Dog Bite and Animal Attack Claims in Ontario: The Dog Owners’ Liability Act

A dog bite can happen in an instant — a walk in the neighbourhood, a visit to a friend’s home, a child reaching out to pet a dog. The injuries can be painful and lasting, from puncture wounds and scarring to nerve damage and, for many people, ongoing fear of dogs. If you or your child has been bitten or attacked by an animal in Ontario, you may be wondering who is responsible and whether you can be compensated.

This guide explains how Ontario’s Dog Owners’ Liability Act works, what to do after a bite, where compensation usually comes from, and the deadlines that apply.

Key takeaways

• Ontario’s Dog Owners’ Liability Act generally makes a dog’s owner liable for a bite or attack — even if the dog never showed aggression before.
• You usually do not have to prove the owner was careless; the law imposes strict liability.
• Your own conduct can matter: if provocation or other contributing factors are shown, compensation may be reduced.
• Compensation often comes from the owner’s home or tenant insurance rather than out of pocket.
• A lawsuit generally must be started within two years, and claims for injured children have special considerations.

Strict liability under the Dog Owners’ Liability Act

In many personal injury cases, an injured person has to prove that someone was careless. Dog bite claims in Ontario are different. Under the Dog Owners’ Liability Act, the owner of a dog is generally liable for damage the dog causes by biting or attacking a person or another animal. This is what lawyers call strict liability.

The practical effect is significant. You generally do not have to prove that the owner did something wrong, and it usually does not matter that the dog had never bitten anyone before or had no known history of aggression. The so-called “one free bite” idea — that an owner is only responsible once they know the dog is dangerous — does not reflect how the Act works in Ontario.

When compensation can be reduced

Strict liability does not mean every claim results in full recovery. The Act allows a person’s own conduct to be taken into account. If it is shown that the injured person provoked the dog, or otherwise contributed to what happened, the compensation awarded may be reduced to reflect that. Whether provocation occurred is a fact-specific question that depends on the evidence.

What to do after a dog bite or attack

The steps you take early can protect both your health and any future claim. Where you are able to, consider the following:

1. Get medical care. Even wounds that look minor can become infected or cause nerve damage. Prompt treatment protects your health and documents the injury.
2. Identify the dog and owner. Get the owner’s name, address, and contact information, and details about the dog if you can.
3. Report the incident. Contact your local animal services or public health unit. A report creates a record and may be important for rabies follow-up.
4. Document everything. Photograph your injuries over time, keep torn or bloodied clothing, and note where and how the attack happened.
5. Collect witness details. Names and contact information of anyone who saw the attack can help.
6. Keep records of your losses. Save receipts for treatment, medication, and other expenses, and note time missed from work.

Does the Act cover more than dog bites?

The Dog Owners’ Liability Act is focused on dogs, and it covers more than just bites. It can apply where a dog bites or attacks a person or another domestic animal, so a knock-down that causes a fall and a fracture, or an attack on a pet being walked, may fall within it. Injuries caused by other animals — for example a cat, a horse, or livestock — are generally handled under ordinary negligence and occupiers’ liability principles rather than this Act, which usually means showing that someone failed to take reasonable care. Because the legal framework differs by animal, it is worth confirming which rules apply to your specific incident.

Where does compensation come from?

People are sometimes reluctant to pursue a claim because they know the dog’s owner personally, or assume the owner cannot afford to pay. In many cases, though, compensation does not come out of the owner’s pocket directly. It typically comes from the owner’s home or tenant insurance policy, which often includes personal liability coverage that can respond to a dog bite claim. This is one reason it is worth understanding your rights even when the owner is a neighbour, friend, or family member.

What a dog bite claim can cover

The compensation available depends on the seriousness of the injury and its effects. In general terms, a claim may address:

• Pain and suffering, including scarring and psychological effects such as anxiety or fear of dogs;
• Medical and rehabilitation costs, including future treatment such as scar revision or counselling;
• Out-of-pocket expenses; and
• Income loss where the injury kept you from working.

Deadlines and children’s claims

Because a child’s limitation period is treated differently, families sometimes have more time than they expect — but it is still wise to get advice early, while evidence is fresh and witnesses can be found.

Claims involving injured children

Children are among the most common dog bite victims, and their injuries — especially facial injuries and scarring — can have long-term physical and emotional effects. A parent or guardian can generally bring a claim on a child’s behalf. Because the future impact of a child’s injury can be hard to assess early, these claims often call for careful medical evidence about how the injury may affect the child as they grow.

If you or your child has been bitten or attacked by a dog in Ontario, you may have more options than you realize. Azimi Law would be glad to discuss how these rules could apply to your circumstances and what steps may be available to you. There is no obligation, and every case is different.