Information For...

For you and your family
Standard mileage and other information

Forms and Instructions

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

Popular For Tax Pros

Amend/Fix Return
Apply for Power of Attorney
Apply for an ITIN
Rules Governing Practice before IRS

Understanding Your CP561B Notice

What this notice is about

Important Information about your child’s Adoption Taxpayer Identification Number (ATIN) - The extension for your child’s ATIN expires in 3 months.

What you need to do

You may want to

Answers to common questions

What if I don’t have a Social Security number (SSN) for my child?

You can’t claim your child on your tax return. You can file an amended return once you have an SSN for your child.

Printable samples of this notice (PDF)

How to get help