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Find a Lawyer » Canada Legal Guides » Ontario Legal Guides » Workers’ Compensation (WSIB) Ontario » WSIB Claims & Workplace Injuries Ontario » Defending Against WSIB Reprisal Charges Under Section 122 of the WSIA in Ontario

Defending Against WSIB Reprisal Charges Under Section 122 of the WSIA in Ontario

14 Jun 2026 5 min read No comments WSIB Claims & Workplace Injuries Ontario

Section 122 of Ontario’s WSIA strictly prohibits employers from penalising or terminating workers for filing a WSIB claim. If accused, an employer faces a reverse onus and must prove to the Ontario Labour Relations Board (OLRB) that their actions were entirely unrelated to the workplace injury.

Managing a workforce in Ontario requires strict adherence to numerous employment and safety regulations. One of the most severe legal pitfalls an employer can encounter is a reprisal charge under Section 122 of the Workplace Safety and Insurance Act (WSIA). A reprisal occurs when an employer disciplines, suspends, demotes, or terminates an employee because that individual sought WSIB benefits or exercised their rights under the Act. The province of Ontario takes these allegations incredibly seriously to ensure workers are not intimidated into suppressing legitimate injury claims.

For business owners in Toronto, London, Ottawa, and across the province, a reprisal claim is not a standard employment dispute. Under the WSIA, there is a presumption against the employer if the disciplinary action happened within six months of the worker exercising their rights. This “reverse onus” means you are presumed guilty until you can prove otherwise. Defending your business requires meticulous record-keeping and a strategic legal approach. In this guide, we detail the steps involved in defending against a reprisal charge. Because the stakes include massive fines and reputational damage, it is highly recommended to hire a specialized employment or WSIB lawyer from our directory to manage your defence.

Step-by-Step Process: Defending Against a Section 122 Reprisal Claim in Ontario

When a worker alleges a reprisal, the matter is typically handled by the Ontario Labour Relations Board (OLRB), not the standard civil courts. Navigating the OLRB process requires strict adherence to procedural timelines.

Step 1: Receiving the Notice of Application

📄 The process begins when the OLRB serves your business with a formal Application outlining the worker’s reprisal allegations. You have a very strict, legally mandated window-usually just a few weeks-to file a formal Response. Failing to respond in time can result in the OLRB accepting the worker’s claims as fact and issuing default orders against your company. It is critical to engage legal counsel the moment this document arrives at your office.

Step 2: Gathering Employment and Disciplinary Records

Because of the reverse onus, your defence hinges on documentary evidence. You must prove that the termination or discipline was motivated by legitimate, non-discriminatory business reasons. You will need to gather the employee’s entire personnel file. Crucial documents include performance reviews, written warnings, attendance records (unrelated to the WSIB injury), and witness statements from managers. If you terminated the worker due to economic downsizing in your Mississauga plant, you must provide financial records proving the restructuring was planned and legitimate.

Step 3: Drafting the Response and Demonstrating Just Cause

Your lawyer will draft the formal Response to the OLRB. The goal is to completely decouple the workplace injury from the employment action. For example, if a worker in Hamilton filed a WSIB claim in January, but was fired in March for stealing company property, your Response must clearly present the evidence of the theft. The standard in Ontario is strict: if the OLRB determines that the WSIB claim was even a tiny factor (e.g., 1%) in the decision to terminate, the employer loses the reprisal case.

Step 4: Attending OLRB Mediation

Before proceeding to a full hearing, the OLRB generally assigns a Labour Relations Officer (LRO) to mediate the dispute. Mediation is a confidential process where both parties attempt to reach a financial settlement without admitting liability. Many employers choose to settle at this stage to avoid the high costs and public nature of a formal hearing. A skilled lawyer can negotiate a release of all claims in exchange for a structured settlement amount.

Step 5: The Formal OLRB Hearing

If mediation fails, the case proceeds to a formal hearing before an OLRB Vice-Chair. This functions much like a trial. Both sides will present evidence, call witnesses, and conduct cross-examinations. As the employer, your management team will need to testify under oath about the true reasons for the worker’s dismissal. The Vice-Chair will then issue a binding written decision.

How Much Does a WSIB Reprisal Defence Cost in Ontario?

Defending a reprisal claim is financially burdensome, which is why compliance and careful HR management are vital. Costs can include:

  • OLRB Orders: If you lose, the OLRB can order you to reinstate the worker, pay back wages (lost wages from the date of termination), and pay damages for emotional distress.
  • Provincial Fines: Under the WSIA, corporations found guilty of an offence can face severe fines, up to $500,000 CAD. Individual directors or managers can also be fined up to $25,000 CAD or face imprisonment.
  • Lawyer Fees in CAD: Experienced OLRB defence lawyers typically charge hourly rates between $350 and $800 CAD. A full hearing can easily result in legal bills exceeding $20,000 to $50,000 CAD.
Standard TerminationWorker must prove wrongful dismissal.Superior Court of Justice (Common Law).
WSIB Reprisal (Sec 122)Employer must prove innocence (Reverse Onus).Ontario Labour Relations Board (OLRB).

How Long Does an OLRB Reprisal Hearing Take?

⌖ The timeline for an OLRB reprisal case can vary significantly. If the matter is resolved during early mediation, it might be concluded in 2 to 4 months. However, if the case proceeds to a fully contested hearing, scheduling dates and waiting for the Vice-Chair’s written decision can take 8 months to over a year. During this time, the potential liability for back wages continues to accumulate.

Frequently Asked Questions (FAQ)

What does “reverse onus” mean in a reprisal case?

Reverse onus means the legal burden of proof is flipped. Instead of the worker having to prove you fired them because of the claim, you (the employer) must prove that the WSIB claim had absolutely nothing to do with your decision to fire them.

Can I lay off a worker who is currently on WSIB?

It is possible, but highly risky. You can legally lay off a worker on WSIB only if the layoff is part of a broader, legitimate business restructuring (e.g., closing an entire department). You must prove the worker would have been laid off regardless of their injury.

Do we have to rehire the worker if we lose the OLRB case?

Yes. The OLRB has broad remedial powers, and ordering reinstatement-putting the worker back into their old job-is a very common remedy in successful reprisal claims, along with full back pay.

What happens if the worker’s WSIB claim was actually denied?

Section 122 protects the worker’s right to *file* a claim and participate in the process. Even if the WSIB ultimately denies the injury claim, you still cannot discipline or terminate the worker for simply initiating the process.

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