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IRS Notice CP21A: Changes you asked for: you owe

IRS Notice CP21A is a return adjustment letter from the IRS. The IRS made the changes you requested to your return, and you now owe money because of them. It explains a change the IRS made while processing your return.

What this letter usually means

The IRS made the changes you requested to your return, and you now owe money because of them. Compare the IRS figures with your copy of the return, line by line. The letter explains how to respond if you disagree.

Category: The IRS changed your return

What people usually do first

If you agree, pay by the date on your notice. If you disagree, call the number 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 CP21A.

Common questions about CP21A

What is IRS notice CP21A?

The IRS made the changes you requested to your return, and you now owe money because of them.

How long do I have to respond to a CP21A 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 CP21A for more.

Is a CP21A notice a scam?

A real CP21A 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 CP21A 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 CP21A 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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