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What is a CP12 notice?

Jo Willetts, EA

Director, Tax Resources

Published on: June 10, 2020

IRS notices are letters sent to inform taxpayers of important tax information. Each one is different, but we can explain what the CP12 is about.

Understanding your CP12 notice

You made one or more mistakes on your tax return and the IRS has corrected them resulting in you paying too much on your taxes.

Type of Notice

Tax return error

Why you received CP12 the notice

You received a CP12 notice because the IRS corrected one or more mistakes in your tax return. Those mistakes led to an overpayment of your taxes.

Likely next steps

As always, read the notice carefully.

If you agree with the IRS correction(s), you do not need to respond and will receive a refund check in 4-6 weeks from the IRS. The check will come to you in the same manner your original refund check came. If the original bank account is unavailable or your address has changed, contact the IRS using the phone number in the notice.

If you disagree with the IRS correction(s), you will need to contact the IRS within 60 days of the date you received the notice, either by telephone or mail.

CP12 Notice deadline

There is no deadline for this notice unless you disagree with the IRS correction(s).

If you miss the deadline

There is only a deadline if you disagree with the IRS correction(s) of your return. If so, you have 60 days from the date of your notice to dispute the IRS findings.


About the Author

Jo Willetts, Director of Tax Resources at Jackson Hewitt, has more than 35 years of experience in the tax industry. As an Enrolled Agent, Jo has attained the highest level of certification for a tax professional. She began her career at Jackson Hewitt as a Tax Pro, working her way up to General Manager of a franchise store. In her current role, Jo provides expert knowledge company-wide to ensure that tax information distributed through all Jackson Hewitt channels is current and accurate.

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