1. Illinois Division of Child Support Services
State agency for child support establishment, enforcement, and modification. Serves mothers and custodial parents with paternity establishment, support order setup, enforcement, and modifications. Bring birth certificates, recent pay stubs, photo ID, and any prior support orders. Modifications can be requested when income or circumstances change. Call (800) 447-4278, open Mon-Fri 8am-5pm.
(800) 447-4278 · 509 S 6th St, Springfield, IL 62701