You may benefit from the credit for other dependents
Taxpayers with dependents who don’t qualify for the child tax credit may be able to claim the credit for other dependents. The maximum credit amount is $500 for each dependent who meets certain conditions. These, include:
Dependents who are age 17 or older. Dependents who have individual taxpayer identification numbers. Dependent parents or other qualifying relatives supported by the taxpayer. Dependents living with the taxpayer who aren’t related to the taxpayer.
The credit begins to phase out when the taxpayer’s income is more than $200,000. This phaseout begins for married couples filing a joint tax return at $400,000.