How to file for divorce in Illinois — without a lawyer
Illinois lets you handle your own divorce, and for uncontested cases it's very doable: file in the Circuit Court, use the state's no-fault ground — irreconcilable differences — follow the steps below, and use the official Illinois forms. This page gives you the real requirements, with links to the official sources to verify each one.
Illinois divorce: the key facts
Residency note: 90 days residency.
Verify with the official source: Illinois court self-help ↗Official forms ↗Find your court ↗
The 6 steps, start to finish
- 1
Confirm you can file in Illinois
At least one spouse generally must have lived in Illinois for 90 days (about 3 months) before filing. If you qualify, you'll file in the Circuit Court — usually in the county where you or your spouse lives.
- 2
Get the official forms
Illinois's own forms are free. You'll typically need the petition (Petition for Dissolution of Marriage (statewide standardized forms)), a financial disclosure (Financial Affidavit (Family & Divorce Cases)), and with children, the support worksheet (HFS child-support calculation). CaseForward's guided interview fills in the decisions those forms ask you to make.
- 3
Complete your paperwork carefully
Incomplete or inconsistent paperwork is the #1 reason self-filed divorces get bounced. Work through each form slowly; if you and your spouse agree on everything, prepare a settlement agreement and a parenting plan / allocation judgment to attach.
- 4
File with the court
The filing fee varies by county — call your clerk of court to confirm the exact amount. If you can't afford it, you can ask the court for a fee waiver. Many Illinois courts accept electronic filing through eFileIL.
- 5
Serve your spouse
Your spouse must formally receive the papers — usually by sheriff, private process server, or (in agreed cases) a signed waiver/acceptance of service. Keep the proof of service; the court needs it.
- 6
Wait, then finalize
Illinois has no single statewide waiting period — how fast the decree comes back mostly depends on the court's calendar and whether your case is uncontested. In an uncontested case the judge reviews your paperwork (sometimes with a short hearing) and signs the final decree.
Do the paperwork with a guide, not from scratch
CaseForward walks you through every decision, generates your court-ready Illinois documents, and shows you full previews free. One price — $99 for the complete DIY packet, or $29 for a single document. No subscription.
Child support in Illinois: Income Shares
Combines both parents' incomes and divides the estimated cost of raising the child in proportion to each parent's share of the combined income. Used by the majority of states (41).
Illinois divorce FAQ
Do I need a lawyer to get divorced in Illinois?
No. Every state, including Illinois, lets you represent yourself in a divorce (called appearing "pro se"). Self-representation works best for uncontested cases where you and your spouse agree on the terms. If your case involves abuse, hidden assets, or a real dispute over the children, talk to a licensed Illinois attorney — many offer free consultations, and you may qualify for legal aid.
How long do I have to live in Illinois before I can file for divorce?
At least one spouse generally must have lived in Illinois for 90 days (about 3 months) before filing. Always verify the current rule with the court's own self-help resources before filing.
How long does an uncontested divorce take in Illinois?
Illinois has no single statewide waiting period — how fast the decree comes back mostly depends on the court's calendar and whether your case is uncontested. Uncontested cases with complete, correctly-filled paperwork are consistently the fastest.
How much does it cost to file for divorce in Illinois?
The filing fee varies by county — call your clerk of court to confirm the exact amount. If you can't afford it, you can ask the court for a fee waiver. Beyond the court fee, doing the paperwork yourself is the biggest saver: preparing your own documents (free preview, $99 for the complete court-ready packet on CaseForward) instead of paying a few thousand dollars in attorney fees.
What are the grounds for divorce in Illinois?
Illinois accepts a no-fault ground — irreconcilable differences. It is a pure no-fault state, so you don't need to prove any misconduct. Note: a separation period of about 180 days applies in some circumstances.
How is child support calculated in Illinois?
Illinois uses the Income Shares model. Combines both parents' incomes and divides the estimated cost of raising the child in proportion to each parent's share of the combined income. Used by the majority of states (41). You can run your numbers with CaseForward's free Illinois child-support estimator, then confirm with the state's official worksheet.
Helpful Illinois links & guides
Court self-help center ↗Official forms ↗E-filing (eFileIL) ↗Find your court ↗
Free: The Uncontested Divorce Filing Checklist
The whole path on two printable pages — what to gather, decide, prepare, and file. We'll email it to you, plus a short series of practical tips (unsubscribe anytime).
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