How long the IRS requires you to keep tax records

The Internal Revenue Service (IRS) requires you to keep tax returns and supporting documents for at least three years from the date you filed or the due date of the return, whichever is later. This three-year window is the standard period during which the IRS can audit your return and request documentation to verify the income, deductions, and credits you claimed.

However, three years is not always the final answer. The IRS can go back further if they suspect underreporting of income or other issues. If you underreported your income by 25 percent or more, the IRS has six years to audit you instead of three. If you filed a fraudulent return or did not file at all, there is no time limit — the IRS can pursue the matter indefinitely.

State tax authorities often follow similar timelines, though some states have their own rules. Check your state's tax agency website for specific requirements, as they may differ from federal rules.

Key Takeaways

  • Keep tax returns and all supporting documents for at least three years from the filing date or due date, whichever is later.
  • The IRS can go back six years if they believe you underreported income by 25 percent or more.
  • Supporting documents include W-2s, 1099s, receipts, invoices, bank statements, and anything else that proves the numbers on your return.
  • Some records related to property, investments, or retirement accounts should be kept longer — often until you sell the asset or close the account, plus three additional years.
  • State tax rules may differ from federal rules, so verify your state's requirements separately.

What counts as supporting documents you must keep

Supporting documents are the receipts, statements, and records that back up the numbers on your tax return. If you claim a deduction for home office expenses, you need the receipts and records showing what you spent. If you report investment income, you need the 1099 forms and statements from your broker. If you claim charitable donations, you need written acknowledgment from the charity.

Common documents to keep include W-2s and 1099s from employers and clients, receipts for business expenses, medical bills and insurance statements, property tax records, mortgage interest statements, charitable donation receipts, investment statements and trade confirmations, and bank statements that show deposits or transfers related to your return. The rule is straightforward: if a number appears on your return, you should have a document that proves it.

Digital copies count. You can scan receipts and statements and store them electronically, as long as the image is clear and legible. Many people photograph receipts with their phone or use document scanning apps. The IRS does not require original paper documents, though keeping originals is safer if you are ever audited.

When to keep records longer than three years

Certain records should be kept much longer than three years because they relate to assets or accounts that span multiple years or decades. If you own a home, keep the purchase documents, closing statements, and receipts for any improvements or repairs for as long as you own the home, plus three years after you sell it. The IRS uses these records to calculate your cost basis — the original price plus improvements — which determines how much capital gains tax you owe when you sell.

For investments, keep brokerage statements, trade confirmations, and dividend records for as long as you own the investment, plus three years after you sell it. If you inherit property or investments, keep the valuation documents from the date of inheritance indefinitely, since they establish your cost basis for tax purposes.

If you contribute to a retirement account like an IRA or 401(k), keep the contribution records and annual statements for as long as the account exists, plus three years after you close it or take your final distribution. The same applies to education savings accounts like 529 plans. These records prove how much you contributed with after-tax dollars, which affects how much of your withdrawal is taxable.

What happens if you cannot find a document

If the IRS audits you and you cannot locate a receipt or statement, it does not automatically mean you lose the deduction. You can reconstruct records using bank statements, credit card statements, or other evidence that shows you made the expense. For example, if you cannot find a receipt for a business meal, a credit card statement showing the charge to a restaurant on a specific date can serve as partial proof.

However, reconstruction is harder and takes more time than having the original document. The IRS is more likely to accept a clear receipt than a reconstructed record. If you are missing documents, gather whatever evidence you do have — bank statements, emails confirming the transaction, invoices from the vendor, or photographs — and organize them by date and category.

The best approach is to keep documents as you go. Set up a filing system, whether physical or digital, and store receipts and statements as soon as you receive them. Many accounting software programs and apps can photograph and organize receipts automatically, which reduces the risk of losing documentation.

How to organize and store your records

Create a folder for each tax year and place all documents related to that year inside it. Within each year's folder, organize by category: income documents (W-2s, 1099s), business expenses, medical expenses, charitable donations, investment statements, and property records. Label each document with the date and what it is.

For digital storage, use a cloud service like Google Drive, Dropbox, or OneDrive so your records are backed up and accessible from any device. Take clear photographs or scans of paper documents — make sure text is legible and all four corners of the document are visible. Name your files clearly: "2024_W2_Employer_Name" is better than "Document_1".

Keep a separate list of where each document is stored and what years it covers. This takes only a few minutes per year but saves hours if you need to find something quickly during an audit. Some people use a spreadsheet with columns for document type, date, amount, and file location.

Different rules for business owners and self-employed people

If you are self-employed or own a business, the three-year rule still applies, but you have more documents to track. Keep all invoices you issued to clients, receipts for business expenses, payroll records if you have employees, bank statements for your business account, and records of any business assets you purchased. The IRS scrutinizes business returns more closely than individual returns, so documentation is especially important.

Payroll records must be kept for at least four years if you have employees. These include timesheets, wage records, tax withholding forms (W-4s), and records of any unemployment insurance or workers' compensation payments. State labor departments may have their own requirements, which can be longer than four years.

If you claim depreciation on business equipment or property, keep the purchase receipts and any appraisals for the life of the asset, plus three years after you sell or dispose of it. Depreciation records are tied to your cost basis, just like home improvements, so they affect your taxes in multiple years.

State and local tax record requirements

Most states follow the federal three-year rule, but some require longer. A few states require you to keep records for four or five years, or indefinitely for certain types of documents. Some states have different rules for different types of income or deductions.

If you file taxes in more than one state — for example, if you worked in one state and lived in another, or if you own rental property in a different state — keep records according to the longest requirement among all the states where you file. It is simpler to keep everything for the longest period than to track different timelines for different states.

Contact your state's department of revenue or tax authority to confirm the specific requirements for your situation. Many state websites publish record retention guidelines, and you can also call their taxpayer information line with questions.

Frequently Asked Questions

Can I throw away my tax return after three years?

You can discard the actual tax return form after three years if there are no special circumstances, but keep all supporting documents for the full three years. If your return involves property, investments, or business assets, keep those related documents longer. When in doubt, keep everything for seven years — it costs nothing to store documents digitally and provides extra protection.

What if I filed an amended return?

Keep records for three years from the date you filed the amended return, not the original return date. If you filed an amended return in year four, the three-year clock restarts from that filing date. The IRS can audit either the original or amended return during the three-year window from the amended filing date.

Do I need to keep receipts for small purchases under a certain amount?

The IRS does not have a dollar threshold below which receipts are optional. However, for business expenses, you generally need a receipt for any single purchase over $75. For other deductions like charitable donations, the rules vary by type — some require written acknowledgment from the charity regardless of amount. Keep receipts for all expenses you claim, regardless of size.

How should I destroy old documents after the retention period ends?

Shred paper documents or burn them to prevent identity theft, since tax returns and supporting documents contain sensitive information like Social Security numbers and bank account details. For digital files, use find deletion software that overwrites the data rather than straightforward deleting it. Never throw tax documents in the trash whole or unshredded.

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

If the IRS opens an audit for a year outside the normal three-year window, they must have a reason — usually suspicion of substantial underreporting or fraud. Gather whatever documents you still have and contact a tax professional or the IRS directly to understand what they are investigating. You may be able to reconstruct records even if you no longer have originals.