On my federal income tax, can I claim a child tax credit for a child over 17 who is a full time student?

NO! If they are over 17 you cannot claim the Child Tax Credit.

On my federal income tax, can I claim a child tax credit for a child over 17 who is a full time student?
I THINK you can claim them up to age 23 or 24 IF they are a full-time student, and only a part-time worker.
Reply:Purchase a tax program and they will walk through you every possible scenario to try and get the best return for you.
Reply:Yes
Reply:Absolutely if you contribute at least 50% to their monetary care.