This list contains current links to state divorce forms where available. Some states may have additional requirements or restrictions.Filing Procedures: Familiarize yourself with the divorce filing procedures in Illinois. To calculate the accurate amount of support, the court will look at the weekly gross income of the parties. Download and complete Divorce, Child Support, and Maintenance forms from the Illinois Office of the Courts. Income Shares Model: The primary method for calculating child support in Illinois is based on the combined income of both parents. Use the alimony calculator below to estimate your spousal maintenance in Illinois. Requesting an order for your spouse to help pay for your attorney (in a divorce matter), Mass. When an individual files for divorce, they must also petition for spousal support, maintenance, or alimony. If you plan on requesting the payment record through the mail, please call first to find out the fee amount and specific procedures.