Is Illinois a No-Fault State? At-Fault Rules and the 50% Bar Explained (2026)

Short answer: no.

Longer answer: Illinois is one of the states where who was at fault decides everything, and where a single percentage point can turn a six-figure claim into nothing at all.

## ⚡ Quick Answer Illinois is an at-fault state. There is no PIP and no no-fault medical coverage. The at-fault driver's insurer pays. Under 735 ILCS 5/2-1116, your damages are reduced by your share of fault — and if your fault is more than 50%, you recover nothing. Minimum liability limits are 25/50/20 under 625 ILCS 5/7-203.

📝 Record your accident with NowAccident now → — free, three minutes. Fault is decided by evidence, not by memory.

What "at-fault" actually means for you

In a no-fault state like Florida, your own insurer pays your medical bills first, no matter who caused the crash. It's automatic, capped, and fast.

Illinois has none of that.

The practical consequence: in Illinois, nothing gets paid until fault is sorted out. That's why the fault percentage is not a technicality. It's the whole case.

The 50% bar: what the statute says

735 ILCS 5/2-1116 is the governing statute. The rule Illinois courts apply:

A plaintiff whose contributory fault is more than 50% of the proximate cause of the injury or damage is barred from recovering damages.

Otherwise, damages are reduced in proportion to the plaintiff's fault.

A note on how this gets described. You'll see the rule stated three different ways online — "less than 50%," "50% or less," "more than 50% bars." The statutory language turns on more than 50%. If you're at exactly 50%, that reading lets you recover half. It's a distinction that has decided real cases, so cite the statute, not a blog. Including this one.

Where does that percentage come from?

An adjuster. On day one. Over the phone.

This is the part most people never see. The insurer's file has a number in it long before anyone mentions it out loud. And the arithmetic is brutal:

A 15% fault assignment on a $150,000 claim costs you $22,500 before a single word of negotiation.

What gets used to justify the number:

• A remark you made at the scene ("I might have been going a little fast")
• Speed, texting, or any distraction they can imply
• Failure to react — the "you could have avoided it" argument
• Vehicle damage patterns
• The absence of evidence contradicting them

Notice the last one. A vacuum gets filled with the adjuster's version. The photos you took in the first ten minutes are the only thing that fills it with yours.

📝 A missing photo is a fault percentage you can't argue with. Record the scene with NowAccident — free, three minutes.

What insurance is required in Illinois?

Under 625 ILCS 5/7-203 and 625 ILCS 5/7-601, every registered vehicle must carry liability coverage of 25/50/20:

Illinois also requires uninsured motorist (UM) coverage in every policy under 215 ILCS 5/143a, at minimum 25/50. Insurers must also offer UM limits matching your liability limits, and underinsured motorist (UIM) coverage.

Notice how small $25,000 is. One ambulance ride, one MRI, one surgery, and it's gone. Which is why [what happens when the other driver is uninsured](/illinois/uninsured-driver/) is a question worth answering before you need it.

What are the moving pieces of an Illinois claim?

1. Fault gets assigned. By adjusters first, by a jury only if it goes that far.
2. Damages get calculated. Medical bills, lost wages, future care, property damage, pain and suffering.
3. Damages get reduced by your fault percentage.
4. If you're over 50%, everything above becomes irrelevant.
5. Policy limits cap the result — the other driver may only carry $25,000.
6. Liens come off the top. Health insurers, medical providers, Medicare, Medicaid.

Illinois also allows prejudgment interest in personal injury and wrongful death actions under 735 ILCS 5/2-1303, added in 2021. Confirm the current rate and mechanics with counsel — it's one of the few things that pushes an insurer to move.

Does Illinois cap damages?

No. Illinois has no cap on compensatory damages in ordinary negligence cases.

The Illinois Supreme Court struck down statutory damage caps twice — in Best v. Taylor Machine Works (1997) and again, for medical malpractice caps, in Lebron v. Gottlieb Memorial Hospital (2010), both on state constitutional grounds.

That's genuinely unusual, and it's why serious Illinois claims can be worth a great deal — assuming there's coverage to reach and assuming you stay on the right side of the 50% line.

Comparing Illinois to its neighbors

Cross the border into Michigan and the whole framework changes. Cross into Missouri and there's no bar at all. If your crash involved an out-of-state driver, or you recently moved, this table is worth a second look.

Frequently asked questions

Is Illinois a no-fault state? No. Illinois is an at-fault state. There's no PIP, and the at-fault driver's insurer is responsible for damages.

What is the 50% rule in Illinois? Under 735 ILCS 5/2-1116, a plaintiff more than 50% at fault recovers nothing. At 50% or less, damages are reduced proportionally.

Does Illinois have PIP? No. Medical payments coverage is available as an optional add-on, but there's no mandatory no-fault medical benefit.

What is the minimum insurance in Illinois? 25/50/20 — $25,000 per person and $50,000 per crash for bodily injury, $20,000 for property damage (625 ILCS 5/7-203).

Does Illinois cap pain and suffering damages? No. The Illinois Supreme Court struck down statutory caps in Best v. Taylor Machine Works (1997) and Lebron v. Gottlieb (2010).

Who decides my fault percentage? The insurance adjuster proposes it. A jury decides it, if the case gets that far. Evidence decides both.

📝 Fifty-one percent is the difference between everything and nothing. Record your accident with NowAccident — free.

Sources

• 735 ILCS 5/2-1116 — modified comparative fault
• 735 ILCS 5/2-1303 — prejudgment interest
• 625 ILCS 5/7-203, 5/7-601 — mandatory liability insurance
• 215 ILCS 5/143a — uninsured and underinsured motorist coverage
• Illinois Department of Insurance — Comparative Negligence consumer guidance
• Best v. Taylor Machine Works, 179 Ill. 2d 367 (1997)
• Lebron v. Gottlieb Memorial Hospital, 237 Ill. 2d 217 (2010)

Disclaimer

This article is general information about Illinois law as of the last updated date. It is not legal advice and does not create an attorney-client relationship. Sources describe the 735 ILCS 5/2-1116 threshold inconsistently ("less than 50%" vs "more than 50% bars"). Confirm the operative statutory text and controlling case law before relying on either formulation. Verify current statutes at ilga.gov and consult a licensed Illinois attorney. Nothing here is insurance advice.