Real numbers for Illinois — filing fees, attorney rates, contested vs. uncontested costs, county breakdowns, and what you can do to reduce your total.
✓ Filing fees verified against Illinois court records · Updated July 2026
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Calculate My Illinois Divorce Cost →The cost of divorce in Illinois ranges from roughly $3,600 for a simple uncontested case to $41,600 or more for a contested divorce that goes to trial. The single biggest factor is not the state — it is how much you and your spouse disagree.
Illinois eliminated fault-based divorce in 2016. The only ground is now "irreconcilable differences."
| Divorce Type | Low Estimate | Typical | High Estimate |
|---|---|---|---|
| Uncontested, no children | $300 | $1,200 | $6,000 |
| Uncontested with children | $3,600 | $6,000 | $9,000 |
| Contested, no trial | $14,300 | $26,000 | $41,600 |
| Contested, goes to trial | $41,600 | $49,400 | $50,000+ |
| Savings going uncontested | Up to $20,000 per spouse | ||
The court filing fee in Illinois is paid when you submit your divorce petition to the court. This is a fixed, unavoidable cost regardless of whether your divorce is contested or uncontested.
Filing fee note: $300 in Cook; varies by county
| Cook County (Chicago) | $388 |
| DuPage | $264 |
| Lake County | $264 |
| Will County | $264 |
| Kane | $264 |
Divorce attorney hourly rates in Illinois average $340 per hour.
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Open Illinois Calculator →Filing fees based on Illinois court records as of July 2026. This is for informational purposes only and is not legal advice.