IRS CP2000 Notice: What It Means and What to Do

The short version. A CP2000 comes from the Automated Underreporter program. It compares what employers, banks, and other payers reported against your return, and proposes a change where they do not match. It is a proposal you can respond to, not a bill you must pay and not a final determination. If you ignore it, it can become a notice of deficiency.

What a CP2000 is and is not

Treating a CP2000 as a final bill is the most common and most expensive mistake. It is a proposal with a response window.

A CP2000 is

A proposed change to your tax based on third party records.
A document you can agree with, partly agree with, or dispute.
A chance to fix a mismatch before it becomes permanent.
Often wrong or incomplete, since it does not know your full picture.

A CP2000 is not

A bill you are required to pay right now.
A formal notice of deficiency.
A final decision by the IRS.
Proof that you actually owe the proposed amount.

Why a CP2000 is often beatable

The Automated Underreporter program only sees the totals third parties reported. It does not see your cost basis, your deductions tied to that income, or income that was reported under a different category. Many CP2000 amounts shrink or disappear once you respond with the records the IRS did not have. The key is to respond on time with documentation, rather than ignore it.

What you can do about it

Respond within the window on the notice. Each step below is part of a normal CP2000 response that the IRS reviews.

Review the proposed change against your recordsCompare each line to what you actually reported and to your own documents.
Respond agreeing or disagreeing, with documentationSend a clear statement of what you dispute and the records that back it up.
Correct a real mistake if there was oneIf the income truly was missed, fix it and limit the penalties and interest.
Know what happens if you do not respondAn unanswered CP2000 can turn into a CP3219A notice of deficiency.

Do not pay a proposed change you may not owe.

A CP2000 is the IRS best guess from incomplete records. Send your case in for a free review and we will tell you whether the proposed change holds up and how to respond.

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Related IRS notices

Not your notice? Look yours up on the home page.

The legal basis

What this is grounded in

CP2000 comes from the Automated Underreporter program and is a proposal, not a statutory notice.
If unresolved, the IRS issues a statutory notice of deficiency under Internal Revenue Code section 6212.
The response process is explained in IRS Publication 5181.
If the income is not yours, report identity theft with Form 14039.
Official IRS explanation of this notice: Understanding your CP2000 series notice.

These are the controlling Internal Revenue Code sections and Internal Revenue Manual parts. Links go to the live IRS.gov pages so you can confirm every point yourself.

Free review

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Send the short version of what the CP2000 is proposing. We will tell you whether it holds up and whether you can respond yourself or should hand it to a professional.

Educational review only. We do not promise any outcome, and submitting this form does not create a professional relationship.

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Got an IRS CP2000 Notice? Here Is What It Means.