The IRS says a refund is lost for good if the tax return that claims it is not filed within three years of its due date. For tax year 2023, that clock runs out on April 15, 2027. The window for tax year 2022 already closed in April 2026, with about $1.2 billion in refunds still waiting on people who had not filed, according to the agency’s March 20 release (IR-2026-37).
The 2022 deadline that just passed
The IRS estimated that more than 1.3 million people, 1,322,600 by its count, had not filed a 2022 return and were due a refund. The median refund was $686, meaning half were larger. Texas had about 126,000 of those people, California about 143,200 and Florida about 89,000, according to the same release.
The agency’s warning was plain: after three years, the money becomes property of the U.S. Treasury. The Taxpayer Advocate Service, the IRS’s independent watchdog office, says that once the refund statute date passes, the IRS will not issue the refund and the overpayment is forfeited by law. It also cannot be applied to another tax year.
Anyone who skipped a return for 2023 is heading toward the cutoff the 2022 group just hit. The question for people who worked, had tax withheld or qualified for a refundable credit that year is simple: was a 2023 return ever filed? If not, about five months remain.
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How the three-year rule works
IRS Topic No. 153 says a person must file a return to claim a refund within three years of the return due date. It adds: “You risk losing your refund if you don’t file your return.” The rule covers money from paycheck withholding and estimated payments. It also covers credits such as the Earned Income Tax Credit.
The cutoff is counted from the due date, not from when someone gets around to filing. For tax year 2023, returns were due April 15, 2024, so the refund deadline is April 15, 2027. The IRS’s claim-time page treats withholding and estimated payments as paid on the due date, and treats an early return as filed on the due date. Tax year 2024 returns were due April 15, 2025, which puts that cutoff at April 15, 2028.
The Taxpayer Advocate Service warns that the IRS generally does not notify anyone before the date expires. A person has to track it. Refunds can also be held if other returns are unfiled, and the IRS said unclaimed 2022 refunds could be held back if 2023 or 2024 returns were missing, or used to cover federal or state debts and past-due child support.
Why the IRS is chasing unfiled returns
The refund deadline sits next to an enforcement push. In February 2024 the IRS launched a non-filer compliance effort aimed at high earners. It reported more than 125,000 instances of non-filing since 2017, and more than 25,000 letters to people with income over $1 million. Another 100,000-plus letters went to people with income between $400,000 and $1 million for tax years 2017 through 2021.
The notice, called a CP59, went out at a pace of 20,000 to 40,000 a week at the start. Ignoring it can lead to a notice of deficiency, with 90 days to file or petition Tax Court, then a return the IRS prepares itself, liens, levies and audits. Criminal prosecution is possible. Those figures are the most recent the IRS has published for that effort.
Inside the agency, the manual for revenue officers says enforcement of filing requirements “will normally be pursued for a six year period,” and that nonfilers generally receive one or two notices before a case is opened. A return the IRS builds itself, called a substitute return, can leave out deductions and credits the person was owed, the IRS says.
Filing a prior-year return
Someone who missed a year does not need special permission. The IRS says a return can be filed for any prior year. It should go in the same way and to the same place as an on-time return, or to the address on a notice if one was received. Processing a past-due return takes about six weeks, according to the IRS. Filing late does not require paying in full, and the agency says people who cannot pay can ask for more time or an installment agreement.
Missing paperwork is the usual snag. The IRS says a free wage and income transcript, which lists W-2 and 1099 data reported to the agency, is available through Get Transcript Online at IRS.gov. Form 4506-T orders one by mail, but that can take several weeks. Forms and instructions for earlier years are on the IRS Forms & Instructions page or at 800-829-3676.
The Taxpayer Advocate Service says filing late also protects Social Security earnings records and loan eligibility, and it stops the IRS from filing in a person’s place. It says low-income taxpayers may get help from a Low Income Taxpayer Clinic.
The date to circle
The statute does not wait for a reminder. Anyone not sure a 2023 return went in has until April 15, 2027 to settle it, and anyone who gets a CP81 notice, which the Taxpayer Advocate Service says means the IRS holds payments or credits for a year with no return on file, should follow the steps on it. The free route is the IRS’s own past-due return guidance.
Not sure a 2023 return was ever filed?
A 2023 refund that is not claimed by April 15, 2027 goes to the Treasury, and the IRS generally sends no warning before the date passes. Anyone with unfiled years can also see refunds held, as the IRS said it may do for 2022, until the missing returns are in.
The IRS Refund Recovery Kit explains why a refund stalls, how to read IRS letters, and how to trace a refund that never came. It includes the 3-year refund deadline, a notice decoder and a refund status tracker spreadsheet for keeping each tax year’s dates in one place.
Get the 3-year refund deadline guide and notice decoder for unfiled tax years →
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This article was produced with AI assistance and edited for accuracy against the sources linked above.
Warren Cohen is a finance writer based in Phoenix, Arizona, covering personal finance topics including credit, banking, and beginner investing. He earned his degree in business administration from Arizona State University and began his career working in consumer finance, where he gained direct experience with lending and credit systems. He now writes for personal finance websites and fintech platforms, focusing on clear, practical content that helps readers make informed financial decisions.
