Illinois Child Support Chart

Illinois Child Support Worksheet

Child support in Illinois is determined under 750 ILCS 5/505, the statute that governs how financial support for children is calculated when parents no longer live together. The law establishes a framework intended to account for parental income, the needs of the child, and the overall financial realities of both households.

Understanding how Illinois child support works can help parents plan ahead, reduce uncertainty, and make informed decisions during an already difficult time. The statute provides guidelines, but no two families are exactly alike, which is why support determinations can vary from case to case.

To assist parents in gaining a general understanding of how child support may be calculated, Stange Law Firm, PC provides access to the following tool:

This worksheet offers an estimate based on the information entered. The State of Illinois also provides an official calculator, which may be reviewed separately for comparison.

Important Information About Illinois Child Support Calculations

The results generated by any child support calculator are estimates only. Courts are not required to order the exact amount shown in a worksheet and may adjust child support based on the specific facts of a case.

Most calculators are built on assumptions that may not apply in every situation, including:

One parent having primary parenting time

No shared or split parenting arrangements

No extraordinary medical, educational, or child-related expenses

Additional factors — such as parenting time allocations, childcare costs, health insurance premiums, tax considerations, and other statutory adjustments — can affect the final child support amount ordered by the court.

This worksheet is provided for informational purposes only and does not constitute legal advice. The court always retains the authority to determine the final amount of child support, and no estimate should be relied upon as a guarantee of the outcome.

Parents seeking official guidance and administrative resources may also review information provided through Illinois Child Support Services.

Illinois Child Support Legal Assistance

Because even small changes in income, expenses, or parenting schedules can significantly impact child support calculations, legal guidance can be valuable when establishing, modifying, or enforcing child support.

If you need help with an Illinois child support matter, the attorneys at Stange Law Firm, PC are available to assist clients throughout the state from multiple office locations.