CanadaAm I liable if someone borrows my car and causes an accident?
Yes, you may be held liable if someone borrows your car and causes an accident — in most Canadian provinces, the vehicle owner is vicariously liable under provincial highway traffic acts, even if they weren’t driving.
What the Law Says
In Canada, vehicle owners can be held legally responsible for accidents caused by drivers they permit to use their car — a rule known as 'vicarious liability.' This applies across most provinces, with specific wording in provincial statutes.
Under Ontario’s Highway Traffic Act, the owner of a motor vehicle is liable for damages caused by its negligent operation — even if someone else was driving — as long as the driver had the owner’s consent (express or implied). Similar rules exist in other provinces like British Columbia and Alberta, though statutory language varies.
Consent is central: if you knowingly let someone borrow your car — or even leave keys accessible where they could reasonably be taken — courts may find implied consent. However, liability generally does not apply if the vehicle was stolen or used without any permission.
Importantly, this liability is separate from insurance coverage. Your auto insurance policy typically extends to permissive drivers, but exclusions (e.g., unlicensed or impaired drivers) may void coverage — leaving you personally exposed.
Statutory TextThe owner of a motor vehicle is liable for any loss or damage sustained by any person by reason of negligence in the operation of the motor vehicle on a highway if the person is the driver of the motor vehicle at the time the loss or damage occurred and the driver is operating the motor vehicle with the consent, express or implied, of the owner.
— Highway Traffic Act, R.S.O. 1990, c. H.8, s. 192(2) — Owner's liability
What Courts Have Said
Canadian courts have consistently upheld owner liability where consent existed — even in cases involving family members, friends, or employees using the vehicle for personal purposes.
The court confirmed that implied consent — such as regularly allowing a spouse to drive the car — is sufficient to trigger owner liability under s. 192(2), even without verbal permission each time.
Held that an employer remained vicariously liable when an employee used a company vehicle for a brief personal errand — finding the deviation was within the scope of permitted use.
What to Do
Confirm your auto insurance policy covers permissive drivers — and check for exclusions (e.g., drivers under 25, unlicensed, or impaired).
Avoid lending your car to anyone who is unlicensed, intoxicated, or inexperienced — doing so may void insurance and increase personal liability.
If someone borrows your car regularly, consider adding them as a named driver on your policy.
In the event of an accident, notify your insurer immediately — most policies require prompt reporting (often within 30 days).
If sued, consult a lawyer right away — especially if consent is disputed or coverage is denied.
Sources
Not legal advice. This article is general information based on publicly available sources, written for educational purposes. Laws change and individual situations vary. Consult a licensed attorney in your jurisdiction before acting on anything you read here. Last reviewed: 2026-06-08.