The IRS wants you to keep tax returns and supporting documents for at least three years
The standard rule from the Internal Revenue Service is three years. That is how long the IRS has to audit your return and assess additional tax. If you kept records for three years and the IRS contacts you about that tax year, you have met the basic requirement.
But three years is not always enough. The timeline extends if you underreported income, if you claim certain credits, or if you did not report income you should have. The IRS can go back six years if you underreported gross income by 25 percent or more. There is no time limit if you filed a fraudulent return or did not file at all.
The documents you need to keep are not just the return itself. You need the receipts, invoices, bank statements, and other papers that support the numbers on your return — especially for deductions, business expenses, and credits you claimed.
Key Takeaways
- Keep tax returns and supporting documents for at least three years from the date you filed or the return was due, whichever is later.
- If you underreported income by a significant amount, the IRS can audit you for six years instead of three.
- Supporting documents include receipts, invoices, bank statements, and proof of deductions — not just the return form itself.
- If you claimed a loss carryforward or certain credits, keep records longer because those claims affect future years.
- There is no time limit if you did not file a return or filed a fraudulent one.
When three years is not enough
The three-year rule assumes you reported your income correctly. If you did not, the clock runs longer. The IRS has six years to assess tax if you underreported your gross income by 25 percent or more. That means if your actual income was $100,000 and you reported $75,000 or less, the six-year window applies.
Certain credits and deductions also require you to hold onto records longer than three years. If you claimed the Earned Income Tax Credit (EITC), keep records for at least three years after you filed. If you claimed a loss carryforward — a business loss you are carrying into future years — keep the original return and the loss documentation for as long as that loss affects your tax liability. The same applies if you claimed a bad debt deduction or worthless securities.
Real estate and investment property records should be kept for at least three years after you sell the property, because the IRS will want to verify your basis and gain or loss. If you own rental property, keep records for three years after the year you stop renting it out.
What documents to save with your return
Your tax return is one piece of paper. The supporting documents are everything else. For income, keep W-2 forms, 1099 forms, K-1 forms from partnerships or S corporations, and bank statements showing deposits. If you received income that was not reported on a form, keep the invoice or receipt that shows you earned it.
For deductions, keep the receipts and invoices. If you deducted home office expenses, keep the square footage calculation and utility bills. If you deducted vehicle mileage, keep a log or contemporaneous record of the trips. If you deducted charitable donations, keep the receipt from the charity or a bank record showing the transfer. If you deducted medical expenses, keep the bills and explanation of benefits from your insurance.
For business expenses, keep receipts for supplies, equipment, rent, and payroll. If you claimed depreciation on equipment or property, keep the purchase receipt and the depreciation schedule. If you paid estimated taxes, keep the payment confirmations. If you claimed a credit — child tax credit, education credit, energy credit — keep the documents that prove you were may have access to to it.
How long to keep records after you sell an investment or property
When you sell a stock, mutual fund, rental property, or other investment, the IRS wants to know your basis — what you paid for it — and your gain or loss. Keep the purchase confirmation, any statements showing reinvested dividends, and the sale confirmation. Keep these records for at least three years after the year you sold it.
If you inherited property and later sold it, keep the inheritance documents and the appraisal used to establish your stepped-up basis. If you received property as a gift, keep the donor's records showing what they paid for it. These records matter because they determine whether you owe tax on the gain.
If you sold a home and excluded part of the gain from tax under the primary residence exclusion, keep the purchase documents, sale documents, and records of any improvements you made. The IRS can challenge the exclusion years later if your records are unclear.
Storage and organization
You can store tax records on paper or digitally. The IRS does not require a specific format. A photograph of a receipt, a scanned copy, or the original paper all count. If you store records digitally, make sure you can access them — keep them on a device you still use or in cloud storage you maintain, not on an old computer or external drive you no longer check.
Organize records by year and by category: income, deductions, credits, investments. When tax time comes around, you will know where to find what you need. If the IRS audits you, organized records make the process faster and less stressful.
Some people use tax software or a tax professional who keeps copies. If that is your situation, ask whether they will store your records and for how long. Do not assume they will keep them indefinitely. It is your responsibility to retain them.
What happens if you do not have records when audited
If the IRS audits you and you cannot produce supporting documents, you lose the deduction or credit. The IRS will disallow it, and you will owe additional tax plus interest. If the IRS determines you were negligent — that you should have kept records but did not — you may also owe a penalty.
You can reconstruct some records. Bank statements, for example, can be obtained from your bank years later. Charitable organizations can confirm donations. Employers can provide copies of W-2 forms. But reconstruction takes time and is not always possible. Keeping the original records is simpler.
Frequently Asked Questions
Do I need to keep the actual paper return or just the supporting documents?
Keep both. The return itself shows what you reported, and the supporting documents prove it is correct. If you filed electronically, you should have a confirmation number and a copy of what you submitted. Print it or save it as a PDF alongside your supporting documents.
Can I throw away records after three years if I have not heard from the IRS?
Technically yes for most returns, but it is risky. The IRS does not announce audits in advance. If they contact you about a year you thought was closed, you will wish you had kept the records. Many people keep records for five to seven years as a buffer. For investments and property sales, keep records longer because the IRS can challenge the basis years after the sale.
What if I filed an amended return — how long do I keep those records?
Keep amended return records for three years from the date you filed the amendment, not from the original return date. The three-year window restarts when you file the amended return. Keep both the original and amended returns and all supporting documents for both.
Do I need to keep records for returns I filed but did not owe tax?
Yes. A return showing zero tax or a refund still needs supporting documents. The IRS can audit any return, regardless of whether you owed tax. The supporting documents prove your income and deductions were reported correctly.
What about records for business returns like Schedule C or Schedule F?
Keep business records for at least three years, but often longer. If you claimed a loss that you are carrying forward to future years, keep records until that loss is fully used up. If you depreciated equipment, keep records for three years after you sell or dispose of the equipment. Many business owners keep records for five to seven years as standard practice.