A plain-English guide | Reams Law | September 2026

Missouri treats people hurt in a Missouri car accident better than most states on some issues and worse on others, and the split does not follow any pattern you could guess at. You get five years to sue — twice what a lot of states allow. You can be ninety percent to blame and still collect something. But the coverage that pays for most catastrophic wrecks is entirely optional here, the family of someone killed cannot recover a dime for grief, and if you want punitive damages you are forbidden from even asking for them when you file.

What follows is what people call about after a crash, with the Missouri statutes and cases that actually control each answer.

Five things about Missouri law that surprise people

Before the questions themselves, five rules that do more work than anything else in a Missouri crash case:

1. There is no percentage that disqualifies you. Missouri is a pure comparative fault state.
2. You have five years to sue for injury — but only three if someone died. The death clock is the shorter one, and unlike the injury clock it does not pause for children.
3. Underinsured motorist coverage is not required here. Uninsured is. They are not the same product, and the gap between them is where most serious cases are lost.
4. Not wearing your seat belt is worth almost nothing to the defense. The statute caps the damage at one percent.
5. You cannot plead punitive damages in your petition. You have to earn the right to ask, later, on a deadline most people have never heard of.

Who was at fault for a car accident in Missouri?

Start with the good news, because Missouri’s rule here is about as favorable as any in the country.

In 1983 the Missouri Supreme Court threw out contributory negligence and the tangle of doctrines that had grown up around it — last clear chance, humanitarian negligence — and replaced all of it with pure comparative fault, adopting the Uniform Comparative Fault Act. Gustafson v. Benda, 661 S.W.2d 11 (Mo. banc 1983).

Pure means pure. There is no cutoff. A jury that finds you 30 percent responsible reduces your verdict by 30 percent. A jury that finds you 80 percent responsible reduces it by 80 percent and you still take home the remaining fifth. Most states would have shown you the door somewhere around the halfway mark. Missouri does not.

That single rule changes how a Missouri claim should be handled. In a state with a 51 percent cutoff — Oklahoma, for one — an adjuster who can pin a majority of the blame on you owes you nothing, so fighting over fault is all-or-nothing. Here, fault is a dial rather than a switch. A case other states would treat as worthless is often still worth pursuing, and the defense has every incentive to nibble at your percentage rather than swing for a knockout.

Where the fault percentages come from

The raw material is Missouri’s traffic code, Chapter 304. Following too closely is the most commonly violated one in a rear-end case: a driver “shall not follow another vehicle more closely than is reasonably safe and prudent, having due regard for the speed of such vehicle and the traffic upon and the condition of the roadway.” § 304.017, RSMo. Speed, lane usage, signaling, and right-of-way each have their own section, and a violation is evidence a jury can weigh.

The crash report is a starting point, not an answer. Officers arrive after the fact, take statements from people in shock, and record a conclusion. That conclusion does not bind the jury, the adjuster, or anyone else, and reports frequently get revised once someone pulls the vehicle’s event data recorder or finds a camera.

What if more than one driver is to blame?

Missouri splits the difference on joint and several liability. Under § 537.067, RSMo, a defendant found to bear 51 percent or more of the fault is on the hook for the entire judgment. A defendant below that line pays only its own percentage. Punitive damages are several only, regardless of the split.

The practical effect: if you are hit by an uninsured driver who is 60 percent to blame and a well-insured company truck that is 40 percent to blame, you collect 40 percent from the truck and chase the rest from a driver who likely cannot pay it. Flip the percentages and the truck’s insurer owes the whole thing.

Does not wearing a seat belt hurt my claim in Missouri?

People assume that not buckling up will gut their case. In Missouri it barely dents it.

Section 307.178, RSMo does three things. It says failure to wear a belt “shall not be considered evidence of comparative negligence.” It requires a defendant who wants to use the evidence at all to first put on expert testimony proving the nonuse actually contributed to the injuries. And even then, it caps the reduction at one percent of the damages awarded after any reductions for comparative negligence.

Note the sequence in that last phrase, because it matters. The one percent comes off the number that is left after your own fault percentage has already been subtracted. On a $400,000 verdict where the jury assigns you 25 percent of the fault, the award drops to $300,000 for comparative fault and the seat belt argument is then worth $3,000 — and the defense has to hire a biomechanical expert to collect it.

The calculation flips in a product liability case against the vehicle or belt manufacturer, where § 307.178(5) lets the evidence in as ordinary comparative fault. But for a run-of-the-mill collision claim, the seat belt argument is mostly bluster.

How much is my Missouri car accident case worth?

Nobody can price a claim from a phone call, and anyone who does is selling something. But Missouri’s valuation rules are knowable, and knowing them tells you whether a number on the table is serious.

Is pain and suffering capped in Missouri?

Not in a car wreck. This is worth stating plainly because Missouri does have damage caps, and they get cited at people who they do not apply to.

Missouri’s noneconomic damages cap lives in § 538.210, RSMo and reaches only claims against health care providers arising out of the rendering of health care services. Its figures — a 2015 base of $400,000 for personal injury and $700,000 for catastrophic injury or death, rising 1.7 percent every January and standing at $481,493 and $842,614 for 2026 — govern medical malpractice. They have nothing to do with a collision on Highway 40. In an ordinary Missouri negligence case, what a jury may award for pain, disfigurement, and loss of normal life is not capped by statute.

What are my medical bills worth to the jury?

Here is where Missouri quietly took something away.

Under § 490.715, RSMo as amended in 2017, the parties may put on evidence of the actual cost of the treatment — and the statute defines that term as the amount actually paid by or for the plaintiff, plus whatever is still owed after “any contractual discounts, price reduction, or write-off.”

Translated: the sticker price on the hospital’s bill is not the number. If a provider billed $60,000, your health plan paid $14,000, and the rest was written off under a network contract, the write-off goes to the jury too. Before 2017 the collateral source rule kept much of that out. It does not anymore, and it is the single largest reason Missouri cases settle for less than clients expect.

What about my vehicle?

The measure for a damaged vehicle is the difference between its fair market value immediately before the crash and immediately after, with repair cost serving as the usual proxy when the car is fixable. If your vehicle is worth measurably less after repairs simply because it now carries a damage history, that residual loss is worth raising with the adjuster — it is routinely ignored unless somebody asks.

Punitive damages: the standard, the deadline, and a cap that may not bind

Missouri rewrote this area in 2020, and the procedure now matters as much as the proof.

The standard. Section 510.261, RSMo requires clear and convincing evidence that the defendant either intentionally harmed the plaintiff without just cause or “acted with a deliberate and flagrant disregard for the safety of others.”

The pleading rule, which is the real trap. “No initial pleading in a civil action shall contain a claim for a punitive damage award.” You must later move for leave to add the claim, supported by affidavits, exhibits, or discovery showing a jury could reasonably find the standard satisfied. That motion has to be filed no later than 120 days before the final pretrial conference — or, if none is set, 120 days before trial. Miss it and punitive damages are gone no matter how egregious the conduct was.

The same section limits punitive damages against an employer for an employee’s conduct to situations involving authorization, hiring an unfit agent recklessly, a managerial agent acting in the scope of employment, or ratification. It also narrows punitive discovery once an employer admits the driver was acting as its agent — which is why the “admitted agency” move shows up in nearly every Missouri trucking case.

The cap, and why it may not apply to you. Section 510.265, RSMo limits punitive damages to the greater of $500,000 or five times the net judgment, with an exception where the defendant “pleads guilty to or is convicted of a felony arising out of the acts or omissions pled.”

But there is a larger question sitting on top of that cap. In Lewellen v. Franklin, 441 S.W.3d 136 (Mo. banc 2014), the Missouri Supreme Court held that § 510.265 violates the right to trial by jury under Article I, § 22(a) of the Missouri Constitution when applied to a cause of action that existed at common law in 1820 — because the cap “curtails the jury’s determination of damages.” The cap survived as to claims the legislature itself created, which did not exist in 1820.

Ordinary negligence is a common-law claim. On Lewellen’s reasoning the statutory cap should not bind a car wreck plaintiff at all, leaving only federal due-process review of a grossly excessive award. The 2020 legislation did not address the constitutional defect. This is not a settled question — Lewellen arose from fraudulent misrepresentation and contains language tying the holding to its facts — but anyone who tells you a Missouri punitive award is flatly capped at $500,000 is skipping a step.

Prejudgment interest, and the checklist that unlocks it

Section 408.040, RSMo lets you recover interest running from before judgment in a tort case — but only if you served a demand that satisfies a checklist. It must go by certified mail, return receipt requested. It must attach an affidavit describing the claim, the injuries, and how the damages are calculated, along with medical provider names and addresses, copies of the bills, employer information for any wage claim, and signed record authorizations. It must reference the statute and stay open 90 days. You must file suit within 120 days of the demand being received. And at the end of it all, the judgment has to exceed the demand you made — an inflated number gets you nothing.

Do every piece correctly and interest runs from 90 days after receipt. Miss one and it runs from nothing. This is a purely mechanical advantage that goes unclaimed constantly.

What should I say to the insurance adjuster?

Two companies will want to talk to you, and you owe them completely different things.

Your own carrier is owed cooperation — it is a condition of the policy you bought. Report the crash, answer honestly, and do not let coverage lapse over a paperwork failure.

The other driver’s carrier is owed nothing. No recorded interview. No signed authorization opening your entire medical history. No examination under oath. A polite refusal is a complete response, and it is not evidence of anything.

There is also a reporting duty that has nothing to do with insurance: § 303.040, RSMo requires a written report to the Director of Revenue within 30 days of any accident involving injury, death, or more than $500 in property damage to any one person.

Four things worth not saying

• Any estimate of speed or distance. You were not looking at your speedometer. A guess recorded in a claim file becomes an admission you will be cross-examined on two years later.
• “I’m okay.” Say instead that you have not been examined. Neck and back injuries commonly announce themselves on day three, and the recorded “I’m okay” from day one will be read to the jury.
• Anything that sounds like an apology. Decent people say sorry at crash scenes. Adjusters write it down as a liability admission.
• A guess about your own diagnosis. Let the treating physician characterize the injury.

What if the insurer stonewalls you?

Missouri does not recognize a general bad faith tort for first-party claims — the Supreme Court said so directly in Overcast v. Billings Mutual Insurance Co., 11 S.W.3d 62 (Mo. banc 2000). What you have instead is statutory.

Under § 375.296, RSMo, when a carrier has “failed or refused for a period of thirty days after due demand” to pay, and the refusal was vexatious and without reasonable cause, the jury may award the amount owed, interest, a statutory penalty, and attorney’s fees. Section 375.420, RSMo sets that penalty at up to 20 percent of the first $1,500 of the loss and 10 percent of the remainder, plus fees.

Two limits worth understanding. The penalty is reserved for refusals that are genuinely unreasonable — a real coverage dispute or an unsettled question of law will not get you there. And § 375.420 by its own terms excepts automobile liability insurance, which is why in the auto context these claims are typically brought on your own first-party coverage, most often an uninsured motorist claim your carrier will not pay. Bad faith as a tort still exists in Missouri on the third-party side, where a liability insurer refuses a reasonable settlement within limits and exposes its own insured to an excess judgment.

What if the other driver has no insurance in Missouri?

This is the Missouri question I would most want answered before a crash rather than after.

Uninsured motorist coverage is mandatory. Section 379.203, RSMo forbids issuing an auto liability policy in Missouri without UM protection for people “legally entitled to recover damages from owners or operators of uninsured motor vehicles,” at limits no lower than the state financial responsibility minimums. You have it whether or not you remember buying it.

Underinsured motorist coverage is not mandatory. No Missouri statute requires it. It is an optional endorsement, and plenty of drivers do not carry it.

That distinction is where serious cases go to die. Missouri’s required liability minimums are $25,000 per person, $50,000 per accident, and $25,000 property damage. § 303.190, RSMo. A driver carrying exactly that who causes a spinal injury has $25,000 of coverage against a seven-figure loss. Uninsured motorist coverage does not respond — the other driver was insured. Only underinsured coverage reaches that gap, and only if you bought it.

If you take one thing from this article: pull your declarations page and look for a UIM limit. Adding it typically costs very little. Discovering you do not have it while lying in a hospital bed is a different experience entirely.

Some other points on your own coverage:

• Hit-and-run is handled through UM, which is what that coverage is for when there is no one to sue.
• Medical payments coverage pays treatment bills without regard to blame and does not wait for the liability fight to resolve.
• Collision coverage repairs your car now and lets your insurer pursue the other carrier afterward. Using it is not an admission of fault.
• Stacking — combining limits across several vehicles or policies — depends on the wording of your policy. Missouri courts have enforced clearly drafted anti-stacking clauses and have construed ambiguous ones in the insured’s favor, so the language is worth a careful read rather than an assumption either way.
• Before you settle with the at-fault driver, check your own policy’s consent-to-settle provision. Signing a release without your UIM carrier’s agreement can wipe out its subrogation rights and, with them, your claim.

Do I need a lawyer after a Missouri car accident?

Yes.

You were not at fault, and may believe settling with the other driver’s insurance company should be easy.

It’s not easy. The insurance company will likely try to devalue your claims or give you nothing at all. And there are many other things to consider:

• You are still treating, or nobody has told you yet whether the disc is going to need surgery. A release signed today covers injuries discovered tomorrow.
• Somebody died. The wrongful death statute has its own three-year deadline, its own hierarchy of who may bring the case (§ 537.080, RSMo), and its own rules about what is recoverable.
• You need to preserve punitive damages. Between the clear-and-convincing standard and the 120-day motion deadline, this is not a box you check at the end. The same is true of a wrongful death claim for aggravating circumstances, which § 510.261 treats as a punitive damage award for procedural purposes — meaning it cannot go in the original petition either.
• You want prejudgment interest. The § 408.040 demand has to be assembled correctly, served correctly, followed by suit within 120 days, and pitched at a number the judgment will beat.
• There are health care liens. Under § 430.225, RSMo, hospitals, physicians, chiropractors, physical therapists, and other providers can lien your recovery. Missouri does limit the damage: where the liens exceed half of your net proceeds — the amount left after attorney’s fees and costs — providers collectively share in up to 50 percent of that net, prorated among them. Knowing that ceiling exists is worth real money in a lien negotiation.
• A public entity is involved. See the deadlines below.

The unglamorous reason representation usually pays for itself is asymmetry of repetition. The adjuster across the table has resolved several thousand of these. You are resolving your first.

How much does a Missouri injury lawyer cost?

Nothing out of pocket, in essentially every case. Injury work here is done on contingency: a percentage of the recovery, and no fee if there is no recovery.

How long do I have to file a car accident claim in Missouri?

Missouri is generous on the main deadline and unforgiving on the exceptions.

Type of claim	Deadline	Authority
Personal injury	5 years from the crash	§ 516.120(4), RSMo
Damage to your vehicle or property	5 years	§ 516.120(4), RSMo
Wrongful death	3 years from the date of death	§ 537.100, RSMo
Injured person was a minor (injury claim)	Tolled until age 21	§ 516.170, RSMo
Street or sidewalk defect, city of 100,000+	Written notice within 90 days	§ 82.210, RSMo
Same, fourth-class city	Written notice within 90 days	§ 79.480, RSMo

Two traps live in that table.

Wrongful death is shorter than personal injury. A family that assumes it has the five-year window it read about online can lose the case at month 37. If someone died, work from three years.

And the wrongful death clock does not stop for children. The tolling statute, § 516.170, reaches only limitation periods “specified” in sections 516.100 to 516.370. The wrongful death period lives in § 537.100, outside that range, and Missouri courts have held it is not tolled for minor plaintiffs. A child who loses a parent in a crash does not get until age 21 to sue — somebody has to bring the claim within three years. This surprises people, including lawyers, and it is unforgiving.

Suing a city, county, or the State of Missouri

Missouri public entities have sovereign immunity, waived only in specific circumstances — chiefly negligent operation of a motor vehicle by a public employee in the course of employment, and dangerous conditions of public property. Both are exactly the situations a crash victim runs into.

On notice, read the statute carefully. Sections 82.210 and 79.480 require written notice to the mayor within 90 days, but both are limited to injuries “growing out of any defect in the condition of any bridge, boulevard, street, sidewalk or thoroughfare” — § 82.210 for cities of 100,000 or more, § 79.480 for fourth-class cities. So a pothole or a collapsed shoulder triggers the 90-day notice. Being rear-ended by a city truck is a different kind of claim and is not what those sections cover. Charter cities may impose their own notice provisions, which is a reason to check the charter rather than assume.

On money, the statutory caps are not the real caps. Section 537.610, RSMo writes in $300,000 per claimant and $2,000,000 per occurrence, but requires annual inflation adjustment. The Department of Commerce and Insurance calculates the current figures and they are published in the Missouri Register. For 2026 they are $532,148 per claimant and $3,547,658 per occurrence — the per-occurrence number in particular is nearly 78 percent above the figure printed in the statute, which matters enormously in a school bus or multi-vehicle municipal crash. Note also that § 537.610 was amended effective August 28, 2026 by Senate Bill 916, which narrowed what counts as a political subdivision’s “purchase” of liability insurance; since buying insurance is one of the standard routes around immunity, that change is worth checking on any claim against a public body.

Two things that do not extend your time

Talking to an adjuster does not pause the statute. Neither does an insurer’s promise to “keep working on it.” Only filing suit stops the clock. And your own UM or UIM claim is a contract claim governed partly by the policy, which may set its own notice and suit deadlines shorter than five years.

One more Missouri rule worth knowing if you lost someone

Missouri’s wrongful death statute, § 537.090, RSMo, allows recovery for pecuniary loss, funeral expenses, and the reasonable value of the “services, consortium, companionship, comfort, instruction, guidance, counsel, training, and support” the family lost, plus what the decedent suffered between injury and death.

It then says this: “damages for grief and bereavement by reason of the death shall not be recoverable.”

Families find that sentence hard to accept, and they should — it is a real limit and it is the law. The companionship and guidance categories carry a great deal of weight precisely because grief itself cannot be claimed, and a death case has to be built accordingly from the outset.

Talk it through with someone

Reams Law handles car and truck collision, uninsured and underinsured motorist, insurance, and wrongful death matters in Missouri and Oklahoma, and has for close to 25 years. If you want an honest read on where your claim stands — including whether you need a lawyer at all — call (405) 285-6878.

The five-year window feels comfortable right up until it is not. Witnesses move, vehicles get crushed, and camera footage overwrites itself in a matter of weeks. Early is better.

Hurt in Oklahoma instead? The rules there are substantially different — see our companion guide to the seven questions everyone asks after an Oklahoma car accident.

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This article discusses Missouri law in general terms. It is not legal advice, and reading it does not make anyone a client of this firm. Statutes change, appellate courts reinterpret them, and the outcome of any case depends on its own facts. If you have been injured, speak with a lawyer about your situation specifically.