Keep personal tax records for at least three years, and longer if you have business income or investments

The Internal Revenue Service (IRS) can audit your return for three years after you file, which is why three years is the standard minimum. If you underreported your income by 25 percent or more, the IRS can go back six years. If you did not file a return or filed a fraudulent one, there is no time limit — the IRS can audit you indefinitely. For most people with W-2 income and standard deductions, three years covers the risk.

But your situation may require you to hold records longer. If you claim deductions tied to property — a home office, rental income, or a business — you should keep those records for at least seven years after you file, because depreciation and basis questions can surface years later. If you have investment accounts, keep brokerage statements and purchase records for at least three years after you sell the asset, since the IRS may ask about your cost basis. State tax agencies sometimes have different rules, so check your state's requirements if you live in a state with income tax.

Key Takeaways

  • The IRS standard audit window is three years, so keep tax returns and supporting documents for at least that long.
  • If you claim business deductions, home office deductions, or depreciation, keep those records for seven years.
  • Keep investment purchase records and brokerage statements for at least three years after you sell, to prove your cost basis.
  • Some states have longer retention rules than the federal IRS, so verify your state's requirements if you pay state income tax.
  • After the retention period ends, shred documents that contain Social Security numbers, account numbers, or other sensitive data.

What documents to keep for three years

For a standard tax return with W-2 income, keep your filed return itself, all W-2 forms from your employers, 1099 forms for interest or dividends, receipts for charitable donations, and medical expense records if you itemized deductions. Keep bank statements that show the deposits matching your reported income, and credit card statements if they document deductible expenses like business meals or medical costs.

If you paid estimated taxes or received a refund, keep the payment confirmations and the notice the IRS sent you about the refund. If you received a letter from the IRS about your return — even a routine notice — keep that too, along with any correspondence you sent back. These documents prove you filed, what you reported, and that you responded to any IRS contact.

What documents to keep for seven years

If you own a home and claim a home office deduction, keep the square footage documentation, photos of the office space, utility bills, and records of any improvements you made to that room. If you rent out a property, keep the lease, all repair and maintenance receipts, property tax bills, insurance statements, and depreciation schedules. The IRS can question depreciation claims years after you file, so this paper trail matters.

If you are self-employed or run a business, keep invoices, receipts, mileage logs, and payroll records for seven years. The IRS uses these to verify that your reported income and deductions match the actual business activity. If you hire contractors, keep their W-9 forms and 1099s you issued to them. If you take a home office deduction as a business owner, the seven-year rule applies to that as well.

Investment records and cost basis documentation

When you buy stocks, bonds, mutual funds, or other investments, the IRS needs to know your cost basis — what you paid for them — to calculate whether you have a gain or loss when you sell. Keep the confirmation statement from your broker showing the purchase price, date, and number of shares. Keep the sale confirmation as well, showing the proceeds and date sold.

If you reinvested dividends or made additional purchases over time, keep all of those confirmations too, because they affect your total basis. If you inherited investments, keep the valuation statement from the estate showing the stepped-up basis as of the date of death. Keep these records for at least three years after you sell the investment, though many people keep them indefinitely because they are small and space is cheap.

State tax record requirements

Most states that have income tax follow the federal three-year rule, but some are stricter. California, for example, generally allows a four-year audit window. New York allows three years but can go back six years if you underreported income by 25 percent, matching the federal rule. If you file in multiple states because you moved or worked in more than one state during the year, check each state's rules.

If you do not pay state income tax — because you live in Florida, Texas, Washington, or another no-income-tax state — you only need to follow federal rules. But if you have income from a state where you do not live, that state may still tax it, so verify before you throw records away. Your state's department of revenue website lists the retention period in their tax guide.

How to organize and store tax records

Create a folder for each tax year and label it clearly with the year. Inside, organize by category: W-2s and 1099s together, charitable donations together, medical expenses together, business expenses together. Keep the filed return itself in the front of the folder so you can find it quickly if the IRS contacts you.

Store the folders in a cool, dry place — a filing cabinet, a plastic bin in a closet, or a safe deposit box. Do not store tax documents in a basement or attic where moisture can damage them. If you keep digital copies, scan the documents and save them to an external hard drive or cloud storage that you back up regularly. Many people keep both paper and digital copies for the first three years, then move to digital-only after that.

When and how to destroy old records

Once the retention period has passed, shred the documents rather than throwing them in the trash. Tax documents contain your Social Security number, account numbers, and other information that identity thieves can use. A cross-cut shredder is safer than a strip shredder because it cuts paper into smaller pieces that are harder to reassemble.

If you have a large volume of old records, some document destruction services will shred them for you and provide a certificate of destruction. This is useful if you are cleaning out a home office or closing a business. For most households, a home shredder and a trash day every few months is sufficient. Do not burn tax documents indoors, and check your local rules about burning outdoors — many areas restrict it.

Frequently Asked Questions

What if the IRS contacts me about a return from five years ago?

You should still have those records if you kept them for three years after filing, which would have been two years ago. If you no longer have them, tell the IRS that and ask what they need. The IRS often has copies of W-2s and 1099s on file, so they may not need your originals. If you cannot produce records, the IRS can estimate your income based on other evidence, which may not be in your favor.

Do I need to keep receipts if I have credit card statements?

Credit card statements show that you made a charge, but they do not always show what you bought. If you claim a business meal deduction, the statement shows the restaurant and amount, but the IRS wants to know who you met with and the business purpose. Keep the receipt from the restaurant along with the statement. For charitable donations, the statement shows the payment but not the charity's name or the amount — keep the charity's receipt or letter of acknowledgment.

Can I throw away records after I file my return?

No. The three-year window starts when you file, not when you finish preparing the return. If you file on April 15, the three-year window closes on April 15 three years later. If you file an extension and submit your return on October 15, the window closes on October 15 three years later. Keep records until that date passes.

What about old tax returns I did not file?

If you did not file a return in a past year, there is no statute of limitations — the IRS can contact you about it at any time. Keep any documents related to that year indefinitely, or at least until you file a return for it. If you are considering filing old returns, a tax professional can advise you on which years to file and what records you will need.

Do I need to keep records for a return I amended?

Yes. Keep records for both the original return and the amended return. The three-year window runs from the date you filed the amended return, not the original. If you filed an amended return two years ago, you still have one year left to keep those records. Keep the amended return itself, the original return, and all supporting documents for both.