If you do not cash a refund check, it will generally become "stale" or expire, usually after one year for U.S. Treasury checks. The funds are not lost, but you will need to request a replacement, often after receiving a notice from the Unclaimed Property Division or by filing IRS Form 3911.
If the check wasn't cashed, you'll receive a refund by other means once the original check is canceled.
In addition, checks may remain uncashed due to being lost or destroyed. California Revenue and Taxation Code sections 5097 and 5102 provide that property tax refunds which remain unclaimed for four (4) years may be transferred (escheatment) to the county general fund on order of the board of supervisors.
By law, U.S. Treasury checks are good for one year after the date on the check. This means that federal tax refund checks are good for one year as those are issued by the U.S. Treasury.
After those six months — or longer, depending on the specific bank's policy — the check is considered stale, making it no longer valid. Banks are still allowed to process a stale check as long as the institution deems the funds are good. There is no federal law that requires a bank to cash a check.
The "$10,000 bank rule" refers to federal laws requiring financial institutions and businesses to report large cash transactions (deposits, withdrawals, payments) of over $10,000 in currency to the government to combat money laundering and financial crimes. Banks file Currency Transaction Reports (CTRs) for cash activity over $10,000, while businesses file Form 8300 for similar payments, both sending info to FinCEN and the IRS to track illicit funds.
Banks will not accept the expired check for cashing or deposit. Although the U.S. Treasury issues the checks, you must apply to the authorizing agency to reissue the expired check The IRS authorizes the Treasury to send a replacement check.
After the 6-month window has closed, a bank may choose to refuse a check. If this happens, you may need to have the check reissued. Some banks may cash the stale check for a fee or under certain conditions. The bank that issued the check may also have its own policies for dealing with stale checks.
I lost my refund check. How do I get a new one? If you lost your refund check, you should initiate a refund trace: Use Where's My Refund, call us at 800-829-1954 and use the automated system, or speak with a representative by calling 800-829-1040 (see telephone assistance for hours of operation).
The IRS is required to keep the filing open and hold on to unclaimed income tax refunds for three years. If you don't file for the tax refund after three years, the money becomes property of the US Treasury, and you won't be able to get it back.
The biggest tax mistakes people make include filing late, math errors, incorrect personal info (like Social Security numbers), forgetting deductions/credits (like EITC), misreporting income, not signing forms, and making errors with bank details for direct deposit, all leading to delays, penalties, or missed savings, with using tax software or professionals helping avoid these common pitfalls.
The answer is simple: the IRS does not track your check cashing locations in real time. Instead, it verifies income through employer-reported forms like W-2s or 1099s. Whether you deposit, withdraw, or cash a paycheck, your income remains taxable and reportable under federal law.
You are allowed to spend your refund check in whatever manner that you want to; just keep in mind the options that will keep you in a comfortable place. Sometimes, people can be so thrilled about having money that they do anything with it and for it.
Reporting cash payments
A person must file Form 8300 if they receive cash of more than $10,000 from the same payer or agent: In one lump sum. In two or more related payments within 24 hours. For example, a 24-hour period is 11 a.m. Tuesday to 11 a.m. Wednesday.
The "20k rule" refers to the traditional IRS threshold for reporting income from payment apps and online marketplaces on Form 1099-K: over $20,000 in gross payments AND more than 200 transactions in a calendar year. While a law (the American Rescue Plan) temporarily lowered the threshold to $600, recent legislation, the One Big Beautiful Bill Act (OBBBA) (OBBBA), has reinstated the $20,000/200-transaction rule for tax years starting in 2025, providing relief for casual sellers and gig workers.
However, the IRS is unfortunately not bound by this law. This means that they can choose how much to garnish from your wages each month, depending on how much you owe and how much you earn. The limit is typically between 25-50% of your disposable earnings after deductions are made.
The bottom line
By proactively adjusting your withholding, accounting for extra income, and planning for life changes, you can take control of your tax situation. This way, you can keep more of your money in your hands throughout the year rather than giving the IRS an interest-free loan.
The GST law requires that every claim for refund is to be filed within 2 years from the relevant date.
In response to Executive Order 14247, “Modernizing Payments to and From America's Bank Account,” the IRS is making a swift transition away from sending or receiving paper checks. For the most part, the IRS will stop issuing tax refunds in the form of paper checks after September 30, 2025.