Keep tax returns and supporting documents for at least three years
The Internal Revenue Service (IRS) generally has three years from the date you file to audit your return. This means you should hold onto your filed tax return, the documents you used to prepare it, and any records that back up the numbers on that return for a minimum of three years from the filing date.
The three-year window is the standard rule for most people and most situations. However, the IRS can go back further if they find a substantial error or suspect fraud. Keeping records longer than three years protects you if the IRS contacts you after that initial window closes.
Your "supporting documents" include W-2 forms, 1099 forms, receipts, invoices, bank statements, mortgage statements, charitable donation records, medical expense records, and anything else you used to calculate the numbers on your return. If you claimed a deduction or reported income, you need the paper trail that proves it.
Key Takeaways
- Keep your filed tax return and all documents used to prepare it for at least three years from the date you file.
- Supporting documents include W-2s, 1099s, receipts, bank statements, and any record that backs up a number on your return.
- If you underreported income by 25 percent or more, the IRS can audit you for up to six years, so keep records that long in those cases.
- If you claim a home office deduction or own rental property, keep records for at least six years because those deductions are audited more frequently.
- The IRS has no time limit if they suspect fraud, so keeping records indefinitely for major transactions is a reasonable precaution.
When to keep records for six years or longer
The three-year rule has exceptions. If you underreported your income by 25 percent or more, the IRS can go back six years. This applies even if the underreporting was unintentional. If you reported $40,000 in income but actually earned $50,000 or more, the six-year window applies.
Certain deductions and income sources draw more IRS attention and warrant longer storage. If you claim a home office deduction, keep records for at least six years. The same applies if you report rental income or losses, own a business, or claim business expenses. These categories are audited more often, and the IRS may look back further than three years.
If you received a large inheritance, sold real estate, or made significant investment transactions, keep the documents related to those events for at least six years. The basis calculations and timing of these transactions matter for tax purposes across multiple years.
What happens if you throw documents away too soon
If the IRS audits you and you cannot produce the documents that back up your return, you lose the deduction or income adjustment you claimed. The IRS will disallow it, and you will owe additional tax plus interest and penalties on the amount owed.
For example, if you claimed $5,000 in charitable donations but threw away your receipts after one year, and the IRS audits you in year two, you cannot prove the donations. The IRS removes the $5,000 deduction. Depending on your tax bracket, this could mean owing $1,000 to $2,000 in additional tax, plus interest dating back to the original filing date.
Penalties for not having records are separate from the tax owed. The IRS can assess accuracy-related penalties of 20 percent of the underpayment if you cannot substantiate your claims. This is on top of the tax and interest already owed.
How to organize and store tax documents
Create a folder or file for each tax year. Label it with the year and the date you filed. Inside, keep your filed return (the copy you received from your tax preparer or the confirmation from the IRS if you filed electronically), all W-2s and 1099s, receipts for deductions, bank statements showing income deposits, and any correspondence with the IRS.
Digital storage is acceptable. Scan receipts and documents into a computer folder, or use a cloud storage service like Google Drive or Dropbox. The IRS does not require original paper documents; a clear photograph or scan is sufficient. Make sure the image is legible and shows all relevant details (date, amount, payee, description).
For physical documents, store them in a cool, dry place away from direct sunlight. A filing cabinet, storage box, or safe works well. Do not store tax documents in a damp basement or attic where moisture can destroy them. If you use a safe deposit box, keep a copy at home as well, since you may need to access documents quickly if audited.
When you can safely discard old tax documents
After seven years, you can discard most tax documents from a standard return with no complications. This gives you a full four years beyond the three-year audit window as a safety margin. If you have not heard from the IRS by year seven, an audit is extremely unlikely.
However, keep records longer if any of these apply: you claimed a home office deduction, you reported business or rental income, you made large investment or real estate transactions, or you underreported income significantly. For these situations, hold documents for at least ten years.
Before you discard anything, shred it or burn it. Do not throw tax documents in the trash intact. They contain your Social Security number, bank account information, and other sensitive data that identity thieves can use. A cross-cut shredder is the safest method.
Records related to home and investment purchases
Keep documents related to the purchase of a home or investment property for as long as you own the property, plus at least three years after you sell it. These include the purchase deed, closing statement, mortgage documents, and records of any improvements or renovations you made.
When you sell a home, the cost basis (what you paid plus improvements) determines your capital gains tax. If you sell in year 10 and the IRS audits you in year 12, you will need the original purchase documents to prove your basis. Keeping them indefinitely for major assets is the safest approach.
The same rule applies to stocks, bonds, and other investments. Keep the purchase confirmation, cost basis documentation, and sale confirmation for at least three years after you sell. If you inherited investments, keep the valuation documents from the date of inheritance.
Frequently Asked Questions
Can I throw away my tax return after I file it electronically?
No. Keep a copy of your filed return even though you filed electronically. The IRS sends a confirmation number, not a copy of your actual return. If audited, you need the return itself to show what you reported. Print the confirmation page and keep it with your supporting documents for three years minimum.
Do I need to keep receipts if I use accounting software?
Yes. The software records the transaction, but the receipt is the proof. If audited, the IRS wants to see the original receipt showing the date, amount, payee, and what was purchased. The software entry alone is not sufficient. Keep both the digital record and the receipt.
What if the IRS contacts me after three years?
If they contact you, they are working within their authority to audit. This usually means they found a discrepancy or have reason to look further back. Gather all documents related to the years they are asking about and provide them. If you no longer have the documents, tell them that directly—do not make up records.
Can I store tax documents in the cloud instead of paper?
Yes. Scanned documents stored in cloud services like Google Drive, OneDrive, or Dropbox are acceptable. Make sure the scans are clear and legible, showing all relevant details. Keep a backup copy on an external hard drive as well, in case the cloud service becomes unavailable or your account is compromised.
How long should I keep records if I own a business?
Keep business tax records for at least six years. This includes income records, expense receipts, payroll documents, and bank statements. The IRS audits business returns more frequently and may look back further than three years. If you sold the business, keep records for at least three years after the sale.