Checkbooks don’t expire in the way a passport or a carton of milk does. The blank slips have no shelf life of their own, and a book printed a decade ago looks and functions the same as one printed last week. What can expire is the check once you fill it out, and what can quietly kill the whole book is a change to the account behind it. Under the Uniform Commercial Code, a bank has no obligation to pay a personal check presented more than six months after its written date.1Cornell Law School. Uniform Commercial Code 4-404 – Bank Not Obliged to Pay Check More Than Six Months Old Account closures, bank mergers, and outdated routing numbers can end a checkbook’s usefulness sooner.
The Six-Month Stale-Date Rule
The clock starts on the date you write on the check. Six months later, the check is considered stale-dated, and the bank can refuse to pay it.1Cornell Law School. Uniform Commercial Code 4-404 – Bank Not Obliged to Pay Check More Than Six Months Old
Six months is a permission line, not an automatic cutoff. Banks can still choose to process a stale check, and if they pay one in good faith, they’re allowed to charge the amount to the check writer’s account.1Cornell Law School. Uniform Commercial Code 4-404 – Bank Not Obliged to Pay Check More Than Six Months Old So the writer, not the bank, absorbs the loss when an old check clears unexpectedly.
If the bank refuses instead, the person who tried to deposit the check gets hit with a returned-item fee, and the writer may face one too. Either way, a check aged past six months is a coin flip you shouldn’t have to take.
What “Void After 90 Days” Actually Means
Payroll, insurance, and business checks often carry printed language like “void after 90 days” or “void after 180 days.” That wording comes from the issuer, not the law. The Uniform Commercial Code’s six-month standard still governs what a bank is required to do, regardless of what’s printed on the face of the check.1Cornell Law School. Uniform Commercial Code 4-404 – Bank Not Obliged to Pay Check More Than Six Months Old
Many banks will still honor a check with “void after 90 days” language up to the six-month mark. But the printed warning gives the bank an extra reason to refuse if it wants to. If you’re holding a check past its printed date, contact the issuer for a replacement rather than testing it at the counter.
When an Account Change Kills the Whole Checkbook
A check less than six months old can still be worthless if something has changed about the account it’s drawn on.
Closed Accounts
Close the account and every remaining check tied to it is void immediately. A check written on a closed account comes back marked “account closed,” which generates fees for both sides and can trigger state bad-check laws if it looks intentional.
Bank Mergers and Routing Number Changes
The nine-digit routing transit number at the bottom of every check identifies the specific institution holding the account.2Bureau of the Fiscal Service. Routing Transit Number (RTN) When one bank buys another, the old routing number is usually retired. Acquiring banks typically honor the old number for at least 12 months after the merger, but that grace period ends.
After the transition closes, checks with the old routing number come back as “unable to locate account.” If your bank has been acquired since you last ordered checks, compare the routing number on your old checks against the one on your bank’s website or your latest statement. If they don’t match, the old book is done.
Certified Checks, Cashier’s Checks, and Treasury Checks Follow Different Rules
The six-month rule covers ordinary personal and business checks. Several other instruments have their own clocks.
Certified and Cashier’s Checks
Certified checks are explicitly excluded from the six-month stale-date rule.1Cornell Law School. Uniform Commercial Code 4-404 – Bank Not Obliged to Pay Check More Than Six Months Old Because the bank has already guaranteed the funds, it remains obligated to pay well past six months. The same logic applies to cashier’s checks and teller’s checks, which the bank itself issues.
There is still a long-stop limit. The Uniform Commercial Code sets a three-year statute of limitations for enforcing payment on a certified check, cashier’s check, or teller’s check, measured from the date a demand for payment is made.3Cornell Law School. Uniform Commercial Code 3-118 – Statute of Limitations Funds from unclaimed cashier’s or certified checks are eventually turned over to the state through the unclaimed property process.
U.S. Treasury Checks
Federal government checks, including paper tax refunds and Social Security payments, run on a federal timetable. You have one year from the date of issuance to file a claim on a U.S. Treasury check.4eCFR. 31 CFR 245.3 – Time Limit for Check Claims After that, the check itself is no longer negotiable. The underlying payment obligation doesn’t vanish, though. Contact the federal agency that authorized the payment and ask for a replacement.
You Found an Old Check Made Out to You
Don’t just deposit it. A check older than six months may be refused, and even if it clears, the writer’s bank can reverse the transaction later.
The reliable move is to contact the person or company that wrote the check and ask for a replacement. Most employers, insurers, and businesses will reissue once you explain. For federal checks, go to the issuing agency directly. Treasury checks can be reissued even after the one-year claim window has passed.4eCFR. 31 CFR 245.3 – Time Limit for Check Claims
If the issuer is gone or unreachable, the money may already be sitting with your state as unclaimed property. Most states classify a financial obligation as abandoned after three to five years of no customer-initiated activity.5HelpWithMyBank.gov. What Can You Tell Me About State Unclaimed-Property Programs? Search your state’s unclaimed property database to see if it’s waiting there.
You Found an Old Checkbook of Your Own
Start with the account. Call your bank or log in and confirm the account number on the checks belongs to an active account. Then compare the routing number on the checks with the routing number shown on your bank’s site or your most recent statement. A mismatch usually means a merger has happened and the old checks are done.
If the account has been dormant for years, the balance may already have gone to the state. Banks are typically required to try to notify the account holder by mail before escheating funds.5HelpWithMyBank.gov. What Can You Tell Me About State Unclaimed-Property Programs? If that notice never reached you, the money isn’t lost. States hold escheated funds indefinitely, and former owners or heirs can claim them at any time.6U.S. Securities and Exchange Commission. Escheatment by Financial Institutions
If the account is closed or the routing number is outdated, the old checks are worthless and should be shredded. Each slip carries your account number, routing number, name, and often your address, which is enough for identity theft. Use a cross-cut shredder.
If You Might Have Written Checks From That Book
If some checks left the book at some point and you’re not sure whether they were ever cashed, a stop payment order tells your bank not to honor them. Under the Uniform Commercial Code, a stop payment order lasts six months and can be renewed for additional six-month periods as long as each renewal is filed before the previous one expires.7Cornell Law School. Uniform Commercial Code 4-403 – Customer’s Right to Stop Payment
One trap: if you place the order verbally and don’t confirm it in writing within 14 days, it automatically lapses.7Cornell Law School. Uniform Commercial Code 4-403 – Customer’s Right to Stop Payment Always follow a phone request with a written or in-app confirmation.
Even Valid Old Checks Are a Bad Bet
If the account is active and the routing number still matches, your old checks are technically usable. That doesn’t make them reliable.
Older checks often lack modern anti-fraud features: chemical-sensitive paper that reveals tampering, microprinting too small to photocopy, security watermarks visible against light, color-shifting ink. A teller or automated system that sees an unfamiliar design may flag the check for manual review, place a longer hold, or reject it as a fraud precaution.
The magnetic ink characters at the bottom of the check, the MICR line, are what machines read to route payments. That ink can fade over years, and modern fraud detection compares the MICR encoding against the bank’s routing records. Old, worn, or inconsistent characters get flagged.
If you plan to use an old checkbook, run a small test first by depositing one into another account you control, so you know it processes cleanly before you rely on the book for anything that matters. Ordering a fresh book with current security features is the safer default.