Missouri Dog Bite Statute of Limitations: How Long You Have to File a Claim
August 13, 2026
If a dog attacked you in Missouri, the clock on your legal claim started ticking the moment it happened, whether you realized it or not. Missouri’s dog bite statute of limitations gives most victims five years to file a lawsuit, but that number shifts dramatically depending on who owns the dog, how old you were when it happened, and how the injury was discovered.
Missing this deadline by even a single day can end your case permanently, regardless of how clear the dog owner’s liability might be. This guide walks through exactly how Missouri’s filing deadlines work, what can pause or extend them, and what steps protect your claim while you still have time to act.
How Long Do You Have to File a Dog Bite Lawsuit in Missouri
Missouri applies its general personal injury statute of limitations to dog bite cases. According to Nolo, Missouri uses the same statute of limitations for dog-bite cases as it does for other personal injury cases. That deadline is five years from the date of the incident under Missouri’s civil injury statute, a timeframe confirmed across multiple Missouri injury law resources, including Bur Oak Injury Law.
This five-year window applies because dog bite claims fall under Missouri’s broader personal injury framework rather than a separate, dog-specific deadline. The default statute of limitations for most Missouri civil claims, including personal injury, property damage, breach of contract not in writing, fraud, and conversion, is five years from the date the cause of action accrued, according to a Missouri statute of limitations guide from David Naumann Law.
Missouri also backs this deadline with a strict liability standard that makes dog owners financially responsible regardless of the dog’s bite history. The owner or possessor of any dog that bites, without provocation, any person while such person is on public property, or lawfully on private property, including the property of the owner or possessor of the dog, is strictly liable for damages suffered by persons bitten, regardless of the former viciousness of the dog or the owner’s or possessor’s knowledge of such viciousness, according to Missouri Revised Statute Section 273.036.
This is a meaningful departure from states that still require proof the dog had bitten before. You can read more about how this standard compares to the older approach in our breakdown of the one-bite rule in Missouri, or see how a state that still follows the traditional model handles liability in our guide to the one-bite rule in Pennsylvania.
Pro Tip: Even though you technically have five years, insurance companies and defense attorneys build stronger positions the longer a claim sits unfiled. Start documenting your case immediately rather than waiting to see how the injury heals.
When the Statute of Limitations Clock Starts in Missouri
The five-year countdown generally begins on the date you were bitten, not the date you decided to pursue a claim. This deadline begins on the date of the injuries, or on the date the injuries were discovered, according to Brown & Crouppen’s overview of Missouri dog bite law.
That second trigger point matters more than most victims realize. Missouri courts recognize a discovery rule in certain injury cases, meaning the statute of limitation for filing a lawsuit does not begin until the claimant discovers an injury, rather than the date the defendant’s wrongful act caused the loss, according to Devkota Law Firm. This can matter in dog bite cases where an infection, nerve damage, or psychological trauma doesn’t surface until weeks after the initial attack.
In the overwhelming majority of dog bite cases, however, the injury is obvious immediately, so the clock starts on the day of the bite. If you’re still working through what liability looks like in these situations, our article on what happens if a dog bites someone in Missouri covers the legal and practical aftermath in more detail.
Exceptions That Can Pause or Extend the Deadline in Missouri
Missouri law recognizes several situations, known as tolling, where the five-year clock pauses rather than runs continuously. These exceptions are narrow and fact-specific, so it helps to understand what actually qualifies before assuming your case fits one.
- Mental incapacity: If a victim is mentally incapacitated at the time of the bite, the statute of limitations is paused until they turn 21 or are declared competent, per Bur Oak Injury Law’s reading of RSMo Section 516.170.
- Defendant leaves the state: Section 516.200 states that time spent outside the state may not count toward the filing period when the defendant leaves Missouri after the injury occurs, according to TorHoerman Law.
- Delayed discovery of injury: As covered above, injuries that aren’t immediately apparent may push back when the clock legally starts.
What tolling does not do is stop the clock for convenience. Filing an insurance claim does not stop or extend the statute of limitations for a personal injury lawsuit in Missouri, because the legal deadline applies to the lawsuit filed in court, not to settlement discussions or communications with an insurance adjuster. Ongoing negotiations, medical treatment, or an active animal control investigation will not buy you extra time.
Important Note: Some sources describe Missouri’s tolling and minor-victim rules with slightly different endpoints. This is because tolling interacts differently depending on whether the claim is a standard personal injury case, a medical malpractice claim, or a claim against a government entity. Always confirm which category your case falls into before calculating your personal deadline.
Special Rules for Minors in Missouri
Children who are bitten by dogs get meaningfully more time to file a claim than adults do, because Missouri law recognizes that minors cannot independently manage litigation. Under RSMo Section 516.170, a minor’s claim is tolled until age 21, creating a potential limitations window that extends well beyond the standard period, according to Missouri Legal Services Authority.
In practical terms, this means the five-year countdown does not even begin until the child’s 21st birthday. If a minor has an injury claim, the statute of limitations does not begin until the day the minor turns 21, at which point they have five years to file a claim, meaning a minor with a personal injury claim could wait up to age twenty-six before filing, according to Brown & Crouppen.
Parents and guardians are not required to wait, though. A parent or guardian can file a claim on behalf of a minor child during childhood, but the child also retains the right to file independently after reaching majority, per Chad G. Mann Law. This dual-track option matters for families dealing with a serious attack, since dog breeds with the strongest bite force can cause injuries requiring years of ongoing medical treatment that shape how and when a family decides to pursue compensation.
| Claimant Type | When the Clock Starts | Filing Deadline |
|---|---|---|
| Adult victim | Date of the bite (or discovery of injury) | 5 years |
| Minor victim | 21st birthday | 5 years (by age 26) |
| Mentally incapacitated victim | Date competency is restored | 5 years |
| Government-related claim | Date of the bite | Notice within 90 days; suit deadline varies |
Filing Against a Government-Owned or Stray Dog in Missouri
Claims involving a government entity follow a completely different, and much shorter, timeline than standard dog bite cases. If a police K-9, animal control department, or another public agency’s dog caused your injury, you are not working with the standard five-year window.
Claims against government entities in Missouri require filing a notice of claim within 90 days of the accident, a much shorter deadline than the general five-year statute, though Missouri’s sovereign immunity framework does allow some claims to proceed, according to Bur Oak Injury Law. This notice requirement exists on top of, not instead of, any eventual lawsuit deadline.
This notice requirement is separate from, and in addition to, any longer statute of limitations to actually file suit, and failing to send timely notice can bar the claim entirely, even if the general five-year Missouri personal injury deadline hasn’t expired. The Missouri Tort Claims Act governs these exceptions to sovereign immunity, and a victim typically only has 90 days to bring a formal claim against a government defendant, compared to the standard five-year window for private claims.
Stray or unowned dogs create a different kind of complication. Since Missouri’s strict liability statute is written around an identifiable “owner or possessor,” you’ll need to identify a responsible party before a claim can move forward. Reporting the bite immediately to animal control or your local health department creates an official record that can help establish ownership if the dog is later identified, and it also matters for tracking dogs that may already be classified as dangerous under Missouri law. If you’re trying to understand how ownership and breed factor into these claims, our overview of popular dog breeds in Missouri offers useful background on the animals most commonly involved in local bite incidents.
Key Insight: A short notice-of-claim window for government-related bites can expire years before your general five-year statute of limitations would. Treat any bite involving a public agency’s dog as a 90-day deadline, not a five-year one.
What Happens If You Miss the Deadline in Missouri
Missouri courts enforce filing deadlines strictly, with almost no room for sympathy once the window closes. Statutes of limitations are unforgiving; file one day late and the case is over, no matter how strong the underlying merits, according to David Naumann Law’s guide to Missouri civil deadlines.
This isn’t a minor procedural setback, either. Even filing one day late gives the defendant grounds to ask for dismissal, and judges typically grant it, with dismissal based on the statute of limitations often issued “with prejudice,” meaning the victim cannot refile the lawsuit or revive the claim. Once that happens, no amount of additional evidence, a stronger attorney, or a change in circumstances can reopen the case.
The practical effect is that a valid, well-documented injury claim becomes worthless the moment the deadline passes, regardless of how clear the dog owner’s strict liability under Missouri law would otherwise have been. This is precisely why identifying which deadline applies to your specific situation, whether it’s the standard five years, the 21st-birthday rule for minors, or the 90-day government notice window, matters so much more than most victims initially assume. For a broader look at how liability plays out once a claim is properly filed, see our guide to dog bite laws in Missouri.
What to Do Before the Deadline Approaches in Missouri
Whether you have five years or five weeks left on your claim, taking the right steps early protects both your legal rights and the strength of your evidence. Waiting until close to the deadline to start gathering documentation puts you at a real disadvantage, since witness memories fade and physical evidence disappears.
- Report the bite immediately. Report the bite to your local animal control or health department and get a copy of the report, advises Eng & Woods. This creates an official record tied directly to the date of the incident.
- Document the injury over time. Document the injury with photographs as soon as possible and at each stage of healing. This visual record supports both medical treatment and any future compensation claim.
- Collect the owner’s information. Get the dog owner’s name, address, and homeowners’ insurance information before leaving the scene if it’s safe to do so.
- Be cautious with insurance adjusters. Avoid giving a recorded statement to the owner’s insurance company before consulting an attorney, since early statements can be used to minimize your claim later.
- Consult an attorney early, even with years left on the clock. Reaching out to a skilled dog bite injury lawyer immediately helps assess your rights before the legally allotted time approaches, since eyewitness recollections may fade and compromise their reliability as time passes.
Severe attacks involving animals capable of significant tissue damage deserve particularly prompt attention, since medical costs and long-term care needs can be substantial. If you’re researching how bite severity factors into a case, our comparison of animals with the strongest bite force provides helpful context on why certain attacks require more extensive medical and legal documentation than others.
Common Mistake: Many victims assume that because Missouri gives them five years, there’s no urgency to act. In reality, evidence quality degrades quickly, and any government or minor-related exception changes your actual working deadline, sometimes drastically.
Missouri’s five-year statute of limitations gives most dog bite victims a comfortable runway compared to some other states, but that runway shrinks fast once government ownership, missed notice deadlines, or unclear circumstances enter the picture. The safest approach is treating every dog bite claim as time-sensitive from day one, documenting everything early, and confirming which specific deadline applies to your situation before assuming you have years to spare.