PARENTAGE/MARRIAGE ACT-INTERST

Amends the Illinois Parentage Act of 1984 and the Marriage and Dissolution of Marriage Act. Provides that a child support installment that becomes due based upon the payment frequency as ordered by the court shall become a separate and distinct judgment. Provides that when the judgment remains unpaid for 30 days from the date due, simple interest shall begin to accrue daily on a per diem basis at the rate of 9% per annum for each day beyond the 30 day grace period. Sets out a formula for calculating the per diem interest. Provides that each child support payment made within a single installment period is to be credited first to the current support installment due with any excess or subsequent payment during the same period being credited to past due support.