Keep tax returns for at least three years, and longer if you have business income, rental property, or investments
The Internal Revenue Service (IRS) can audit your return up to three years after you file, which is why three years is the baseline for keeping tax documents. However, the actual answer depends on your situation. If you underreported income by 25 percent or more, the IRS can go back six years. If you never filed a return, there is no time limit. If you own a business or rental property, you may need to keep records much longer.
This guide walks you through how long to hold onto different types of tax documents and what happens if you throw them away too soon.
Key Takeaways
- Keep tax returns and supporting documents for at least three years from the date you filed, because the IRS has three years to audit most returns.
- If you reported business income, rental income, or investment losses, keep records for seven years or longer, since the IRS scrutinizes these more closely.
- Keep records related to home purchases, major home improvements, and investment property indefinitely, because you will need them when you sell.
- The IRS can go back six years if you underreported income by 25 percent or more, and has no time limit if you never filed.
- Organize documents by year and store them in a cool, dry place, or scan them and save the digital copies in a password-protected location.
The three-year rule for most taxpayers
For a standard return with W-2 wages, a mortgage interest deduction, and no business or investment income, three years is the minimum. This covers the IRS's normal audit window. Count three years from the date you filed, not from the tax year itself. If you filed your 2023 return on April 15, 2024, keep it until April 15, 2027.
Your supporting documents—pay stubs, mortgage statements, charitable donation receipts, medical expense records—should be kept for the same three years. These are what the IRS will ask for if they audit. Without them, you cannot prove the deductions you claimed.
After three years, you can shred or delete these documents. The IRS will not come looking for something older than that unless one of the exceptions below applies to you.
When to keep records for six years or longer
The IRS extends its audit window to six years if you underreported your gross income by 25 percent or more. This is a significant underreport—if you earned $40,000 and reported only $30,000, that triggers the six-year rule. Keep all documents from that return for six years.
If you own a business, you should keep business tax records for at least seven years. The IRS treats business returns differently from wage-earner returns and audits them more often. This includes invoices, receipts, bank statements, payroll records, and expense documentation. The same applies if you report rental income from a property you own.
If you claimed an investment loss and carried it forward to future years, keep the records for the year you claimed the loss plus seven years. The IRS will cross-reference the loss against your future returns to verify you did not claim it twice.
Documents to keep indefinitely
Some documents should never be thrown away, because you will need them long after the IRS audit window closes. Keep indefinitely: records of home purchases, home improvements, investment property purchases, and cost basis documentation for stocks or mutual funds.
When you sell your home, you will need to prove what you paid for it and what you spent on major improvements (a new roof, foundation work, kitchen renovation). These reduce your taxable gain. If you cannot produce the receipts, you lose the deduction. Keep the original purchase agreement, closing statement, and receipts for any capital improvements for the life of your ownership, plus several years after you sell.
For investments, keep the original purchase confirmation and cost basis records forever. If you inherit stock or mutual funds, the cost basis resets to the value on the date of death—but you need the original purchase records to prove what you paid if the IRS questions the inherited value.
What to do if you have already thrown documents away
If you discarded tax documents within the three-year window and the IRS audits you, you can still defend your deductions. The IRS does not require original receipts; it accepts bank statements, credit card statements, cancelled checks, and written statements from you explaining what the expense was. If you paid by credit card, your credit card company has the record. If you paid by check, your bank has the cancelled check image.
Reconstruct what you can from these secondary sources and provide them to the IRS if asked. You will have a harder time, but it is not automatic disqualification. For future years, take photos of receipts before filing, or scan them into a folder on your computer.
How to organize and store tax documents
Create a folder for each tax year and label it clearly—"2024 Tax Documents," "2023 Tax Documents." Inside, group documents by category: W-2s and 1099s, mortgage statements, charitable donations, medical expenses, business expenses. Keep the actual tax return (the Form 1040 and all schedules you filed) in the same folder.
Store paper documents in a cool, dry place away from direct sunlight. A filing cabinet, closet shelf, or plastic storage box works well. Do not store them in an attic or basement where temperature and humidity fluctuate, because moisture can destroy the documents.
A better long-term option is to scan documents and save them digitally. Use a smartphone scanner app or a desktop scanner to create PDF files. Name the files clearly ("2024_W2_Employer.pdf") and store them in a folder structure that mirrors your paper system. Save the digital copies to an external hard drive and also to a password-protected cloud service like Google Drive or Dropbox. This gives you a backup if your computer fails.
State tax records and special situations
Your state may have different audit windows than the federal IRS. Most states follow the federal three-year rule, but some allow longer. Check your state's tax agency website to confirm. If your state allows six years, keep records for six years even if the IRS only goes back three.
If you are self-employed and have employees, keep payroll records for at least four years. If you claimed the Earned Income Tax Credit (EITC), keep records for three years from the date you filed. If you received a refund and the IRS later claims you owed money instead, keep everything related to that return for as long as the dispute is open, plus three additional years.
Frequently Asked Questions
Can I throw away my tax return after the IRS accepts it?
No. The IRS accepting your return means it processed it, not that it will never audit it. Keep the return itself and all supporting documents for at least three years. After three years, you can discard them unless one of the exceptions applies to your situation.
Do I need to keep receipts if I have a credit card statement?
A credit card statement shows that you made a charge, but not what you bought. If the IRS audits, a statement alone may not be enough to prove a deduction. Keep the actual receipt or invoice showing what the charge was for. If you have lost the receipt, a credit card statement is better than nothing and can help you reconstruct the expense.
What if I filed my return late—does the three-year clock start from when I filed or from the original due date?
The three-year window starts from the date you actually filed, not the original due date. If you filed your 2023 return in October 2024 (seven months late), the three-year window runs from October 2024, not April 2024. Keep records until October 2027.
Should I keep digital copies or paper copies, or both?
Digital copies are easier to organize and take up no physical space. Paper copies are harder to lose to a computer crash. The best approach is to scan documents and save them in at least two places—an external hard drive and a cloud service. Keep the original paper documents for at least three years as a backup.
What happens if the IRS audits me and I cannot find a document?
You can reconstruct the expense using bank statements, credit card statements, cancelled checks, or written explanations. The IRS prefers original receipts, but will accept secondary evidence. You may face a longer audit process and may lose some deductions if you cannot prove them, but missing a single receipt does not automatically disqualify your entire return.