In cases where married parents get divorced or an unmarried couple with children is no longer together, child support is often necessary to ensure that the couple’s children will have the necessary financial resources. Determining how to calculate child support can sometimes be a complex process, and if either parent has children from another relationship, the parents may be unsure about how this will factor into the calculations. By understanding how Illinois law addresses these situations, parents can make sure child support orders will provide for their children’s needs while ensuring that they will be able to support themselves.
Child Support and Multi-Family Adjustments
Since 2017, Illinois has used what is known as an “income shares” method to calculate child support obligations. Under this method, the income earned by both parents is added together, and a “basic child support obligation” is determined based on their combined income and the number of children they share. The basic obligation is then divided between the parents based on each parent’s “percentage share” of their combined income. That is, if one parent earns 65 of the combined income, they will be responsible for 65 percent of the basic child support obligation. The parent who does not have primary physical custody of the couple’s children will typically pay their portion of the child support obligation to the parent who has the majority of the parenting time.
If either parent has children from a previous relationship, a “multi-family adjustment” will be made to their income prior to calculating the basic child support obligation, and the amount of child support they pay for other children will be deducted from their income. This amount may vary based on whether they have an existing child support order. If there is a current child support order in place, the multi-family adjustment will be the amount that is actually paid under this order. If there is no child support order in place, the multi-family adjustment will be the amount of child support that a person actually pays or 75 percent of what they would be required to pay if their child support obligations were calculated under the current guidelines in Illinois law. In some cases, a family court judge may choose not to perform a multi-family adjustment if they find that this would cause financial hardship for the child.
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