Hurt in Missouri? Don't Let the Five-Year Deadline Fool You

Missouri gives injured people one of the longest filing windows in the country — generally five years — and that generosity is exactly why so many Missouri claims fall apart. People hear “five years” and relax. Meanwhile, shorter deadlines are hiding inside the rule, the evidence goes stale, and the legislature keeps trying to take the five years away.

Five years on paper — and a legislature trying to shrink it

Under RSMo 516.120, most Missouri personal injury lawsuits — car crashes, falls, dog bites, most negligence claims — must generally be filed within five years. Only a handful of states allow that long, and you can see how Missouri compares in our state-by-state statute of limitations guide.

Here is the part most articles skip: that window is under active attack. In early 2025, the Missouri House passed a bill (HB 68) that would have cut the general deadline from five years to two. It stalled in the Senate and did not become law, so as of 2026 the five-year rule still stands — but business groups continue to push for a shorter period, and similar bills have surfaced in past sessions. If you are reading this years from now, or if your injury happens after a future change takes effect, the math could be very different. Anyone sitting on a potential claim should treat the five-year figure as a ceiling that may not survive, not a promise, and confirm the current rule with a licensed Missouri attorney.

One more nuance worth knowing: Missouri generally starts the clock when the damage is “capable of ascertainment” — roughly, when the injury and its cause could reasonably be discovered — which can matter for harms that do not show up right away.

The shorter clocks hiding inside the five-year rule

The five-year period is the general rule, not the only rule. Several common situations run on much faster timelines:

• Medical malpractice: generally two years. Under RSMo 516.105, claims against health care providers must generally be filed within two years of the negligent act, with narrow exceptions — for example, foreign objects left in the body and cases involving a failure to disclose test results, plus extra time for minors. There is also an outer limit of ten years for most malpractice claims regardless of discovery.
• Injuries on big-city streets and sidewalks: ninety days to give notice. Under RSMo 82.210, before suing a Missouri city of one hundred thousand or more residents — think Kansas City, St. Louis, Springfield, Columbia, or Independence — over a defect in a street, sidewalk, bridge, or thoroughfare, you generally must deliver written notice to the mayor within ninety days of the injury, describing when, where, and how it happened. Miss that notice and the lawsuit may be barred no matter how much time remains on the five-year clock.
• Claims against government entities generally. Missouri’s sovereign immunity statute, RSMo 537.600, only waives immunity in limited situations — chiefly injuries from public employees operating vehicles and from dangerous conditions on public property — and public-entity claims tend to carry their own procedural traps. If a government defendant might be involved, get advice early.
• Evidence has no statute of limitations. Camera footage gets overwritten, witnesses move, vehicles get repaired, and a two-year-old medical gap becomes the insurer’s favorite exhibit. A five-year legal window does not preserve a five-year-old case’s quality.

Missouri’s fault rule is unusually forgiving

Missouri follows pure comparative fault. The Missouri Supreme Court adopted the rule in Gustafson v. Benda (1983), and the legislature later codified it for product liability cases in RSMo 537.765. In plain terms: being partly — even mostly — at fault does not bar your claim. Your recovery is simply reduced by your percentage of blame. A person found 30% responsible generally recovers 70% of their damages; even someone found 80% responsible can generally still recover the remaining 20%.

That puts Missouri in a small minority of states with no cutoff at all — unlike neighbors such as Kansas or Arkansas, where crossing a fault threshold ends the claim entirely. The practical consequence: in Missouri, the argument is almost never “whether” you can recover, it is “how much,” and every percentage point is negotiable. When an adjuster tells you the crash was mostly your fault, that is an opening position in a percentage negotiation, not a ruling. It is also, notably, an argument that would end your case in several nearby states but does not end it here.

An at-fault state with a harsh twist for uninsured drivers

Missouri is a traditional at-fault (tort) state, not a no-fault state. There is no personal injury protection requirement and no tort threshold to meet: after a crash, the claim generally runs against the at-fault driver and their liability insurance, which is why fault evidence matters from day one.

But Missouri adds a rule many drivers have never heard of, often called “no pay, no play.” Under RSMo 303.390, a driver who was uninsured at the time of the crash generally waives the right to recover noneconomic damages — pain and suffering — from an insured at-fault driver. Economic losses like medical bills and lost wages can generally still be pursued, passengers in the uninsured vehicle are not affected, and exceptions exist (including when the at-fault driver was under the influence). The rule has drawn constitutional challenges, so its exact reach is something to confirm with counsel — but if you were driving uninsured, do not assume you have no claim, and do not assume you have a full one either. It is a genuinely fact-specific question.

Damage caps: mostly absent, with a medical malpractice exception

Missouri does not impose a general cap on compensatory damages in most ordinary negligence cases. Medical malpractice is the big exception: under RSMo 538.210, noneconomic damages in malpractice cases are generally capped at statutory amounts, with a higher tier for injuries the law defines as catastrophic, and both figures adjust upward by a fixed percentage each year. Economic damages — medical costs, lost income — are not capped. What a particular claim is realistically worth depends on far more than caps; our guide to how injury claims are valued walks through the factors that actually move the number.

What to actually do with all this

If you take nothing else from this post: ignore the five-year figure when deciding when to act. Figure out which clock applies to your situation — two years if a health care provider is involved, ninety days of notice if a big-city sidewalk is involved, and a possibly-shrinking five years for everything else — then act as if the shortest one controls. Get medical care documented promptly, preserve photos and witness contacts, and be careful with early recorded statements. For a condensed version of Missouri’s deadlines and fault rules, see our Missouri quick-reference page.

None of this is legal advice, and the rules above are general statements as of 2026 — a licensed Missouri attorney can tell you how they apply to your facts. If you were hurt in Missouri and want to find out whether you may have a claim, answer a few questions about what happened and we will connect you with a participating law firm that can evaluate it. It is free, confidential, and there is no obligation.