WSIBWorkplace InjuryReturn to WorkTermination

Fired After Returning to Work From a Workplace Injury? The Six-Month Rule That Shifts the Burden to Your Employer

If your employer re-employed you after a WSIB injury and then terminated you within six months, Ontario law presumes it breached its re-employment obligation. Your employer has to prove otherwise. Here is how section 41 works, who it covers, and the three-month deadline that quietly kills the claim.

Written By: Amir Mirza|Reviewed By: Amir Mirza
Updated: August 2026
Ontario worker returning to modified duties after a workplace injury

Key takeaways

  • Termination within six months of re-employment flips the burden of proof. Under s. 41(10) of the *Workplace Safety and Insurance Act, 1997*, the employer is presumed not to have met its obligations, and it must show the termination was unrelated to your injury.
  • The duty only binds some employers. It applies where you had been employed continuously for at least one year on the date of injury, and it does not apply at all to employers who regularly employ fewer than 20 workers (s. 41(1) and (2)).
  • What you are owed back depends on your medical status. Able to do your old job means your old position or comparable alternative work (s. 41(4)). Able to do only suitable work means first opportunity at suitable employment as it comes available (s. 41(5)).
  • There is a hard three-month window. The Board is not required to consider your request if you ask more than three months after the termination date (s. 41(12)). Miss it and the strongest presumption in the Act may never be applied.
  • This is separate from your severance. A WSIB re-employment complaint is not a wrongful dismissal claim, and pursuing one does not price the other. Both can be live at the same time.
In this article

Quick answer. If your employer took you back after a workplace injury and then let you go within six months, Ontario law starts from the assumption that it breached its re-employment duty. Section 41(10) of the *Workplace Safety and Insurance Act, 1997* says the employer is presumed not to have fulfilled its obligations, and it is on the employer to rebut that by showing the termination had nothing to do with your injury. Two conditions gate the duty: you must have been employed continuously for at least a year when you were hurt, and your employer must regularly employ 20 or more workers. Ask the Board within three months of the termination or you may lose the presumption entirely.

What is the re-employment obligation, and does it apply to you?

Ontario does not simply leave an injured worker to the general law of dismissal. Section 41 of the *Workplace Safety and Insurance Act, 1997* creates a specific, statutory duty to take you back. It is narrower than most people assume, and it is worth checking the two gates before anything else.

First, tenure. Section 41(1) applies to a worker who has been unable to work as a result of an injury and who, on the date of the injury, had been employed continuously for at least one year by that employer. Continuous employment is measured to the date you were hurt, not the date you tried to come back.

Second, employer size. Section 41(2) says the section does not apply to employers who regularly employ fewer than 20 workers. That is a genuine carve-out and it removes a large number of small Ontario employers from this duty entirely. If your employer is under 20, section 41 gives you nothing, and your route runs through the *Human Rights Code* duty to accommodate and the ordinary law of wrongful dismissal instead.

Construction is handled separately. Section 41(8) puts employers engaged primarily in construction under prescribed requirements instead, and expressly disapplies the one-year tenure condition along with subsections (2), (4) to (7) and (10) for those workers. If you were hurt doing construction work, do not assume the rules described below are yours.

What exactly must your employer offer you?

That turns on what you are medically able to do, and the Act splits it into two cases.

Your medical statusWhat the employer must do
Medically able to perform the essential duties of your pre-injury jobOffer to re-employ you in the position you held on the date of injury, or offer alternative employment of a nature and at earnings comparable to your pre-injury employment (s. 41(4))
Medically able to perform suitable work, but not your old essential dutiesOffer you the first opportunity to accept suitable employment that becomes available with the employer (s. 41(5))
Either caseAccommodate the work or the workplace to the point of undue hardship (s. 41(6))

Note what subsection (4) does not say. It does not permit a demotion dressed up as a return. If you can do your old job, comparable earnings is the floor for any alternative the employer proposes. A return to a materially worse role at materially worse pay is not compliance, and it may independently be a constructive dismissal at common law.

Section 40 sits alongside this and is often overlooked. It obliges the employer to co-operate in your early and safe return to work by contacting you as soon as possible after the injury, maintaining communication throughout your recovery, and attempting to provide suitable employment consistent with your functional abilities that restores your pre-injury earnings where possible. The same section imposes matching duties on you, so keep your side of the correspondence clean and documented.

The six-month rule: why timing is the whole case

This is the provision worth knowing by heart. Section 41(10) reads that if an employer re-employs a worker in accordance with the section and then terminates the employment within six months, the employer is presumed not to have fulfilled the employer's obligations. The employer may rebut the presumption by showing that the termination was not related to the injury.

In ordinary employment litigation you carry the burden of showing the employer did something wrong. Here that is inverted for six months. The employer has to come forward with a reason, and a reason that holds up as genuinely unrelated to your injury. Vague restructuring language, performance concerns that appeared only after you came back, and a role quietly filled by someone else all sit badly against that burden.

The deadline that kills this claim. Section 41(12) says the Board is not required to consider a request from a worker who was re-employed and terminated within six months if the request is made more than three months after the termination date. The presumption is powerful and the window to invoke it is short. Diarize the three months from your last day, not from when you started feeling something was wrong.

How long does the obligation last?

Section 41(7) ends the obligation at the earliest of three dates, and people routinely assume the longest one applies:

  • the second anniversary of the date of injury;
  • one year after you became medically able to perform the essential duties of your pre-injury employment; or
  • the date you turn 65.

Because it is the earliest of the three, a worker who recovers quickly can see the obligation expire well inside two years. Work out which limb bites first on your facts before assuming you are still covered.

What can the Board actually do about it?

On your request or on its own initiative, the Board determines whether the employer met its obligations (s. 41(11)). If it decides the employer did not, s. 41(13) gives it two tools: a penalty on the employer not exceeding your net average earnings for the year preceding the injury, and payments to you for a maximum of one year as if you were entitled to loss-of-earnings benefits under section 43.

Read that carefully, because it sets expectations. The penalty is paid to the Board, not to you. What comes to you is up to a year of payments. That is meaningful, and it is not the same thing as the severance a court would award for a wrongful dismissal. Which is exactly why the next section matters.

A WSIB re-employment complaint is not your severance claim

These are two different tracks with two different decision-makers, and pursuing one does not resolve the other. The Board decides whether the statutory re-employment duty was met. A court decides whether you were given reasonable notice of dismissal, valued on the *Bardal* factors: your age, length of service, the character of your employment, and the availability of similar work. An injured worker in a physically demanding trade often scores badly on that last factor, which lengthens notice rather than shortening it.

There is usually a third track as well. Disability is a protected ground under the *Human Rights Code*, and the duty to accommodate to the point of undue hardship exists independently of section 41(6). Where an employer's real objection is that you came back with restrictions, that is a human rights claim whether or not the WSIA duty applied to your employer at all. We cover the parallel analysis in our guide to being fired after a workplace injury.

If your employer is under 20 workers, or your injury predates a year of service, or the s. 41(7) clock has already run out, none of that ends the matter. It simply means the statutory presumption is unavailable and the ordinary claims carry the file.

What to do in the first weeks after the termination

  1. 1.Fix the dates. Date of injury, date you were re-employed, last day worked. The six-month presumption and the three-month request window both run off those.
  2. 2.Ask the Board to determine the question under s. 41(11), in writing, inside three months of the termination.
  3. 3.Do not sign the release yet. A severance release will normally end your civil claim, and it may be presented to you as though it also disposes of everything else. Get it read first.
  4. 4.Preserve the return-to-work paper trail. Functional abilities forms, modified-duties offers, emails about accommodation, the schedule you were actually given, and anything showing your old duties being performed by someone else.
  5. 5.Write down what changed after you came back. Shift changes, supervision changes, sudden performance criticism, and who said what. Under s. 41(10) it is the employer who must explain the termination, and your record is what tests the explanation.
  6. 6.Get the severance priced separately. The Board's remedy is capped at about a year of payments. Reasonable notice is a different number and often the larger one.

A termination that lands inside six months of your return is not an ordinary dismissal, and it should not be treated like one. If that is your situation, start with what a package should look like in our guide to severance pay in Ontario, and send the offer through our severance package review before you sign anything.

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Frequently asked questions

Does the six-month presumption apply if I quit rather than being fired?

No. Section 41(10) is triggered by the employer terminating the employment. If you resigned, the presumption does not arise, though a resignation forced by an employer's conduct can still be a constructive dismissal at common law.

My employer has 12 employees. Do I have a re-employment claim?

Not under section 41. Subsection (2) excludes employers who regularly employ fewer than 20 workers. Your route is the Human Rights Code duty to accommodate and an ordinary wrongful dismissal claim.

I was terminated seven months after coming back. Is that too late?

The presumption in s. 41(10) does not apply past six months, but the underlying obligation in s. 41 can still be live depending on the s. 41(7) end dates, and your human rights and wrongful dismissal claims are unaffected.

Can I bring a WSIB re-employment complaint and a wrongful dismissal claim at the same time?

They are separate processes before separate decision-makers and they address different questions. Getting advice on how they interact before starting either is worthwhile, particularly before signing any release.

About the Author
Amir Mirza

Amir Mirza

Founder & Employment Lawyer, Mirza Law

Amir Mirza is the founder of Mirza Law and an Ontario employment lawyer acting for employees. He is licensed by the Law Society of Ontario and is a member of the Ontario Trial Lawyers Association. He writes about severance, wrongful dismissal, and the rights Ontario employees have when their job ends.

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