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Find a Lawyer » Canada Legal Guides » Ontario Legal Guides » Work & Employment Rights Ontario » Workplace Discrimination & Human Rights Ontario » Harassment by a Client or Vendor: Ontario Employer Responsibilities

Harassment by a Client or Vendor: Ontario Employer Responsibilities

15 Jun 2026 4 min read No comments Workplace Discrimination & Human Rights Ontario
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In Ontario, the law requires employers to protect their staff from harassment by third parties, including clients, customers, and vendors. If a client is harassing you, your employer must investigate and take action-such as banning the client-otherwise they can be held liable under the Human Rights Code.

The old saying that “the customer is always right” ends the moment workplace harassment begins. In Ontario, an employer’s legal duty to provide a safe, harassment-free environment does not just apply to interactions between coworkers. It extends to anyone who enters the workplace or interacts with staff, including third-party contractors, aggressive customers, and demanding clients.

Whether you are a retail worker in Toronto, a hospitality server in Niagara Falls, or an office professional in London, you do not have to tolerate abuse as part of your job. 📍 Ontario’s human rights and occupational health laws clearly state that an employer cannot turn a blind eye to client harassment simply because the client brings in revenue. If your employer fails to protect you, a human rights law firm can help you hold the company accountable.

Step-by-Step Process for Dealing with Client Harassment in Ontario

Navigating harassment by a client or vendor can feel intimidating, especially if you fear losing the company a big account. However, Ontario law is firmly on your side. Here is the standard process for addressing third-party harassment in the workplace.

Step 1: Removing Yourself from the Situation

Your immediate physical and mental safety is the priority. If a customer or vendor begins to harass you, use discriminatory language, or make you feel unsafe, you have the right to politely disengage and step away. 🚨 Inform the client that you are getting a manager, and retreat to a safe area.

Step 2: Reporting the Client in Writing

As soon as you are safe, document exactly what the client or vendor said or did. Submit a formal written report to your manager or HR department. Be specific about any offensive language, unwanted touching, or discriminatory remarks. Writing it down triggers your employer’s legal obligation to act under the Occupational Health and Safety Act.

Step 3: The Employer’s Mandatory Investigation

Once reported, your employer in Ontario cannot simply tell you to “brush it off.” They are legally required to conduct an investigation. 🔍 Even though the harasser is a third party, the employer must review the incident, speak to witnesses, and assess the risk the client poses to the staff.

Step 4: Employer Implementation of Corrective Measures

Following the investigation, the employer must take concrete steps to ensure the harassment stops. This could include reassigning the account to another representative, issuing a formal warning to the vendor, terminating the business contract, or formally banning the customer from the premises.

Step 5: Filing a Human Rights or Ministry Complaint

If your employer refuses to intervene because the client is “too important,” you can take external legal action. 📈 You can report the health and safety violation to the Ministry of Labour. If the harassment involved protected grounds (such as your race, age, or gender), you can file an application against your employer at the Human Rights Tribunal of Ontario (HRTO) for failing to provide a safe environment.

How Much Does it Cost in Ontario?

When dealing with a failure to protect employees from third parties, understanding the financial side of legal claims is helpful. Below are the general costs associated with escalating a third-party harassment issue.

Service / ActionEstimated Cost (CAD)
Ministry of Labour Complaint$0. Filing a health and safety complaint is free.
HRTO Filing Fee$0. There are no fees to file a human rights application.
Law Firm RepresentationOften done on a contingency basis (taking roughly 30% of your settlement) if the case is strong.
Potential Damages AwardedEmployers can be ordered to pay $10,000 to $30,000+ in human rights damages for failing to act.

How Long Does the Process Take?

When you report a harassing client, your employer should implement temporary safety measures immediately. The formal internal investigation must generally be wrapped up within 90 days. 🕑 If you are forced to file a claim with the Human Rights Tribunal of Ontario (HRTO) because your employer did nothing, expect the legal process to take anywhere from 1 to 2 years before a final resolution is reached.

Frequently Asked Questions (FAQ)

Can I refuse to serve a harassing customer in Ontario?

Yes. Under the OHSA, workers have the right to refuse work that they believe is likely to endanger them, which can include severe threats of workplace violence or ongoing, severe harassment from a client.

Can my employer fire me for complaining about a major client?

No. Firing or disciplining an employee for reporting workplace harassment is considered an illegal reprisal under Ontario law. If this happens, you should contact an employment lawyer immediately for a wrongful dismissal claim.

What if the harassment happens at an off-site client dinner?

The “workplace” in Ontario extends beyond the physical office. Client dinners, trade shows, and business trips are considered extensions of the workplace, and your employer’s duty to protect you applies equally in these settings.

Does my employer have to tell me the outcome of their investigation?

Yes. By law, an Ontario employer must inform the worker who made the complaint, in writing, of the results of the investigation and any corrective actions that have been taken against the client or vendor.

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