Illinois Divorce Cost Estimator

A divorce in Illinois costs between $3,000 for an uncontested case and $12,500 or more for a contested case, based on 2022 median figures. Court filing fees range from $210 to $388 depending on the county, with attorney fees adding the largest variable expense at a median rate of $350 per hour. Additional costs include parenting classes, mediation, and process server fees.

Illinois divorce filing fees vary significantly by county, ranging from $210 to $388. Cook County charges approximately $388, while DuPage County charges approximately $343. There is no statewide uniform filing fee in Illinois. Verify the exact amount with your local circuit clerk before filing your Petition for Dissolution of Marriage.

Illinois divorce attorneys charge a median hourly rate of $350, with rates ranging from $200 in rural counties to $500 or more in the Chicago metropolitan area. Initial retainers typically range from $3,000 to $10,000 depending on case complexity. Uncontested divorces may be handled for a flat fee of $1,500 to $3,500, while contested cases with custody disputes can exceed $15,000 in total attorney fees.

Yes, Illinois residents who cannot afford court fees can apply for a fee waiver using Form FW-CIV (Application for Waiver of Court Fees - Civil) under 735 ILCS 5/5-105. Eligibility is generally based on income at or below 200% of the federal poverty level or receipt of means-tested public benefits. If approved, the waiver eliminates filing fees, service fees, and other court costs entirely.

Illinois courts frequently order mediation in contested custody and parenting disputes under 750 ILCS 5/602.10, though it is not mandatory in every divorce. Mediator fees in Illinois range from $150 to $400 per hour, with a typical mediation process requiring 3 to 8 sessions. Some Illinois counties offer reduced-cost court-annexed mediation programs. Mediated settlements generally cost significantly less than proceeding to trial.

An uncontested divorce in Illinois — where both spouses agree on all terms including property division, spousal maintenance, and parenting arrangements — costs approximately $3,000 in total. This includes $210 to $388 in filing fees, $50 to $100 for process service, and $1,500 to $3,500 in attorney fees if using a flat-fee arrangement. Some petitioners who file pro se reduce costs to under $500.

Hidden Illinois divorce costs often include parenting education classes ($35–$75 per parent), real estate appraisals ($300–$600), business valuations ($5,000–$15,000), guardian ad litem fees ($2,500–$7,500), and certified copy fees ($5–$25 each). Dissipation claims under 750 ILCS 5/503 — where one spouse alleges the other wasted marital assets after the irretrievable breakdown began — require forensic accounting that can cost $2,000 to $10,000.

Yes, Illinois allows pro se (self-represented) divorce filing, and the Illinois Courts Self-Help Center at illinoiscourts.gov provides standardized forms for dissolution of marriage. Pro se filing reduces costs to filing fees ($210–$388) plus service costs ($50–$100). However, cases involving significant assets, spousal maintenance disputes, or contested parenting arrangements benefit substantially from legal representation at $350 per hour median.