What Documents Should You Gather After Receiving an IRS Notice?

The documents you need to gather depend entirely on what the IRS notice is about. Before pulling anything together, read the notice carefully to understand what the IRS is asking — whether it is verifying income, questioning a deduction, requesting proof of a payment, or something else.

Once you understand what the notice is addressing, you can identify the relevant records. Gathering more than you need is fine; responding without the right documentation is not.

Always Start With These

• The IRS notice itself, including the notice number and any reference numbers
• The tax return for the year the notice references (federal and state)
• Any prior correspondence with the IRS about the same issue
• Proof of any payments made to the IRS for the year in question

For Notices About Income (CP2000 and Similar)

CP2000 notices are among the most common. The IRS received information returns (W-2s, 1099s) that it believes do not match what was reported on your return. Documents to gather:

• All W-2s and 1099s for the year in question
• Bank statements showing deposits, to verify what income was received
• Records showing that the income in question was already reported (perhaps under a different line or business name)
• If the income was not taxable (a return of capital, a gift, a loan repayment), documentation supporting that characterization

For Notices About Deductions or Credits

• Receipts, invoices, and bank statements supporting the deductions claimed
• For home office deductions: documentation of the square footage and exclusive business use
• For vehicle deductions: mileage logs and records of business use
• For charitable contributions: acknowledgment letters from the organizations
• For business expenses: records showing the business purpose of each expense

For Balance Due Notices

• Proof of any payments already made (bank statements, IRS payment confirmation numbers)
• Records of estimated tax payments made during the year
• If you believe the balance is incorrect: the return and supporting documents showing what was reported and paid

For Audit Notices

Audit notices typically specify which items on the return are being examined. Gather all records related to those specific items. For a business audit, this typically includes:

• Complete financial statements for the year (profit and loss, balance sheet)
• Bank statements for all business accounts
• Receipts and invoices for expenses claimed
• Payroll records if payroll is involved
• Asset purchase records for any depreciation claimed

For audit notices, involving a CPA or tax professional before responding is generally advisable. The scope of an audit can expand if the initial response is not handled carefully.

Practical Tips

• Keep copies of everything you send to the IRS — send originals only if specifically required
• Send responses by certified mail with return receipt so you have proof of delivery and the date
• Do not send more documentation than the notice requests — additional documents can raise additional questions
• Include the notice number and your taxpayer identification number on all correspondence