Understanding Your CP562C Notice


What this notice is about

Important Information about your child’s Adoption Taxpayer Identification Number (ATIN) - We need more information to process your 1- year extension request of your child’s ATIN

What you need to do

  • Complete Form 15100, Adoption Taxpayer Identification Number (ATIN) Extension Request PDF, included with your notice within 60 days, and provide:
    • The reason you need an extension.
    • The reason you can’t get a Social Security number (SSN).
    • The status of your adoption.
    • Original signatures of adoptive parents, or;
    • The SSN for your child if you received it.  
  • Detach notice stub, mail it with Form 15100 in the envelope provided. If you prefer, you can fax it using the information provided on the form.

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Frequently asked questions

What do I need to do?

Send us the missing information so we can process your 1-year extension.

How long is an ATIN valid?

An ATIN is valid for 2 years. If you don’t have an SSN for your child, you can request a 1-year extension. For more information, see instructions for completing a Form W-7A, Application for IRS Adoptions for IRS Individual Taxpayer Identification Number.

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