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Find a Lawyer » Canada Legal Guides » Ontario Legal Guides » Work & Employment Rights Ontario » Workplace Discrimination & Human Rights Ontario » Frustration of Contract vs Duty to Accommodate in Ontario

Frustration of Contract vs Duty to Accommodate in Ontario

15 Jun 2026 5 min read No comments Workplace Discrimination & Human Rights Ontario
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In Ontario, an employment contract is legally “frustrated” when a worker’s prolonged medical absence makes it impossible to foresee a return to work, usually after 24 months. While this relieves the employer’s human rights duty to accommodate, the Employment Standards Act (ESA) still requires the payment of statutory termination and severance pay.

One of the most complex challenges an employer faces is managing an employee on an indefinite, long-term medical leave. In Ontario, businesses must carefully balance two intersecting laws: the Ontario Human Rights Code (OHRC) and the Employment Standards Act (ESA). Initially, the employer has a strict duty to accommodate the injured or ill worker, keeping their job open while they recover. However, the law recognizes that a business cannot hold a position open forever.

When an illness is so severe that a return to work becomes highly unlikely, the legal doctrine of “frustration of contract” applies. This concept is heavily utilized across Ontario, from factories in Windsor to corporate offices in Toronto. 📍 Declaring a contract frustrated is not a simple firing; it is a legal acknowledgment that the employment relationship is over through no fault of either party. Mismanaging this transition can result in massive wrongful dismissal or human rights claims, which is why consulting a trusted lawyer from our directory is critical before severing the tie.

Step-by-Step Process in Ontario

Properly establishing frustration of contract requires patience, medical evidence, and a rigorous administrative process. Employers must prove they exhausted all accommodation options before concluding the contract is at an end. Here is the standard legal pathway in Ontario.

Step 1: Maintain Open Communication During Leave

When the employee first goes on medical leave, keep the lines of communication open. Request periodic medical updates (e.g., every 3 to 6 months) to understand their recovery trajectory. Employers must ensure the employee continues to receive any applicable long-term disability (LTD) benefits without interference.

Step 2: Reach the Reasonable Time Threshold

There is no exact statutory timeline for frustration, but Ontario courts generally accept that an absence of 18 to 24 consecutive months is a strong starting point. During this extended period, the employer must actively manage the absent worker’s position, usually through temporary contract replacements.

Step 3: Request a Definitive Medical Prognosis

Before declaring frustration, the employer must write to the employee requesting an updated medical prognosis. The critical question for the doctor is not the specific diagnosis, but rather: “Is there any reasonable prospect that the employee will be able to return to work in any capacity in the foreseeable future?”

Step 4: Assess the Duty to Accommodate

If the medical evidence states the employee cannot return to their previous role, you must assess if they can return to a modified role. The contract is only frustrated if the employee is totally disabled from performing any suitable work, or if creating a new role for them would reach the threshold of “undue hardship” for the business.

Step 5: Issue Frustration Notice and Pay Statutory Dues

If the medical evidence confirms no foreseeable return, the employer issues a formal letter declaring the contract frustrated. At this point, the OHRC duty to accommodate ends, but the Ontario ESA mandates that the employer must immediately pay out the employee’s accrued statutory termination pay and, if applicable, statutory severance pay.

How Much Does it Cost in Ontario?

Frustration of contract is not a “free” way to terminate an employee. Because the employee is losing their job due to an illness (which is legally out of their control), Ontario employment laws heavily protect their financial exit.

  • Statutory Termination Pay: Under the ESA, an employee is entitled to up to 8 weeks of regular wages based on their years of service.
  • Statutory Severance Pay: If the employer has a global payroll over $2.5 million CAD and the employee has 5+ years of service, the ESA requires severance pay. This is calculated at one week of pay per year of service, up to a maximum of 26 weeks.
  • Common Law Notice: Unlike standard dismissals, a legally valid frustration of contract does not trigger common law reasonable notice damages (which can reach 24 months of pay). The employer only pays the ESA minimums.
  • Law Firm Fees: Retaining an Ontario lawyer to safely execute a frustration of contract usually involves a flat fee or hourly billing, costing between $1,500 and $3,500 CAD.
Entitlement TypeStandard Dismissal (Without Cause)Frustration of Contract (Medical)
ESA Termination PayUp to 8 weeksUp to 8 weeks
ESA Severance PayUp to 26 weeks (If eligible)Up to 26 weeks (If eligible)
Common Law SeveranceUp to 24 months’ pay$0 (Exempt under Ontario law)

How Long Does the Process Take?

Patience is mandatory. Employers who rush to claim a contract is frustrated after just 6 or 12 months often face severe human rights penalties for failing the duty to accommodate. Typically, it takes at least 2 years of continuous absence before an employer can safely initiate the final medical prognosis step. Once medical documentation confirms the impossibility of a return, the administrative payout process takes 1 to 2 weeks.

Frequently Asked Questions (FAQ)

Do I have to pay severance if the employee is never coming back?

Yes. Under the Ontario Employment Standards Act, a contract frustrated by illness or injury specifically triggers the requirement to pay statutory termination and severance pay, provided the employee meets the length-of-service criteria.

What if the employee refuses to provide a medical update?

Employees have a legal duty to cooperate in the accommodation process. If they repeatedly ignore reasonable requests for medical updates after a prolonged absence, you should consult an employment lawyer to discuss options for treating the silence as job abandonment.

Can a contract be frustrated if the employee is on WSIB?

Yes, but it is highly complicated. The Workplace Safety and Insurance Board (WSIB) has strict re-employment obligations that can complicate a frustration claim. You must ensure you are not violating WSIB rules before declaring frustration.

Does frustration of contract cut off their Long-Term Disability (LTD) benefits?

Generally, no. If the employee is actively receiving LTD benefits through the company’s insurance provider, those benefits usually continue as long as the employee remains medically disabled under the terms of the policy, even after the employment relationship ends.

Why shouldn’t I just fire them “without cause”?

Firing a disabled employee without establishing frustration will trigger human rights discrimination claims and open you up to massive common law severance damages. Proper legal frustration caps your liability to strict ESA minimums.

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