Relating to the accrual of interest on delinquent child support owed by obligors who are incarcerated.

HB 3813 modifies Texas child support law to limit interest accrual for incarcerated individuals. It sets a 3% simple annual interest rate on overdue child support arrears for people confined in jail or prison, starting from their incarceration date until release. This change applies only to cases where incarceration begins on or after September 1, 2025, with pre-existing cases governed by prior law. The bill directly affects incarcerated obligors (those owing child support) and the child support recipients who would see slower growth in accumulated debt during incarceration.