Understanding your CP561C notice

What this notice is about

We have important information about your child’s Adoption Taxpayer Identification Number (ATIN). Your child’s ATIN expired.

What you need to do

• Complete Form 15101, Provide a Social Security Number (SSN) for Adoptive Child PDF, included with your notice if you received a Social Security number (SSN) for your child.
• You can send us your information using the Document Upload Tool. To use the tool, visit IRS.gov/dutreply, or:
• If you prefer, 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.

You may want to

• Call us at the number listed in your notice.
• See additional information on Adoption taxpayer identification number.

Frequently asked questions

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 Taxpayer Identification Number for Pending U.S. Adoptions.