What this notice is about

The income or payment information we have on file doesn't match the information you reported on your tax return. This discrepancy may cause an increase or decrease in your tax, or may not change it at all. The notice explains what information we used to determine the proposed changes to your tax return.


What you need to do

  • Read your notice carefully. It explains the information we received and how it affects your tax return.
  • Complete the notice response form and state whether you agree or disagree with the notice. The response form explains what actions to take. (Your specific notice may not have a response form. In that case, the notice will have instructions on what to do). You can return your response by mail or fax to the return address or fax number shown on the notice. Use the return envelope when responding through the mail.
  • If you agree with the proposed changes, follow the instructions to sign response form. We require both spouses' signatures if you filed married filing jointly.
  • If you disagree, complete and return the response form. Provide a signed statement explaining why you disagree and supply any documentation to support your statement.
  • If the information reported to us is not correct, contact the business or person who reported the information. Ask them for a corrected document or a statement to support why it is in error, then send us a copy with your response.

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Frequently asked questions

We received information from a third party, such as employers or financial institutions, which doesn't match the information you reported on your tax return.

No, the notice is a proposal and informs you of a discrepancy between the information we received and the information reported on your tax return. If the discrepancy remains unresolved, or we don’t receive a response to the notice, you may receive a subsequent notice and a bill at a later date.

Complete the notice response form. (Follow the notice instructions if your notice doesn't have a response form.)

If the information reported to us is not correct, contact the business or person who reported the information. Ask them for a corrected document or a statement to support why it is incorrect, then send us a copy with your response.

The notice response form has instructions on what to do if the information is incorrect. If you disagree, complete and return the response form. Provide a signed statement explaining why you disagree and supply any documentation or missing forms to support your statement.

You can complete and send Form 14039, Identity Theft Affidavit PDF, along with the completed response form. You can also go to our identity theft information  webpage to find out more about what you can do.

Yes, you can call us. We can generally accept your information over the phone for incorrectly reported information. If the information you provide over the phone isn't enough to resolve all the issues, you should mail or fax a signed statement explaining your disagreement and include any documentation that supports your position.

If the information displayed in the CP2000 notice is correct, you do not need to amend your return unless you have additional income, credits or expenses to report. If you agree with our notice, follow the instructions to sign and return the response form in the envelope provided or fax it to the number shown on the notice. We require both spouses' signatures if you filed married filing jointly.

If you have additional income, credits or expenses to report, you may want to complete and submit a Form 1040-X, Amended U.S. Individual Income Tax Return PDF. You can get help at an IRS Taxpayer Assistance Center.

If you choose to file an amended return, write "CP2000" on top of your return and attach it behind your completed response form. Send the information in the envelope provided or fax it to the number shown on the notice.

You can request a return transcript on our Get Transcript page. You can also get one by calling our automated phone application at 800-908-9946 or by completing and sending us a Form 4506-T, Request for Transcript of Tax Return PDF.

If a transcript won't do, ask for a copy of your return from your tax preparer if you used one. Otherwise, you can get a copy of your return by completing and sending us a Form 4506, Request for Copy of Tax Return PDF. We charge a fee for tax return copies.

IRS Taxpayer Assistance Centers are located throughout the country. Our website has directions on how to find the center nearest to you.

Our computer systems match the information you report on your tax return to information reported by employers, banks, businesses, and others. Due to the complexity of the matching process, it can take months to complete.

Yes, interest accrues on your unpaid balance until you pay it in full.

Our website has information about payment options. Ensure you respond to the notice timely even if you pay online or set up a payment plan.

Visit our website for information about online payment options, including pre-assessed installment and payment agreements, payroll deductions, credit card payments, direct debit payments and applicable fees.

If you agree and would like to apply for an installment agreement plan by mail, send your signed response form and a completed Form 9465, Installment Agreement Request PDF, and return it in the envelope provided.


Tips for next year

You can avoid future problems by:

  • keeping accurate and full records.
  • waiting until you get all your income statements before filing your tax return.
  • checking the documents you receive from your employer, mortgage company, bank, or other sources of income (Forms W-2s, 1098s, 1099s, etc.) to make sure they're correct.
  • including all your income on your tax return.
  • following the instructions on how to report income, expenses and deductions.
  • filing an amended tax return for any information you receive after you've filed your return.

Consider filing your taxes electronically. Filing online can help you avoid mistakes and find credits and deductions you may qualify for. In many cases, you can file for free. Learn more about how to file electronically.