Keep federal tax returns for at least three years

The Internal Revenue Service can audit your return up to three years after you file it. That is the standard window, and it is the baseline for how long you should hold onto your tax return itself — the form you submitted — plus the documents that support the numbers on it.

Three years covers most situations. The IRS has no legal reason to request your records after that point unless they suspect fraud or you did not report income that should have been reported. For routine audits, three years is the rule.

Keep copies of everything you filed: the 1040 or other main form, all schedules, all attachments, and the proof that you sent it (a filing confirmation or postmark). Store these together in one place, either a folder or a digital file.

Key Takeaways

  • Keep your filed tax return and all supporting documents for at least three years from the date you filed.
  • If you claimed deductions or credits, keep the receipts, invoices, and statements that prove those numbers for the full three years.
  • Keep records longer than three years if you reported business income, rental income, or investment sales — the IRS can go back six years on income underreporting.
  • If you are unsure whether you filed correctly, keep records for seven years; the statute of limitations for fraud is longer and three years may not be enough protection.

Supporting documents you need to keep with your return

Your tax return is only one piece of paper. The IRS audit will ask for the documents that prove the deductions, credits, and income you reported. You need to keep those documents for the same three-year period.

If you claimed mortgage interest, property taxes, or charitable donations, keep the statements from your lender, tax assessor, or charity. If you claimed business expenses, keep receipts and invoices. If you reported investment income, keep the 1099 forms from your broker and the statements showing what you bought and sold. If you claimed child care costs, keep the invoices from the provider and proof of payment.

The specific documents depend on what you deducted. The rule is simple: if a number on your return came from a receipt, statement, or form, keep that document. Do not throw it away until three years have passed.

Situations where you should keep records longer than three years

Three years is the standard, but some situations require you to hold onto records longer. If you reported business income or rental income on your return, keep records for six years. The IRS can go back six years if it suspects you underreported income from a business or rental property.

If you sold a home or other real estate and reported a capital gain or loss, keep the purchase documents, sale documents, and any records of improvements you made to the property. The IRS can audit real estate transactions for up to six years after you file.

If you received a large inheritance or gift and reported it on your return, or if you made large charitable donations, keep those records for at least six years. The same applies if you reported foreign income or foreign bank accounts.

If you are genuinely uncertain whether you reported something correctly, or if you suspect you made an error, keep records for seven years. The statute of limitations for fraud is longer, and keeping records for seven years gives you more protection if the IRS comes back with questions years later.

How to store your tax records safely

Paper records should go in a folder or box in a dry place — not a basement where water damage could destroy them, and not an attic where heat and humidity break down paper over time. A closet or filing cabinet in your home works. Label the folder with the year so you know which records belong to which return.

Digital copies are often safer. Scan your return and all supporting documents and save them to a folder on your computer or to cloud storage like Google Drive or Dropbox. Take a photo of receipts and invoices with your phone and save those images in the same folder. Digital files take up no physical space and are harder to lose to fire or water damage.

If you use tax software or work with a tax preparer, ask whether they keep copies of your return and documents. Many do, and they will store them for you. That does not mean you should not keep your own copies — you should — but it is a backup if your home copies are lost.

What to do after three years have passed

Once three years (or six years, or seven years, depending on your situation) have passed, you can throw away the supporting documents. Shred them rather than putting them in the trash, because they contain personal information like your Social Security number and bank account details.

Keep the actual tax return itself — the 1040 or other form you filed — for longer. Many people keep their returns permanently. There is no legal requirement to do so, but a copy of your return is useful for proving your income history if you apply for a mortgage, a loan, or certain government benefits. A return from ten years ago is still proof that you earned a certain amount in that year.

If you are retired or no longer working, you can throw away old returns once you are certain you will not need them for any future purpose. If you are still working or might need to prove past income, keep them indefinitely.

State tax returns and other records

Your state tax return should be kept for the same length of time as your federal return. Most states follow the federal three-year rule, but a few states allow audits for longer periods. Check your state's tax authority website to confirm the rule in your state.

If you filed in multiple states — because you lived in one state and worked in another, or because you had income from multiple states — keep the returns and supporting documents for all of them for at least three years.

Keep records related to property taxes, vehicle registration, and insurance for at least three years as well, even if they are not part of your tax return. These documents often come up in audits and are useful for other purposes like insurance claims.

Frequently Asked Questions

What if the IRS contacts me about a return from five years ago?

The IRS can contact you about a return from five years ago only if it suspects fraud or if you significantly underreported income. If you receive an audit notice, gather whatever records you still have and respond. If you threw away supporting documents, tell the IRS that and provide whatever proof you can find. The burden is on the IRS to prove you owe more tax, not on you to prove you do not.

Do I need to keep receipts if I use accounting software?

Yes. Accounting software records what you entered, but it does not prove that the numbers are correct. The IRS will ask for the original receipts and invoices. Keep both the digital record in your software and the paper or digital copies of the receipts themselves.

Can I throw away my return after I file it electronically?

No. Keep a copy of your filed return even if you filed electronically. The IRS has a copy, but you need your own copy for your records, for future reference, and to respond if you are audited. Download your return from the tax software you used or request a transcript from the IRS.

What if I never received a confirmation that my return was filed?

Contact the IRS or your tax preparer to confirm that your return was received and processed. If it was not filed, file it now. If it was filed, request a copy from the IRS using Form 4506-C. Keep that copy with your other records for three years.

How do I know if I should keep records for six years instead of three?

You should keep records for six years if your return included business income, rental income, investment sales, or foreign income. If you are unsure, keep records for six years. It is safer to keep them longer than to throw them away too soon.