A CP2000 is not a bill. It is the IRS telling you that third-party information (a W-2, 1099, brokerage proceeds, a retirement distribution, payment-card reporting) did not match your filed return, and proposing changes. Ignore it or answer it weakly and the case can move toward a Statutory Notice of Deficiency (often CP3219A) with its own Tax Court deadline.
What this free playbook covers
- What a CP2000 actually is, and why it is neither a final bill nor a harmless form letter.
- The six-step response checklist: identify the exact notice and tax year, compare the IRS records to your return, gather proof by issue, choose agree / partly agree / disagree, send the response with proof of delivery, and track the next IRS reply.
- A worked example matching IRS line items to a return item by item.
- The deadline pressure: how an unresolved CP2000 leads to a deficiency notice and the Tax Court clock under IRC sec. 6213.
- The joint-return signature rule and other common CP2000 traps.
Who it is for
Taxpayers who received a CP2000 or Letter 2030 proposing changes after IRS third-party information did not match the filed return.
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This guide is for information only. It is not legal or tax advice, it does not create a client relationship, and no specific outcome is guaranteed.
Want a second set of eyes on your CP2000?
Noah Green, CPA, CFE, reviews IRS notice problems with a tax-resolution posture: match the notice to the law, organize the response, and avoid promising an IRS result before the facts and documents are reviewed. Use the Sheepdog Tax Resolution contact form to reach out.
Prepared by Noah Green, CPA, CFE