If the child is age 17 or older in 2020 they are not eligible for the child tax credit.
If the child is under the age of 17, then you need to verify your answers you entered for them as a dependent in the My Info section of the program.
Verify their date of birth, that you selected they were your Child, that they lived in your home for the whole year, that the did NOT provide over one-half of their own support, that there was not another person in the household supporting them. That you were the parent who could claim the child as a dependent. That they have a valid social security number.
If everything is correct and you are not getting the CTC, delete them as a dependent and then re-enter.
