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Someone Used My Child’s Social Security Number: Dependent Tax Fraud and What to Do

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Quick Review: A child’s Social Security number can be misused to file a fraudulent return or claim a dependent. A rejected return, unexpected IRS notice, smaller refund, or letter about a child who never filed may require prompt review. Verify the facts, contact the IRS, protect the child’s tax identity, and document every step.

A New Channel for Evaluating Tax Identity Protection

Tax identity theft involving a child can be especially alarming because the child may have never filed a tax return, earned wages, or opened a financial account. Parents often assume that a child’s Social Security number is not at risk because there is no visible credit activity to monitor.

That assumption can create a blind spot. A child’s Social Security number may remain unused for years, making unusual tax activity difficult to notice until a legitimate family return is rejected or an IRS letter arrives.

When a child’s information appears on an unfamiliar tax record, the issue may be a simple data-entry mistake, an improper dependent claim, or potential tax identity theft. The response should begin with verification and proceed through official IRS channels.

Signs That a Child’s Tax Identity May Have Been Misused

Several events can signal that a child’s Social Security number or dependent information was used without authorization. None proves fraud by itself, but each deserves careful review.

A tax return is rejected

A parent may receive an electronic filing rejection stating that the dependent’s Social Security number was already used on another return or on a return filed by the dependent.

This can happen because:

  • The child’s Social Security number was entered incorrectly.
  • Another eligible person claimed the child under the dependency rules.
  • A former spouse, relative, or household member claimed the child improperly.
  • Someone used the child’s information to file a fraudulent return.

The IRS generally cannot disclose who claimed a dependent when the dependent is listed only as a dependent on the return. Parents should not contact or accuse another person based only on an e-file rejection.

The IRS asks for proof of a dependent

An IRS notice may ask a parent to prove that the child qualifies as a dependent. The request may involve records showing the child’s identity, relationship to the taxpayer, residence, or support.

A request for proof does not automatically mean that the child was a victim of identity theft. It may result from competing claims or an IRS review. However, parents should respond completely and by the deadline if the notice requires documentation.

A legitimate refund is smaller than expected

A family may receive a smaller refund because a dependent-related credit was removed, adjusted, or delayed. Other explanations can include an offset, a corrected income document, a math error, or a change in eligibility.

If the reduction is connected to a child who was properly claimed, the parent should review the IRS notice and compare it with the filed return. A smaller refund can be an early sign that someone else claimed the child or used the child’s information in a return.

A letter concerns a child who has never filed

Parents may receive an IRS notice about a child who has never filed a return. The notice could refer to a return, a dependent claim, income information, or identity verification.

A child does not need to have filed a return to be affected by tax identity theft. A criminal may use the child’s Social Security number to claim a dependent-related benefit, attach the child to a fraudulent return, or create tax records that the family does not recognize.

Why Children Are Attractive Targets

Children’s tax identities can be attractive to criminals for several reasons.

  • No established credit file: Parents may monitor their own credit reports while never checking whether a child has an unexpected credit or tax record.
  • Dormant Social Security numbers: A child’s number may remain unused for years, allowing suspicious activity to go unnoticed.
  • Limited tax activity: Children may not file returns or receive tax documents, so families have fewer routine records to compare.
  • Delayed discovery: Misuse may not become obvious until the child begins working, files a first return, or is claimed as a dependent.
  • Family and household access: Documents containing a child’s Social Security number may be stored, shared, or accessed by multiple adults.

Tax identity theft can therefore affect a child even when the child has no income and has never interacted with the IRS.

What to Do After Suspecting Dependent Tax Fraud

A structured response can help a parent separate an administrative error from potential tax identity theft.

1. Verify the child’s information

Start by checking the child’s legal name, Social Security number, date of birth, and relationship information exactly as shown on official records. A mismatch between a tax return and the Social Security Administration record can cause an e-file rejection.

The parent should also confirm that the child qualifies as a dependent under current IRS rules. The IRS Identity Theft Dependents guidance explains how to review a dependent claim and respond when another return includes the child.

2. Preserve the rejection, notice, or letter

Save a copy of every IRS notice, e-file rejection message, and related communication. Record:

  • The date the issue was discovered
  • The tax year involved
  • The notice or rejection number
  • The child’s information as it appears on the notice
  • The refund amount expected and the amount received, if applicable
  • Any deadlines for responding
  • Names, dates, and confirmation numbers from IRS conversations

Parents should avoid sending sensitive documents through unverified email or text-message links. Use IRS.gov or the contact information printed on the official notice.

3. File the legitimate return correctly

If the parent is entitled to claim the child, the IRS generally allows a qualifying return to be filed by paper when electronic filing is blocked by a duplicate dependent claim. For tax year 2024 and later, the IRS states that the primary taxpayer may generally e-file with a current-year Identity Protection Personal Identification Number, or IP PIN.

Parents should follow the instructions for the specific tax year and notice. The IRS advises taxpayers not to attach proof of dependent eligibility to the original return unless the IRS requests it. If the agency needs documentation, it will provide instructions about what to submit and where to send it.

4. Contact the IRS Identity Protection Specialized Unit

A parent or legal guardian should contact the IRS Identity Protection Specialized Unit when the child’s Social Security number appears to have been used for federal tax purposes.

The IRS Identity Protection Specialized Unit number is 800-908-4490. International callers may use 267-941-1000. The parent should have the child’s identifying information, the relevant notice or rejection, and a clear timeline available before calling.

The IRS may provide instructions based on whether the issue involves a duplicate dependent claim, a fraudulent return, an identity verification request, or another type of account activity.

5. Submit Form 14039 when appropriate

Form 14039, Identity Theft Affidavit, is an IRS identity theft affidavit used to report certain tax-related identity theft situations. A parent or legal guardian may submit the form on behalf of a dependent child when the child’s information was used in a qualifying federal tax matter.

The current Form 14039 and instructions require the parent or guardian to identify the child as the victim and provide representative information. The form should explain what occurred, when it was discovered, and which tax years may be affected.

Important points include:

  • Do not submit multiple Forms 14039 for the same incident.
  • Follow the submission instructions for the notice or letter received.
  • Use the IRS online submission method when appropriate.
  • If a paper return is required because a dependent’s SSN was misused, follow the IRS instructions about attaching the form.
  • Do not use Form 14039 for a situation that is specifically excluded from the form’s identity theft criteria, such as certain cases involving misuse by a parent or guardian.

A tax professional can help determine whether the facts support filing the form.

6. Request an IP PIN for the child

An IP PIN is a six-digit number that helps the IRS verify a taxpayer’s identity when a federal return is filed. Parents and legal guardians may request an IP PIN for a dependent.

Children under age 18 generally cannot use the standard online enrollment process. The parent may need to use an alternative IRS enrollment method or schedule an in-person appointment. The IRS IP PIN instructions explain current procedures and identity-verification requirements.

An IP PIN is valid for one calendar year. It should be kept confidential and provided only to the trusted tax professional preparing the return, when applicable.

7. Check whether other family members are affected

When one family member’s information is misused, other records may also be at risk. Parents should review the tax activity of household members who share documents, accounts, or exposure to the same data breach.

Check for:

  • Unfamiliar IRS notices
  • Unexpected Forms W-2 or 1099
  • Rejected tax returns
  • Unrecognized account changes
  • Suspicious refunds or balances
  • Employment or benefit records that do not belong to the family member

The IRS also recommends reviewing broader identity theft concerns through IdentityTheft.gov when a Social Security number may have been used outside the tax system.

Minimalist blue-line illustration of a family response path connecting an IRS building, identity theft affidavit, and protective shield

Records That May Help Prove a Dependent Claim

If the IRS opens a dependent eligibility review, it may request documents showing the relationship between the taxpayer and child and where the child lived during the tax year.

Potential records may include:

  • The child’s birth certificate
  • The child’s Social Security card
  • School or daycare records
  • Medical records
  • Proof of address
  • Custody or court documents, when applicable
  • Records showing shared residence
  • Documentation related to support or household expenses

Parents should submit only the information requested and follow the IRS response instructions. Sensitive documents should be stored securely, and unnecessary Social Security numbers should be redacted from copies when permitted.

How Tax Guardian Can Support Ongoing Awareness

Tax Guardian is not an IRS service and does not claim to prevent tax identity theft. Its role is to monitor IRS account activity for suspicious changes, provide alerts through available channels, and offer recovery support for eligible plans.

Depending on the selected plan and applicable terms, family coverage options may help parents maintain visibility into IRS activity associated with eligible family members. Tax Guardian can help streamline awareness of suspicious filings, income activity, and other tax-account changes that may otherwise go unnoticed.

Families can review Tax Guardian’s consumer information and current tax identity protection options. Monitoring should supplement, not replace, official IRS procedures, IP PIN enrollment, secure document handling, and professional tax guidance.

Frequently Asked Questions

Can a child experience tax identity theft without ever filing a tax return?

Yes. A criminal may use a child’s Social Security number to claim the child as a dependent, attach the child to a fraudulent return, or create other tax records. The issue may not become visible until a parent files a legitimate return or receives an IRS notice.

What is an IRS identity theft affidavit?

An IRS identity theft affidavit is Form 14039, which allows eligible victims or authorized representatives to report certain tax-related identity theft situations to the IRS. A parent or legal guardian may complete the form for a dependent child when the child’s information was misused in a qualifying federal tax matter.

Will the IRS tell a parent who claimed the child?

Usually, no. Federal privacy laws generally prevent the IRS from disclosing the identity of the person who claimed a dependent when the child is listed only as a dependent on the other return.

Does requesting an IP PIN prove that a child was a victim of tax identity theft?

No. An IP PIN can be requested proactively, even when identity theft has not been confirmed. It provides an additional identity-verification step for future federal tax returns.

Give a Child’s Tax Identity the Same Attention as an Adult’s

A child’s Social Security number may appear inactive, but it remains valuable personal information. A rejected return, unexpected notice, smaller refund, or letter about a child who never filed should be treated as a prompt to verify the facts and review the family’s broader exposure.

The most effective response is methodical: confirm the child’s information, preserve records, contact the IRS Identity Protection Specialized Unit, file Form 14039 when appropriate, request an IP PIN, and check whether other family members are affected.

IRS sources: Identity Theft Dependents, Form 14039, Identity Theft Affidavit, and Get an Identity Protection PIN.

Disclaimer: Tax Guardian Software Solutions provides access to legal services offered by the Tax Guardian Network. None of the above corporate entities, nor its officers, employees, or sales associates directly or indirectly provide legal services, representation, or advice. Any forms provided are not legal advice and should not be construed as such. You should consult with a lawyer or qualified tax professional to confirm that any form or action meets your needs. Service availability, eligibility, coverage, limits, exclusions, and terms are subject to change. Use of this website and the services is subject to Tax Guardian Software Solutions terms of service and data protection addendum.

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