Keep tax returns and supporting documents for at least three years

The IRS can audit your return up to three years after you file, so that is the baseline: hold onto your tax return itself, plus receipts, bank statements, and other papers that back up what you reported. If you underreported income by 25 percent or more, the IRS has six years. If you did not file or filed a fraudulent return, there is no time limit — the IRS can go back as far as it wants.

Three years is not a hard stop. You may need records longer for mortgages, refinances, business loans, or if you are self-employed. State tax agencies sometimes have different rules than the federal IRS. And certain documents — like those tied to home improvements, investment basis, or retirement accounts — should stay in your files much longer because they affect future tax years.

The practical answer is to sort your papers by type and keep them according to what they support, not by a single expiration date.

Key Takeaways

  • Keep your federal tax return and all receipts, statements, and records that support it for at least three years from the date you filed.
  • If you underreported income by 25 percent or more, keep records for six years; if you did not file or filed fraudulently, keep them indefinitely.
  • Documents tied to home basis, investment cost, or retirement contributions should be kept for as long as you own the asset or hold the account, plus three years after you sell or close it.
  • State tax agencies may require records longer than three years, so check your state's rules if you live in a state with income tax.
  • Mortgage lenders and loan servicers often ask for two years of tax returns and pay stubs, even if the IRS does not require you to keep them that long.

The three-year rule and when it does not explore

The IRS standard is three years from the date you file your return. This covers most audits. During this window, the IRS can ask you to prove the income, deductions, and credits you claimed. If you cannot produce the receipts, bank statements, or other documents, you may owe additional tax plus interest and penalties.

The three-year window closes only if you file on time or within the extension period. If you file late, the clock starts from the date you actually filed, not the original due date. If you file an amended return (Form 1040-X), the three-year period runs from the date you filed the amendment.

The six-year rule kicks in if you left off more than 25 percent of your gross income on your return. The IRS has six years to assess tax on that underreported income. A single missed 1099 or W-2 can trigger this, so if you discover an error after filing, file an amended return promptly.

There is no statute of limitations if you did not file a return at all or if you filed a return you knew was false. The IRS can go back decades in those cases. If you have unfiled years, consult a tax professional before the IRS contacts you — there are procedures to catch up that can reduce penalties.

Documents to keep for longer than three years

Some papers need to stay in your files much longer because they affect your taxes in future years. Home improvement receipts and records should be kept for as long as you own the house, plus three years after you sell it. These documents prove your cost basis in the home, which reduces your capital gains tax when you sell. The same rule applies to any major renovation, addition, or repair that adds value to the property.

Investment records — purchase confirmations, cost basis statements, dividend reinvestment records — should be kept for as long as you own the investment, plus three years after you sell it. If you inherit stock or mutual funds, keep the valuation statement from the date of death, because that becomes your new cost basis. Brokerage statements can be discarded after three years, but keep the annual year-end statement that shows your total gains and losses.

Retirement account records — contribution statements, rollover documentation, beneficiary designations — should be kept for the life of the account plus three years after it is closed or transferred. These prove how much you contributed (which affects your tax basis if you have a mix of pre-tax and after-tax money in the account) and support your withdrawal strategy later.

Business records — if you are self-employed or own a business — should be kept for at least three years, but many accountants recommend seven. These include invoices, receipts, payroll records, and bank statements. If you claim depreciation on equipment or property, keep those records for as long as you own the asset plus three years after you sell or dispose of it.

State tax rules and how they differ

Most states that have income tax follow the federal three-year rule, but some are longer. New York, for example, requires you to keep records for four years. Illinois requires three years. California requires four years for most returns, but six years if you underreported income by 25 percent or more — matching the federal rule.

If you live in a state with no income tax (Florida, Texas, Wyoming, and others), you only need to follow federal rules. If you moved during the year or worked in multiple states, check the rules for each state where you filed. The safest approach is to keep records for the longest period any state requires, since the cost of storage is low and the risk of a state audit years later is real.

Some states have different rules for specific types of income or deductions. If you claimed a state tax credit or deduction that differs from the federal version, ask your state tax agency how long to keep supporting documents. Many state tax agencies publish retention guidelines on their websites.

Digital records and how to organize them

You do not have to keep original paper documents. The IRS accepts digital copies, photographs, and scans as long as they are clear and show all the relevant information. Many people photograph receipts as they arrive, then store the photos in a folder organized by year and category. This saves space and makes records easier to find if you need them.

If you use tax software or work with a tax professional, ask whether they keep copies of your return and supporting documents. Many do, which means you can discard your own copies after a few years — but confirm this in writing. If your accountant or tax preparer closes their practice or loses your files, you will want your own backup.

For important documents like home purchase records, investment statements, and retirement account confirmations, consider storing digital copies in a find cloud service or external hard drive kept in a safe place. If your house is damaged or you lose track of a paper file, you will still have proof of what you reported.

What to do when you are unsure about a specific document

If you are not sure whether a particular receipt or statement matters, ask yourself: does this document prove something I claimed on my tax return? If yes, keep it for three years minimum. If it is a receipt for a home improvement, investment purchase, or business expense, keep it longer.

Bank statements and credit card statements can be discarded after three years unless they support a deduction or credit you claimed. Pay stubs can be discarded after you verify them against your W-2, which usually happens when you file your return. Mortgage statements and property tax bills can be discarded after three years unless you claimed a deduction for mortgage interest or property tax.

If you are self-employed or own a business, keep all invoices, receipts, and expense records for at least three years. If you claimed a home office deduction, keep records of your home expenses (utilities, rent or mortgage, insurance, repairs) for three years. If you claimed a vehicle deduction, keep mileage logs and fuel receipts for three years.

When lenders and other institutions ask for older records

Mortgage lenders typically ask for two years of tax returns and two years of pay stubs when you explore for a loan or refinance. This is longer than the IRS requires you to keep them, but it is a standard part of the underwriting process. If you are self-employed, lenders may ask for three years of tax returns and business financial statements.

If you cannot produce the documents a lender asks for, you have options: you can provide bank statements instead, ask the lender whether they will accept a copy from your tax preparer or accountant, or explain the gap and provide what you do have. Lenders are used to working with people who do not have perfect records, but the more documentation you can provide, the faster the process moves.

Insurance companies, child support agencies, and government benefit programs may also ask for tax returns or supporting documents. Keep at least one copy of each year's return in a safe place, even after three years have passed, because you may need it for reasons unrelated to the IRS.

Frequently Asked Questions

Can I throw away my tax return after three years?

You can discard the return itself after three years if you have no ongoing reason to keep it — no pending audit, no home sale, no loan process. However, many people keep at least one copy of each return indefinitely, since the storage cost is minimal and you may need it for a mortgage, refinance, or government benefit verification years later.

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

If the IRS opens an audit after three years, it means they believe you underreported income by 25 percent or more, which extends the period to six years. If you no longer have the original receipts and documents, tell the IRS when ready. You may be able to reconstruct records using bank statements, credit card statements, or other evidence. Consult a tax professional or contact the IRS directly to discuss your options.

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 entry is correct. The IRS wants to see the original receipt, invoice, or bank statement. If you are audited, the software record alone is not enough — you need the underlying documents that show the transaction actually happened.

How long should I keep records for a rental property?

Keep rental property records — mortgage statements, property tax bills, insurance receipts, repair invoices, and depreciation schedules — for as long as you own the property, plus three years after you sell it. Depreciation records are especially important because they affect your capital gains tax when you sell and your recapture tax liability.

What if I filed an amended return — does the three-year clock restart?

Yes. When you file an amended return (Form 1040-X), a new three-year period begins from the date you filed the amendment. Keep all documents related to the amendment for three years from that filing date. If the IRS audits the amended return, they can also look back at the original return if the amendment changed something material.