Where Do You Sign a Check? Front, Back, and Endorsements

Where you sign a check depends on which side of the transaction you’re on. If you’re writing the check, sign the line in the bottom-right corner on the front. If you’re depositing or cashing a check made out to you, sign the back at the left end, inside the small area marked “Endorse Here.” Each signature does a different job, and putting yours in the wrong place can void the check or hold up your deposit.

Signing the Front When You Write a Check

Your signature on the front, bottom-right line, is what authorizes your bank to release the funds. Without it, the check isn’t a valid instrument. Under the Uniform Commercial Code, no one is liable on a check unless they’ve signed it or had an authorized agent sign for them.¹ Your bank can only charge your account for a check that is “properly payable,” meaning you authorized it and it fits your account agreement.²

Sign the way your bank has you on file. If the signature doesn’t match, the check may be flagged or rejected. The UCC is flexible about the form itself: a signature can be handwritten, stamped, or made by machine, and it can be any name, mark, or symbol you adopt with the intent to authenticate the document.¹ What matters is the intent and the match.

Joint Accounts

On a joint checking account, whether one signature is enough or both are needed depends on how the account was opened. Most joint accounts let either holder sign a check alone, but some are set up to require both signatures. The account agreement controls, and co-owners generally must have equal withdrawal rights for the account to work as a true joint account.³ If you’re unsure, ask your bank before writing a check that could bounce back for a missing second signature.

Signing the Back When You Deposit or Cash a Check

When a check is made out to you, you endorse it by signing the back before depositing or cashing it. The endorsement area sits at the left end of the back, which is called the trailing edge (defined as the left side when you’re looking at the front of the check).⁴ Most checks show a few printed lines or a box labeled “Endorse Here” in that spot. Under the UCC, an endorsement is a signature on the check, other than the writer’s, made to transfer the check, restrict its payment, or accept liability on it.⁵

Keep your endorsement within the first 1.5 inches from the trailing edge. Federal banking rules reserve the rest of the back for bank processing stamps and routing information.⁶ Writing outside that zone can cause scanning errors when the check is processed.

Sign your name exactly as it appears on the “Pay to the Order of” line. If your name is misspelled on the front, sign first using the misspelled version, then sign again with your correct legal name below it. Writing your account number under your signature adds a small layer of protection if the check gets lost during processing.

Choosing How to Endorse: Three Options

How you sign the back controls what can happen to the check afterward. There are three standard endorsement types, and the difference is real: one leaves the check open to anyone holding it, and the others lock it down.

Blank Endorsement

A blank endorsement is just your signature. It’s the most common approach and the least secure. Once you sign in blank, the check becomes payable to whoever holds it and can be transferred by handing it over.⁷ If a signed check is lost or stolen, whoever finds it could potentially cash it. Wait until you’re at the bank or ready to submit the deposit before you sign.

Restrictive Endorsement

A restrictive endorsement limits what can be done with the check. The most common version is “For Deposit Only” written above your signature, which tells the bank the check can only go into your account. You can tighten it further by adding your account number and the bank’s name, such as “For Deposit Only to Account #12345 at First National Bank.” The UCC recognizes endorsements using the words “for deposit” or “for collection” as creating specific obligations on the bank handling the check.⁸

Special Endorsement

A special endorsement names the person you’re passing the check to. Write “Pay to the Order of [name]” and sign below it. After that, only the named person can negotiate the check, and they’ll need to add their own endorsement before depositing or cashing it.⁷ This is how you sign a check over to a third party. Many banks are cautious about accepting third-party checks, so the person receiving it should confirm with their bank before trying to deposit it.

Endorsing for Mobile Deposit

Mobile deposits use the same endorsement location, with one addition. Most banks now require you to write “For Mobile Deposit Only” (and sometimes the bank’s name) below your signature on the back. This restrictive language helps prevent the same check from being deposited a second time somewhere else. Under Regulation CC, a bank that accepts a check with a restrictive endorsement inconsistent with the deposit method (for example, a check marked “For Mobile Deposit at Bank A” being deposited at Bank B) loses certain protections against duplicate-deposit claims.⁹ Check your bank’s app for the exact wording it wants.

Signing for a Business or as an Agent

If you’re signing a check for a business or on someone else’s behalf, the signature has to show you’re acting in a representative capacity. Under the UCC, if the check names the business and your signature clearly shows you’re signing for the business, only the business is liable. If the check doesn’t identify the business, or if your signature doesn’t indicate your role, you could be held personally liable for the amount.¹⁰

The safest format has three parts: the business name, your signature, and your title. A corporate officer would write the company name, sign below it, and add a title like “President” or “Treasurer.” The same pattern applies to partnerships and LLCs. Pre-printed business checks usually carry the company name already, but adding your title next to your signature removes any ambiguity.

A Note on Dates: Old and Post-Dated Checks

Where you sign doesn’t change based on the date, but the date affects whether your signature will do any work. A bank has no obligation to honor a check presented more than six months after the date on it, though it can choose to pay a stale check in good faith.¹¹ And post-dating doesn’t automatically hold a check: the UCC treats a post-dated check as payable on demand, so a bank can process it as soon as it’s presented unless you’ve given the bank advance written notice with the check number, amount, and date.¹²

1
Cornell Law School / Legal Information Institute (LII). Uniform Commercial Code 3-401 – Signature
2
Cornell Law School / Legal Information Institute (LII). Uniform Commercial Code 4-401 – When Bank May Charge Customers Account
3
FDIC.gov. Financial Institution Employees Guide to Deposit Insurance – Joint Accounts
4
GovInfo. 12 CFR Part 229 Appendix D
5
Cornell Law School / Legal Information Institute (LII). Uniform Commercial Code 3-204 – Indorsement
6
Federal Reserve. Final Amendments to Regulation CC
7
Cornell Law School / Legal Information Institute (LII). Uniform Commercial Code 3-205 – Special Indorsement, Blank Indorsement, Anomalous Indorsement
8
Cornell Law School / Legal Information Institute (LII). Uniform Commercial Code 3-206 – Restrictive Indorsement
9
eCFR. 12 CFR Part 229 – Availability of Funds and Collection of Checks (Regulation CC)
10
Cornell Law School / Legal Information Institute (LII). Uniform Commercial Code 3-402 – Signature by Representative
11
Cornell Law School / Legal Information Institute (LII). Uniform Commercial Code 4-404 – Bank Not Obliged to Pay Check More Than Six Months Old
12
Cornell Law School / Legal Information Institute (LII). Uniform Commercial Code 3-113 – Date of Instrument