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IRS Notice CP12: Changes to your return: refund changed

IRS Notice CP12 is a return adjustment letter from the IRS. The IRS corrected one or more mistakes on your return, and your refund changed. The IRS sends letters like this after it changes figures on a return. It is also known as CP12E, CP12F, CP12G, CP12N.

What this letter usually means

The IRS corrected one or more mistakes on your return, and your refund changed. A change can raise or lower what you owe or your refund. The letter shows both the old and new figures.

Category: The IRS changed your return

What people usually do first

If you agree, you don't need to do anything. If you disagree, contact the IRS by the date on your notice.

What to have ready

What may come next

This letter does not point to a specific follow-up letter. Any later step will be described in mail from the IRS.

Read the IRS page

The IRS letter itself is the final word on what it means for you. Read the IRS page for CP12.

Common questions about CP12

What is IRS notice CP12?

The IRS corrected one or more mistakes on your return, and your refund changed. It is also called CP12E, CP12F, CP12G.

How long do I have to respond to a CP12 notice?

The date to respond or pay by, if there is one, is printed on your letter. Check it, and read the IRS page for CP12 for more.

Is a CP12 notice a scam?

A real CP12 comes by mail and should match your own records. You can also sign in to your IRS Online Account on irs.gov to see your account directly.

What should I have ready for a CP12 notice?

The letter, every page, Your copy of the return, Records of any payments you have made, Records for any item the IRS changed.

The OweRight app explains the CP12 letter type in plain English.

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OweRight is not the IRS and does not give tax or legal advice.

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