perfect doesn’t mean real: many counterfeit checks look convincing—even to bank staff—so verification matters.

How to verify a cashier’s check (safer steps)

Slow down. Don’t ship items, hand over keys/title, or provide services until the check is verified.
Find the bank’s phone number yourself. Look it up from the bank’s official website or a trusted source—don’t rely on the number printed on the check.
Call the issuing bank and ask to verify the check. Be ready to share the check number, amount, and the name of the person/company who bought it. Ask if it’s real and if it has been reported lost or stolen.
Ask your bank when the check is fully cleared. “Funds available” is not the same as “the check is good.”
Never send a refund from a check deposit. If it’s legitimate, the sender can cancel and reissue the payment correctly.

What to do if you think the check is fake (or you already deposited it)

Contact your bank right away. Tell them you may have deposited a counterfeit cashier’s check and ask what steps to take.
Stop the transaction. If you haven’t shipped anything or sent money back, don’t.
Save everything. Keep the check, envelope, messages, emails, receipts, and any names/phone numbers used.
Report it. You can report fake check scams to federal agencies (for example, consumer fraud reporting and mail-related fraud reporting) and to local law enforcement.

Quick safety rules (easy to remember)

Do

Verify the cashier’s check with the issuing bank using a phone number you look up yourself.
Wait until your bank confirms the check has fully cleared before you treat it like cash.
Be extra cautious with large online transactions and people you haven’t met.