My daughters Birthday is at the end of December. For future references, when she turns 17 in Dec of 2018 will I be to claim Child Tax Credit for 2018?

[DoninGA · Accepted solution]

No.  The child must be under the age of 17 on the last day of the year to be eligible for the Child Tax Credit.

[SweetieJean]

No you will not. (But you did get to claim it the year she was born, even though she was only a few days old.)