Enter your adopted child's Social Security number (SSN), Individual Taxpayer Identification number (ITIN), or Adoption Taxpayer Identification number (ATIN).
If you are in the process of adopting a child who is a U.S. citizen or resident alien but cannot get an SSN for the child in time to file your return, apply for an ATIN using
Form W-7A . However, if the child is not a U.S. citizen or resident alien, apply instead for an ITIN using
Form W-7 .