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IRS letters & help

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Notice finder

Find your notice. We'll tell you what it means.

Every IRS letter has a notice number in the top right corner. Pick yours to see what it means in plain words and how soon you need to act.

DEPARTMENT OF THE TREASURY
Internal Revenue Service
Your name · Miami, FL
NoticeCP2000

The IRS thinks some income is missing from your return.

Act within 30 days

What it means

An employer, bank or client reported income to the IRS that doesn't match what's on your return. The IRS is proposing more tax, and sometimes a penalty. You can agree, partly agree or disagree.

How Avivas helps

We check their numbers against your records, write the response and send proof if they're wrong. If the IRS has it wrong, we show them.

Book a letter reviewBring the full letter, every page.

General information, not tax advice for your situation. The date on your letter is the one that counts.

Read a sample letter

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Move the magnifier over this sample letter, or tap the highlighted lines. Each note shows what we look for first.

DEPARTMENT OF THE TREASURY
Internal Revenue Service
Austin, TX
NoticeCP2000
Tax year2025
Notice dateSeptember 14, 2026
Taxpayer IDXXX-XX-1234
YOUR NAME
YOUR ADDRESS
MIAMI FL

Proposed changes to your 2025 Form 1040

We have information that does not match the entries on your 2025 Form 1040. Income reported to us by a payer was not included on your return.

Proposed amount due$1,284.00

What you need to do

  • Review this notice and compare it with your records.
  • Complete and return the Response form by October 14, 2026.
  • If you don't agree, send a signed statement and supporting documents.
Page 1 of 5Response form: page 5
  1. 1Start here. This number tells us exactly what kind of letter it is.
  2. 2The clock starts on this date, not the day you opened the envelope.
  3. 3Never send this number by email. Bring the letter and we take it from there.
  4. 4A proposal, not a final bill. You can agree, partly agree or disagree.
  5. 5Your real deadline. Reply by this date, even if you disagree.
  6. 6The response form is usually near the back. Bring every page.
0 of 6 notes found

Sample letter for illustration only. The notes are general information, not tax advice for your situation.

Bring the full letter, every page.

We read it with you, in English or Spanish.

Book a letter review

General information, not tax advice for your situation. The date on your letter is the one that counts.