To amend the Internal Revenue Code of 1986 to clarify eligibility for the child tax credit.

Child Tax Credit Protection Act of 201 7 This bill amends the Internal Revenue Code to expand the identification requirements for the child tax credit to require taxpayers to provide a valid identification number (i.e., a Social Security account number issued by the Social Security Administration) on their tax returns in addition to the name and taxpayer identification number of each qualifying child. A "valid identification number" does not include a taxpayer identification number issued by the Internal Revenue Service.