Does a grandchild, who is a dependent, qualify for the Child Tax Credit?
Your grandchild under the age of 17 who is your dependent and is a U.S. citizen or resident alien is a qualifying child for the child tax credit. Please refer to the 1040 Instruction Booklet or the 1040A Instruction Booklet index for the Child Tax Credit. The referenced pages will explain who qualifies for the Child Tax Credit, and how to calculate it.