Understanding Your CP560B Notice

What this notice is about

Important Information about your child's Adoption Taxpayer Identification Number (ATIN) - We approved your request for a one-year extension.


What you need to do


You may want to


Answers to common questions

How long is an ATIN extension valid?

An ATIN extension is valid for 1 year. You may request an extension before your assigned ATIN expires.

Printable samples of this notice (PDF)

Need Help?

  • You can authorize someone to contact the IRS on your behalf.
  • See if you qualify for help from a Low Income Taxpayer Clinic.
  • If you can’t find what you need online, you can call the IRS at the 800, 866, or 888 number listed on the notice.