Question May I claim the child tax credit for a child who has an individual taxpayer identification number (ITIN) rather than a Social Security number (SSN)? Answer No, you may not claim the child tax credit for a child with an ITIN. The child must have an SSN to be a qualifying child eligible for the child tax credit (CTC) and/or additional child tax credit (ACTC). To be a qualifying child for the CTC and/or ACTC, the child must be a U.S. citizen, U.S. national or U.S. resident alien, and must not have attained age 17 by the end of the tax year. The Instructions for Schedule 8812, Credit for Qualifying Children and Other Dependents, explain who qualifies for the CTC and ACTC, the requirements for taxpayer identification numbers (TINs), and how to calculate the credits. Attach Schedule 8812 (Form 1040) to Form 1040, U.S. Individual Income Tax Return, Form 1040-SR, U.S. Tax Return for Seniors or to Form 1040-NR, U.S. Nonresident Alien Income Tax Return. Additional Information Publication 501, Dependents, Standard Deduction and Filing Information Does my child/dependent qualify for the child tax credit or the credit for other dependents? Category Childcare Credit, other credits Sub-Category Child Tax Credit