This document discusses various tax credits including refundable and nonrefundable credits. It provides information on: - The earned income tax credit which is refundable even if it exceeds tax liability and can be claimed by employees, self-employed individuals, and those without children. - Refundable and nonrefundable child tax credits which are based on adjusted gross income and qualifying children. Nonrefundable credits are limited by tax liability. - The child and dependent care credit which is available for those who work, are self-employed, looking for jobs, or full-time students with qualifying child care expenses.