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In the IRS’s own words · not reviewed by VALID

CP562C notice explained, in the IRS’s own words

We need more information to process your 1- year extension request of your child’s adoption taxpayer identification number (ATIN).

Read the full CP562C page on irs.gov ↗

Quoted from www.irs.gov/individuals/understanding-your-cp562c-notice, read October 15, 2026 · fingerprint b22a61039db2

What this notice is about

We need more information to process your 1- year extension request of your child’s adoption taxpayer identification number (ATIN).

What you need to do

  • Send us a completed 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.
  • The quickest way to submit your reply is using the Document Upload Tool (DUT) If you prefer, you can fax your information to the fax number in the notice using either a fax machine or an online fax service. Protect yourself when sending digital data by understanding the fax service’s privacy and security policies.

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-7 A, Application for IRS Adoptions for IRS Individual Taxpayer Identification Number.

What to do next

  • Write down the date on the letter today.
  • Look the number up on irs.gov yourself. Don’t trust a link or phone number from anyone else.
  • If it says you owe money or proposes changes to your return, take it to a licensed CPA, EA or tax attorney before that date.

Not advice. Not a filing. Verify with a licensed professional. Rules change by year and facts.

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