IRS Notice CP2000: Proposed changes — income doesn't match

Quick answerIncome or payments reported to the IRS by employers, banks or brokers don't match your return, and the IRS proposes changes to your tax.

Letter / noticeCP2000

MeaningProposed changes — income doesn't match

Action needed?Yes — see steps

What happens next

You usually have 30 days to respond (60 if outside the U.S.).

What you should do

Compare each item to your records
Agree, partly agree or disagree using the response form
Send supporting documents if you disagree

IRS Notice CP2000 explained: Proposed changes — income doesn't match — what it means and what to do next — Save this quick guide for later — share it or pin it.

Scam check: the IRS first contacts you by mail. Use only the phone numbers printed on your letter or on IRS.gov — never ones from a text, email or unofficial site.

Frequently asked questions

What does IRS Notice CP2000 mean?

Income or payments reported to the IRS by employers, banks or brokers don't match your return, and the IRS proposes changes to your tax.

What should I do?

Compare each item to your records Agree, partly agree or disagree using the response form Send supporting documents if you disagree

How long does it take?

You usually have 30 days to respond (60 if outside the U.S.).

Sources

Written by the editorial team and checked against the official sources above. See our editorial policy.

By the TranscriptCodes Editorial Team · Last reviewed 2026-11-12.