A cashier's check does not have a uniform expiration date and its validity period varies depending on the issuing bank and local policies. Generally, cashier's checks are considered valid for about 60 to 180 days, with many banks printing a "void after X days" disclaimer on the check, often between 60 and 180 days

. However, some cashier's checks have no explicit expiration date and can theoretically remain valid as long as the issuing bank is operational

. After the typical validity period (60 to 90 days or up to 180 days), a cashier's check may be considered stale or expired by some banks, which might refuse to cash or deposit it without additional verification or reissuance. If a cashier's check is held too long without being cashed, the funds may eventually be transferred to the state as unclaimed property, a process known as escheating

. If you have an old cashier's check, it is advisable to check with the issuing bank to confirm if the check is still valid and whether the bank will honor it. Even if a bank refuses to accept an older cashier's check, the issuing bank can usually reissue a replacement check upon request

. In summary:

• Cashier's checks typically are valid for 60 to 180 days.
• Some have no expiration date and may be valid for years.
• After expiration, banks may refuse to honor them, but the issuing bank can often reissue.
• Funds may be escheated to the state if unclaimed for a long time.

Always verify with the issuing bank and your bank to understand their specific policies.