Newborn and stillborn tax credit. Establishes a refundable income tax credit for taxable years 2026 through 2030 for married individuals in an amount equal to $2,000 per eligible birth so long as such eligible birth is not also the birth of a child by a surrogate. The bill also allows individuals and married individuals filing jointly to claim a refundable income tax credit in an amount equal to $2,000 per stillborn birth so long as such stillborn birth is not also the birth of a child by a surrogate. The bill specifies that only one tax credit may be claimed for each eligible birth or stillborn birth.