New York dog bite law works on two tracks. To recover the full range of damages after a bite — medical bills, lost wages, pain and suffering — a victim generally has to prove the owner knew the dog had dangerous tendencies. To recover medical costs automatically, without proving anything about the owner’s knowledge, the dog must already have been declared dangerous in a formal court proceeding. Which track applies decides what you can recover and what you have to prove.
The Two Tracks of Liability
The first track is a common-law rule almost two centuries old. In Collier v. Zambito and again in Bard v. Jahnke, the Court of Appeals held that an owner who knows or should have known about a dog’s vicious propensities is liable for harm caused by those propensities.1Justia Law. Larry Bard v Reinhardt Jahnke “Vicious propensities” is broader than the phrase sounds. It covers any tendency to act in a way that could endanger people or property.
Prove that knowledge and the owner is on the hook for everything the injury cost you: medical treatment, wages you lost, pain and suffering, emotional distress, and compensation for scarring or permanent disfigurement. Fail to prove it and your recovery narrows sharply. This is why the knowledge question drives most bite lawsuits in the state.
The second track is Agriculture and Markets Law Section 123. Once a dog has been officially classified as dangerous through a court proceeding, the owner is strictly liable for medical costs from any later injury the dog causes.2New York State Senate. New York Agriculture and Markets Law 123 – Dangerous Dogs No proof of negligence, no proof of knowledge. The earlier classification does that work.
Section 123 is narrower than people often assume. It covers medical costs only, not pain and suffering. And it only applies to dogs that have already been through the dangerous-dog process. A dog with no prior classification does not trigger strict liability, no matter how serious the bite. For those cases, you’re back on the vicious propensity track, or you pursue the dangerous-dog proceeding as a first step.
What Counts as the Owner’s Knowledge
A prior bite is the clearest evidence, but not the only kind. Testimony that a dog had growled, snapped, or bared its teeth can raise a factual question about whether the owner was on notice. How the owner chose to restrain the dog matters too, and keeping a dog specifically as a guard dog can support an inference that the owner knew it had aggressive tendencies.1Justia Law. Larry Bard v Reinhardt Jahnke
The Court of Appeals also drew a clear line. The mere fact that a dog was chained, kept in an enclosure, or had barked at people is not enough on its own. Victims typically build the knowledge case with neighbors’ testimony, local animal control records showing prior complaints, or veterinary records reflecting behavioral issues. A single well-documented earlier incident is often enough.
What Doesn’t Count
Breed alone is not evidence of vicious propensities in New York. Bard v. Jahnke explicitly refused to treat breed that way, and also declined to treat male dogs kept for breeding or mothers protecting their young as dangerous as a class.1Justia Law. Larry Bard v Reinhardt Jahnke Liability turns on the specific dog and the specific owner’s knowledge of it.
The Dangerous Dog Proceeding
Section 108 of the Agriculture and Markets Law defines a dangerous dog as one that attacks a person, companion animal, farm animal, or service animal without justification and causes physical injury or death. It also includes a dog behaving in a way that a reasonable person would believe poses a serious and unjustified imminent threat of serious physical injury or death. Police dogs acting in the line of duty are excluded.3New York State Senate. New York Agriculture and Markets Law 108 – Definitions
Anyone who witnesses an attack or threatened attack can file a complaint with a local dog control officer or police officer, who may then start a formal proceeding before a municipal judge. A hearing must be held within five days, with at least two days’ written notice to the owner. The person bringing the complaint has to prove the dog is dangerous by clear and convincing evidence.2New York State Senate. New York Agriculture and Markets Law 123 – Dangerous Dogs
A judge who finds a dog dangerous must order it spayed or neutered and microchipped, and can add restrictions from a menu that includes:
- Evaluation by a certified behaviorist or veterinary behaviorist at the owner’s expense
- Secure, humane confinement designed to prevent escape and protect the public
- Muzzling whenever the dog is on public premises
- Liability insurance in an amount set by the court, capped at $100,000
That insurance figure is the maximum a court can require, not a minimum. Serious bite injuries often exceed it, which is one reason victims frequently pursue a separate civil lawsuit even when a dangerous-dog order is in place.2New York State Senate. New York Agriculture and Markets Law 123 – Dangerous Dogs
Euthanasia or permanent confinement is available only in narrower circumstances: when the dog attacked a person and caused serious physical injury or death without justification, when a previous unjustified attack causing serious physical injury or death establishes a known vicious propensity, or when the dog caused serious physical injury or death to another animal and had done similar harm within the previous two years.2New York State Senate. New York Agriculture and Markets Law 123 – Dangerous Dogs
Penalties an Owner Faces
Section 123 layers civil penalties on top of any damages the owner has to pay. Negligently allowing a dog to bite someone and cause physical injury carries a civil penalty of up to $400. If the bite causes serious physical injury, the maximum civil penalty rises to $1,500.2New York State Senate. New York Agriculture and Markets Law 123 – Dangerous Dogs
Penalties escalate sharply for repeat situations. If a dog has already been declared dangerous and then negligently causes serious physical injury, the owner faces a misdemeanor charge carrying a fine of up to $3,000, up to 90 days in jail, or both.2New York State Senate. New York Agriculture and Markets Law 123 – Dangerous Dogs
Defenses That Reduce or Eliminate Liability
Owners are not automatically liable for every bite. Provocation is the most commonly raised defense: teasing, hitting, or otherwise provoking the dog can defeat a claim, and so can intervening in a dog fight or handling an unfamiliar dog carelessly. A dog defending its owner or its young against a genuine threat may be acting with justification, which cuts against a dangerous-dog finding.
Trespassing matters too. A dog that bites someone who entered the property without permission is less likely to expose the owner to liability under the vicious propensity rule. The analysis can shift when the trespasser is a child. And a dog reacting to its own injury or illness gets more leeway than a healthy dog attacking without cause.
Comparative Fault
Even when the owner is clearly liable, the victim’s own conduct can reduce the award. Under CPLR 1411, New York follows pure comparative negligence: a victim’s contributory negligence or assumption of risk does not bar recovery, but damages are reduced in proportion to the victim’s share of fault.4New York State Senate. New York Civil Practice Law and Rules A14-A – Damages Recoverable When Contributory Negligence or Assumption of Risk Is Established A victim found 20 percent responsible for ignoring warning signs or approaching a restrained dog has the total award cut by 20 percent. Unlike some states, New York still allows recovery even when the victim carries the majority of the fault.
Landlord Liability
A landlord can be liable for a tenant’s dog bite, but only under narrow conditions. The landlord must have had actual knowledge that a dangerous dog was on the property before the incident. Simply knowing a tenant owns a dog is not enough. Awareness of the specific animal’s aggressive tendencies through complaints, prior incidents, or direct observation is what matters.
The landlord also has to have had the practical ability to do something. That usually means the legal authority to terminate the lease, enforce a no-pets clause, or otherwise compel removal of the animal. A landlord bound by a fixed-term lease with no relevant enforcement provisions may lack the control that liability requires. A landlord who receives repeated complaints and has the power to act but doesn’t may share responsibility.
Deadline to Sue
A bite victim in New York has three years from the date of the injury to file a personal injury lawsuit, under CPLR 214.5New York State Senate. New York Civil Practice Law and Rules 214 – Actions To Be Commenced Within Three Years The clock starts on the day of the bite, not the day the full extent of the injuries becomes clear. Miss it and the right to sue is generally gone, whatever the merits of the case.
Reporting the Bite and Rabies Quarantine
New York’s State Sanitary Code requires health care providers to immediately report to the local health authority any patient exposed to an animal suspected of having rabies. If no provider is involved, that duty falls to the victim, or to a parent or guardian if the victim is a child.6New York State Department of Health. State Sanitary Code, Chapter 10, Health
After a report, the local health authority may order the dog confined for 10 days to watch for rabies symptoms, with the owner paying the costs. A dog that develops signs of rabies during the confinement is destroyed and tested. If ownership cannot be established, the party who requested confinement pays.6New York State Department of Health. State Sanitary Code, Chapter 10, Health This process runs on its own timeline, separate from any dangerous-dog proceeding.
Who Actually Pays
Most bite claims in New York are paid by the owner’s homeowners or renters insurance, not out of pocket. Standard homeowners liability coverage typically includes dog bite injuries to third parties, along with legal defense costs. Renters policies offer similar liability protection, generally with limits between $100,000 and $300,000.
Coverage is not guaranteed, though. Many insurers exclude specific breeds they classify as high-risk or refuse to cover dogs with a documented bite history. Some evaluate individual animals rather than applying breed-wide rules, but a dog already declared dangerous will be hard to insure through a standard policy. And no policy covers bites to household members.
Owners whose dogs are excluded from standard coverage can look into standalone pet liability policies. Umbrella policies can extend coverage above the base homeowners or renters limits, which matters because serious bite injuries frequently exceed $100,000 in medical costs alone. Since Section 123 caps court-ordered insurance at that same $100,000, owners of dogs with any aggressive history should look hard at whether that figure actually matches their exposure.