Personal Injury · Dog Bite Liability
Dog Bite Laws in Missouri
Whether Missouri holds a dog owner automatically liable, follows the one-bite rule, or takes a mixed approach, plus landlord liability and the main defenses.
How liability works in Missouri
What the rule is, and what you must show.
Note: Missouri’s strict-liability statute is bite-only. A scratch, knock-down, or chase injury is not covered by strict liability and would fall back to ordinary negligence.
Landlords & defenses
Who else can be liable, and what defeats a claim.
Missouri applies comparative fault: if the victim shares fault for the incident, damages are reduced by the victim’s percentage of fault. A person held liable also pays a fine of up to $1,000.
The full picture, with the source
Every field, and any recent development.
| Liability model | Strict liabilityBites only |
| Basis | Statute — Mo. Rev. Stat. §273.036 |
| What it covers | You were bitten (Missouri’s person-injury liability is bite-specific) without provocation, while on public property or lawfully on private property, including the owner’s own property. Liability is strict regardless of the dog’s prior viciousness or the owner’s knowledge of it. The statute also makes owners strictly liable for property and livestock damage their dogs cause. |
| Landlord | Generally no under §273.036, which targets the "owner or possessor" of the dog. A landlord who merely rents to a dog owner is usually not a possessor and can be reached only through common-law negligence, which requires knowledge of the dog’s dangerous propensity and the ability to remove it. |
| Main defenses | Provocation · Trespassing / not lawfully present · Comparative fault |
Mo. Rev. Stat. §273.036 (enacted 2008, effective 2009) (decided 2009-08-28): Missouri replaced the old common-law "one-bite" rule with statutory strict liability. Explainers describing Missouri as a one-bite state are describing pre-2009 law that no longer applies.
What Missouri dog-bite victims get wrong
Missouri switched sides in 2009. Before then it was a common-law "one-bite" state, but §273.036 now imposes strict liability: an owner or possessor is liable when their dog bites someone, without provocation, on public property or lawfully on private property, including the owner’s own yard. It does not matter whether the dog had ever bitten anyone or whether the owner knew it might. Read the trigger literally, though. For injuries to people the statute is bite-specific, so a knock-down or scratch usually falls back on ordinary negligence rather than strict liability. Two more features stand out: Missouri reduces damages by the victim’s share of fault under comparative-fault rules, and it adds a fine of up to $1,000 on top of the civil damages. Any guide that still calls Missouri a one-bite state is quoting law that changed years ago.
Common questions
Is Missouri a strict-liability state for dog bites?
Yes, since 2009. Under Mo. Rev. Stat. §273.036 the owner or possessor is strictly liable for a bite, without provocation, regardless of the dog’s prior viciousness or the owner’s knowledge of it.
Does Missouri’s dog-bite statute cover scratches or being knocked down?
For injuries to people the statute is bite-specific. If a dog scratches you or knocks you over without biting, you generally fall back on ordinary negligence rather than strict liability.
Are my damages reduced if I was partly at fault in Missouri?
Yes. Missouri applies comparative fault under §273.036, so any damages the owner owes are reduced by the percentage of fault attributed to you.
Is there a fine on top of damages in a Missouri dog-bite case?
Yes. In addition to civil damages, a person held liable under §273.036 must pay a fine not exceeding $1,000.
Not legal advicePlainStatute provides plain-language summaries of public law for general information only. This is not legal advice. Statutes change; always confirm current requirements with the official source linked above before acting.