Kansas 50% Comparative Fault Rule Explained

Kansas Comparative Fault: How the 50 Percent Rule Affects Your Injury Claim

After a crash, one of the first questions people ask is whether it matters that they were partly to blame. In Kansas it matters a great deal, because of one number: 50 percent. Here is how the rule works, what it does and doesn't let the other side argue, and the other Kansas rules that shape an injury claim.

The rule: K.S.A. 60-258a

Kansas uses modified comparative fault. A jury assigns a percentage of fault to everyone whose conduct contributed to the injury. If your share is less than the combined fault of the parties you are claiming against, you recover, and your damages are reduced by your percentage. If your share is 50 percent or more, you recover nothing.

Your share of fault	Total damages	Your recovery
0%	$200,000	$200,000
20%	$200,000	$160,000
49%	$200,000	$102,000
50%	$200,000	$0

That drop from 49 to 50 percent is why fault is so often the real dispute in a Kansas case. The evidence that settles it, such as photos, vehicle damage, witness accounts, crash data and video, is easiest to gather in the first days after a crash.

More than one at-fault party

Kansas compares your fault against the combined fault of the defendants, but each defendant generally pays only its own share. The Kansas Supreme Court has applied that proportional approach since Brown v. Keill (1978). In practice, fault assigned to someone who isn't part of the case can reduce what is collectible, which is why identifying every responsible party early matters: the other driver, an employer, a vehicle owner, a contractor or a property owner.

Seat belts can't be used against you

Kansas law is unusually clear here. Under K.S.A. 8-2504, evidence that a person was not wearing a seat belt is not admissible for any aspect of comparative negligence or for reducing damages. Whether you were buckled is not a fact the jury weighs in deciding fault or the value of your injuries.

Other Kansas rules that shape a claim

• No-fault insurance (PIP). Every Kansas auto policy includes personal injury protection, which pays medical expenses and lost wages up to set minimums regardless of fault. To bring a claim for pain and suffering against the at-fault driver, medical treatment must reach $2,000, or the injury must meet a statutory threshold such as permanent disfigurement, a fracture of a weight-bearing bone, a compound or displaced fracture, a permanent injury, or the permanent loss of a bodily function (K.S.A. 40-3117).
• Pain and suffering isn't capped in ordinary injury cases. The Kansas Supreme Court struck down the statutory cap on non-economic damages for personal injury claims in Hilburn v. Enerpipe (2019). Wrongful death claims keep a separate $250,000 limit on non-economic damages (K.S.A. 60-1903).
• Two years to file. Most personal injury claims must be filed within two years (K.S.A. 60-513).
• Claims against a city or county. Written notice must be filed first, and a lawsuit generally can't be filed until the claim is denied or 120 days pass (K.S.A. 12-105b).

How Kansas compares to Colorado, Arizona and California

State	Fault rule	At exactly 50% fault
Kansas	Modified comparative (K.S.A. 60-258a)	Barred
Colorado	Modified comparative (C.R.S. 13-21-111)	Barred
Arizona	Pure comparative	Recovers 50%
California	Pure comparative	Recovers 50%

Kansas and Colorado both bar recovery once your share reaches half. Arizona and California reduce a recovery by your share but never bar it.

Frequently asked questions

What is the 50 percent rule in Kansas?

Under K.S.A. 60-258a, you can recover only if your share of fault is less than that of the parties you're claiming against. At 50 percent or more, you recover nothing; below that, your damages are reduced by your percentage.

Can the other side argue I wasn't wearing a seat belt?

Not to reduce your recovery. K.S.A. 8-2504 makes seat belt non-use inadmissible for comparative negligence and for mitigation of damages.

Do I have to meet a threshold to claim pain and suffering after a car crash?

Yes. Because Kansas is a no-fault state, you need $2,000 or more in medical treatment, or an injury that meets one of the statutory categories in K.S.A. 40-3117, before claiming pain and suffering from the at-fault driver.

Is pain and suffering capped in Kansas?

Not in ordinary personal injury cases since Hilburn v. Enerpipe (2019). Wrongful death claims are limited to $250,000 in non-economic damages.

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This article is general information, not legal advice. How fault is divided depends on the facts of each case.

If fault is being disputed in your Kansas injury claim, talk with our Kansas personal injury team. We work on contingency, so there is no fee unless we recover for you. For more on Kansas claims, see Kansas truck accident settlements and Kansas wrongful death settlements.