New Hampshire Dog Bite Laws: Liability and Victim Rights

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 three things:

• The defendant owned, kept, or possessed the dog
• The dog caused injury to the victim or their property
• The victim was lawfully present at the location where the injury occurred

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

Category	Examples
Medical expenses	Emergency room visits, surgery, physical therapy, medication
Future medical costs	Reconstructive surgery, ongoing treatment, counseling
Lost wages	Time missed from work during recovery
Lost earning capacity	Reduced ability to work due to permanent injuries
Property damage	Damaged clothing, broken personal items

Non-Economic Damages

Category	Description
Pain and suffering	Physical pain from the bite and treatment
Emotional distress	Anxiety, fear of dogs, PTSD, nightmares
Scarring and disfigurement	Permanent marks or changes in appearance
Loss of enjoyment of life	Inability to participate in activities due to injuries

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), the statute of limitations is tolled until they turn 18, giving them until age 21 to file
• 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.

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.

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

A dog is considered a nuisance if it:

• Is "at large" (off the owner's premises and not under control)
• Barks for sustained periods
• Continuously chases vehicles
• Is otherwise a nuisance to persons or property

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

A dog is classified as a menace if it:

• Growls, snaps at, or chases people without making contact
• Otherwise threatens the safety of any person

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

A dog is classified as vicious if it:

• Bites or attacks a person and punctures the skin
• Causes other serious physical injury to a person

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.

Classification	First Offense	Second Offense (Within 12 Months)
Nuisance	$25	$100
Menace	$50	$200
Vicious	Court proceedings required	$1,000 + all medical bills

2026 Update: Mandatory Court Proceedings for Vicious Dogs

Effective January 1, 2026, New Hampshire law now requires that vicious dog cases where the dog's behavior presents a threat to public safety must go directly to district court or municipal court proceedings instead of being resolved through civil forfeiture alone. This change, enacted through HB 670 (2025, 203:1), strengthens enforcement by ensuring serious incidents receive judicial oversight.

Owners who pay civil forfeitures twice within a 12-month period cannot pay forfeitures for subsequent violations during that period. Those later violations must be handled through court proceedings.

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.

Criminal Penalties for Serious Dog Attacks

In addition to civil liability, dog owners may face criminal consequences for serious incidents.

Misdemeanor charges may apply when an owner's negligence leads to a dog attack, such as repeatedly allowing a known dangerous dog to run at large in violation of court orders.

Felony charges may apply when:

• A dog kills or causes serious bodily injury to a person
• The owner knew the dog was dangerous and recklessly failed to take precautions
• The owner used the dog as a weapon to intentionally harm someone

Criminal penalties can include fines, probation, and imprisonment. These penalties are separate from any civil damages the victim may collect.

More New Hampshire Laws

• New Hampshire Whistleblower Laws
• New Hampshire Statute of Limitations
• New Hampshire Lemon Laws
• New Hampshire Car Seat Laws
• New Hampshire Recording Laws
• New Hampshire Hit and Run Laws
• New Hampshire Sexting Laws
• New Hampshire Child Support Laws