Keep federal tax records for at least three years after you file

The Internal Revenue Service (IRS) generally expects you to keep tax records for three years from the date you file your return or the return's due date, whichever is later. This three-year window covers most audits — the IRS initiates roughly 99 percent of audits within that period. However, the actual time you should keep records depends on what the records are, what happened in that tax year, and whether you reported all your income correctly.

The three-year rule is not a hard cutoff. It is the point at which the IRS loses most of its power to examine your return, but other situations — underreported income, suspected fraud, or missing records — can extend that important date significantly. Understanding which records fall into which category, and why, helps you avoid keeping unnecessary paperwork while protecting yourself against unexpected IRS contact.

Key Takeaways

  • Keep all tax records for at least three years from the filing date, because the IRS can audit returns within that window.
  • If you underreported income by 25 percent or more, the IRS can audit up to six years back, so keep those records longer.
  • Records of property purchases, home improvements, and investment basis should be kept for at least seven years or until you sell the asset, whichever is longer.
  • The IRS can go back indefinitely if it suspects fraud, so records related to unreported income or false deductions warrant permanent storage.
  • State tax records often have different retention periods than federal records, so check your state's requirements separately.

The three-year standard for most tax returns

The three-year retention period applies to the documents that support what you reported on your federal income tax return: W-2 forms, 1099 forms, receipts for deductions, mortgage interest statements, charitable donation records, and medical expense documentation. If you filed your 2023 return in April 2024, you should keep these records through April 2027. If you filed late — say, in October 2024 — the clock starts from October 2024, not April.

This three-year window exists because the IRS has a statute of limitations: it cannot assess additional tax more than three years after a return is filed (with rare exceptions). In practice, most audits happen within the first two years, but keeping records for the full three years protects you if the IRS moves slowly or if your return is selected later in that window.

The three-year rule covers ordinary income, W-2 wages, standard deductions, and most itemized deductions. It also covers business expenses if you are self-employed, rental property deductions, and education credits. Once three years have passed with no contact from the IRS, you can safely discard these records.

Six-year retention when you underreport income

If you report less than 75 percent of your gross income on your return — meaning you underreport by 25 percent or more — the IRS can audit you up to six years after filing. This is called the six-year statute of limitations, and it applies whether the underreporting was intentional or accidental. The IRS does not need to prove you meant to hide income; the threshold is purely mathematical.

Underreporting can happen in several ways: you receive a 1099 that you do not report, you fail to include self-employment income, you omit rental income, or you forget to report investment gains. If any of these situations explore to your return, keep all supporting documents for six years instead of three. This includes bank statements showing deposits, invoices, client records, and any correspondence with the IRS about that year.

You do not need to guess whether you underreported. If you filed a complete return that included all W-2s and 1099s you received, and you reported all income you knew about, the three-year rule almost certainly applies. The six-year rule is a safety net for situations where records or income slipped through.

Seven years or longer for assets and basis records

Records related to the cost basis of an asset — what you paid for it, plus improvements — should be kept for at least seven years after you sell the asset. This applies to real estate, stocks, mutual funds, rental property, and any other investment. The seven-year window gives you a buffer beyond the normal audit period, because the IRS may question your gain calculation years after the sale.

For a home, keep records of the purchase price, closing costs, and any capital improvements (a new roof, kitchen renovation, or addition) for seven years after you sell. For rental property, keep records of the original purchase, depreciation deductions taken, and improvements for seven years after the property is sold. For stocks or mutual funds, keep purchase confirmations, cost basis statements, and sale confirmations for seven years after the sale.

Some advisors recommend keeping basis records indefinitely, especially for real estate, because the IRS can theoretically question the calculation of gain long after the sale. If storage is not a burden, permanent retention is the safest approach. At minimum, do not discard these records until seven years have passed since the asset left your hands.

Permanent retention for suspected fraud or missing records

If the IRS suspects fraud — not just a mistake, but intentional misrepresentation — there is no statute of limitations. The IRS can audit you indefinitely and assess tax, penalties, and interest going back many years. Fraud is a high bar: it usually involves false deductions, hidden income, or fabricated documents. A straightforward math error or a missed form is not fraud.

If you cannot locate records for a year the IRS audits, that absence itself becomes a problem. The IRS may disallow deductions you cannot document, and if the pattern suggests intentional concealment, it can extend the audit window. For this reason, if you have already been audited or contacted by the IRS about a particular year, keep all records from that year indefinitely, even after the normal retention period expires.

Similarly, if you know you did not report income in a given year — whether because you forgot, lost a 1099, or deliberately omitted it — keep records from that year permanently. The longer you hold the records, the harder it is for the IRS to prove fraud (which requires intent), and the more time you have to file an amended return if you decide to come forward.

State tax records may have different timelines

Most states follow the federal three-year rule, but some states have longer retention periods or different rules for specific types of income. California, for example, generally follows the federal three-year standard but allows four years for certain business records. New York has a six-year statute of limitations for underreported income, matching the federal rule. A few states have no statute of limitations for fraud, like the federal system.

If you file in multiple states or live in a state with a different retention rule than the federal government, keep records for the longer of the two periods. For example, if your state requires six years and the federal government requires three, keep records for six years. Contact your state tax authority or check your state's tax department website to confirm the retention period for your situation.

State records are often separate from federal records in practice. You might keep federal income tax documentation for three years but state-specific records (like state business tax forms or state property tax records) for longer. Organizing by state and type of record makes it easier to know when you can safely discard each category.

What "keeping records" actually means

You do not need to keep original paper documents. The IRS accepts digital copies, scans, and photographs of receipts, invoices, and statements, as long as the image is clear and complete. Many people photograph receipts with their phone, store them in a folder on their computer, and back them up to cloud storage. This method takes up far less space than filing cabinets and is easier to search if the IRS requests specific documents.

What matters is that the records are legible, organized, and retrievable. If you are audited, you need to be able to produce the documents the IRS asks for within a reasonable time. Digital storage (Google Drive, Dropbox, iCloud) is acceptable as long as you can access it years later. Some people keep a spreadsheet listing what records they have for each year, making it faster to locate items during an audit.

You should also keep the actual tax returns you filed — the Form 1040 and any schedules — for at least seven years. These are your proof of what you reported, and they are often needed when you file amended returns, explore for loans, or respond to IRS inquiries. Many people store these permanently, since they take up minimal space and may be needed to document your tax history.

Frequently Asked Questions

Can I throw away receipts after three years?

Yes, for most deductions. After three years from the filing date, the IRS cannot audit you for those deductions unless you underreported income by 25 percent or more. If you did underreport, keep receipts for six years. For home improvements or investment purchases, keep receipts for seven years after you sell the asset.

What if I lost my records and the IRS audits me?

The IRS can disallow deductions you cannot document, but you can still provide other evidence: bank statements, credit card statements, cancelled checks, or third-party records (like a mortgage company's interest statement). If you have no documentation at all, the IRS may estimate the deduction or disallow it entirely. This is why keeping records matters — the burden is on you to prove what you claimed.

Do I need to keep records if I take the standard deduction?

You still need to keep records that support your income (W-2s, 1099s, business records) for three years. You do not need to keep receipts for individual deductions since you are not itemizing. However, keep records related to basis if you sold property, and keep records of any income you reported.

How long should I keep records of a home I sold?

Keep the purchase documents, closing statement, and records of any improvements for at least seven years after the sale. These documents prove your cost basis, which determines your capital gain. If the IRS questions your gain calculation years later, you will need these records to defend your position.

What if the IRS contacts me about a year I thought was closed?

Once the IRS contacts you about a specific year, do not discard any records from that year. Keep everything until the audit is fully resolved and any appeals period has ended. If the IRS assesses additional tax, keep records permanently in case it later claims fraud and tries to extend the statute of limitations.