How many years you need to keep tax returns

Keep your federal tax returns for at least three years from the date you filed them. The IRS can audit your return during this window, and you will need the original return to respond. If you owe back taxes or the IRS suspects underreported income, they can go back six years. In rare cases involving fraud, there is no time limit — the IRS can audit you indefinitely.

State tax returns follow similar rules, though some states have shorter windows and others longer. Check your state's tax agency website for the specific requirement where you live, since it may differ from the federal rule. If you file in multiple states, keep each state return for that state's required period.

The safest approach is to keep all tax returns and supporting documents for seven years. This covers the standard three-year audit window, the six-year window for underreporting, and gives you a one-year buffer. After seven years, you can shred or delete the documents with confidence.

Key Takeaways

  • The IRS can audit your return for three years from the filing date, so keep your return and receipts for at least that long.
  • If you underreported income, the IRS has six years to audit you, so keeping documents for seven years covers both timelines.
  • State tax returns may have different retention rules than federal returns, so check your state's requirement separately.
  • Keep supporting documents — receipts, invoices, bank statements, and mileage logs — for the same period as your return, since the IRS will ask for them during an audit.
  • After seven years, you can safely discard paper documents or delete digital files, unless you are involved in an ongoing dispute with the IRS.

What documents to keep with your tax return

Do not keep just the return itself. The IRS will ask for the documents that back up what you reported. This includes receipts and invoices for deductions you claimed, bank statements showing income deposits, 1099 forms from clients or employers, W-2 forms, and mortgage interest statements if you itemize. If you claimed business expenses, keep mileage logs, vehicle maintenance receipts, and office supply invoices.

For investment income, keep brokerage statements showing the purchase price and sale price of stocks or mutual funds. For charitable donations, keep receipts from the charity or bank statements showing the transfer. If you claimed home office deductions, keep photos of the space and documentation of the square footage you use for business.

Digital copies count. You can photograph receipts with your phone, scan documents, or read statements from your bank or brokerage. Store them in a folder on your computer or in cloud storage like Google Drive or Dropbox. The IRS accepts digital records as long as they are legible and show the same information as the original.

When the IRS can go back more than six years

The six-year rule applies when you underreport income by 25 percent or more. If your actual income was $100,000 and you reported $75,000, the IRS can audit back six years instead of three. This is called the substantial underreporting rule, and it shifts the burden to you to prove the income was not yours.

Fraud has no time limit. If the IRS believes you deliberately hid income or inflated deductions to evade taxes, they can audit you for any year you filed. Fraud is a serious accusation and requires evidence of intentional wrongdoing, not just a mistake. If you are under investigation for fraud, keep all documents indefinitely until the case closes.

If you did not file a return in a given year, the IRS can go back and assess taxes for that year at any time. There is no statute of limitations on unfiled returns. If you missed filing years in the past, consider filing those returns now to limit your exposure.

State tax return retention rules

Most states follow the federal three-year rule, but some are stricter. California requires you to keep records for four years. New York requires four years. Illinois requires five years. A few states have no specific requirement, which means you should follow the federal rule to be safe.

If you moved to a new state, you may still owe taxes to your previous state for the years you lived there. Keep returns from all states where you filed, even if you no longer live there. Some states can audit you for longer than three years if they suspect underreporting.

Check your current state's tax agency website for the exact retention period. Search "[your state] tax records retention" or look for a FAQ page on the state revenue department site. If you file in more than one state, keep each return for the longest period required by any state where you filed.

How to organize and store tax documents

Create a folder for each tax year. Label it with the year — "2024 Taxes" or "Tax Year 2023" — and put the return itself, all supporting documents, and copies of forms you received (W-2s, 1099s, K-1s) in that folder. If you file on paper, use a file box or filing cabinet. If you file digitally, create a folder on your computer or in cloud storage.

For digital storage, take photos of paper receipts as soon as you get them. Use your phone's camera or a scanning app like Adobe Scan or Microsoft Lens. Save the image with a clear name — "Office Depot receipt Jan 15" rather than "IMG_2847" — so you can find it later. Store all images in the same folder as your return.

Back up your digital files. If you store documents on your computer, copy the folder to an external hard drive or cloud storage once a year. If your computer fails, you will still have the documents. Cloud storage like Google Drive, OneDrive, or Dropbox backs up automatically, so you do not have to remember.

What to do after the retention period ends

Once seven years have passed since you filed a return, you can safely destroy the documents. Shred paper documents or run them through a paper shredder to prevent identity theft. For digital files, delete them from your computer and empty the trash folder. If you use cloud storage, delete the folder and empty the trash there too.

Before you discard anything, make sure you are not in the middle of an audit or dispute with the IRS. If the IRS has contacted you about a return, keep all documents for that year until the case is closed, even if seven years have passed. If you are claiming a loss that carries forward to future years, keep the documents for the year the loss occurred plus seven more years.

If you are self-employed or own a business, some documents may need to stay longer. Inventory records, equipment purchase receipts, and depreciation schedules should be kept for seven years after you sell the asset or close the business. Ask your accountant if you are unsure about a specific document.

Frequently Asked Questions

Do I need to keep the original paper return or is a copy okay?

A copy is fine. The IRS does not require the original. If you filed electronically, you have a confirmation number and a digital copy — that is sufficient. If you filed on paper, keep the copy you made before mailing it, or the IRS's acceptance letter if you filed in person at an office.

What if I filed an amended return?

Keep both the original return and the amended return for seven years. The IRS may ask about either one during an audit. If you filed multiple amendments for the same year, keep all versions. Label them clearly so you know which is the original and which is the amendment.

Can I throw away receipts if I have the credit card statement showing the charge?

The credit card statement alone is usually not enough. The IRS wants to see what you bought, not just that you spent money. Keep the receipt or invoice along with the statement. For large purchases, the receipt is especially important because it shows the item description and the business name.

How long do I keep documents if I am self-employed?

Keep business records for seven years, the same as personal tax returns. This includes invoices you sent to clients, receipts for business expenses, mileage logs, and bank statements for your business account. If you claim depreciation on equipment or property, keep the purchase receipt and depreciation schedule for seven years after you sell or dispose of the asset.

What if the IRS contacts me about a return from 10 years ago?

This is rare but possible if fraud is suspected. If the IRS contacts you, do not discard any documents related to that year. Tell your accountant or tax professional when ready. They can request the statute of limitations and help you gather documents to respond. Keep everything until the case is resolved.