Yes. A cashier’s check must be signed on the front by an authorized representative of the issuing bank to be valid, because the bank is the party promising to pay. The person who bought the check does not need to sign it. The payee — the person named on the “Pay to the Order Of” line — must sign the back before depositing or cashing it.
Why the Bank’s Signature Is What Makes the Check Valid
A cashier’s check is different from a personal check in one fundamental way: the bank itself is both the drawer and the payer. When you request the check, the bank pulls the money from your account (or takes your cash) immediately, so the funds are already set aside before the check leaves the branch.1Chase. Five Common Types of Checks The bank, not you, guarantees payment.2Citi.com. What Is a Cashier’s Check
Under the Uniform Commercial Code, no one is liable on a negotiable instrument unless they or an authorized agent signed it.3Cornell Law School / Legal Information Institute. Uniform Commercial Code 3-401 – Signature Because the obligation belongs to the bank, a bank officer or authorized representative has to sign the front. That signature is the bank’s formal commitment that it has set aside the funds and will honor the check when it is presented.4Cornell Law School / Legal Information Institute. Uniform Commercial Code 3-412 – Obligation of Issuer of Note or Cashier’s Check
The signature does not have to be handwritten. The UCC allows it to be applied manually, by stamp, or by machine, as long as the bank intends the mark to authenticate the document. A printed facsimile signature from a bank officer is just as binding as one written in ink, and most large banks use machine-applied signatures on cashier’s checks produced at teller windows.
Does the Purchaser Need to Sign?
No. The front of a cashier’s check often has a line labeled “Remitter” or “Purchaser” where your name appears. That line exists for reference — so the payee and later handlers can see who paid for the check — but you don’t have to sign it, and a missing purchaser signature does not affect whether the check is valid.
The reason ties back to how the instrument works. Because the bank is the issuer and guarantor, the bank’s signature alone makes the check negotiable. Your role ended when you handed over the money and the bank accepted it. Some banks may ask you to sign a receipt or an internal record acknowledging that you bought the check, but that receipt is separate from the check itself.
How the Payee Signs the Back
The person named on the “Pay to the Order Of” line has to endorse the back of the check before depositing or cashing it. An endorsement is a signature that transfers the right to collect the funds. Two forms are common.
A blank endorsement is just the payee’s signature and nothing else. Once signed this way, the check is payable to anyone who holds it, which is convenient at a teller window but risky if the check is lost in the meantime.5Cornell Law School / Legal Information Institute. Uniform Commercial Code 3-205 – Special Indorsement; Blank Indorsement; Anomalous Indorsement
A restrictive endorsement is more protective. The payee writes “For Deposit Only” and an account number above the signature, which limits the check to being deposited into that one account. For mobile deposits, most banks require this form of endorsement, sometimes with additional wording the app specifies.
Signing the check over to a third party — a special endorsement — is technically possible under the UCC, but many banks will not accept a cashier’s check endorsed to someone other than the original payee. The guaranteed-funds nature of the instrument makes it a common target for fraud, and banks manage that risk by refusing third-party endorsements.
When the Payee’s Name Is Misspelled on the Front
If the bank misspelled the payee’s name when it printed the check, the payee should sign the back twice: first with the misspelled version exactly as it appears on the front, then with the correct spelling directly below.6Cherokee Nation. Uniform Commercial Code Article 3 – Section 3-204 Indorsement The depositing bank may require both signatures before accepting the check. Skip this step and a teller can refuse the transaction, or a mobile deposit can be reversed after the fact.
What Happens If a Required Signature Is Missing
A cashier’s check without the bank’s authorizing signature is not a valid negotiable instrument. Under UCC 3-401, no party is liable on the instrument without a signature, so a check that never received the bank’s mark cannot be enforced against the bank.3Cornell Law School / Legal Information Institute. Uniform Commercial Code 3-401 – Signature If you receive a cashier’s check with no bank signature on the front, treat it as suspect and take it back to the issuing branch.
A missing payee endorsement is a different problem. The check is still valid, but the depositing bank will refuse to process it until the payee signs. If you’re depositing through an ATM or a mobile app, an unendorsed check will typically be rejected or reversed a few days later.
Verifying That the Bank Signature Is Genuine
A signed cashier’s check is only as trustworthy as the bank behind it, and counterfeit cashier’s checks are common in scams. The check can look authentic, complete with watermarks and color-shifting ink, and still be fake. If you’re accepting one from someone you don’t know well, call the issuing bank to confirm the check was actually issued. Look up the bank’s phone number on its official website rather than using any number printed on the check, since a scammer can print any number and have an accomplice answer to “confirm” it.7FDIC. Beware of Fake Checks Give the bank the check number, date, and amount so it can verify the record on its end.
Federal bank regulators have warned that fraudulent cashier’s checks often clear the initial deposit stage before the fraud is caught, and when the check is returned as counterfeit the bank charges the amount back to the depositor’s account.8OCC. Fraudulent Cashier’s Checks – Guidance to National Banks Concerning Schemes Involving Fraudulent Cashier’s Checks Verifying the check before you deposit it — and before you spend the funds — is the point at which the bank’s signature can actually be tested.