See the income phase-out and estimated refundable portion.
Assumes all listed children satisfy age, relationship, residence, dependency, citizenship and valid-SSN rules. Uses modified AGI entered as AGI. Tax liability is the available liability for this credit after other applicable credits. Excludes other-dependents credit, advance-payment reconciliation and the alternative refundable calculation for families with three or more children. In 2021 children may be under 18; otherwise under 17.