Keep federal tax returns for at least three years

The Internal Revenue Service (IRS) can audit your return for three years after you file it. This is the standard lookback period, and it is the main reason tax professionals recommend keeping your returns and the documents that support them for at least three years from the date you filed.

If you filed on April 15, 2024, you should keep those records through April 15, 2027. If you filed an extension and submitted your return on October 15, 2024, the three-year clock starts from that later date. The IRS does not contact you to say an audit window has closed — you need to track it yourself or mark your calendar when you file.

Three years is the floor, not the ceiling. There are situations where keeping records longer makes sense, and the IRS can reach back further if it suspects underreporting of income or fraud.

Key Takeaways

  • Keep your filed tax return and all supporting documents (W-2s, 1099s, receipts, bank statements) for at least three years from the filing date.
  • If you claimed deductions for a home office, rental property, or business expenses, keep those records for six years because the IRS has a longer lookback period for those claims.
  • If you did not report income that should have been reported, the IRS can audit you indefinitely, so keeping records longer than three years protects you if questions arise later.
  • State tax returns often have different retention rules — some states follow the federal three-year rule, while others require five or seven years.
  • Once you are certain the retention period has passed, shred documents with personal information rather than throwing them away whole.

Six years if you underreported income by 25 percent or more

If the IRS suspects you underreported your income by 25 percent or more, the agency can audit you for six years instead of three. You will not know this is the reason for an audit until the IRS contacts you, but the longer retention period protects you if that happens.

This applies to gross income — the total you should have reported before deductions. If your return showed $50,000 in income but you actually earned $62,500, that is a 25 percent underreport. The IRS does not have to prove intent or negligence; the percentage alone extends the window.

Keeping records for six years is a reasonable precaution if you are self-employed, receive cash payments, have multiple income sources, or claim significant deductions. It costs nothing to store documents longer, and it removes the risk of being caught without proof if an audit happens in year four or five.

Keep records indefinitely if fraud is involved

There is no statute of limitations if the IRS suspects fraud or tax evasion. The agency can audit you five years, ten years, or twenty years after you file if it believes you intentionally misrepresented your income or claimed false deductions.

Fraud is a high bar — it requires intent to deceive, not just a mistake or aggressive interpretation of the rules. But if you are ever contacted by the IRS about a return you filed years ago, you will need the original documents to defend yourself. Keeping records indefinitely is the only way to may provide you have them if that happens.

If you have ever been audited or contacted by the IRS about a specific year, keep those records longer than you normally would. The agency sometimes reopens cases or asks follow-up questions years later.

State tax returns often require longer retention

Your state may have a different retention requirement than the federal government. Some states follow the federal three-year rule, but others require you to keep records for five, six, or seven years.

A few states have no statute of limitations for audits, similar to the federal fraud rule. If you live in a state with income tax, contact your state tax agency or check its website to learn the specific requirement. The cost of keeping documents a few years longer is small compared to the risk of being unable to defend a state audit.

If you have moved to a different state since filing, you may need to keep records for both your old state and your new one. Some states audit returns from people who moved away, especially if there are questions about when residency changed.

What documents to keep with your tax return

Do not throw away just the return itself. Keep everything you used to prepare it: W-2 forms from your employer, 1099 forms for freelance income or investment earnings, receipts for deductions you claimed, bank statements, mortgage interest statements, property tax records, charitable donation receipts, and medical expense documentation.

If you paid someone to prepare your return, keep a copy of the completed return and the worksheets or notes they gave you. If you used tax software, print a copy of the final return and keep any supporting schedules the software generated.

For business owners and self-employed people, keep invoices, expense receipts, mileage logs, and profit-and-loss statements. For rental property owners, keep records of repairs, improvements, and maintenance costs. The IRS does not ask for these documents when you file, but it will ask for them if you are audited.

How to store and dispose of old tax records

Store tax documents in a safe, dry place — a filing cabinet, a storage box, or a safe deposit box at your bank. Digital copies are acceptable if you scan them clearly and store the files securely. Many people keep both a paper copy and a digital backup.

Once the retention period has passed, shred documents that contain personal information like your Social Security number, bank account numbers, or address. Do not straightforward throw them in the trash. A cross-cut shredder is inexpensive and makes documents unreadable.

If you have many years of old returns to dispose of, some tax preparation offices and libraries offer free shredding events once or twice a year. Check with your local library or search for "tax document shredding near me" to find options in your area.

Frequently Asked Questions

Do I need to keep the original receipts or just the tax return?

Keep both the return and the receipts. The IRS does not ask for receipts when you file, but if you are audited, the agency will ask to see proof of the deductions you claimed. A receipt shows what you bought, when, and how much you paid. Without it, you cannot defend the deduction.

What if I filed an amended return — how long do I keep that?

Keep the amended return (Form 1040-X) and all supporting documents for the same period as your original return. The three-year clock starts from when you filed the amended return, not the original one. If you amended a 2021 return in 2024, keep those records through 2027.

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

You can, but only if you are certain the three-year period has passed. If you filed on April 15, 2024, you can safely discard those records on April 16, 2027. If you are unsure of the exact filing date, keep the records one more year to be safe. The cost of storage is minimal compared to the risk.

Do digital copies count, or do I need to keep paper originals?

Digital copies are acceptable if they are clear, complete, and stored securely. Scan both sides of documents and save them with a descriptive filename (for example, "2024_W2_Employer_Name"). Keep the digital files backed up in at least two places — your computer and cloud storage, or an external drive and cloud storage.

What if I lost some receipts — will the IRS reject my deductions?

Missing receipts do not automatically disqualify a deduction, but they make it harder to defend if you are audited. The IRS may accept other evidence like bank statements, credit card statements, or written records you kept at the time. If you are audited and cannot produce receipts, the IRS can disallow the deduction or reduce the amount you claimed.