Notice

Notice CP2000

Last reviewed: May 2026

Notice CP2000 proposes changes because IRS information matching does not line up with what was reported on the return.

Handle this IRS notice

This page explains the proposed-change notice in plain English and points you to the official IRS help pages before you decide how to respond.

Treat CP2000 as a reconciliation project: return, information forms, books, and explanation all in one place.

How this notice usually works

What it usually means

This is a proposed-change notice, not a bill, based on income or payment mismatches.

Why you usually got it

You usually get CP2000 when information returns like W-2s or 1099s do not match the filed return.

What to do first

Compare the proposed changes to the return and the third-party documents, then respond by the deadline if you agree or disagree.

Time-sensitive note

CP2000 response deadlines matter because an unanswered proposal can move toward assessment.

Who this is for

People looking for a clearer, calmer path through this tax issue.

When to use this page

Use this page when you need a practical next step, not just a definition.

What to gather

  • Relevant income records
  • Statements, receipts, or notices
  • Tax-year-specific forms if needed

Forms that may matter

  • Forms depend on the page topic

Step-by-step

  1. Use the summary to decide if this page matches your situation.
  2. Gather the records listed here before making a tax decision.
  3. Follow the step-by-step actions and move into the related tool or next page.

Official sources

Sources and authority

Sources 2/2 Good source coverage Updated May 2026
IRS

IRS

TaxHackAI Help Center

Authority source

Action plan

Notice response checklist

Use the dashboard to keep the notice, supporting records, and your review steps connected before you answer or pay.

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Do first

Watch the deadline

Understand the issue

Use these tools

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Check authority

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Next best action

Open review workspace