Keep tax records for at least three to seven years, depending on the type of record and whether you reported income correctly

The Internal Revenue Service (IRS) sets the minimum time you must hold onto tax documents. The most common rule is three years from the date you filed your return or the return's due date, whichever is later. However, this changes if you underreported income, claimed deductions you shouldn't have, or have no records to back up what you reported. In those cases, the IRS can look back six years. If you did not file a return at all, there is no time limit — the IRS can pursue you indefinitely.

The safest approach is to keep records for seven years. This covers the standard three-year window plus the six-year window for underreported income, and it gives you a buffer if the IRS questions anything. Many tax professionals recommend this timeline for personal returns. For business records, the rules are stricter and the timeline is longer.

Key Takeaways

  • The IRS standard is three years from the filing date, but six years if you underreported income by more than 25 percent.
  • Keep records for seven years if you want a safety margin that covers both the three-year and six-year windows.
  • Records include receipts, invoices, bank statements, mortgage interest statements, charitable donation receipts, and anything that proves what you reported on your return.
  • If you did not file a return, the IRS has no time limit to assess taxes owed.
  • Business records must be kept longer than personal tax records, typically six to seven years at minimum.

What counts as a tax record you must keep

A tax record is anything that proves what you reported on your return. This includes receipts, invoices, bank statements, credit card statements, cancelled checks, and written documentation of deductions or income. If you claimed a home office deduction, keep photos and measurements. If you claimed charitable donations, keep the receipt from the charity and your bank record showing the transfer. If you claimed medical expenses, keep the bills and proof of payment.

For income, keep W-2 forms from employers, 1099 forms for freelance or investment income, and bank statements showing deposits. For deductions, keep anything that shows you spent the money: receipts, invoices, credit card statements, and mileage logs if you claimed vehicle expenses. The IRS does not require you to keep the original return itself, but keeping a copy is wise — it shows what you reported and when.

Digital records count. If you bank online and read statements as PDFs, those are acceptable. If you use accounting software that stores receipts as images, that works too. The key is that you can produce the record if the IRS asks, and that it clearly shows the date, amount, and what the money was for.

The three-year rule for most returns

The three-year window is the standard. It runs from the later of two dates: the date you filed your return, or the return's due date (usually April 15 for personal returns). If you filed on time in April 2023, the three-year window closes in April 2026. If you filed late in August 2023, the window closes in August 2026. The IRS can open an audit anytime within this window.

This rule assumes you reported your income correctly and claimed only deductions you were may have access to to claim. If the IRS finds an error during this window, they can assess additional tax, penalties, and interest. After three years, they generally cannot go back further unless they find evidence of fraud or a substantial underreporting of income.

The six-year rule for underreported income

If you underreported your income by more than 25 percent, the IRS can look back six years instead of three. This means if you filed in April 2023 and underreported income, the IRS can audit you until April 2029. The 25 percent threshold is measured against the income you should have reported, not the income you did report.

Example: If you should have reported $40,000 in income but reported only $30,000, you underreported by $10,000, which is 25 percent of $40,000. This triggers the six-year rule. The IRS does not have to prove you did this intentionally — negligence or a mistake is enough to extend the window.

This is why keeping records for six or seven years is safer than three. If you are unsure whether you reported everything correctly, the longer timeline protects you.

No time limit if you did not file a return

If you did not file a tax return in a year when you were required to, the IRS has no important date to assess taxes owed. They can come after you five years later, ten years later, or longer. This is one of the most serious situations in tax law because the statute of limitations does not explore.

If you owe back taxes from years you did not file, the IRS will eventually find out — through employer records, bank deposits, or third-party reports. When they do, they can demand payment plus penalties and interest dating back to the original due date. The longer you wait to file, the larger the debt grows.

How long to keep business records

Business records must be kept longer than personal tax records. The IRS recommends keeping business records for at least six to seven years, and some records indefinitely. This includes income records, expense receipts, payroll records, invoices sent to customers, and records of assets you own.

Payroll records are especially important. If you had employees, keep payroll records, W-2 copies, and 1099 copies for at least six years. If you claimed depreciation on equipment or property, keep records of the purchase date, cost, and depreciation schedule for as long as you own the asset, plus six years after you sell it. If you took a business loan, keep loan documents and payment records for six years after the loan is paid off.

State tax rules may require longer retention. Some states require seven years or more. If you operate in multiple states, follow the longest timeline required by any state where you do business.

How to organize and store records safely

Organize records by year and category: income, deductions, business expenses, medical expenses, charitable donations, and so on. This makes it much faster to find something if the IRS asks. Use a filing cabinet, a storage box, or a digital system — whatever you will actually use and maintain.

For digital storage, use a service with backup and security: cloud storage like Google Drive or Dropbox, or accounting software like QuickBooks or FreshBooks. Take photos of receipts before throwing them away, or scan them to PDF. Write the date and category on the back of the photo or in the file name so you can find it later.

Keep originals of important documents: W-2s, 1099s, mortgage statements, and receipts for large purchases. Digital copies are fine for most things, but originals are safer if the IRS ever asks to see them in person. Store originals in a safe place — a fireproof box, a safe deposit box, or a locked drawer. Do not keep them in a place where they could be damaged by water or fire.

Frequently Asked Questions

Can I throw away records after three years?

Only if you are certain you reported everything correctly and have no reason to think the IRS will question your return. If you underreported income, claimed deductions you are unsure about, or want to be safe, keep records for six or seven years. After that, you can generally discard them.

What if I lost my receipts?

If you lost receipts but still have bank or credit card statements showing the transaction, those statements can serve as proof. Write a note explaining what the expense was for and attach it to the statement. The IRS understands that original receipts get lost. Bank records are often enough to back up what you claimed.

Do I need to keep the tax return itself?

You do not have to keep the original return, but keeping a copy is smart. It shows what you reported and when you filed. If the IRS ever questions something, you can refer back to your copy to see exactly what you claimed. Keep a copy for at least three to seven years, along with your supporting documents.

How long do I keep records if I file an amended return?

Keep records for three years from the date you filed the amended return, or six years if the amendment involved underreported income. The clock resets when you file the amendment. If you filed an amended return in 2024, keep records until 2027 at minimum.

What if the IRS is already auditing me?

Do not throw away any records while an audit is open. Keep everything the IRS has asked for, plus anything related to the years under review. Once the audit closes and any appeals are finished, you can follow the standard three to seven year rule. If the IRS sends you a letter saying the audit is closed, keep that letter with your records.