IRS CP2000 Notice — "We Received Information That Doesn't Match Your Return"

What this means: The IRS received income information (W-2s, 1099s, K-1s) from third parties that doesn't match what you reported on your tax return. This is a proposed adjustment — not a final bill — but you have only 60 days to respond before the IRS assesses the additional tax automatically.

What Is a CP2000 Notice?

CP2000 is the most common IRS notice. It's generated when the IRS's Automated Underreporter (AUR) system detects a mismatch between what you reported and what employers, banks, brokers, or other payers reported to the IRS. Common triggers include unreported 1099 income, missing W-2s, or incorrect basis on stock sales.

Your Response Options

1. Agree with the changes: Sign the response form and pay the proposed amount (or request a payment plan)
2. Partially agree: Accept some adjustments but dispute others with documentation
3. Fully disagree: Provide records proving the IRS information is incorrect or already reported
4. Need more time: Call the number on your notice to request an extension

Why You Received This Notice

What is an IRS CP2000 notice?

A CP2000 notice means the IRS received information (from employers, banks, or other sources) that doesn't match what you reported on your tax return. It's a proposed adjustment — not a bill yet — but you must respond within 60 days or the IRS will assess the additional tax.

How long do I have to respond to a CP2000?

You have 60 days from the date on the notice to respond. If you agree with the changes, you can sign and return the response form with payment. If you disagree, you must provide documentation supporting your position within the deadline.

What happens if I ignore a CP2000 notice?

If you don't respond within 60 days, the IRS will assume you agree with the proposed changes and issue a Statutory Notice of Deficiency (90-day letter). After that, the tax becomes legally assessed, and you'll owe the full amount plus penalties and interest.

Can I dispute a CP2000 if the IRS is wrong?

Yes — many CP2000 notices contain errors or are based on incomplete information. Common reasons to dispute include: the income was already reported elsewhere, you have deductions or credits that offset the income, or the third-party report was incorrect. A tax professional can help you build your response.