How Many Years Do You Keep Tax Returns? 3, 6, and 7-Year Rules

For most people, the answer to how many years to keep tax returns is three: that’s how long the IRS generally has to audit a return and assess additional tax. But several common situations stretch that window to six or seven years, a few remove the deadline entirely, and certain records — property purchase documents, nondeductible IRA contributions, foreign account statements — need to stay in your files far longer than any single return’s clock.

The Three-Year Default

Federal law gives the IRS three years from the date a return was filed to assess additional tax on it.1Office of the Law Revision Counsel. 26 USC 6501 Limitations on Assessment and Collection Once those three years pass, the agency generally can’t come back and tell you that you owe more for that year. That’s the baseline every retention decision starts from.

One timing quirk trips people up. If you file early, the IRS treats your return as filed on the due date, not the day you actually sent it in. A 2025 return mailed on February 20, 2026, is treated as filed on April 15, 2026, so the three-year window runs through April 15, 2029.2Internal Revenue Service. How Long Should I Keep Records? If you filed late, the clock starts from the actual filing date instead.

So for a return you filed accurately and on time, three years from the filing date (or the due date, if you filed early) covers your exposure.

Six Years If You Underreported Income

The window doubles to six years when a taxpayer leaves off more than 25% of the gross income shown on the return.3Office of the Law Revision Counsel. 26 USC 6501 Limitations on Assessment and Collection – Section: 6501(e) This isn’t triggered by small math errors. If your return shows $80,000 in gross income and you failed to report an additional $25,000 side payment, the omission crosses the 25% threshold and the six-year rule applies.

For a trade or business, “gross income” here means total receipts before subtracting the cost of goods sold, not net profit. Overstating your cost basis in property also counts as an omission of gross income under this rule.

The same six-year period applies when unreported income of more than $5,000 is tied to foreign financial assets that should have been disclosed on Form 8938.4Office of the Law Revision Counsel. 26 USC 6501 Limitations on Assessment and Collection – Section: 6501(e)(1)(A)(ii) If there’s any real chance you didn’t report everything, six years is the safer retention target.

Seven Years for Bad Debts and Worthless Securities

If you claimed a deduction for a bad debt or a loss on a security that became worthless, keep those records for at least seven years from the due date of the return for the year you took the deduction. The seven-year period is built into the refund statute and gives you a longer window to file a claim for credit or refund related to these losses.5Office of the Law Revision Counsel. 26 USC 6511 Limitations on Credit or Refund – Section: 6511(d)(1) Pinpointing the exact year a debt went bad or a stock became truly worthless is often difficult, and the extended period reflects that.

When the Clock Never Runs Out

Two situations remove the statute of limitations entirely. The IRS can assess additional tax at any time with no deadline:

If either applies to any of your past years, keep every record related to that year permanently. Filing a valid return for a previously unfiled year starts the normal three-year clock from that filing date.8Internal Revenue Service. Overview of Statute of Limitations on the Assessment of Tax – Section: Exception 1 No Return Filed

Records That Outlast Any Single Return

Some documents affect tax calculations years or even decades into the future. Their retention isn’t governed by the statute of limitations on the return where they first appeared, but by when you finally close out the underlying asset.

Property and Investment Basis

Every asset you buy has a cost basis that determines your taxable gain or loss when you eventually sell. Purchase records, closing statements, brokerage confirmations, and records of improvements need to stay in your files until the statute of limitations expires for the tax year in which you sell the asset.9Internal Revenue Service. Publication 583, Starting a Business and Keeping Records In practical terms, that means holding a home-purchase closing statement for the entire time you own the house, plus three more years after you file the return reporting the sale.

The same logic applies to property you received in a tax-free exchange. Records from both the old and new property must be kept until the limitations period expires for the year you sell the replacement property in a taxable transaction.9Internal Revenue Service. Publication 583, Starting a Business and Keeping Records A series of exchanges can push basis records back many years.

Inherited Property

When you inherit an asset, your basis is generally the fair market value on the date the original owner died, or the alternate valuation date if the estate elected it.10Internal Revenue Service. Publication 551, Basis of Assets If the estate filed a federal estate tax return, you may receive a Schedule A from Form 8971 showing the reported value. Otherwise, an appraisal at the date of death or the value used for state inheritance tax purposes establishes your starting point. Keep whichever document supports the stepped-up basis for as long as you own the inherited asset, plus three years after selling it.

Retirement Account Basis

Traditional IRA contributions you didn’t deduct create a cost basis in the account. When distributions come out later, that basis determines how much of each withdrawal is tax-free. The IRS says to keep Forms 8606, copies of the first page of each year’s return showing nondeductible contributions, Forms 5498 showing contribution information, and Forms 1099-R until you’ve taken all distributions from the account.11Internal Revenue Service. 2024 Instructions for Form 8606 For most people, that means keeping these records for the rest of their lives.

Roth IRA records follow similar logic. Tracking your total contributions proves that qualified distributions are tax-free and shows you’ve met the five-year holding period. Without that documentation, the IRS could treat distributions as taxable — a rare situation where losing records can turn tax-free money into a tax bill.

Foreign Financial Accounts

If you’re required to file a Report of Foreign Bank and Financial Accounts (FBAR), you must retain records showing the account name, number, institution, type, and maximum value for each account. These records must be kept for five years from the April 15th following the calendar year being reported.12FinCEN.gov. Record Keeping Requirements

Form 8938 adds its own considerations. Failing to report a specified foreign financial asset that generates more than $5,000 in unreported income extends the assessment window to six years, and skipping the form entirely means the statute of limitations for the related return doesn’t begin until three years after you eventually file it.13Internal Revenue Service. Instructions for Form 8938 Foreign account holders should plan on retention periods well past the standard three years.

If You Have Employees

Business owners with employees face a separate rule. Keep all employment tax records for at least four years after filing the fourth-quarter return for the year.14Internal Revenue Service. Employment Tax Recordkeeping That’s a year longer than the standard personal-return rule and easy to overlook. Records tied to qualified sick and family leave wages for leave taken after March 31, 2021, and to employee retention credit wages paid after June 30, 2021, carry a six-year retention requirement.

State Returns

State audit windows aren’t set by federal law and don’t always match the IRS timeline. The typical state assessment period runs three to four years from the filing date, but some states allow longer. The specifics vary, so check your state’s rule separately and retain state-related records for whichever period is longer.

What Counts as a Record

The return itself is a summary. The supporting documents prove the summary is accurate, and those are what an auditor actually asks for. The IRS requires you to keep any record that supports an item of income, deduction, or credit for as long as that item could be questioned.15Internal Revenue Service. Topic No. 305, Recordkeeping

  • Income documents: W-2s, all varieties of 1099 forms (interest, dividends, freelance payments, retirement distributions, government payments), K-1 schedules from partnerships or trusts, and records of digital asset transactions.16Internal Revenue Service. Gather Your Documents
  • Deduction records: receipts, bank statements, canceled checks, and invoices proving business expenses, medical costs, or charitable gifts.
  • Credit records: Form 1095-A and premium payment records if you claimed the premium tax credit through the Health Insurance Marketplace.15Internal Revenue Service. Topic No. 305, Recordkeeping
  • Basis records: closing statements, brokerage trade confirmations, and records of capital improvements.

During an audit, the burden of proof for deductions and credits falls on you.17Internal Revenue Service. Burden of Proof If you can’t produce documentation, the deduction is disallowed, and the resulting back taxes, interest, and possible penalties usually dwarf the cost of a few extra years of storage.

Storing and Destroying Records

Digital storage is the most practical option for most people. The IRS accepts electronic records as long as the storage system produces legible, readable copies and includes reasonable safeguards against unauthorized changes or data loss.18Internal Revenue Service. Revenue Procedure 97-22 Electronic Storage System Requirements Scan at a resolution where every number is clearly readable, use an organized folder structure, and keep at least one backup in a separate location. If you keep paper originals, a fireproof safe or locking filing cabinet handles fire and theft risk.

Once the retention period passes, destroy the records rather than just throwing them out. Tax documents contain Social Security numbers, bank account details, and income information. Shred paper with a cross-cut shredder. For electronic files, use a secure-delete tool that overwrites the data rather than moving it to a recycle bin.

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