CP2000 Notice — Proposed Changes to Your Tax Return

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A CP2000 Notice is one of the most common notices issued by the IRS. It is not an audit, but it does require your attention and a timely response.

The IRS sends a CP2000 when the income, payments, or credits reported on your tax return do not match information the IRS received from employers, financial institutions, brokerage firms, or other third parties.

The notice proposes changes to your tax return based on the information available to the IRS. Before any changes become final, you have the opportunity to review the proposed adjustments and either agree or disagree.

Notice Type: Proposed Changes to Your Tax Return

IRS Action: The IRS believes information reported by third parties does not match your tax return.

Response Required? Yes

Typical Response Deadline: Generally 60 days from the notice date

Can This Lead to Collections? Yes, if you ignore the notice and the proposed tax is eventually assessed.

The IRS uses its Automated Underreporter (AUR) Program to compare the information reported on your tax return with information submitted by employers, banks, brokers, and other payers.

A CP2000 may be issued because:

• Income reported on a Form W-2 does not match your tax return.

• You forgot to report income from a Form 1099-NEC, 1099-MISC, or 1099-K.

• Interest or dividend income was omitted.

• Retirement distributions reported on Form 1099-R were not fully reported.

• A lender reported cancellation of debt income.

• Stock sales or cryptocurrency transactions were reported without matching information on your return.

• A Social Security number or taxpayer identification number was entered incorrectly.

Receiving a CP2000 does not necessarily mean you made a mistake. Sometimes the IRS information is incomplete or additional documentation is needed to explain the difference.

 No.

A CP2000 is not a formal IRS audit.

Instead, it is a proposed adjustment generated by the IRS's Automated Underreporter (AUR) Program. The IRS is asking you to review its proposed changes and respond before the adjustments become final.

Although it is not an audit, it should still be taken seriously because ignoring the notice may result in additional tax, penalties, interest, and future collection activity.

Your CP2000 Notice generally includes:

• The tax year involved.
• The income or items the IRS believes were reported incorrectly.
• The proposed tax changes.
• Estimated penalties and interest.
• The total proposed balance due (if applicable).
• Instructions for responding.
• A response deadline.

Review the notice carefully before deciding whether you agree with the proposed changes.

1. Read the notice carefully.

Identify exactly which income or items the IRS believes were reported incorrectly.

2. Gather your records.

Collect your tax return, Forms W-2, Forms 1099, brokerage statements, cryptocurrency records, or other supporting documents.

3. Compare the IRS information to your records.

Determine whether the proposed changes are correct.

4. Respond before the deadline.

Do not ignore the notice—even if you believe the IRS is wrong.

If you agree:

• Sign the response form.
• Return it to the IRS.
• Pay the balance as soon as possible to reduce additional penalties and interest.

If you cannot pay in full, you may qualify for an IRS payment plan.

If you disagree:

• Respond before the deadline.
• Clearly explain why you disagree.
• Include copies (not originals) of supporting documentation.

Common reasons taxpayers disagree include:

• Income was already reported elsewhere on the return.
• A Form      1099 was issued incorrectly.
• The income is not taxable.
• Cost basis was not included for stock sales.
• Business expenses or deductions offset the reported income.

Supporting documentation is often the key to resolving a CP2000 successfully.

You may agree with some proposed changes while disagreeing with others.

Clearly identify which items you agree with and provide documentation supporting the items you dispute.

Ignoring a CP2000 Notice can have significant consequences.

If you do not respond:

• The IRS may assess the proposed tax.
• Additional penalties and interest may accrue.
• The IRS may issue a Notice of Deficiency.
• If the balance remains unpaid, normal IRS collection procedures may begin.

Responding before the deadline preserves your opportunity to explain your position before the proposed changes become final.

Most CP2000 Notices require a response within 60 days from the date printed on the notice.

If you need additional time to gather documentation, you may be able to request an extension before the response deadline expires.

Always review your notice carefully because response deadlines can vary.

If additional tax is ultimately assessed, you may also owe:

• Failure-to-Pay Penalty
• Accuracy-Related Penalty (when applicable)
• Daily interest on the unpaid balance

The sooner the issue is resolved, the less additional interest and penalties generally accumulate 

Avoid these common mistakes after receiving a CP2000 Notice:

❌ Ignoring the notice because you believe it is an audit.

❌ Missing the response deadline.

❌ Sending original documents instead of copies.

❌ Assuming the IRS is always correct without reviewing your records.

❌ Failing to keep copies of everything you send.

No. A CP2000 is a proposed adjustment generated by the IRS's Automated Underreporter Program and is not considered an audit.

You have the right to disagree and provide documentation supporting your position before the IRS makes the proposed changes final.

In many cases, yes. If additional time is needed to gather records, you may request an extension before the response deadline.

Yes. If the proposed changes become final and you cannot pay in full, you may qualify for an IRS payment plan.