Turbotax 2023 Amendment - Child Tax Credit issue

You lose the child tax credit in the year in which the child turns 17.   Once they are older than 16, you get the $500 credit for other dependents instead of the child tax credit.   If you claimed her as a dependent on a 2023 return, you should not have received the CTC.   You should only have the credit for other dependents ---the one for $500 on line 19 of your 2023 Form 1040.

A child age 17 or older is not eligible for the Child Tax Credit.  They are eligible for the Other Dependent credit of $500

During tax year 2021 a child under the age of 18 was eligible for the Child Tax Credit.  However, that was only for that tax year and no other.

Thanks for your help, DoninGA! I was checking my original tax return and discovered that I got $1,577 in child tax credit for my son, but I did not get the $500 you mention I should had gotten for my daughter, and nor am I getting it now in my amendment. Would you have an idea why this is happening?

The $500 credit is not refundable.  It can lower the tax you owe.

Thanks, xmybabes0

Your information clarifies my question about the $500 credit, since I am entitled to a small refund in my amended tax return, TurboTax will not be using it.