Keep tax returns for at least three years, and longer if you have business income or rental property
The Internal Revenue Service (IRS) can audit your return up to three years after you file, which is why three years is the standard minimum. However, the actual time you should keep documents depends on what's on your return and whether you have other income sources. If you underreported income by 25 percent or more, the IRS has six years. If you never filed a return for a year, there is no time limit. If you own a business or rental property, you should keep records longer because those audits can stretch further back.
The safest approach is to keep tax returns and all supporting documents (W-2s, 1099s, receipts, bank statements, mortgage interest statements) for at least seven years. This covers the three-year standard window plus the six-year window for substantial underreporting, and gives you a buffer if the IRS requests older records. After seven years, you can shred or delete most tax documents, though some records—like those tied to property you still own—should be kept longer.
Key Takeaways
- The IRS can audit returns filed within the past three years, so keep all tax documents for at least that long.
- If you own a business or rental property, keep records for seven years because business audits can go back further than standard returns.
- If you underreported income by a large amount, the IRS has six years to audit, so keeping documents for seven years covers that window.
- Keep records related to home purchases, property improvements, and investment accounts for as long as you own the asset, plus seven years after you sell.
- You can discard documents after the retention period ends, but keeping digital copies costs almost nothing and provides extra protection.
The three-year rule and when it doesn't explore
Three years is the standard statute of limitations for the IRS to audit a return. This means if you filed your 2022 tax return in April 2023, the IRS generally has until April 2026 to request an audit. After that date passes, the agency cannot go back and change that return based on new information it discovers.
This three-year window does not explore in every situation. If the IRS suspects you underreported your income by 25 percent or more—meaning you reported significantly less income than you actually earned—the statute of limitations extends to six years. If you never filed a return at all for a particular year, there is no time limit; the IRS can audit that year at any point. If you filed a fraudulent return, the IRS can also pursue it indefinitely, though this is rare and requires evidence of intentional deception.
Business owners and rental property: keep records longer
If you own a business or rental property, the three-year rule is less protective because audits of business returns often dig deeper into prior years. The IRS may request records going back five, six, or even seven years when examining business income, deductions, and depreciation. Rental property audits follow similar patterns because the agency wants to verify that you correctly calculated depreciation, maintenance deductions, and capital improvements.
For business and rental income, keeping records for seven years is standard practice among accountants and tax professionals. This covers the six-year window for substantial underreporting plus a one-year buffer. If you sell a rental property or business, keep all records related to that asset for seven years after the sale, because the IRS may audit the year you sold and want to verify your cost basis and calculation of gain or loss.
Documents to keep and how long
| Document Type | Minimum Time | Why |
|---|---|---|
| Tax returns (federal and state) | 7 years | Covers standard and extended audit windows |
| W-2s, 1099s, K-1s | 7 years | IRS receives copies; agency can cross-check |
| Receipts, invoices, bank statements | 7 years | Support deductions and income reported |
| Mortgage statements, property tax records | 7 years after sale | Verify home office deduction or capital gain calculation |
| Home improvement receipts | 7 years after sale | Increase cost basis and reduce capital gains tax |
| Investment purchase and sale records | 7 years after sale | Prove cost basis for capital gains calculation |
| Charitable donation receipts | 7 years | IRS may request proof of donations claimed |
| Business expense records | 7 years | Business audits often extend beyond three years |
Digital storage versus paper: what works
You do not need to keep paper copies of everything. The IRS accepts digital records—scanned documents, PDFs, photos of receipts—as long as the image is clear and legible. Many people photograph receipts with their phone, store them in a folder on their computer, and back them up to cloud storage. This approach takes up almost no physical space and is actually safer than paper, which can fade, get lost, or be destroyed by water or fire.
If you scan documents, make sure the image quality is high enough that all text and numbers are readable. A blurry photo of a receipt will not help you if the IRS asks for proof. For important documents like tax returns and W-2s, keep at least two copies in different locations—one at home and one in cloud storage, or one at home and one in a safe deposit box. This protects you if one copy is lost or damaged.
What to do when the retention period ends
Once seven years have passed since you filed a return, you can safely discard or delete the supporting documents for that year. Shred paper documents or use a document destruction service if you have a large volume. For digital files, delete them from your computer and empty your trash or recycle bin to may support they cannot be recovered.
However, there is no harm in keeping documents longer than seven years. Storage is cheap, and keeping old records does not increase your risk of audit. Some people keep all tax documents indefinitely, which is a reasonable choice if you have the space. The key is not to throw away documents too early—before the seven-year window closes—because that is when the IRS is most likely to request them if an audit occurs.
Special situations: when to keep records even longer
If you own a home, keep all records related to that home—purchase documents, improvement receipts, property tax statements—for seven years after you sell it. The IRS may audit the year of sale and ask for proof of your cost basis and the cost of improvements, which reduce your capital gains tax. The same rule applies to investment property, rental homes, and any other real estate you own.
If you claim a home office deduction, keep records of your home's purchase price, square footage, and any improvements for as long as you claim the deduction, plus seven years after you stop. If you have a business, keep payroll records, contractor payments, and equipment purchase records for seven years after the business closes. If you received a large inheritance or gift, keep documentation of its value for seven years, because the IRS may ask how you funded large deposits or purchases.
Frequently Asked Questions
Can the IRS audit a return more than three years old?
Yes, but only in specific situations. If you underreported income by 25 percent or more, the IRS has six years. If you never filed a return, there is no time limit. For most people with standard W-2 income and no major underreporting, three years is the practical limit, which is why keeping documents for seven years covers all common scenarios.
Do I need to keep receipts if I have the bank statement?
A bank statement alone may not be enough. The IRS wants to see what the expense was for, not just that money left your account. Keep the receipt or invoice along with the bank statement to show both that the transaction occurred and what it was for. This is especially important for business deductions and charitable donations.
What if I lost some documents from a year the IRS wants to audit?
Tell the IRS what you have and what you do not have. The agency understands that people lose documents. You can reconstruct some records—ask your bank for copies of old statements, contact vendors for duplicate invoices, or ask the IRS for copies of W-2s and 1099s they received. Missing documents do not automatically mean you lose the deduction, but you will need to explain what happened.
How long should I keep records if I am self-employed?
Keep all business records for seven years. This includes invoices, receipts, bank statements, payroll records, and equipment purchase documents. Business audits often go back further than standard returns, and the IRS may want to verify depreciation, home office deductions, and vehicle expenses over multiple years.
Do I need to keep state tax returns as long as federal returns?
Most states follow the same three-year rule as the federal government, but some states have longer windows. Check your state's tax agency website for the specific statute of limitations. To be safe, keep state and federal returns together for seven years, which covers both federal and most state audit windows.