Here's what you need to know about the CTC, Child Tax Credit, and the refundable portion, the ACTC, Additional Child Tax Credit.
Know that the CTC is up to $1,000 per qualifying child. If you claim the nonrefundable child tax credit but do not qualify for the full amount, you may also be able to take the refundable ACTC. You must meet various criteria regarding the qualifying child.
Know that you can’t take the refundable portion of the Child Tax Credit if you or your spouse (if filing a joint return) file a Form 2555 or Form 2555EZ (related to excluding foreign earned income)