How long you need to keep tax returns depends on the IRS statute of limitations and whether you might face an audit

The IRS generally has three years from the date you file to audit your return. That means you should keep your tax return and the documents that support it — W-2s, 1099s, receipts, bank statements, donation records — for at least three years after filing. If you filed late, the three-year clock starts from when you actually filed, not from the tax year deadline.

Some situations require you to keep records longer. If you underreported income by more than 25 percent, the IRS can go back six years. If you file a fraudulent return or don't file at all, there is no time limit — the IRS can audit you indefinitely. If you claim a loss from a worthless security or a bad debt deduction, keep those records for seven years.

State tax agencies often have their own rules, which may be longer or shorter than the federal limit. Check your state's tax authority website for the specific requirement in your state.

Key Takeaways

  • Keep your tax return and all supporting documents for at least three years after you file, because the IRS can audit returns within that window.
  • If you underreported income by 25 percent or more, keep records for six years instead of three.
  • Worthless security losses and bad debt deductions require you to keep documentation for seven years.
  • State tax agencies may have different retention periods than the federal IRS, so verify the rule in your state.
  • If you file a fraudulent return or don't file at all, there is no time limit on how long the IRS can pursue an audit.

What documents count as supporting records

Supporting documents are the receipts, statements, and proof that back up what you claimed on your return. For income, that means W-2s from employers, 1099s from contractors or investment accounts, and bank statements showing deposits. For deductions, it means receipts, invoices, cancelled checks, credit card statements, mileage logs, and charity donation letters.

You do not have to mail these documents to the IRS when you file. You keep them at home or in your files. If the IRS audits you, they will ask for specific documents to verify the numbers on your return. If you cannot produce them, the IRS can disallow the deduction or income claim.

Digital copies count. A photo of a receipt, a PDF download from your bank, or a scanned document is acceptable to the IRS as long as it is legible and shows the same information as the original.

The three-year rule and when it starts

The standard audit window is three years from the date you file your return. If you file on April 15, the three-year period runs from April 15. If you file in February or in October, it runs from that date. The tax year itself does not matter — only when you actually filed.

If you file an extension and submit your return in October instead of April, your three-year window starts in October. This is why filing early does not shorten the time you need to keep records — the clock starts when the IRS receives your return, not when the tax year ends.

After three years, the IRS can still contact you about that return, but they must have a specific reason — usually evidence of fraud or a substantial underreporting of income. In most cases, if you have kept records for three years and heard nothing, you are clear.

Situations that extend the retention period

If you reported less than 75 percent of your actual income on your return, the IRS can audit you within six years instead of three. This is called a substantial underreporting. The threshold is 25 percent of the income you should have reported. Keep all income documentation for six years in this case.

Bad debt deductions and worthless security losses have a seven-year retention requirement. A bad debt is money you loaned to someone who did not repay it; a worthless security is a stock or bond that became valueless. If you claim either, document the original transaction, the loan agreement or purchase, and the evidence that it became uncollectible or worthless.

If you claim a home office deduction, keep records related to that deduction for six years. If you own rental property, keep all records related to that property — mortgage statements, repair receipts, tenant agreements, depreciation schedules — for six years after you sell the property.

What happens if you do not have the documents

If the IRS audits you and you cannot produce supporting documents, you have options. You can reconstruct records using bank statements, credit card statements, or other third-party documentation. The IRS will accept reasonable reconstructions if you show good faith effort.

You can also provide a written explanation of why the documents are no longer available — a fire, a flood, a move, a business closure. The IRS may allow you to claim the deduction anyway if your explanation is credible and you have some corroborating evidence, such as a bank deposit that matches the amount you claimed.

If you cannot reconstruct or explain the missing documents, the IRS will disallow the deduction or income claim. This means you may owe additional tax, plus interest and penalties. The penalty for negligence is usually 20 percent of the underpayment.

State tax record retention rules

Most states follow the federal three-year rule, but some are longer. California, for example, requires you to keep records for four years. New York requires four years for most returns but six years if you underreported income by 25 percent or more, matching the federal rule.

A few states have shorter windows. Some allow you to discard records after two years if you have not heard from the state tax agency. Check your state's Department of Revenue or Tax Commission website for the specific rule.

If you file in multiple states — because you lived in more than one state during the year or worked remotely for a company in another state — keep records according to the longest requirement among the states where you filed. This is simpler than tracking different retention dates for each state.

How to organize and store tax records

Create a folder for each tax year and label it clearly with the year. Inside, keep your filed return, a copy of the confirmation that the IRS received it, and all supporting documents organized by category: income, deductions, charitable contributions, medical expenses, business expenses. This makes it easy to find what you need if you are audited.

Store originals in a safe, dry place — a filing cabinet, a safe deposit box, or a fireproof safe at home. Keep digital copies as a backup. Scan important documents like W-2s, 1099s, and charity letters and save them to a cloud storage service or an external hard drive.

After the retention period has passed, you can shred or delete the documents. Shred paper documents to protect your privacy. For digital files, delete them from your computer and empty the trash. You do not need to keep records indefinitely unless you are self-employed or own a business, in which case some records may need to be retained longer for business purposes.

Frequently Asked Questions

Do I have to keep the original receipts, or are photos okay?

Photos and digital scans are acceptable to the IRS as long as they are clear and show all the information on the original receipt. You do not need to keep paper originals, though many people do for their own records. Make sure the image is legible and shows the date, amount, and what was purchased.

What if I lost my tax return but still have all the supporting documents?

You can request a copy of your filed return from the IRS using Form 4506-C. The IRS charges a small fee and takes about 5 to 10 business days to send it. You can also download a transcript of your return from the IRS website using your login credentials. Keep the supporting documents you have — they are what matter most in an audit.

How long do I need to keep records if I am self-employed?

Follow the same federal rules: three years for most records, six years if you underreported income by 25 percent or more. However, many accountants recommend keeping business records for seven years because business deductions can be tied to depreciation schedules and asset sales that extend beyond three years. Check with a tax professional about your specific situation.

Can I throw away records after the IRS does not audit me for three years?

Generally yes, but wait until you are certain the three-year window has closed. If you filed on April 15, 2021, you can discard those records after April 15, 2024. The IRS rarely contacts you on the exact deadline, so waiting an extra month or two is safer. If you are unsure whether you have been audited, check your IRS account online or call the IRS to confirm.

Do I need to keep records for returns I filed but did not owe taxes?

Yes. Even if you owed zero tax or received a refund, keep your return and supporting documents for three years. The IRS can still audit to verify that your income and deductions were reported correctly, and you may have claimed deductions that the IRS wants to examine.