IRS Notice CP87C: Someone else claimed your dependent
IRS Notice CP87C is a return adjustment letter from the IRS. A dependent on your return was also claimed on another return using the same Social Security number. It explains a change the IRS made while processing your return. Your letter is the final word, so read every page.
What this letter usually means
A dependent on your return was also claimed on another return using the same Social Security number. 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 may claim the dependent, you do not need to send anything now.
What to have ready
- The letter, every page
- Social Security cards of your dependents
- Your tax return
- Form 1040-X, if you listed someone by mistake
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 CP87C.
Common questions about CP87C
What is IRS notice CP87C?
A dependent on your return was also claimed on another return using the same Social Security number.
How long do I have to respond to a CP87C 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 CP87C for more.
Is a CP87C notice a scam?
A real CP87C 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 CP87C notice?
The letter, every page, Social Security cards of your dependents, Your tax return, Form 1040-X, if you listed someone by mistake.
Scan your letter in the OweRight iPhone app
The OweRight app can tell you what a CP87C letter is and points you to the IRS page for it.
OweRight is not the IRS and does not give tax or legal advice.
Related notices
- IRS Notice CP22I: Changes to your return for IRA taxes
- IRS Notice CP23: Estimated payments don't match: you owe
- IRS Notice CP24: Estimated payments don't match: refund changed
- IRS Notice CP25: Estimated payments don't match: balance is zero
- IRS Notice CP10: Changes to your return: next year's payments
- IRS Notice CP16: Changes to your return: refund offset