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Individual Tax Return
Instructions for Form 1040
Request for Taxpayer Identification Number (TIN) and Certification
Request for Transcript of Tax Return


Employee's Withholding Allowance Certificate
Employer's Quarterly Federal Tax Return
Employers engaged in a trade or business who pay compensation
Installment Agreement Request

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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

  • 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.

You may want to

Answers to common 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. However, if you don’t have a SSN for your adoptive 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 (PDF), or Form W-7(SP), Solicitud de Número de Identificación Personal de Contribuyente del Servicio de Impuestos Internos (PDF).

Printable samples of this notice (PDF)

How to get help