How to File for Divorce in Illinois Without a Lawyer (2026 Complete Guide)

Illinois is one of the most DIY-friendly states for divorce in the country. No mandatory waiting period, no fault grounds to navigate, a short 90-day residency requirement, and an excellent free document assembly tool at illinoislegalaid.org make an uncontested Illinois divorce very manageable without an attorney.

This guide walks you through every step of the Illinois DIY divorce process in plain English.

Disclaimer: This is general legal information, not legal advice. If your divorce involves significant assets, disagreements about children, or a complex financial picture, consulting a licensed Illinois family law attorney is strongly recommended.

Is a DIY Divorce Right for You?

DIY divorce works well when:

• Both spouses agree on all terms (uncontested divorce)
• You have no minor children, or both spouses fully agree on custody and support
• Your finances are relatively simple
• Neither spouse has hired an attorney

You should seriously consider hiring a lawyer if:

• You and your spouse disagree on any major issue
• Children are involved and allocation of parental responsibilities is disputed
• You own significant property, retirement accounts, or a business
• There is a history of domestic violence
• Your spouse has already hired an attorney

Illinois Divorce Requirements

Residency

At least one spouse must have been a resident of Illinois for 90 days before the court can grant the divorce.

Important distinction: Illinois's 90-day requirement applies before the court can enter the Judgment — not necessarily before you file. You can file for divorce before you've been in Illinois for 90 days, but the divorce cannot be finalized until the requirement is met.

This is the shortest residency requirement of the five states covered on this site — a significant advantage for recent Illinois arrivals.

Grounds for Divorce

Illinois eliminated all fault-based grounds for divorce in 2016. Illinois now has only one ground for divorce:

Irreconcilable differences — the only ground, used in every Illinois divorce.

Illinois law (750 ILCS 5/401) states that if spouses have lived separate and apart for at least 6 months, there is an irrebuttable presumption of irreconcilable differences. But you don't have to wait 6 months — courts can find irreconcilable differences without a separation period if the circumstances warrant it.

What this means in practice: For agreed divorces, you simply state that irreconcilable differences exist. No proof, no waiting for a separation period.

No Mandatory Waiting Period

Illinois has no mandatory statutory waiting period for divorce. Once all requirements are met and the paperwork is in order, your divorce can be finalized without delay.

Local court rule note: Some Illinois judicial circuits have their own local procedural requirements — for example, the 23rd Judicial Circuit (Kane County area) has a 30-day rule from the summons return date, which is often waivable in uncontested cases. Check with your specific county's circuit court for local rules.

Illinois's Unique Terminology: Allocation of Parental Responsibilities

If you have children, the most important thing to know is that Illinois completely restructured its custody terminology in 2016:

• "Custody" is no longer used in Illinois law
• "Allocation of Parental Responsibilities" replaces it — covering both decision-making and parenting time
• "Decision-making responsibilities" replaces "legal custody"
• "Parenting time" replaces "visitation"
• "Parenting plan" is required in all divorces with minor children

You'll see these terms throughout all Illinois divorce forms. Understanding them before you start makes the paperwork much less confusing.

Illinois's Best Free Resource: illinoislegalaid.org

Illinois Legal Aid Online (illinoislegalaid.org) is one of the best state legal aid websites in the country. It features:

• Document assembly — answer questions online, generate completed Illinois divorce forms
• Plain-English guides for every divorce scenario
• Free, maintained by the Illinois legal aid community
• Covers Chicago (Cook County), suburban counties, and downstate

Use this before anything else. The document assembly tool produces ready-to-file forms tailored to your specific situation.

Chicago vs. Downstate — A Real Difference

Illinois divorce experience varies significantly based on where you file:

Cook County (Chicago):

• Busiest court system in Illinois
• Has its own specific local forms and procedures
• Dedicated Domestic Relations Division
• Longer wait times for hearings
• Additional local requirements

Collar counties (DuPage, Lake, Kane, Will, McHenry):

• Moderately busy, more streamlined than Cook
• Each has its own local forms or preferences

Downstate counties:

• Generally faster processing
• Smaller caseloads mean quicker hearing dates
• Local courthouse staff often more accessible

Key takeaway: Always check your specific county's circuit court website before filing — local forms and requirements matter in Illinois.

Where to File

File at the Circuit Court in the county where either spouse resides.

Major Illinois counties:

Property Division in Illinois

Illinois is an equitable distribution state — marital property is divided fairly, not automatically 50/50.

Marital property (subject to division):

• Property acquired by either spouse during the marriage
• Income earned during the marriage
• Retirement contributions made during the marriage
• Debts incurred during the marriage

Non-marital property (generally not divided):

• Property owned before the marriage
• Inheritances received during the marriage
• Gifts given to one spouse specifically
• Property excluded by prenuptial agreement
• Property acquired after a legal judgment of legal separation

Illinois factors for equitable distribution:

• Contribution of each spouse to acquisition, preservation, or increase in value of marital property
• Dissipation of marital assets by either spouse
• Value of each spouse's non-marital property
• Duration of the marriage
• Economic circumstances of each spouse
• Obligations from prior marriages
• Prenuptial agreements
• Age, health, occupation, and earning capacity
• Custodial arrangements for children
• Tax consequences
• Any other relevant factors

In an agreed divorce, you and your spouse can divide property however you both accept. Courts approve any reasonable voluntary agreement.

Step-by-Step: How to File for Divorce in Illinois

Step 1 — Confirm Residency

Verify at least one spouse has been an Illinois resident for 90 days (or will be by the time the divorce is finalized — you can file before meeting the requirement).

Step 2 — Get Your Forms

Best source: illinoislegalaid.org — document assembly generates completed forms.

Alternative: illinoiscourts.gov — some standardized forms available.

Cook County: cookcountycourt.org has Cook-specific forms and instructions — use these if filing in Cook County.

Step 3 — Complete the Petition for Dissolution of Marriage

The Petition for Dissolution of Marriage starts your case. You are the petitioner; your spouse is the respondent.

The petition states:

• Both parties' names and addresses
• Date and place of marriage
• Grounds: irreconcilable differences
• Length of residency in Illinois
• Whether children are involved
• What you're requesting

Step 4 — File at the Circuit Court

Take your completed forms to the Circuit Clerk's office in your county. Bring:

• Completed Petition and any attachments
• Government-issued photo ID
• Filing fee: approximately $210–$400 depending on county

Filing fee examples:

• Cook County: ~$337
• DuPage County: ~$264
• Lake County: ~$250
• Sangamon County: ~$210

Fee waiver: File an Application to Sue or Defend as an Indigent Person if you can't afford the fee.

E-filing: Illinois has a statewide e-filing system at efile.illinoiscourts.gov. Most counties accept e-filing for divorce cases.

Step 5 — Serve Your Spouse

Your spouse must be served with the Summons and Petition.

Service options:

• Sheriff service — standard, typically $25–$60 depending on county
• Private process server — faster in some cases, similar cost
• Entry of Appearance — your spouse voluntarily files with the court, waiving service. Fastest and free for agreed cases.

Your spouse has 30 days to respond after service.

Step 6 — Respond Period and Agreement

In an uncontested case, your spouse either files an Entry of Appearance (confirming they're aware of the case and don't require formal service) or a formal Answer.

Use this time to finalize your Marital Settlement Agreement (MSA) — the document covering all property, debt, and support terms.

Step 7 — Parenting Plan (If Children)

If you have minor children, draft your Parenting Plan — Illinois requires a written plan allocating decision-making responsibilities and parenting time for every divorce with children.

The illinoislegalaid.org document assembly tool generates a compliant Parenting Plan.

Step 8 — File Prove-Up Documents

Illinois uncontested divorces typically require a Prove-Up hearing or submission. You file your MSA, Parenting Plan (if applicable), and a Joint Petition for Simplified Dissolution (if eligible) or a standard Judgment.

In many Illinois counties for uncontested cases, you can submit documents by mail or e-file without appearing in person. Check with your specific county.

Step 9 — Final Hearing or Prove-Up

For uncontested cases, the prove-up is often brief — 5–15 minutes. The judge reviews your MSA and Parenting Plan, asks a few questions, and enters the Judgment of Dissolution of Marriage.

Some Cook County cases can be handled entirely on paper without a court appearance. Downstate counties often require a brief in-person prove-up.

Step 10 — File the Judgment and Get Certified Copies

After the judge signs the Judgment, file it with the Circuit Clerk. Get certified copies — you'll need them for name changes and property transfers.

Illinois's Joint Simplified Dissolution

Illinois offers a streamlined Joint Simplified Dissolution of Marriage for qualifying couples — similar to Florida's Simplified Dissolution.

You qualify if ALL are true:

• Married less than 8 years
• No children (and no pregnancy)
• Neither spouse has an interest in real property
• Neither spouse has retirement plan benefits over $10,000
• Combined marital assets under $50,000
• Each spouse's gross income under $30,000/year (combined under $60,000)
• Both spouses waive maintenance (alimony)
• Both spouses have disclosed all assets and liabilities

If you qualify, the process is faster and simpler. File a Joint Petition for Simplified Dissolution — both spouses file together.

How Long Does an Illinois Divorce Take?

What Does It Cost?

Free Resources

• illinoislegalaid.org — Document assembly, guides, free legal aid
• illinoiscourts.gov — Illinois Courts official site, some forms
• Your county Circuit Clerk — Local forms and requirements
• Illinois State Bar Association — isba.org/public for lawyer referrals

Last reviewed: March 2026 | Always verify requirements with your county Circuit Clerk.