If you believe someone else has incorrectly or fraudulently claimed your dependent, there are steps you can take to resolve it and protect your return.
First, review your dependent’s information
Before assuming fraud, double-check the details you entered for your dependent.
Even a small error—like a single digit being off in their Social Security number (SSN)—can trigger an IRS message saying someone else already claimed them.
If everything is correct, consider whether you know who may have claimed your dependent. The IRS can’t tell you who claimed them due to privacy laws.
What if I know who claimed my dependent?
If you know who claimed your dependent, you’ll need to show that you’re entitled to claim them.
Here’s what to expect:
Prepare a paper tax return that includes the dependent you’re entitled to claim
Mail the completed return to the appropriate IRS address
Complete Form 886-H-DEP, which outlines documentation you can provide to prove eligibility (such as a birth certificate, medical records, or letters from childcare providers)
You may also receive IRS notices during this process:
CP75A notice
This means the IRS is reviewing your claim and needs additional documentation.CP87A letter
This letter states that your child was claimed on another return and explains next steps. Both parties receive this letter. If neither person files an amended return removing the dependent-related benefits, the IRS may audit the situation to determine who can claim the dependent.
It’s important to respond promptly and watch for IRS communications.
What if I don’t know who claimed my dependent?
If you don’t know who claimed your dependent, it’s possible your dependent’s information was used for identity theft.
In addition to the steps above, the IRS recommends filing Form 14039, the Identity Theft Affidavit. This notifies the IRS of the issue and helps protect future filings.
After filing Form 14039:
The IRS will assign an Identity Protection PIN (IP PIN) for future years
The IP PIN will be mailed to you
You’ll need this PIN to e-file tax returns claiming your dependent
Key takeaway
If someone else claimed your dependent, start by confirming your information is correct. Whether you know who claimed them or not, the IRS has a process to review eligibility and address possible identity theft. Staying responsive and keeping documentation handy can help resolve the issue more smoothly.
This content is provided for informational purposes only and should not be construed as tax, legal, financial, accounting, or other advice. Rules and regulations vary by location and are subject to change, so please consult with an expert if you need advice specific to you.
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