Adoption Tax Credit Refundability Act of 2025

This bill makes the federal adoption tax credit refundable, allowing eligible taxpayers to receive a refund even if they owe no income tax. It directly affects families who paid qualified adoption expenses (like court fees or agency costs) but previously couldn't claim the full credit due to its non-refundable status. Key provisions include redesignating the credit in tax law as "section 36C" (making it refundable), adding standardized third-party affidavits to verify adoptions, and ensuring existing credit carryforwards are treated as refundable starting in 2025. The changes take effect for tax years beginning after December 31, 2024.