To verify a cashier’s check, inspect the paper for genuine security features, gather the check’s identifying details, and then call the issuing bank at a number you look up yourself — never the one printed on the check — to confirm that the exact check number, dollar amount, date, and payee match what the bank actually issued. That last step is the one that matters. A well-made counterfeit can pass a visual inspection and even fool a teller at your own bank, but it cannot survive a call to the real issuing institution.
The stakes are high because a cashier’s check is supposed to be as good as cash. The bank itself guarantees the funds, which is why these checks are standard for car sales, real estate closings, and other large transfers. That reputation is also what makes them a favorite tool for counterfeiters, and the losses are painful to unwind once a fake deposit gets reversed.
Inspect the Paper and Printing First
Start by handling the check. Genuine cashier’s checks are printed on heavy, textured stock that feels noticeably different from ordinary printer paper. Hold it up to the light and look for a watermark embedded in the paper fibers. Real watermarks are part of the manufacturing process and are extremely difficult to replicate with a desktop printer or copier. A watermark that sits on the surface of the paper rather than inside it is a bad sign.
Now pull out a magnifying glass and look at the signature line and the border. Legitimate checks use microprinting there — text so small it looks like a solid line to the naked eye. Under magnification, you should be able to read words like the bank’s name or “Authorized Signature.” On photocopied counterfeits, that fine text turns into a blurry smudge.
Many banks also weave a thin security thread into the paper that glows under ultraviolet light, and some use color-shifting ink that changes hue when you tilt the check. These are industry best practices rather than legal requirements. The Uniform Commercial Code defines a cashier’s check as a draft where the bank is both the entity writing and paying the check, but it doesn’t mandate specific anti-fraud features on the paper.1Cornell Law Institute. Uniform Commercial Code 3-104 – Negotiable Instrument The security features you see are voluntary standards banks adopted to stay ahead of counterfeiters, so their exact mix varies from bank to bank.
Watch for Signs of Tampering
A genuine cashier’s check can still be altered after it was issued. Criminals use chemicals or abrasives to erase the original payee name or dollar amount and write in their own. Watch for these signs:
- Paper fiber disturbance. Roughened or thinned patches where ink was chemically removed. Run your finger across the payee line and the dollar fields; the paper should feel uniform.
- Discoloration or staining. Faint yellow or brownish patches around the payee name or amount can indicate chemical treatment.
- Smeared or inconsistent ink. If the printed amount looks slightly different in color or texture from the rest of the printing, someone may have overwritten the original.
- Mismatched amounts. The written-out dollar amount and the numeric amount must match exactly. Any discrepancy is a red flag.
- Security features that look “almost right.” A watermark that sits on the paper’s surface or microprinting that stays blurry under a lens suggests the whole check is counterfeit.
Gather the Details Before You Call
Before you pick up the phone, collect every data point on the face of the check. You will need the bank’s name and branch location (usually at the top), the check number (typically in the upper right), the date of issuance, the exact dollar amount in both numeric and written form, and the payee’s name.
At the bottom of the check, printed in a specialized magnetic ink font, is a nine-digit routing number that identifies the issuing bank. Have that ready as well.
Check the date. The Uniform Commercial Code doesn’t set a hard expiration for cashier’s checks, but as a general rule a bank can refuse to pay any check presented more than six months after its date.2Cornell Law Institute. Uniform Commercial Code 4-404 – Bank Not Obliged to Pay Check More Than Six Months Old Many banks also print their own expiration on the check, often 90 days to one year. If the check is anywhere near stale, raise it during your verification call.
Call the Issuing Bank the Right Way
This is the step that actually verifies the check. Everything before it is triage.
Look Up the Phone Number Independently
Never call the phone number printed on the check itself. Counterfeiters routinely print fake customer service numbers that connect to accomplices who will cheerfully “confirm” that the check is legitimate. Look up the bank’s number on its official website, through a search engine, or through directory assistance.
If you aren’t sure the bank even exists, the FDIC’s BankFind tool lets you search any FDIC-insured institution by name to confirm it’s real.3FDIC. Enhanced FDIC Tool Helps Consumers Identify Unfamiliar Banks and Websites A check drawn on a bank that doesn’t show up in BankFind is almost certainly fraudulent.
Ask Them to Verify the Specific Check
When you reach the bank, ask to verify a specific cashier’s check. Give the representative the check number, dollar amount, payee name, and date. They will compare those details against their records and tell you whether the instrument is legitimate and outstanding. If the teller seems unsure how to handle the request, ask to be transferred to the fraud department; many banks have staff dedicated to these calls.
Verify in Person for Large Transactions
Walking into a branch of the issuing bank gives you the most definitive answer. A teller can scan the check, verify the magnetic ink encoding at the bottom against the bank’s system, and confirm the instrument on the spot. For a car sale or a real estate closing, that trip is worth it. If the issuing bank has no branch nearby, your own bank can sometimes initiate a direct verification with the issuing institution.
Endorse It Restrictively Once You’re Satisfied
After you’ve confirmed the check is real, endorse the back by writing “for deposit only” above your signature before you take it to your bank. That restrictive endorsement means the check can only go into your account, and it stops anyone else from cashing it if it’s lost or stolen on the way.4Consumer Financial Protection Bureau. What Does It Mean for a Check to Be Indorsed “For Deposit Only”?
“Available” Funds Are Not “Cleared” Funds
This is where most cashier’s check fraud victims get burned, and it’s the single most important thing to understand before you release anything of value.
Your bank makes deposited funds available on a schedule set by federal regulation. That schedule has nothing to do with whether the check is genuine. Under Regulation CC, a cashier’s check deposited in person by the payee into their own account qualifies for next-business-day availability.5eCFR. 12 CFR Part 229 Subpart B – Availability of Funds and Disclosure of Funds Availability Policies If it isn’t deposited in person, the funds must be available by the second business day. Your bank releases the money because the law requires it, not because anyone confirmed the check is real.
Banks can place extended holds on large deposits. As of July 2025, when the total amount of checks you deposit in a single day exceeds $6,725, the bank can hold the excess for an additional five to six business days beyond the standard schedule.6eCFR. 12 CFR Part 229 – Availability of Funds and Collection of Checks (Regulation CC) Even after that hold lifts, the check may not have finished settling between the two banks.
Mobile deposits often take longer. The Consumer Financial Protection Bureau notes that banks can set their own availability schedules for mobile-deposited checks, and those schedules are frequently slower than for in-person deposits.7Consumer Financial Protection Bureau. How Long Can a Bank or Credit Union Hold Funds I Deposited? Check your bank’s mobile deposit policy before assuming next-day access.
When a counterfeit cashier’s check is eventually identified, the bank reverses the deposit and takes the money back from your account. The Office of the Comptroller of the Currency has confirmed that banks have this right under both the Uniform Commercial Code and their deposit agreements, whether or not you’ve already spent the funds.8OCC. Fraudulent Cashier’s Checks – Guidance to National Banks If the reversal overdraws your account, you owe the bank the difference. So the rule is simple: don’t wire money, ship goods, or hand over a title until your bank confirms the check has actually cleared through interbank settlement — not just that the funds appear available.
Recognize the Scams That Use Cashier’s Checks
Two patterns account for most of the fraud.
In the overpayment scam, a buyer for something you’re selling online sends a cashier’s check for more than the asking price. They ask you to deposit the check and wire back the difference for some plausible-sounding reason. The check looks real, the funds go available, and you send the “extra” money. Days or weeks later the check bounces, the deposit reverses, and you’re out both the merchandise and the cash you wired.9Federal Trade Commission. FTC Warns Consumers About Check Overpayment Scams Any buyer who overpays and asks you to send back the excess is running this scam. No exceptions.
In the lottery or prize scam, you receive a letter or email announcing you’ve won a sweepstakes you never entered. Enclosed is a cashier’s check for a few thousand dollars, with instructions to deposit it and wire back a portion to cover “taxes” or “processing fees” before your larger prize is released. The check is fake, the prize doesn’t exist, and the wired money is gone.10Federal Trade Commission. Court Halts Bogus Check Scam Targeting Lottery Winners
Warning signs cut across both formats: the amount is more than expected, the sender pressures you to move fast, the postmark doesn’t match the bank’s location, or the person paying you is a stranger. When any of these show up, run the BankFind check on the issuing institution before you do anything else.11FDIC. Beware of Fake Checks
If the Check Turns Out to Be Fake
If verification reveals the check is counterfeit, or your bank later returns a deposited check as fraudulent, act quickly:
- Do not return the check to the sender. Keep it as evidence. If you haven’t deposited it, don’t.
- Notify your bank right away so they can flag the transaction and limit further damage to your account.
- Report the fraud at ReportFraud.ftc.gov. The FTC shares reports with law enforcement agencies nationwide.12Federal Trade Commission. ReportFraud.ftc.gov – FAQ
- File a complaint with the FBI’s Internet Crime Complaint Center at ic3.gov if the check arrived through an online transaction or email.13FBI. Internet Crime Complaint Center (IC3)
- Contact the U.S. Postal Inspection Service at 877-876-2455 if the check came by mail. Mail fraud is a separate federal offense.
Expect a returned-item fee from your bank, typically $10 to $30, even though you’re the victim. If the reversal overdraws your account, overdraft fees may follow. These charges are standard across the industry, which is why verifying before you rely on the funds is the entire point.