---
title: CP2000 Notice Explained: What to Do Next | TaxTruce
url: https://taxtruce.com/notices/cp2000
updated: 2026-10-29
---

# CP2000, explained

Your income does not match.

Updated October 8, 2026[Fact checked](/editorial-standards)

How urgent**High**

Your income does not match.

The short answer

A CP2000 says income or payment records from others don't match your return. It is not a bill, but you may need to reply by the date on the notice. The change could raise, lower or not change your tax. Reply on time.

## Key facts

* It is not a bill.
* It is based on records from employers, banks and others.
* The change can raise, lower or not change your tax.
* If you don't reply, the IRS may send another notice and a bill.

## What to do next

* Read the whole notice.
* Fill out the reply form, say if you agree, and add proof.
* Have more to report? File Form 1040-X with CP2000 written on top.

Check your balance in your own [IRS online account](https://www.irs.gov/payments/your-online-account), and use the phone number on the notice or on irs.gov.

Results depend on your situation. Not every case qualifies.

## Common questions

What is a CP2000 notice?

A CP2000 says income or payment records from others don't match your return. It is not a bill, but you may need to reply by the date on the notice. The change could raise, lower or not change your tax. Reply on time.

How urgent is a CP2000?

High. Act by the date on the notice so it does not move up the ladder. The date on your notice is the one that counts.

## Sources

1. [IRS: Understanding your CP2000 notice](https://www.irs.gov/individuals/understanding-your-cp2000-notice)

Run the numbers with our [free tax tools](/tools), like the penalty and payment plan math.