Reviewed by Joshua P. Haid, Managing Partner
Is Illinois a No-Fault Divorce State?
Yes. Illinois is a no-fault divorce state, and has been since 2016. That means you do not have to prove your spouse did anything wrong — no affair, no cruelty, no blame — to end your marriage. The only ground for divorce in Illinois is irreconcilable differences: that the marriage has broken down and cannot be repaired (750 ILCS 5/401).
For many women, this is a relief once they understand what it truly means. You do not need evidence of wrongdoing to leave. You do not need your spouse’s permission. And your spouse cannot trap you in the marriage by refusing to agree or by insisting it was not their fault. If you have decided your marriage is over, Illinois law gives you the right to move forward.
What no-fault does not mean is that everything is simple. The reasons your marriage ended may not matter to the court, but everything that comes next — your children, your home, your finances — very much does. That is where having the right attorney matters. The Women’s Divorce & Family Law Group by Haid and Teich LLP has guided women through Illinois divorce for more than 15 years, and we can help you understand exactly what your no-fault divorce will involve.
Have questions about your own situation? Talk with a Chicago divorce lawyer who represents women, in a free and confidential consultation — call 312-445-8830.
What does no-fault divorce mean in Illinois?
No-fault means the court does not ask who caused the marriage to end. Instead of citing grounds like adultery or cruelty, you simply state that irreconcilable differences have caused the irretrievable breakdown of the marriage, that efforts to reconcile have failed, and that further attempts would not be in the family’s best interests. The court does not require you to prove or detail those differences — if you assert the marriage is broken, that is enough. This keeps the divorce itself from becoming a public battle over blame, and lets everyone focus on what actually needs deciding: parenting, support, and property.
What changed in Illinois divorce law in 2016?
Before 2016, Illinois required a spouse to prove “grounds” — a fault-based reason such as adultery, mental or physical cruelty, abandonment, habitual drunkenness, drug addiction, or impotence. The old law also forced couples to live apart for up to two years before a no-fault divorce could be granted, reducible to six months only if both spouses agreed. On January 1, 2016, Public Act 99-90 changed all of it: it eliminated every fault ground, made irreconcilable differences the sole basis for divorce, and removed that lengthy separation requirement.
If you have been told you must be separated for two years, that has not been true since 2016. You do not have to wait years, and you do not have to stay in a marriage you want to leave while a clock runs. That old requirement kept many people — women especially — trapped far longer than they wanted; it no longer applies. The result today is a simpler, less adversarial process that no longer forces a spouse to wait out a separation or gather evidence of misconduct just to be allowed to leave.
Do you have to be separated before a no-fault divorce in Illinois?
Not necessarily — and this is where outdated information causes confusion. There is no waiting period simply to file, and if both spouses agree the marriage is irretrievably broken, no separation period is required at all. A six-month period of living “separate and apart” matters in one specific situation: if a spouse contests the divorce, living apart for six months creates an irrebuttable presumption of irreconcilable differences — meaning the court will grant the divorce regardless. Importantly, “separate and apart” does not require separate homes; spouses can meet it while living under the same roof if they are no longer functioning as a married couple. (At least one spouse must have lived in Illinois for 90 days before the court enters the judgment.)
Can my spouse stop the divorce or refuse to agree?
No. This is one of the most important protections no-fault provides. Because Illinois is a pure no-fault state, if you assert that your marriage is irretrievably broken, the court accepts it — your spouse cannot prevent the divorce by refusing to participate, contesting fault, or arguing they did nothing wrong. At most, contesting can create a delay, which the six-month separation presumption then resolves. You do not need your spouse’s cooperation or consent to end your marriage.
What we can do for you
The end of your marriage may be no-fault, but protecting your future is not automatic. While the court will not weigh who was to blame for the divorce, the decisions that shape your life afterward — parenting time, child support, spousal maintenance, and the division of your home and savings — are decided on the facts and the law, and they deserve a strong advocate. We help you understand the process, protect what matters most to you, and move forward with confidence. You do not have to navigate any of it alone.
Related: Chicago Divorce · Child Custody · Spousal Support · Property Division
If you’re ready to understand your options, we’re here to help — free, confidential consultation.
