Illinois has established a specific formula for calculating the amount and duration of spousal maintenance obligations or awards. Get an estimate for alimony payments and duration.Get an idea on how much money a month you can expect to pay, and for how you can expect to pay it. Illinois uses a complex formula for calculating alimony. The calculator uses the guideline method to estimate spousal support. Our Naperville, IL spousal maintenance lawyers can work to help you achieve the most desirable outcome to your claim. The judge ruled that he could grow mushrooms, but that he would have to figure out a way to pay the spousal support that was awarded to his ex-wife. This saves me money and fills up some down time so I don't spend more money lol. We will request tax forms and other financial documents to verify this information when you complete a financial aid application. For an estimate of how GPO could reduce your.