Tax Day has come and gone, but the IRS says more than $1 billion in unclaimed refunds are still available to taxpayers who havenโt filed their 2021 return.
Millions of Americans may be owed money and still have time to collect itโbut they must act fast. The deadline to file and claim these refunds is May 17, 2025.

Who Qualifies for an Unclaimed Refund?
Anyone who didnโt file a federal tax return for 2021 could qualify. Many of these unfiled returns belong to low- or moderate-income earners who were not required to fileโbut could still be owed money from:
- Federal tax withholdings
- Earned Income Tax Credit (EITC)
- Child Tax Credit (CTC)
The IRS estimates that the median refund for 2021 is $932โmeaning half of the unclaimed checks are worth more than that.
How to Claim Your Refund Before the Deadline
To receive your 2021 refund, you must submit a 2021 Form 1040 to the IRS by May 17, 2025. You can download the form at IRS.gov or work with a tax professional to file retroactively.
If you don’t file in time, federal law will block the IRS from issuing your refund. After May 17, the unclaimed money becomes property of the U.S. Treasury.
Avoid These Common Mistakes
When filing late, double-check these things to avoid delays:
- Use the correct form for tax year 2021
- Include W-2s, 1099s, or other income forms
- Make sure your mailing address and bank info are current
If youโre claiming credits like the EITC, include proper documentation to support your eligibility.
Donโt Miss Out on Your Money
The IRS doesnโt charge penalties for filing a refund-only return late, so thereโs no downside if youโre owed money.
Tip: If youโre missing documents, you can request past wage or income transcripts from the IRS using Form 4506-T or by logging into your IRS account.
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