Keep tax returns and supporting documents for at least three years from the date you filed

The IRS standard rule is three years. That is how long the agency has to audit your return and assess additional tax. If you file on April 15 for the prior year, the three-year window starts from that filing date, not from January 1 of the year you earned the income.

However, three years is a floor, not a ceiling. You may need to keep records longer depending on your situation — and the cost of storage is low enough that many people keep everything indefinitely. The specific timeline depends on what you claimed, whether you reported all your income, and whether you might face an audit.

Key Takeaways

  • The IRS can audit returns for three years after you file, so keep your tax return and all supporting documents for at least that long.
  • If you underreported income by 25 percent or more, the IRS has six years to audit you, so keep records for six years in that case.
  • If you claimed a loss carryforward (such as a business loss or capital loss you carried to the next year), keep records for the year you claimed it plus all years you used it.
  • Supporting documents include receipts, invoices, bank statements, mortgage statements, and charitable donation records — anything that backs up what you reported.
  • There is no penalty for keeping records longer than required, and digital storage costs almost nothing.

When three years is not enough

The three-year rule extends to six years if you underreported your income by 25 percent or more. This is called the six-year rule. The IRS measures this as gross income you failed to report, not deductions you claimed incorrectly. If your actual income was $100,000 and you reported $70,000, you have underreported by 30 percent, and the six-year window applies.

You also need to keep records longer if you claimed a loss that carries forward to future years. A business loss, capital loss, or net operating loss that you did not fully use in the year you claimed it can reduce your taxes in the following year or years. Keep the original return and all supporting documents for the year you claimed the loss, plus every year you used it to offset income.

If you never filed a return for a year, there is no statute of limitations. The IRS can go back as far as it wants. If you filed a fraudulent return, the same applies. These are rare situations, but they mean you should keep records indefinitely if either applies to you.

What documents to keep with your tax return

Your tax return itself is the starting point, but the IRS audit focuses on the documents behind it. Keep everything that supports the numbers on your return. For income, that means W-2 forms, 1099 forms, K-1 forms from partnerships or S corporations, and bank statements showing deposits. For self-employment income, keep invoices, sales records, and payment receipts.

For deductions, keep receipts, invoices, and statements. Charitable donations need written acknowledgment from the charity. Mortgage interest and property tax payments are documented on your 1098 and property tax statements. Medical expenses need receipts. Business expenses need invoices and proof of payment. Home office deductions need documentation of the square footage and how you calculated the deduction.

If you claimed a credit — the child tax credit, education credits, earned income tax credit — keep the documents that prove you met the requirements. For the child tax credit, that includes the child's Social Security number and proof of relationship. For education credits, keep tuition statements and proof of enrollment.

Digital storage and organizing your records

You do not need to keep paper copies. Photographs of receipts, scanned documents, and digital files all count as records. Many people photograph receipts with their phone and store them in a folder organized by year and category. Others use tax software that archives returns and lets you attach documents.

The IRS does not require a specific format. A PDF, a photograph, a spreadsheet, or a paper file all work. What matters is that you can produce the document if asked. If you store records digitally, make sure you have a backup — either on an external drive, cloud storage, or both. A hard drive failure or lost phone should not mean losing seven years of records.

Organize by year first, then by category: income, deductions, credits, and so on. This makes it much faster to find what you need if you are audited. Some people keep a summary sheet for each year listing what they claimed and where the supporting documents are.

What to do after the three-year window closes

Once three years have passed (or six years if the six-year rule applies, or longer if you claimed a carryforward loss), you can discard the supporting documents. You can also discard the tax return itself, though many people keep returns indefinitely for their own records. There is no harm in keeping them.

Before you discard anything, make sure you have addressed any pending issues. If the IRS sent you a notice or started an audit, do not discard anything until that matter is resolved and the statute of limitations has run on the audit result. If you are applying for a mortgage, a loan, or a job that requires tax return verification, keep the returns you will need to show.

Special situations that change the timeline

If you claimed a home office deduction, keep records for the year you claimed it plus as long as you own the home. The IRS can ask about depreciation recapture when you sell, which ties back to the deductions you claimed years earlier.

If you contributed to a retirement account — a traditional IRA, SEP-IRA, or solo 401(k) — keep the contribution records and any documentation of nondeductible contributions. These affect your tax basis and what you owe when you withdraw the money later.

If you received a settlement, inheritance, or insurance payout, keep the documentation. These can affect your tax situation years later if the IRS questions whether you reported all your income.

Frequently Asked Questions

Can the IRS audit me more than three years after I file?

Yes, if you underreported income by 25 percent or more, the IRS has six years. If you never filed a return or filed a fraudulent one, there is no time limit. For most people with straightforward returns, three years is the standard window.

Do I need to keep receipts if I have the credit card statement?

A credit card statement shows you made a charge, but not what you bought or whether it was deductible. Keep the receipt or invoice along with the statement. Together they prove both the amount and the nature of the expense.

What if I lost my receipts but still have my bank statements?

Bank statements alone are weak evidence. The IRS prefers receipts or invoices that show what you bought. If you lost receipts, a bank statement plus a written explanation of what the charge was for is better than nothing, but it is not ideal. Going forward, photograph receipts when you get them.

Should I keep my tax returns forever?

There is no requirement to keep returns longer than three years (or six years if applicable). Many people keep them indefinitely anyway because storage costs nothing and they are useful for reference. It is a personal choice, not a legal requirement.

Do I need to keep records for years I did not file a return?

If you did not file a return and the IRS has not contacted you, you should still keep records for those years. If the IRS discovers unreported income, it can go back indefinitely. Having documentation of your income and expenses protects you if that happens.