Vicarious Liability — Ontario Employment Law
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About Vicarious Liability
Vicarious liability is a foundational principle of common law that holds an employer legally and financially responsible for the wrongful actions or omissions of its employees. Unlike direct liability—where an organization is sued for its own specific failures, such as ignoring safety standards or instituting a flawed policy—vicarious liability means the employer is held strictly accountable simply because of its relationship with the at-fault employee. In Ontario, this doctrine is critical for workers, customers, or third parties who suffer harm, as companies typically possess the financial resources or insurance policies required to adequately compensate victims.
To trigger vicarious liability, the employee's wrongful act must occur "in the course of employment." This does not just mean the employee was on the payroll or on the clock at the time. Ontario courts examine whether the act was formally authorized by the employer, or if it was an unauthorized, wrongful method of performing an authorized act. Even intentional harms, such as physical assault or fraud, can saddle a company with liability if the employer's enterprise created or materially enhanced the risk of the wrongdoing. For instance, if a company enlists a worker to perform physical security duties and that worker uses excessive force, the employer is generally responsible for the resulting damages.
However, determining employer accountability in Ontario features a highly specific nuance regarding sexual harassment. Section 46.3 of the Ontario Human Rights Code (OHRC) explicitly protects corporations from being held automatically vicariously liable for rogue acts of sexual harassment committed by one employee against another. If a coworker harasses you, the employer is not strictly liable for the act itself under the OHRC. Despite this shield, employers frequently face direct liability in these exact scenarios if they fail to conduct a proper investigation, fail to protect the worker under the Occupational Health and Safety Act (OHSA), or allow a poisoned work environment to take root. Severe, unaddressed misconduct from a supervisor or coworker can also trigger common law claims of constructive dismissal, based on the employer's failure to provide a safe space.
Because tracing the legal boundaries of what qualifies as an employee's "course of duties" relies entirely on the specific facts of the dispute, generic assumptions are dangerous. Anyone looking to hold an enterprise accountable for a worker's rogue behaviour should have the unique details of their situation reviewed by a qualified Ontario legal professional to identify the strongest path forward.
Frequently Asked Questions
What is the difference between direct and vicarious liability?
Direct liability occurs when an employer itself does something wrong, like failing to train staff or ignoring a known hazard. Vicarious liability means the employer is held responsible for the wrongdoing of its employee, even if the employer acted reasonably and did not authorize the specific bad act.
Is my employer automatically liable if a coworker sexually harasses me?
Not automatically. Section 46.3 of the Ontario Human Rights Code prevents employers from being held strictly vicariously liable for sexual harassment by an employee. However, they can still be held directly liable if management knew (or should have known) and failed to act, or if a toxic work environment was allowed to develop.
Does vicarious liability apply to independent contractors in Ontario?
Generally, no. Vicarious liability applies to true employment relationships where the principal exercises significant control over the worker. If an individual is legitimately classified as an independent contractor, the business hiring them is usually not legally responsible for their torts, though there are narrow exceptions.
Can an employer be held liable for something an employee does off-site or outside of work hours?
It depends on whether the conduct is sufficiently connected to the workplace. If an employee harms someone at a company-sponsored holiday party or while driving a company vehicle to a client meeting, the employer may still be held vicariously liable, whereas purely private off-duty conduct usually breaks the link.
When should I consult an employment lawyer about a coworker's misconduct?
If you have reported physical abuse, discrimination, or severe harassment by a colleague and management has failed to protect you, you should speak to a lawyer promptly. Legal counsel can evaluate whether the employer’s inaction amounts to constructive dismissal and whether the company can be held vicariously or directly liable for your damages.
How long do I have to file a claim against my employer for a colleague's actions?
In Ontario, civil claims based on vicarious liability (such as negligence or constructive dismissal) are generally subject to a strict two-year limitation period under the Limitations Act, 2002. Human rights applications based on workplace discrimination must typically be filed within one year of the last incident.
Common Scenarios
- A delivery driver for an Ontario logistics company negligently causes a severe traffic collision while rushing to finish their mandatory route, prompting the injured party to sue both the driver and the company relying on the doctrine of vicarious liability.
- A supervisor physically and verbally abuses a subordinate on the shop floor; when HR ignores the complaints, the worker resigns and successfully claims constructive dismissal against the employer for failing to provide a safe working environment.
- An employee at a retail store uses their authorized administrative access to steal and intentionally leak a customer's private data, raising complex legal questions about whether the theft was sufficiently connected to their core job duties to make the store liable.
- A factory worker faces ongoing harassment from a peer. To bypass the strict vicarious liability exclusion for sexual harassment under the Human Rights Code, the worker targets the company's direct failure to investigate the incidents as required by the Occupational Health and Safety Act.
What You Should Know
- If a colleague harms you at work, document the incidents thoroughly and immediately report them using formal channels, as the employer's response often dictates their direct legal liability even if vicarious liability is contested.
- Do not assume that an employer is immune just because an employee broke company policy; if the wrongful act was closely connected to the worker's authorized duties, the employer may still be held fully accountable.
- Employers should ensure they have robust, actively enforced workplace violence and harassment policies to minimize both direct liability risks and the likelihood of acts that could trigger vicarious liability.
- Because establishing whether a rogue act occurred 'in the course of employment' is highly technical, have an Ontario employment lawyer critically review the circumstances before abandoning a potential claim against a company.
Featured Cases
A. v. K.
2025 ONSC 5689 (CanLII) · 2025-10-28Vicarious Liability for Employee Defamation
This is a procedural motion to strike claims in a tort action involving vicarious liability for employees' defamatory social media posts. The court addressed whether the brokerages owed a duty of care, were vicariously liable for the agents' conduct, and whether punitive damages could be awarded vicariously. The claim for punitive damages against the brokerages was struck as having no reasonable prospect of success.
E. v. The Waterloo Police Board
2024 ONSC 6075 (CanLII) · 2024-11-04E. v. Waterloo Police Board: Privacy & Employment
This is a summary judgment ruling in a tort action where the plaintiff alleged that police officers disclosed her personal information, leading to her termination of employment. The court granted summary judgment, finding no genuine issue requiring a trial, and determined that the disclosure was lawful under the Police Services Act and the Municipal Freedom of Information and Protection of Privacy Act.
S. v. Syra Group et al.
2024 ONSC 2169 (CanLII) · 2024-04-24Workplace Disability Harassment and Vicarious Liability
This case involves allegations of disability-related harassment in the workplace, raising issues of vicarious liability for the employer. The primary legal focus is on whether the employer is liable for the harassment suffered by the employee.
G. v. Z.
2022 ONSC 3784 (CanLII) · 2022-06-24Partial Summary Judgment Denied in Employment Dispute
This is an interlocutory procedural decision regarding a motion for partial summary judgment in a case involving employment-related claims. The court denied the defendant's request for partial summary judgment because the claims were factually intertwined with other defendants, creating a risk of inconsistent findings. Additionally, the court denied the plaintiff's request for an adjournment due to non-compliance with court-ordered timetables.
I. v. Skyservice Business Aviation Inc.
2022 ONSC 1795 (CanLII) · 2022-03-22Vicarious Liability for Sexual Harassment Struck
This is an interlocutory motion to strike a claim for vicarious liability for sexual harassment brought by an employee against her employer under the Ontario Human Rights Code. The court determined that no independent tort of vicarious liability for sexual harassment exists in Ontario law and that section 46.3 of the Code excludes such liability, resulting in the striking of the vicarious liability claims. However, leave to amend was granted to allow the plaintiff to seek monetary compensation for other infringements of the Code.
D. v. P.
2022 ONCA 76 (CanLII) · 2022-01-28Employer Vicariously Liable for Employee's Travel Accident
This was an appeal to the Court of Appeal from a summary judgment motion about vicarious liability for an employee's car accident. The employee was driving to a distant job site when he caused an accident while making a short detour for coffee. The motion judge held the employer vicariously liable because the travel and the minor detour were authorized acts within the course of employment. The Court of Appeal upheld this decision, finding no error in the application of the Salmond test for vicarious liability.
Z. v. G4S Secure Solutions (Canada) Ltd
2022 ONSC 93 (CanLII) · 2022-01-11Z. v. G4S: HRTO Judicial Review
This is a judicial review of a Human Rights Tribunal of Ontario decision concerning an employment-related human rights complaint. The Divisional Court reviewed the Tribunal's dismissal of the application against individual respondents and its interpretation of s. 34(11) of the Ontario Human Rights Code regarding overlap with civil actions.
D. v. S.
2021 ONSC 3415 (CanLII) · 2021-06-25This is a procedural ruling on a motion for summary judgment in a tort action alleging employer vicarious liability for an employee's negligence during a motor vehicle accident. The court determined that there was no genuine issue requiring a trial regarding whether the employee's actions, including a brief stop for coffee, were within the course of employment, and granted summary judgment on the liability issue.
E. v. Simplicity Air Ltd.
2021 ONCA 409 (CanLII) · 2021-06-11Vicarious Liability for Punitive Damages in Workplace Injury
This is an appeal from a jury verdict awarding punitive damages to an injured employee against their employer. The Court of Appeal for Ontario dismissed the appeal, upholding the employer's vicarious liability for supervisors' misconduct that contravened workplace safety legislation and was highly reprehensible. The court confirmed that contributory negligence does not reduce punitive damages and that the trial judge's instructions to the jury were adequate.
B. v. German Canadian News Company Limited et al.
2019 ONSC 1343 (CanLII) · 2019-02-26Wrongful Dismissal: 19-Year Employee Seeks 19 Months Notice
This wrongful dismissal case involves a plaintiff with 19 years of service who was terminated without notice or compensation. The court applied the Bardal factors to determine the reasonable notice period, addressing whether the plaintiff was entitled to 19 months' notice and benefits. The case also examined claims for aggravated and punitive damages related to the employer's handling of workplace harassment and the manner of dismissal.
772694 Ontario Limited v. G.
2018 ONSC 5558 (CanLII) · 2018-09-20Sexual Harassment: Motion to Strike Pleadings
This is a civil procedure motion to strike portions of a statement of defence and counterclaim in a case involving allegations of sexual harassment and discrimination. The court addressed whether allegations of intoxication and drug use were relevant to claims of stress and anxiety, and whether an employer could be held vicariously liable for harassment by a co-worker under the Human Rights Code. The court found the impugned pleadings scandalous and irrelevant, and noted that the absence of allegations regarding employer conduct precluded liability for a poisoned work environment.
MD Physician Services Inc. v. W.
2018 ONCA 440 (CanLII) · 2018-05-09Non-Solicitation Clause Enforceability Appeal
This is an appeal regarding the enforceability of non-solicitation clauses in employment contracts and the vicarious liability of a new employer. The Court of Appeal for Ontario reviewed whether the trial judge correctly found that former employees breached their contracts by soliciting former clients and whether the new employer was liable for those breaches.
I. v. L.
2017 ONCA 446 (CanLII) · 2017-06-02I. v. L.: Vicarious Liability for Employee Assault
This was an appeal to the Court of Appeal from a summary judgment dismissing the plaintiff's claim against a taxi company. The plaintiff alleged she was sexually assaulted by a taxi driver while intoxicated and sued the taxi company for vicarious liability, negligence, and breach of fiduciary duty. The motion judge dismissed the claims, finding the taxi company was not vicariously liable for the driver's intentional torts absent fault, and the plaintiff failed to establish negligence or fiduciary duty. The Court of Appeal dismissed the appeal, agreeing that the alleged assault was not sufficiently connected to the employment risk to justify vicarious liability under the Bazley test.
C. v Ghuman o/a Appleseed Snowblowing Service
2017 ONSC 1569 (CanLII) · 2017-03-08Vicarious Liability: Employee vs Independent Contractor
An appeal from a trial decision regarding vicarious liability for an intentional tort committed by a snow removal operator. The Divisional Court applied the test for distinguishing between an employee and an independent contractor, finding no vicarious liability as the assault and use of racial slurs were outside the scope of the operator's work.
Ontario Public Service Employees Union v Ontario (Training, Colleges and Universities)
2016 ONSC 6348 (CanLII) · 2016-10-11Judicial Review: Vicarious Liability for Employee Tort
This is a judicial review application brought by the Ontario Public Service Employees Union challenging a labour tribunal's ruling on vicarious liability. The Divisional Court assessed whether the tribunal's decision to hold the employer liable for an employee's intentional tort (intrusion upon seclusion) was reasonable, applying the Dunsmuir standard. The tribunal's analysis was found to be justified, transparent, and intelligible.
D. v Canada (Attorney General)
2015 ONSC 8008 (CanLII) · 2015-12-22RCMP Systemic Harassment Class Action Certification
This is a class action certification motion concerning systemic workplace harassment and discrimination based on gender and sexual orientation within the RCMP. The court addressed whether the Crown bears vicarious liability for systemic negligence, whether the employment relationship is contractual or statutory, and whether the claims are statute-barred by limitation periods due to PTSD.
T. v. University of Western Ontario
2015 ONCA 295 (CanLII) · 2015-04-30Medical Resident Tort Claims Against University Faculty
This was an appeal to the Court of Appeal from a motion judge's decision striking out the plaintiff's claims. The plaintiff was dismissed from a medical residency programme and sued the university and individual faculty members for various torts. The motion judge struck out the entire statement of claim against the individual respondents and the claim of intimidation against the university, and refused to grant leave to amend. This court decided to allow the appeal in part to grant the plaintiff leave to amend her statement of claim because the motion judge gave no reasons for denying it.
K.L. v 1163957799 Quebec Inc.
2015 ONSC 2417 (CanLII) · 2015-04-14Vicarious Liability for Workplace Sexual Assault
This is an interlocutory motion determining whether the plaintiff's statement of claim discloses a reasonable cause of action. The plaintiff alleged sexual harassment and assault by a supervisor, seeking to establish a new tort of sexual harassment, vicarious liability, and negligence against the employer. The court found that the Ontario Human Rights Code precludes a standalone civil tort for sexual harassment but allowed the claims for vicarious liability and negligence to proceed based on the employer's material enhancement of risk and duty of care.
S. v Bmo Nesbitt Burns et al.
2015 ONSC 1760 (CanLII) · 2015-03-31Costs in Vicarious Liability: Employee Liability
This is a procedural costs ruling in a negligence action where individual employees were sued alongside their corporate employer. The court addressed whether employees should bear personal liability for costs when the employer is vicariously liable, finding they were not necessary parties, and determined costs based on proportionality and fairness.
K.M.-A. v. S.S.
2014 ONSC 4264 (CanLII) · 2014-09-12Vicarious Liability vs WSIA Immunity
This is a merits decision concerning whether section 29 of the Workplace Safety and Insurance Act, 1997 precludes a vicarious liability claim against a vehicle owner under the Highway Traffic Act for injuries caused by a co-worker's negligence. The court analyzed whether the statutory immunity of the driver eliminates joint and several liability for the unprotected vehicle owner, concluding that statutory vicarious liability remains actionable unless explicitly restricted by legislation.