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Find a Lawyer » Canada Legal Guides » Ontario Legal Guides » Workers’ Compensation (WSIB) Ontario » WSIB Claims & Workplace Injuries Ontario » Employer Obligations to Re-Employ Injured Workers Under WSIA in Ontario

Employer Obligations to Re-Employ Injured Workers Under WSIA in Ontario

15 Jun 2026 5 min read No comments WSIB Claims & Workplace Injuries Ontario
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In Ontario, if a business employs 20 or more staff and an injured worker has been continuously employed for at least one year, the Workplace Safety and Insurance Act (WSIA) strictly requires the employer to offer re-employment. Non-compliance as of May 2026 can lead to severe WSIB penalties, often matching a full year of the worker’s base earnings.

Navigating the return-to-work process after a workplace injury can feel overwhelming for both workers and employers. In Ontario, the Workplace Safety and Insurance Act (WSIA) establishes a rigid framework designed to protect vulnerable employees while ensuring businesses maintain fair labour practices. Understanding these statutory obligations is essential to avoid costly penalties and ensure a smooth transition back to the workplace.

Whether you reside in Toronto, Mississauga, Ottawa, or a smaller municipality, the WSIA applies uniformly across the province. The rules are designed to prevent injured workers from losing their livelihoods due to temporary physical or psychological impairments. Generally, the objective is to return the worker to their pre-injury job or an appropriate alternative without causing undue hardship to the business. If you are struggling with a complex return-to-work scenario, consulting a knowledgeable lawyer from our directory can help clarify your rights.

Step-by-Step Process for Re-Employment in Ontario

The WSIB return-to-work framework requires active cooperation. Both the injured worker and the employer must maintain clear communication and act in good faith. The following steps outline how the re-employment obligation is typically handled under Ontario law.

Step 1: Verifying Statutory Eligibility

Before the mandatory re-employment provisions kick in, two primary conditions must be met. First, the employer must have at least 20 workers on their payroll. Second, the injured worker must have been employed continuously for at least 12 months prior to the date of the injury. If these criteria are satisfied, the legal duty to re-employ is automatically activated under the WSIA.

Step 2: Assessing the Worker’s Medical Fitness

Employers cannot guess a worker’s physical capabilities; they must rely on medical evidence. The injured worker will provide a Functional Abilities Form (FAF) completed by their treating physician. This form outlines specific restrictions, such as lifting limits or required breaks, rather than diagnosing the medical condition itself. The employer uses this document to determine if the worker is fit for essential duties.

Step 3: Evaluating the Pre-Injury Job and Accommodations

If the worker is medically cleared to perform the essential duties of their pre-injury job, the employer must offer that specific position back. The employer is legally required to accommodate the work or the workplace up to the point of undue hardship. This might include modifying a workstation, adjusting shifts, or purchasing ergonomic equipment.

Step 4: Offering Alternative Comparable Work

If the worker cannot perform the essential duties of their pre-injury job even with reasonable accommodation, the employer is not off the hook. They must offer the worker the first opportunity to accept suitable and available work that is comparable in nature and earnings to their previous role. This ensures the worker does not face an unfair demotion or wage loss due to their injury.

Step 5: Documenting the Return-to-Work Plan

Every step of the accommodation process should be heavily documented. Employers usually draft a formal Return to Work (RTW) plan that outlines the modified hours, specific duties, and timelines. Both parties review and sign this document, and it is frequently submitted to the WSIB to prove that all legal obligations are being met.

How Much Does it Cost in Ontario?

Managing a WSIB claim involves various direct and indirect costs. While simply filing forms is free, failing to comply with the WSIA can be financially devastating for a business.

  • WSIB Non-Compliance Penalties: If an employer breaches their re-employment obligations, the WSIB can levy a penalty equivalent to the worker’s net average earnings for up to one full year. In May 2026, with the maximum insurable earnings limit sitting above $112,500 CAD, this fine can be substantial.
  • Accommodation Expenses: Employers must pay for reasonable workplace modifications. However, the WSIB sometimes offers grants to help offset the costs of specialized equipment.
  • Re-employment Payments: The WSIB may also issue payments directly to the worker if they suffer a wage loss due to the employer’s failure to take them back.
  • Law Firm Fees: Hiring an Ontario lawyer to mediate disputes or appeal WSIB decisions can cost between $250 and $600 CAD per hour, though many specialized WSIB lawyers operate on a contingency basis for workers.
Requirement TypeDescriptionAssociated Cost/Penalty
Pre-Injury Job OfferOffering the original job once the worker is fully fit.Standard wages (No WSIB penalty)
Duty to AccommodateModifying duties or physical workspace.Variable (Equipment costs, often under $2,000 CAD)
Breach of ObligationRefusing to re-employ a qualified injured worker.Up to 1 year of worker’s wages

How Long Does the Process Take?

The timeline for WSIB re-employment obligations is strictly governed by the WSIA. The employer’s duty to re-employ typically lasts until the earliest of three milestones: two years after the date of the injury, one year after the WSIB notifies the employer that the worker is medically able to perform essential duties, or the date the worker reaches 65 years of age. A standard RTW meeting to draft the initial plan usually takes place within 2 to 4 weeks of the injury, depending on the severity of the medical condition.

Frequently Asked Questions (FAQ)

Does the re-employment obligation apply to small businesses?

No, under the WSIA, the strict duty to re-employ only applies to employers who regularly employ 20 or more workers. However, human rights protections regarding disability accommodation still apply regardless of business size.

What constitutes “undue hardship” in Ontario?

Undue hardship is a high legal threshold. It typically involves extreme financial costs that would bankrupt the company, or severe health and safety risks to other workers. Minor inconveniences or moderate costs do not qualify.

Can an employer fire an injured worker for poor performance?

If an employer terminates a worker within six months of them returning to work, the WSIB presumes the termination was due to the injury. The employer must provide strong, documented proof that the firing was strictly for independent business or severe performance reasons.

What happens if the worker’s contract was temporary?

If the worker was on a fixed-term contract, the re-employment obligation generally only extends to the end of that specific contract term, provided they meet the 12-month continuous employment requirement prior to the injury.

Do I need a lawyer for a WSIB return-to-work meeting?

While not strictly required, having an Ontario law firm review your file can prevent unfair pressure. If you feel your employer is violating their WSIA obligations, reaching out to a local lawyer from our directory is highly recommended.

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