Relating to a court order for retroactive child support, including for retroactive child support beginning on the date of the child's conception.

HB 1980 amends Texas Family Code to establish a presumption that courts should order retroactive child support beginning on the earliest possible date of a child's conception, rather than starting at birth or later. It requires courts to determine this date using medical evidence (per Health and Safety Code) or parental testimony, and mandates that courts include an equitable share of prenatal/postnatal medical expenses for the mother and child in retroactive support orders. The bill applies only to paternity orders or acknowledgments issued on or after its effective date (September 1, 2025), not to past cases. This change directly affects parents ordered to pay child support and ensures support covers expenses from conception forward.