Child Support and Alimony in Illinois. Download and complete Divorce, Child Support, and Maintenance forms from the Illinois Office of the Courts.Our Will County attorneys can help determine the amount of spousal support payments in your divorce case. Contact us at . Complete the on-line application for free child support services if you live in Illinois and the dependent child(ren) lives with you. Spousal maintenance is not automatically granted in Illinois divorce cases, and it will typically only be awarded if a spouse can demonstrate a financial need. Alimony can be granted to either party, but it is dependent upon a number of variables. Learn how child support is calculated in Illinois, whether parents can agree to support below the guidelines, and how to change the amount of support. The provision now reads that "the payor has no obligation to pay child support or maintenance or both from a prior relationship. What is your recourse for nonpayment of maintenance (formerly known as alimony) in Illinois?