Illinois Divorce Timeline Estimator

An uncontested divorce in Illinois typically finalizes in 2 to 3 months from filing, while contested cases average 12 to 18 months. Under 750 ILCS 5/401, Illinois imposes no mandatory waiting period, so duration depends on whether spouses agree on property division, spousal maintenance, and parenting responsibilities. Cases involving complex asset discovery or custody disputes extend timelines significantly.

Illinois has no mandatory waiting period for divorce. Under 750 ILCS 5/401(a-2), the court can enter a dissolution judgment as soon as the 90-day residency requirement is satisfied and both parties acknowledge irreconcilable differences. The six-month separation rule applies only when one spouse denies the marriage is irretrievably broken, creating an irrebuttable presumption of breakdown.

Illinois does not require any mandatory separation period when both spouses agree the marriage is over. Under 750 ILCS 5/401(a-2), living separate and apart for six months creates an irrebuttable presumption of irreconcilable differences, but this provision is only relevant when one party contests the divorce. Couples in agreement can file and proceed immediately after meeting the 90-day residency requirement.

An uncontested divorce in Illinois typically takes 2 to 3 months from the filing date. Both parties must agree on all terms including property division, spousal maintenance, and parenting arrangements. The process requires meeting the 90-day residency threshold under 750 ILCS 5/401, filing a joint simplified petition or marital settlement agreement, and obtaining a court hearing date.

The fastest path is a joint simplified dissolution under 750 ILCS 5/452, available to couples married fewer than 8 years with no children, limited assets (under $50,000 combined marital property), and no real estate. This process can finalize in as little as 4 to 6 weeks. For couples who don't qualify, filing an uncontested petition for dissolution with a complete marital settlement agreement is the next fastest option at 2 to 3 months.

The responding spouse has 30 days from the date of service to file an appearance and answer to the Petition for Dissolution of Marriage. If no response is filed within 30 days, the petitioner can request a default judgment under Illinois Supreme Court Rules, allowing the court to proceed on the petitioner's proposed terms. Extensions may be granted upon request before the deadline expires.

Yes, both parents must complete a mandatory 4-hour parenting education class under 750 ILCS 5/404.1 when minor children are involved. The class must be completed within 60 days of the initial case management conference and costs approximately $50. Topics include the impact of divorce on children, co-parenting communication, and conflict resolution. Courts may impose sanctions including contempt findings for non-compliance.

A contested divorce in Illinois typically takes 12 to 18 months, though complex cases involving substantial assets or custody disputes can exceed 2 years. The timeline includes 30 days for the respondent's answer, court-ordered mediation (usually 1–2 months), a discovery period of 3–6 months for financial disclosure, and trial scheduling which may add another 3–6 months depending on county court backlogs. The median cost reaches $12,500 with attorneys averaging $350 per hour.