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Montana’s dog bite rule depends on where the bite happened. Inside an incorporated city or town, MCA 27-1-715 makes the dog’s owner liable for an unprovoked bite whether or not the dog had ever shown aggression and whether or not the owner knew of any danger. On private property outside city limits that statute does not apply, and a victim has to prove someone was careless, for example in handling a dog known to have bitten before. The city line can decide the case.
This page covers both routes, what you must prove, local leash and vicious dog ordinances, who counts as an owner or keeper, provocation and trespass, how fault works under each claim, a child’s case, landlords, every deadline including the two-year risk and government claims, damages, the 2025 service animal amendment, rabies reporting and the ten-day observation, settlement value, and insurance.
Dog Bite Laws handles dog attack cases. Talk to us for free, and pay no fee unless we recover money for you.
Montana has had a dog bite statute since 1943. MCA 27-1-715 says the owner of a dog that “without provocation bites a person or service animal” while the person is in a public place, or lawfully in a private place, “located within an incorporated city or town” is liable for the damages, “regardless of the former viciousness of the dog or the owner’s knowledge of the viciousness.”
In 1995 the Montana Supreme Court confirmed what that means. In Stroop v. Day, a Great Falls case between neighbors who lived across an alley from each other, the court held that the statute “imposes strict liability on dog owners” and that owners are liable “regardless of the owners’ negligence.” Inside town, then, Montana does not follow the one bite rule. The first bite counts.
The catch is geographic. Billings, Missoula, Great Falls, Bozeman, Helena, and Kalispell are covered inside their city limits. A bite on a ranch or at a home in a subdivision outside any city’s boundary is not, because the private place is not inside an incorporated city or town. A city mailing address does not settle it; the legal city limits do. If you were bitten in a public place outside town, such as a county road, ask a lawyer whether the statute reaches it.
Outside town, the usual claim is ordinary negligence under MCA 27-1-701, which makes each person responsible for injury caused by “want of ordinary care” in managing their property. The Montana Supreme Court has decided rural and rental dog cases, including Criswell v. Brewer and Vennes v. Miller, by asking whether the defendant owed and breached a duty of care. A rural claim can succeed, but it takes evidence the city claim does not need.
For a bite inside city limits, the statute sets out the whole case. You show that the defendant owned the dog, that the dog bit you, that you were in a public place or lawfully in a private place inside an incorporated city or town, and what the bite cost you. As the court put it in Stroop, if the victim proves the bite “and the dog’s owner is unable to establish either of the enumerated defenses, the owner is liable.” The burden of proving provocation or unlawful presence sits with the owner.
Outside city limits the claim is built on negligence, which asks for more.
Inside town the location proves the claim. Outside town the facts about the dog and its handling have to. Our guide to what determines ownership of a dog helps when it is unclear whose dog it was.
Montana’s dog control statutes hand leash and at-large rules to local government. MCA 7-23-2108 lets a county “regulate, restrain, or prohibit the running at large of dogs” by ordinance, makes a violation a misdemeanor, and allows a county to apply its rules to only part of its territory. MCA 7-23-4101 gives every city and town council the same power inside its limits. Where local licensing applies, state law also requires a collar and license tag on a dog over five months old that is allowed to run at large.
So whether a loose dog broke the law depends on the local ordinance where you were bitten. Inside city limits, a leash violation is helpful but not needed. The statute already makes the owner liable without proof of carelessness, and the Montana Supreme Court in Stroop treated the statute as strict liability even though the owners argued the victim had pleaded it as negligence per se. A citation simply documents how the dog got to you.
Outside city limits, local ordinances can still come up. In Vennes v. Miller, the family of a three-year-old bitten on the face based their claim against the property owner on a county vicious dog ordinance. The court found nothing showing the dog met the ordinance’s vicious dog definition before the bite and decided the case on other grounds. Ask the county sheriff or animal control office for the ordinance and any record of earlier complaints about the dog.
The city statute reaches one defendant by name: “the owner of a dog.” It says nothing about keepers or harborers. When the person who had the dog that day is not its owner, such as a roommate, a relative watching the dog, or a dog walker, the claim against that person may have to be brought in negligence rather than under the statute.
Outside the statute, Montana courts have used a broader keeper definition. In Criswell v. Brewer the Montana Supreme Court agreed with a trial court that applied this test: a keeper is one who “undertakes to manage, control, or care for an animal as owners are accustomed to do, or a person who exercises control over the animal on his premises with the knowledge of its presence.” The court applied the same test again in Vennes v. Miller.
Owning the land is not enough. In Criswell, a ranch owner whose foreman owned a dog that had bitten before was not a keeper, because he did not own, possess, or care for the dog. County licensing records of who owns, keeps, or harbors a dog can help identify the right defendant. If you were caring for the dog yourself, as a pet sitter or housemate, tell your lawyer on the first call.
The statute gives an owner two defenses and no others. The Montana Supreme Court said so in Stroop, and repeated it in 2002 in Madrid v. Fifth Judicial District Court: the only defenses available to the dog owner are those written into the statute, “provocation and unlawful presence.” The court added that “if a strict liability statute does not expressly provide for the defense at issue, it may not be raised.” Madrid applied that rule to bar an assumption of risk defense under the livestock trespass statute, and it described the dog bite statute as containing no assumption of risk language.
Provocation. The statute does not define the word, so Stroop set a middle course, judged case by case: not every act that stirs a dog up is provocation, but it need not rise to intentional torture either. Drawing on Illinois decisions, the court noted that under a case by case approach provocation may include unintentional acts, as long as the attack was not grossly out of proportion to the act. Applying its approach, the court held:
Unlawful presence. The statute protects people in public places and people lawfully in a private place. Subsection (2) defines lawful presence: someone performing a duty imposed by state or federal law or postal regulations, such as a mail carrier, or an invitee or licensee of the person in possession of the property. In Stroop the owner said he had warned the victim about his hands over the fence, and the dog had already run at him once, yet the court held that neither revoked his status as an invitee or licensee.
For more, read about dog bite provocation.
Montana has two fault rules for dog bites, and which one applies depends on the claim.
On the city statute, your fault does not count. In Stroop the dog owners argued that the victim’s carelessness in leaning over their fence should reduce or bar his recovery. The Montana Supreme Court disagreed and held “that contributory negligence is not a defense to a claim brought under § 27-1-715, MCA.” In the court’s words, “Ideas of comparative or contributory negligence are inapplicable under such a strict liability scheme.” If the owner cannot prove provocation or unlawful presence, the owner pays the full damages.
On a negligence claim, Montana uses modified comparative negligence. MCA 27-1-702 says your own negligence does not bar recovery if it “was not greater than” the negligence of the defendant, or of all defendants combined, and your damages are reduced by your percentage of fault. The arithmetic:
This is one more reason the city line matters. Inside town, an adjuster’s claim that you reached toward the dog has to fit the narrow provocation defense or it fails. Outside town, the same story can cut a negligence award by a percentage, so talk to a lawyer before answering questions about the seconds before the bite.
Montana’s reported cases include young children: Vennes v. Miller began when a three-year-old was bitten on the face in a rented yard, and Roy v. Neibauer involved a girl bitten in the front yard of a duplex. In Vennes the trial court entered judgment for the child against the dog’s owner.
A child has more time to sue. Under MCA 27-2-401, time while the injured person is a minor is not counted against the limitation periods in that part of the code, and MCA 41-1-101 sets the age of majority at 18. So the clock for a child’s own claim starts on the eighteenth birthday, though evidence fades long before then.
A parent has a separate claim. Under MCA 27-1-512, either parent may sue for an injury to a minor child caused by another’s wrongful act or neglect, which is how parents recover the medical bills they paid. Do not assume the parent’s claim gets the child’s longer deadline.
Expect the insurer to talk about your child’s behavior. Under the city statute only provocation matters, and Stroop judges provocation case by case. On a negligence claim outside town, the insurer may also point at the supervising adult. In Vennes the landlord filed a claim against the child’s mother. Read whether a child can provoke a dog, and get advice before anyone gives a statement.
Montana is not friendly territory for claims against landlords. The Montana Supreme Court has twice held that a landlord is not the keeper of a tenant’s dog.
So in a rental case the claim usually runs against the dog’s owner and the owner’s renters or homeowners policy. The door is not fully closed. Criswell confirms that Montana landowners owe “a duty of reasonable and ordinary care under the circumstances,” and Roy turned on the new landlord having no time and no legal means to act under the lease and the notice periods of the landlord-tenant act. That act, MCA 70-24-422, now sets a 3-day notice period for an unauthorized pet and 14 days for most other violations. Bring the lease and any complaints to the landlord to your first meeting with a lawyer.
Montana’s general injury deadline is three years. MCA 27-2-204(1) gives three years for an action on a liability not founded on a written instrument, and a wrongful death claim also has three years. But there is a trap that matters for city bites. MCA 27-2-211(1)(c) sets two years for an action on “a liability created by statute.” The strict liability claim exists only because of MCA 27-1-715, so a defendant can argue the two-year period applies to it. Treat the statutory claim as a two-year claim.
The clock generally starts on the day of the bite. MCA 27-2-102 delays it only when the facts of the claim are by their nature concealed or the defendant kept you from discovering the injury or its cause. Our guide to the dog bite statute of limitations explains how these deadlines fit together.
A dog bite can be more than a puncture, and the harm is not always visible on the day of the bite. Injuries to watch for:
Keep records from every provider you see, including a small clinic before a transfer for surgery.
Montana’s general damages rule, MCA 27-1-317, allows the amount that will compensate for “all the detriment proximately caused.” In a dog bite case that includes:
The malpractice cap is not a dog bite cap. Montana’s cap on noneconomic damages in malpractice cases, MCA 25-9-411, applies to “a malpractice claim or claims against one or more health care providers,” not to a claim against a dog owner.
Medical bills are measured by what was paid. Since a 2021 amendment, MCA 27-1-308 limits recovery for medical care to the amounts actually paid or still owed, and the jury does not consider charges written off or discounted. Insurance write-downs therefore lower the medical number, and any payment the owner’s insurer makes before trial, such as medical payments coverage, is credited against the award.
Punitive damages are hard to reach. They require actual fraud or actual malice, which MCA 27-1-221 defines as knowing facts that create a high probability of injury and deliberately proceeding with indifference to it. They cannot be requested in the first complaint, must be proved by clear and convincing evidence, and under MCA 27-1-220 are capped at $10 million or 3 percent of the defendant’s net worth, whichever is less.
Government defendants. Under MCA 2-9-108, the state, a county, or a city is not liable for more than $750,000 per claim and $1.5 million per occurrence, and government entities are immune from punitive damages. If a dog attack is fatal, the family brings a wrongful death claim and a survival claim together in one case. For more, see dog bite compensation.
Montana’s vicious dog statute works through counties. MCA 7-23-2109 lets each county adopt an ordinance to “regulate, restrain, control, kill, or quarantine any vicious dog,” licensed or not, and makes a violation a misdemeanor. The statute defines a vicious dog broadly: one that “bites or attempts to bite any human being without provocation” or that harasses, chases, bites, or attempts to bite another animal, including livestock, service animals, and pets. Cities and towns have their own power over dogs running at large under MCA 7-23-4101, so check the local code where the bite happened.
A single unprovoked bite meets that definition. A county finding does not award you money, but it is an official record of what the dog did.
The 2025 service animal law. Senate Bill 300, chapter 568 of the 2025 session laws, added service animals to the vicious dog definition and to the bite statute. It also created a new crime: under MCA 45-8-227, a dog owner who negligently allows the dog to interfere with, endanger, or harm a service animal or its handler commits a misdemeanor punishable by a fine of up to $1,000, and a conviction carries restitution that can include the handler’s medical expenses and lost wages.
The same bill reworded the bite statute’s definition of lawful presence. The old subsection (2) said when a person is “lawfully upon the private property of such owner”; the new one says when a person or service animal is “lawfully in a private place,” using the same tests: a duty imposed by state or federal law or postal regulations, or invitee or licensee status.
In Montana a dog bite is a public health event. The Department of Public Health and Human Services says that “exposure to a human by a species susceptible to rabies infection is a reportable condition to the local health departments,” citing its administrative rule. In practice that means your county or city-county health department. Your doctor may report, but you should report the bite yourself too, because the report creates a dated official record and lets public health evaluate the exposure and, where possible, arrange observation of the dog. Here is what happens after a dog bite is reported.
The ten-day observation. The department’s rabies exposure chart says that when the biting dog is healthy and “available for 10 day observation,” you should not start rabies shots right away. Instead, contact public health “to evaluate the exposure and, if possible, arrange for safe observation or assessment of the animal.” If the dog cannot be found, local public health decides case by case. The department’s rabies page notes the CDC finding that no one in the United States has ever contracted rabies from a dog confined and observed for ten days. Whether you need treatment is a decision for your doctor and the health department.
Vaccination is local. According to the Montana Department of Livestock’s rabies page, “there is no statewide vaccination requirement in Montana,” and cities and counties set their own rules, so a biting dog’s vaccination status is often unknown. If the dog was never vaccinated, read about being bitten by an unvaccinated dog.
Rabies in Montana is mostly a wildlife problem: the Department of Livestock says skunks and bats account for more than 90 percent of reported cases, and every positive case it listed for 2026 so far was a bat. That does not replace the observation period.
For 2025, the Insurance Information Institute and State Farm reported a national average of $65,450 per dog-related injury claim across 28,450 claims, and Montana was not among the ten states they broke out separately. That is an insurance claim average across every claim, large and small. It is not a settlement value and it does not predict any one case.
What actually moves the number in a Montana case:
Our overview of dog bite settlement amounts explains injury levels, and the dog bite settlement calculator gives a rough sense of ranges.
Insurers paid $1.86 billion in dog-related injury claims nationwide in 2025, according to the Insurance Information Institute. It says standard homeowners and renters policies typically cover dog bite liability up to the policy’s liability limits, usually $100,000 to $300,000, with the dog owner responsible for damages above that amount.
A dog living in a rental may be covered by the tenant’s renters policy. And because the Montana Supreme Court has twice held that a landlord is not the keeper of a tenant’s dog, the dog owner’s own policy is usually the one to look for.
On breed, the Insurance Information Institute names Pennsylvania and Michigan as states with laws that limit insurers from canceling or denying coverage to owners of particular breeds in some policies. If you have a question about a specific insurer’s conduct, Montana’s insurance regulator is the Commissioner of Securities and Insurance, the office of the State Auditor, who under MCA 2-15-1903 is the state’s commissioner of insurance.
Do not assume there is no coverage because the owner says so, because the dog is a breed some insurers exclude, or because the owner rents. Then let a lawyer handle the adjuster. In Montana, what you were doing before the bite and where exactly it happened can both change the value of the claim.
For the whole process from start to finish, read our guide on how to file a dog bite claim.
Dog Bite Laws handles dog attack cases, and Montana is a state where a few facts decide everything: whether the bite happened inside an incorporated city or town, whether the defendant is the owner or someone else, and whether the claim is filed within two years. Our work is to pin down the location, identify everyone responsible for the dog, get the health department, animal control, and sheriff records, find the dog’s history that matters in a rural negligence case, and locate every policy that might pay.
We deal with the insurer so that you do not have to, and we push back when an adjuster tries to turn an ordinary moment into provocation or a percentage of fault the law does not allow. We work on a contingency fee, so there is nothing to pay to start and no fee unless we recover money for you. Founding attorney Michael Agruss built the firm around injury clients who need someone else to carry the paperwork.
We take dog bite cases across Montana, including Billings, Missoula, Great Falls, Bozeman, Butte, Helena, and Kalispell, and in the rural counties around them. If you or your child was bitten, contact us for a free consultation. We will tell you honestly whether there is a claim worth bringing and which deadline applies to it.
Inside an incorporated city or town, yes. MCA 27-1-715 makes the owner liable for an unprovoked bite to someone in a public place or lawfully in a private place, without proof that the dog bit before or that the owner knew it was dangerous. On private property outside city limits that statute does not apply, so the victim has to prove negligence, and evidence that the owner knew the dog had bitten before or handled it carelessly becomes important.
Possibly, but it is built differently. Without the city statute, you need to prove negligence: a duty, a breach, causation, and damages. Earlier bites or complaints, or a known escape artist left loose near a road, are the kinds of facts that matter. Your own share of fault can reduce a negligence award and bars it only if it is greater than the defendants' combined share.
Plan on two years. Montana's general injury deadline is three years, but a separate statute gives two years for liabilities created by statute, and the city dog bite claim exists only because of a statute. A child's deadlines do not start until age 18. Claims against the state must first be presented to the Department of Administration, and claims against a city or county must be filed with its clerk.
Not by itself. In Stroop v. Day the Montana Supreme Court held that a man who rested his arms on a neighbor's fence with his hands over the yard did not provoke the dog, even though the owner said he had warned him, because there was no evidence he thrust his hands at the dog or made any quick or threatening gesture. Provocation is judged case by case, and the dog owner has to prove it.
Not on a claim under the city statute. The Montana Supreme Court held that contributory and comparative negligence do not apply to it, so only provocation or unlawful presence can defeat it. On a negligence claim, which is the usual route outside city limits, Montana reduces the award by your percentage of fault and bars it if your fault is greater than the defendants'.
It is difficult. The Montana Supreme Court has held more than once that a landlord is not the keeper of a tenant's dog, and that a landlord with no ability to control or remove the dog owed no duty. Landowners still owe reasonable and ordinary care under the circumstances, but in a rental case the claim usually runs against the dog's owner and the owner's insurance.
Montana treats a human exposure to a rabies-susceptible animal as a reportable condition to the local health department, and you should report the bite yourself even if a doctor also does. Public health can evaluate the exposure and, where possible, arrange a ten-day observation of the dog, which can spare you rabies shots, and the report becomes a dated record for your claim.
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