Question: what are the new child support laws in illinois?
Answer: New Illinois Child Support Law Taking Effect in 2017. Under present law, child support is based on the net income of the child support payer. It is 20% for one child, 28% for two, 32% for three, and 40% for four. Net income is defined in 750 ILCS 5/505 as gross income minus certain specified deductions.