Family Guide

How to Apply for an ITIN for a Minor Through a CAA

Many parents aren't sure how to apply for their child's ITIN (Individual Taxpayer Identification Number) — especially how to do it through a Certified Acceptance Agent (CAA). Here is a practical, step-by-step guide.

The ITIN is a tax number issued by the IRS for people who do not qualify for an SSN. Minors usually need an ITIN for one of these reasons: as a dependent listed on their parents' tax return, or for other IRS-recognised purposes.

Not sure whether you need one? Remember the general principle: if any family member is involved in US tax matters, it is wise to apply for an ITIN in good time.

The Application Process

  1. Confirm the application purpose

    Before you start, clearly define how the ITIN will be used — for tax filing, as a dependent, or for another compliance purpose. This step is crucial.

  2. Prepare the documents

    You need: 1. the W-7 form (your CAA will help fill it in and state the reason); 2. the child's passport or another identity document; 3. any supporting documents required for the specific purpose.

  3. Sign a power of attorney

    Because a minor cannot act on their own, the legal guardian must sign an authorisation empowering the CAA to handle the ITIN application. It should state the relationship to the child and the scope of the entrusted work.

  4. Verify the identity documents

    The biggest advantage of using a CAA is that they can verify documents such as the passport through video verification — avoiding the hassle and risk of mailing originals to the IRS.

  5. Submit the application

    Once the documents are ready, the CAA submits them to the IRS — typically the W-7 form, a CAA-verified copy of the passport, and all relevant supporting documents.

  6. Wait for the result

    The IRS usually takes about 10 weeks to process the application. Once approved, the ITIN is mailed to you as a letter.

How to Choose a CAA

  1. Check the official IRS website — make sure they are a certified acceptance agent.
  2. Choose an experienced CAA — especially one familiar with minor applications.
  3. Look for easy communication — language support that helps you save a lot of trouble.

Applying for an ITIN for a minor is not difficult — follow the steps above and use a CAA's professional service, and it can be done smoothly. If you're ready to start, apply for an ITIN tax number online today.

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