The Child Support Application is available for download in Portable Document Format (PDF). It can then be filled out on your computer.Complete the on-line application for free child support services if you live in Illinois and the dependent child(ren) lives with you. Download and complete Divorce, Child Support, and Maintenance forms from the Illinois Office of the Courts. A form to let the other parent's employer know to withhold child support from paychecks. To learn how to fill out the forms and file them with the court, read the HOW TO GET AN ORDER FOR. SUPPORT instruction sheet and the instructions on the forms. DO NOT fill out the rest of this form unless the judge tells you complete it. This method is based on both parents' income and the number of children included in the child support order using the Illinois child support guidelines. Use our Easy Form programs to help you create the forms you need.