Parents in Illinois have an obligation to provide financial support to their children. This is true whether the parents are together or separate. It is not as difficult when the parents are together since most of the expenses are shared anyways. However, it becomes a little more difficult if the parents are divorced or were never together in the first place. That is why the law has implemented child support.
The courts want to ensure that both parents are providing financial support for their children, not just the custodial parent. Therefore, one parent generally is ordered to pay the other child support to accomplish this goal. Child support is determined in Illinois by the child support guidelines. These establish the percentage of a non-custodial parent's net income that will go to the other parent, depending on the number of children the couple has together.