Keep tax returns for at least three years, and longer if you have business income, rental property, or significant deductions

The Internal Revenue Service (IRS) can audit your return up to three years after you file it in most cases. That means you need to hold onto your tax return itself, plus all the documents that back it up — W-2s, 1099s, receipts, bank statements, and anything else you used to calculate your numbers. If the IRS finds you underreported income by 25 percent or more, they can go back six years. If they suspect fraud, there is no time limit at all.

The three-year rule is the floor, not the ceiling. Depending on what's on your return, you may need to keep records much longer. A mortgage interest deduction, for example, stays relevant as long as you own the house. A business loss that you carry forward to future years means those records matter for years to come.

Key Takeaways

  • Keep your filed tax return and all supporting documents for at least three years from the date you filed.
  • If you reported business income, rental income, or claimed significant deductions, keep records for six years or longer.
  • Documents tied to assets you still own — a house, investment account, or business — should be kept as long as you own them, plus three years after you sell.
  • The IRS has no time limit to audit if they suspect fraud, so keeping records indefinitely for high-value or complex returns is reasonable.
  • Digital copies stored securely count as valid records; you do not need to keep paper originals if you have a clear, legible scan.

The three-year standard for most returns

The IRS generally has three years from the date you file to audit your return and assess additional tax. This is called the statute of limitations. If you file on April 15, the clock starts then. If you file early in February, the clock starts in February. The three years runs from the filing date, not from the tax year itself.

During those three years, the IRS can request any document you used to prepare your return. That includes your actual return (Form 1040, 1040-SR, or whatever form you filed), all schedules and attachments, W-2s and 1099s from employers and financial institutions, receipts for deductions, bank and credit card statements, mileage logs, medical bills, charitable donation records, and anything else that supports a number on your return.

After three years, the IRS cannot assess additional tax based on that return unless they find a substantial underreporting of income. Once three years have passed and no audit has started, you are generally safe from that return — but keep the documents anyway if they relate to something ongoing, like a rental property or a business.

When to keep records for six years or longer

If you reported business income on Schedule C, rental income on Schedule E, or farm income on Schedule F, keep your records for six years. The IRS treats self-employment and rental income as higher-risk categories and allows itself a longer audit window for these returns.

The six-year rule also applies if you underreported your income by 25 percent or more, whether intentionally or by mistake. The IRS does not have to tell you they are using the six-year window until they contact you, so if you have any uncertainty about whether your income was fully reported, keep the records.

If you claimed a loss on a business or rental property and carried that loss forward to reduce income in future years, keep those records until three years after the loss is fully used up. The same applies to tax credits you carried forward, like the child tax credit or education credits — keep the supporting documents as long as the credit is active on your returns.

Documents tied to assets you own

Some records matter for as long as you own an asset, not just for three or six years. If you own a house, keep your mortgage documents, property tax records, and receipts for major improvements (a new roof, foundation work, a deck) for as long as you own the house, plus three years after you sell it. The IRS may ask about these when you report the sale and calculate your capital gain.

If you own stocks, bonds, mutual funds, or other investments, keep the purchase confirmations and cost basis records for three years after you sell the investment. If you inherited an investment, keep the inheritance documents and the valuation statement from the date of death indefinitely — you may need them to prove your cost basis if you sell years later.

If you own a business, keep all business records — income statements, expense receipts, payroll records, loan documents — for at least six years, and longer if the business is still operating. Some business records, like corporate bylaws or partnership agreements, should be kept indefinitely.

What happens if you cannot find a document

If the IRS audits you and you cannot locate a receipt or statement, you are not automatically disqualified from claiming that deduction. You can reconstruct the expense using bank statements, credit card statements, or other evidence. A credit card statement showing a charge to a medical provider, for example, can support a medical deduction even if you have lost the receipt.

If you have no documentation at all for a deduction, the IRS will likely disallow it. That is why keeping records matters — not because the IRS will definitely audit you, but because if they do, you will have the proof you need. If you are audited and cannot support a deduction, you will owe the tax you avoided plus interest and possibly penalties.

Digital copies and storage methods

You do not have to keep paper originals. A clear, legible scan or photograph of a receipt, statement, or document is acceptable to the IRS as long as the image shows all the relevant information. Many people photograph receipts with their phone, store them in a folder on their computer, and delete the paper original.

Store digital copies in a way that will survive a computer failure or lost device. A cloud storage service like Google Drive, Dropbox, or OneDrive is safer than a file on your desktop. Some people use a dedicated tax software that archives documents, or they keep a folder organized by year and back it up to an external drive.

If you use tax preparation software that stores your return and documents, check whether that storage is permanent or whether files are deleted after a certain period. TurboTax, for example, stores your returns for multiple years, but you should not rely on that as your only backup. read a copy of your filed return and keep it separately.

Fraud and the unlimited statute of limitations

If the IRS suspects fraud — not just a mistake, but intentional misreporting — they can audit your return at any time, even decades later. Fraud is a serious allegation and requires clear evidence, but it means you should keep records for high-value returns, returns with complex deductions, or returns you are uncertain about.

If you have ever received a notice from the IRS about underreporting income or have amended a return, keep the records for that return indefinitely. If you have ever been audited, keep those records for at least ten years. These are not legal requirements, but they are practical safeguards.

Frequently Asked Questions

Can I throw away my tax return after three years?

You can throw away the return itself after three years if you have no ongoing deductions or assets tied to it. However, keep supporting documents longer if they relate to something you still own or claim — a house, investment, or business. If you are unsure, keeping the whole file for six years is the safer choice.

What if I filed an amended return?

Keep records for the amended return for three years from the date you filed the amendment, not from the original filing date. If you amended a return to fix a mistake, the three-year clock resets. The IRS can audit either the original or amended return during that period.

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

A credit card statement showing the charge is usually enough to prove the expense happened and the amount. However, if the IRS questions what the charge was for, a receipt with details (like a medical bill showing the provider's name and the service) is stronger evidence. Keep receipts for large or unusual expenses.

How long should I keep records for a business I sold?

Keep business records for at least six years after you close the business, and longer if you carried forward a loss or credit. If you sold the business and reported a capital gain, keep the records that support your cost basis and the sale price for three years after the sale is reported on your return.

What if I lost all my records in a fire or flood?

Document the loss with photos or a police report, and contact the IRS if you are audited. You can reconstruct expenses using bank statements, credit card statements, and other records. The IRS understands that disasters happen and will work with you to verify what you can.