New Hampshire Dog Bite Laws: Liability and Victim Rights

New Hampshire imposes strict liability on dog owners under RSA 466:19, meaning a bite victim does not need to prove the owner was negligent or knew the dog was dangerous. Liability applies unless the victim was trespassing or committing another tort at the time of the incident.

Estimate your claim: Use our free New Hampshire Dog Bite Settlement Calculator to see a rough settlement range based on the medical bills, the bite location, the victim's age, and New Hampshire's liability rule.

Overview of New Hampshire Dog Bite Laws

New Hampshire holds dog owners strictly liable for injuries caused by their dogs under RSA 466:19. This means a dog bite victim does not need to prove the owner was careless or knew the dog was dangerous. The owner is responsible for damages simply because they own the dog and the dog caused harm.

This strict liability approach makes New Hampshire one of the more victim-friendly states when it comes to dog bite claims. The law covers not just bites but any injury a dog causes, including knockdowns, scratches, and even injuries from being frightened by a dog.

RSA 466:19: The Strict Liability Statute

The full text of RSA 466:19 states that any person whose body or property is damaged by a dog may recover damages from the person who owns, keeps, or possesses the dog. The only exception written into the statute is if the victim was "engaged in the commission of a trespass or other tort" at the time of the incident.

The statute also provides that if the dog owner is a minor, the minor's parent or guardian is liable instead.

What a Victim Must Prove

Under this strict liability framework, the victim only needs to establish two things:

• The defendant owned, kept, or possessed the dog
• The dog caused injury to the victim or their property

Being lawfully present is not a separate element the victim carries. RSA 466:19 grants the right to recover "unless the damage was occasioned to a person who was engaged in the commission of a trespass or other tort," which makes trespass an exception the dog's owner raises as a defense, not a fact the victim must establish first.

The victim does not need to show that the owner failed to restrain the dog, that the owner knew the dog was aggressive, or that the dog had bitten someone before. There is no "one bite rule" in New Hampshire.

Property Damage Claims

RSA 466:19 applies to property damage as well. The statute specifically mentions damage to "sheep, lambs, fowl, or other domestic creatures." If a dog kills or injures livestock or another pet, the dog's owner is strictly liable for the resulting losses.

Defenses Available to Dog Owners

Even though New Hampshire applies strict liability, dog owners have several potential defenses that can reduce or eliminate their responsibility.

Trespassing

The most direct defense under RSA 466:19 is that the victim was trespassing or committing another tort at the time of the bite. If the victim was unlawfully on the owner's property, the owner may not be liable. This defense may be weaker when applied to young children who wander onto a property without understanding property boundaries.

Comparative Fault Under RSA 507:7-d

New Hampshire follows a modified comparative fault rule under RSA 507:7-d. If the victim was partly responsible for the incident, their compensation is reduced by their percentage of fault. If the victim is found to be 51% or more at fault, they cannot recover any damages at all.

For example, if a jury determines the victim was 30% at fault for provoking the dog, a $100,000 damages award would be reduced to $70,000.

Provocation

If the victim teased, hit, or otherwise provoked the dog into biting, this can serve as a defense. Provocation may be treated as a form of comparative fault or as evidence that the victim was committing a tort (which falls under the RSA 466:19 exception). The provocation must be the type that would cause a reasonable dog to react aggressively.

Assumption of Risk

People who voluntarily accept the risk of being around dogs in professional settings, such as veterinarians, dog groomers, and kennel workers, may have a harder time recovering damages. Courts may find that these individuals assumed the risk inherent in their work.

Damages Available to Dog Bite Victims

Victims of dog bites in New Hampshire can pursue both economic and non-economic damages.

Economic Damages

Non-Economic Damages

New Hampshire does not place a statutory cap on damages in dog bite cases. Victims can recover the full amount of their proven losses.

Statute of Limitations: 3 Years

Under RSA 508:4, dog bite victims have 3 years from the date of the bite to file a personal injury lawsuit. Missing this deadline almost always bars the claim permanently.

Important timing rules include:

• The 3-year clock begins on the date of the bite
• For minors (under 18), RSA 508:8 gives them 2 years after turning 18 to file, meaning the deadline runs until their 20th birthday
• Claims against government entities may require shorter notice periods
• The discovery rule may extend the deadline in rare cases where an injury was not immediately apparent

Filing promptly preserves evidence, witness memories, and your legal options. Do not wait until the deadline approaches to take action. Within that three-year window, get a free consultation from a New Hampshire dog bite lawyer on gathering the evidence and witness accounts while they are fresh (attorney advertising).

Dog Classifications: Nuisance, Menace, and Vicious

New Hampshire does not use a single "dangerous dog" label. Instead, RSA 466:31 classifies problem dogs into three categories based on their behavior. Paragraph II introduces the conditions in each category as examples rather than as a closed list.

Nuisance Dogs (RSA 466:31, II(a)-(d))

A dog is considered a nuisance if it:

• Is "at large," meaning off the owner's or keeper's premises and not under the control of any person by personal presence and attention
• Barks for sustained periods of more than half an hour, or during the night hours, so as to disturb the peace and quiet of a neighborhood
• Digs, scratches, or excretes, or causes waste or garbage to be scattered on property other than its owner's
• Is a female dog in season (heat) that is allowed to run at large or be off the owner's premises, except when exercised on a leash by a responsible adult

Menace Dogs (RSA 466:31, II(e)-(f))

A dog is classified as a menace if it:

• Growls, snaps at, runs after, or chases any person who is not on the owner's or keeper's premises
• Runs after or chases bicycles, motor vehicles, motorcycles, or other vehicles being driven, pulled, or pushed on streets, highways, or public ways

Vicious Dogs (RSA 466:31, II(g))

A dog is classified as vicious if, alone or with other dogs, it bites, attacks, or preys on:

• Game animals, domestic animals, or fowl
• Human beings

When a dog is reported for biting and puncturing the skin, the animal control officer or town clerk must notify the victim within 24 hours whether the dog has been properly vaccinated against rabies.

Penalties for Dog Owners Under RSA 466:31-a

RSA 466:31-a establishes civil forfeiture penalties that must be paid within 96 hours of notice. The penalty amounts increase with the severity of the offense and with repeat violations.

When the Case Goes to Court Instead

RSA 466:31-a, III sets two limits on the forfeiture system. Owners who pay a civil forfeiture twice within a 12-month period cannot pay a forfeiture for later violations in that same period, and those cases must be disposed of in district or municipal court. Separately, when a vicious dog described in RSA 466:31, II(g) presents a threat to public safety, immediate district or municipal court proceedings must be initiated in place of the civil forfeiture.

The forfeiture amounts above reflect the version of RSA 466:31-a that took effect January 1, 2026 (2025, 203:1). Paragraph IV of the same section confirms that none of these penalties limits a victim's civil recovery under RSA 466:19.

A dog owner who fails to restrain or control a dog found to be a nuisance, menace, or vicious may have the dog seized by police, a constable, or another authorized person. The court will then decide the dog's disposition.

Dog Owner Responsibilities

New Hampshire law imposes several ongoing requirements on dog owners.

Licensing (RSA 466:1)

Every dog 4 months or older must be licensed annually with the city or town clerk where the dog is kept. The dog must wear a collar with a tag showing the town name, year of issue, and registration number. Licenses run from May 1 through April 30 of the following year.

License fees under RSA 466:4 are:

• $4.50 for spayed/neutered dogs (7 months or older)
• $4.50 for dogs between 4 and 7 months old
• $7.00 for unspayed/unneutered dogs (7 months or older)
• $1.75 companion animal population control fee (added to each license)
• $1.75 total for owners age 65 or older (one dog, no population control fee)

Rabies Vaccination (RSA 436:100)

Under RSA 436:100, every dog 3 months or older must be vaccinated against rabies. Dogs must receive a booster vaccination between 9 and 12 months after the initial shot and subsequent boosters on the schedule recommended by the National Association of State Public Health Veterinarians.

A veterinarian may recommend an exemption for medical reasons, but exempted dogs must be kept on a leash and muzzled when outdoors.

Dog Control (RSA 466:30-a)

Municipalities that adopt the dog control law under RSA 466:30-a prohibit dogs from being "at large." A dog is considered at large when it is off the owner's premises and not under the control of a person through direct presence and attention. Many New Hampshire towns have adopted this provision, though it is not automatically statewide.

Landlord Liability for Dog Bites

A landlord is generally not considered an "owner or keeper" of a tenant's dog under RSA 466:19, so strict liability does not typically apply to landlords. However, New Hampshire courts have allowed negligence claims against landlords under specific circumstances:

• The landlord knew or should have known that the tenant's dog was dangerous
• The landlord had the authority to require the dog's removal
• The landlord failed to take reasonable steps to protect others

If a landlord temporarily cares for a tenant's dog (for example, feeding and watching the dog during a vacation), the landlord could be considered a "keeper" and held strictly liable under RSA 466:19 for any injuries the dog causes during that time.

Landlords should include clear pet policies in lease agreements and consider requiring renters insurance with liability coverage from tenants who own dogs.

Breed-Specific Legislation in New Hampshire

New Hampshire does not have a statewide breed-specific law banning any particular dog breed. The state also does not have a statewide preemption law that would prevent local municipalities from enacting breed-specific restrictions.

In practice, New Hampshire's approach focuses on individual dog behavior through the nuisance, menace, and vicious classifications under RSA 466:31 rather than targeting specific breeds. Most New Hampshire communities follow this behavior-based model. Check with your local town or city clerk for any breed-specific ordinances that may apply in your municipality.

How to File a Dog Bite Claim in New Hampshire

If you are bitten by a dog in New Hampshire, take these steps to protect your health and legal rights:

1. Get medical treatment immediately. Dog bites carry risks of infection, nerve damage, and scarring. Keep all medical records and receipts.

2. Report the bite to animal control. Contact your local animal control officer or town clerk. This creates an official record and triggers the rabies vaccination check requirement.

3. File a police report. A formal report documents the incident and may be needed for your claim.

4. Document the scene and injuries. Take photographs of your injuries, the location, and the dog if you can do so safely. Continue photographing your injuries as they heal.

5. Collect witness information. Get names and contact details from anyone who saw the attack.

6. Identify the dog and owner. Record the owner's name, address, phone number, and any homeowner's or renter's insurance information.

7. Preserve physical evidence. Keep torn or bloodied clothing and any other items damaged in the attack.

8. Consult a personal injury attorney. Many dog bite attorneys offer free initial consultations and work on contingency (you pay nothing unless you win). An attorney can identify all liable parties and handle insurance negotiations.

Are There Criminal Charges for Dog Attacks in New Hampshire?

New Hampshire's dog statutes do not make a dog attack a misdemeanor or a felony. Under RSA 466:31-a, I, a person who violates any provision of RSA 466:31 is guilty of a violation, and an owner who pays the civil forfeiture waives a court hearing and is not prosecuted or found guilty of that violation. That is true of the vicious classification in RSA 466:31, II(g) as well as the nuisance and menace conditions. Allowing a dog to run at large in territory inhabited by game birds or quadrupeds, or on land where livestock is pastured, is likewise a violation under RSA 466:33.

The criminal offenses in RSA chapter 466 target what people do to dogs rather than what dogs do to people. Under RSA 466:42-a, stealing a dog is a misdemeanor for a first or second offense and a class B felony after that, poisoning a dog is a class B felony, and tampering with a dog's collar, tracking device, or microchip is a misdemeanor.

Any criminal exposure for an owner after an attack would therefore have to come from New Hampshire's general criminal code, based on the owner's own conduct, rather than from the dog statutes. The civil claim under RSA 466:19 is the primary route for a bite victim, and RSA 466:31-a, IV states that nothing in the penalty section limits that recovery.

More New Hampshire Laws

• New Hampshire Slip and Fall Laws
• New Hampshire Statute of Limitations

Frequently Asked Questions

Is New Hampshire a strict liability state for dog bites?

Yes. Under RSA 466:19, the dog's owner or keeper is strictly liable for injuries the dog causes. The victim does not need to prove the owner was negligent or knew the dog was dangerous. The only statutory exception is if the victim was trespassing or committing another tort at the time of the bite.

How long do I have to file a dog bite lawsuit in New Hampshire?

You have 3 years from the date of the bite under RSA 508:4. For minors under 18, RSA 508:8 gives them 2 years after turning 18 to file, so the deadline runs until their 20th birthday. Missing this deadline will almost certainly bar your claim.

Can I recover damages if I was partly at fault for the dog bite?

Yes, as long as your fault was 50% or less. New Hampshire follows modified comparative fault under RSA 507:7-d. Your damages will be reduced by your percentage of fault. If you are found 51% or more at fault, you cannot recover anything.

What are the penalties for owning a vicious dog in New Hampshire?

Under RSA 466:31-a, a first vicious-dog offense carries a $400 civil forfeiture plus all of the victim's medical bills, and a second or subsequent offense within 12 months carries a $1,000 civil forfeiture plus medical bills. When a vicious dog's behavior presents a threat to public safety, RSA 466:31-a, III requires immediate district or municipal court proceedings in place of the civil forfeiture. The court may also order the dog seized and determine its disposition.

Can I sue a landlord if a tenant's dog bites me in New Hampshire?

Potentially, but not under the strict liability statute. A landlord is not typically considered an owner or keeper under RSA 466:19. However, you may have a negligence claim if the landlord knew the dog was dangerous, had the authority to require the dog's removal, and failed to take action. If the landlord was temporarily caring for the dog, they could be held strictly liable as a keeper.