Information For...

For you and your family
Individuals abroad and more
EINs and other information

Filing For Individuals

Information For...

For you and your family
Standard mileage and other information

Forms and Instructions

Individual Tax Return
Request for Taxpayer Identification Number (TIN) and Certification
Single and Joint Filers With No Dependents
Employee's Withholding Allowance Certificate

 

Request for Transcript of Tax Returns
Employer's Quarterly Federal Tax Return
Installment Agreement Request
Wage and Tax Statement

Popular For Tax Pros

Amend/Fix Return
Apply for Power of Attorney
Apply for an ITIN
Rules Governing Practice before IRS

Understanding your CP12E or CP12F Notice

We made changes to correct a miscalculation on your return.


What you need to do

  • Review the notice, and compare our changes to the information on your tax return.
  • If you agree with the changes we made, do nothing; you should receive a refund check in 4-6 weeks, as long as you don't owe other tax or debts we're required to collect.
  • If you don't agree, call 1-800-829-8374 to review your account or contact us by mail. Include any correspondence or documentation.

You may want to...

  • Download a copy of the following publication (if it wasn't included with your notice):
  • Call 1-800-TAX-FORM (1-800-829-3676) to have forms and publications mailed to you.

Answers to Common Questions

Why did I receive this notice?
We issue Notice CP12E or CP 12F when we correct one or more mistakes on your tax return, and

  • The overpayment is different from the one you expected, or
  • You have an overpayment when you thought you owed money or had an even balance.

How can I find out what caused my tax return to change?
Please contact us at the toll free number listed on the top right corner of your notice for specific information concerning your tax return.

What should I do if I disagree with the changes you made?
If you disagree, contact us at the toll free number listed on the top right corner of your notice.

If you contact us in writing within 60 days of the date of this notice, we'll reverse the change we made to your account. However, if you're unable to provide us with additional information that justifies the reversal and we believe the reversal is in error, we'll forward your case to examination for audit. This step gives you formal appeal rights, including the right to appeal our decision in court. After we forward your case, the audit staff will contact you within five to six weeks to fully explain the audit process and your rights. If you don't contact us within the 60 day period, you'll lose your right to appeal our decision before payment of tax.


Tips for next year

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

Printable samples of this notice (PDF)

How to get help

Calling the 1-800 number listed on the top right corner of your notice is the fastest way to get your questions answered.

You can also authorize someone (such as an accountant) to contact the IRS on your behalf using this Power of Attorney and Declaration of Representative (Form 2848).

Or you may qualify for help from a Low Income Taxpayer Clinic.