Proposed Changes to Illinois Child Support in 2017

If signed into law by Governor Rauner, House Bill 3982 would introduce comprehensive changes to Illinois child support laws for the first time in over thirty years that would become effective as of July 1, 2017.

The pending bill proposes that Illinois child support be based upon the “income shares model,” which would consider both parents’ income and the proportion of parental income that the child would have received if his or her parents lived together in the determination of child support.  Currently, Illinois child support is based upon the “percentage of income model,” which sets child support as a percentage of the child support payor’s net monthly income.

Illinois is one of eight states that currently use the percentage of income model to determine child support.  House Bill 3982 was sent to Governor Rauner for review on June 27, 2016 and, if it is signed into law, Illinois would join thirty-nine other states, Guam, and the Virgin Islands in using the income shares model to determine child support.

Please contact Jennifer L. Lavin, P.C. at (312) 919-8857 to schedule a complimentary consultation to discuss how to meet your child support needs.



Chicago Tribune, “From the Community:  Hastings Modernizing Child Support Laws”:


Illinois General Assembly, “Bill Status of HB3982”:


Illinois State Bar Association, “ISBA Statehouse Review for June 2, 2016”:


National Conference of State Legislatures, “Child Support Guideline Models by State”: