Return-to-Office and Constructive Dismissal: The Legal Minefield Employers Keep Walking Into

When Your Employer Changes the Deal, the Law Gives You Options They Don't Want You to Know About

Let me be direct. Most return-to-office mandates are not about productivity. They're about control. Executives who can't see butts in seats feel like they've lost the thread. So they mandate a return and wrap it in language about "collaboration" and "culture." But the data doesn't support the narrative, and the law doesn't support the power grab.

When Amazon Canada told corporate employees in September 2025 that they'd need to be back in the office five days a week starting January 2026, it sent shockwaves through the Canadian tech workforce. Many of these employees had been working remotely for three years. Some had been hired as remote workers. Others had relocated — to Barrie, to Kingston, to entirely different provinces — with their employer's knowledge and, in many cases, explicit encouragement.

Now they were being told to upend their lives on a few months' notice.

If you let someone work from home for three years — three years! — and then demand they show up five days a week, you've changed the deal. You can call it a "return" all you want. Legally, it's a new requirement. And if you didn't put a clear flexibility clause in the contract, you're exposed.

The smart employers figured this out early. They gave reasonable notice. They phased it in. They accommodated. The rest are about to get a very expensive education in constructive dismissal law. And honestly? I don't feel bad about it. You want loyalty? Start by keeping your promises.

The Legal Framework

The Supreme Court of Canada established the modern framework for constructive dismissal in Potter v. New Brunswick Legal Aid Services Commission, 2015 SCC 10. The court outlined two branches of the test:

1. The contract test: A single unilateral act by the employer that breaches an essential term of the contract — such as a significant change to location, duties, or compensation — constitutes constructive dismissal.

2. The conduct test: A course of employer conduct that, taken together, demonstrates the employer no longer intends to be bound by the employment contract.

Under the first branch, the critical question for return-to-office mandates is: has remote work become a fundamental term of employment?

When Remote Work Becomes an Implied Term

Before the pandemic, most employment contracts specified a physical workplace. The answer to "where do you work?" was straightforward. Then COVID-19 happened, and millions of employees were sent home. Many stayed home for two, three, even four years.

Canadian courts recognize that employment terms can be established not just by written contract, but by conduct and custom. When an employer permits an employee to work remotely for an extended period — particularly if the employee was hired during the pandemic for a remote role, or if the employer explicitly represented that remote work would continue — the work location term of the employment contract may have been impliedly amended.

In Croke v. VuPoint System Ltd., 2024 ONSC 1460, the Ontario Superior Court addressed a constructive dismissal claim arising from a unilateral change to working conditions. The case reinforced the principle that when an employer significantly alters the conditions under which an employee performs their work without consent, this can amount to a repudiation of the employment agreement.

The decision in Pham v. Qualified Metal Fabricators Ltd., 2023 ONSC 3311, similarly examined how changes to employment conditions — even those an employer characterizes as "operational necessity" — are measured against the employee's reasonable expectations based on the actual course of dealing between the parties.

The Key Factors Courts Consider

Every RTO situation is different. The strength of your claim depends on what your contract says about location, how long you've been remote, and whether you made life decisions based on the arrangement. Courts look at several fact-specific factors:

• How the employee was hired. If you were hired during the pandemic for an explicitly remote position, the case for constructive dismissal is strongest.

• The duration of remote work. An employee who worked remotely for three years has a stronger argument than one who worked from home for three months.

• Written representations. Did the employer make written statements about the permanence of remote work? These are powerful evidence.

• The employment contract. Does the contract specify a physical workplace? Does it contain a clause permitting the employer to change the work location? Such clauses, if broadly drafted, may protect the employer — but they must be clear and brought to the employee's attention.

• The materiality of the change. A shift from fully remote to one day per week may not be constructive dismissal. A shift from fully remote to five days in-office — particularly for an employee who relocated during the pandemic — almost certainly is.

• The employee's personal circumstances. Courts consider the impact of the change. An employee who moved 200 kilometres away during the remote work period faces a fundamentally different commute burden.

The Pandemic Precedents

The pandemic created a unique set of circumstances that courts are still working through. Several principles have emerged:

First, temporary emergency arrangements are not permanent contractual amendments. An employer who sent employees home in March 2020 as a COVID-19 response did not necessarily amend their employment contracts. Courts recognize the distinction between an emergency accommodation and a permanent change.

However — and this is the critical nuance — the longer the arrangement persists, the more likely courts are to treat it as a permanent term. What started as "temporary" in 2020 became, by 2022 or 2023, the normal course of dealing. Courts are pragmatic. They look at what actually happened, not what the employer intended.

In Kosteczko v. Paramount Resources Ltd., 2022 ABKB 60, the Alberta court examined how pandemic-era changes to work arrangements interacted with constructive dismissal principles. The decision highlighted that employers who fail to communicate clear expectations about the temporary nature of remote work risk having those arrangements crystallize into employment terms.

The Relocation Factor

One of the most explosive issues in return-to-office litigation is relocation. During the pandemic, many employees moved — some to smaller cities, others to different provinces. They did so with the knowledge, and often the encouragement, of their employers. Now these employees are being told to return to offices that may be hundreds of kilometres from their homes.

Canadian courts have long recognized that requiring an employee to relocate a significant distance can constitute constructive dismissal. The leading case of Marinaccio v. Peel Children's Aid Society, 2002 CanLII 7804 (ON SC), established that a substantial change to an employee's work location — particularly one that significantly increases commuting time or requires a move — can breach the employment contract.

The pandemic relocation wave has amplified this principle. Employees who moved with employer knowledge (or at least acquiescence) have strong arguments that the employer implicitly accepted the new arrangement.

What Employers Can Do to Protect Themselves

This doesn't mean employers are powerless. Courts recognize legitimate business reasons for requiring in-person work. But how employers implement return-to-office policies matters enormously:

• Provide reasonable notice. Springing an RTO mandate on employees with two weeks' notice is reckless. Providing six to twelve months of advance notice demonstrates good faith and gives employees time to adjust.

• Use a phased approach. Moving from fully remote to one day per week, then two, then three — over a reasonable timeline — is far less likely to trigger constructive dismissal claims than an immediate full-time return.

• Accommodate individual circumstances. The duty to accommodate under the Human Rights Code doesn't disappear because the employer wants everyone in the office. Employees with disabilities, caregiving responsibilities, or other protected grounds may have independent rights to continued remote work.

• Review employment contracts. If the contract specifies a physical workplace and contains a relocation or flexibility clause, the employer has stronger ground. If the contract is silent or was signed pre-pandemic, the employer's position is weaker.

• Document the business rationale. Courts are more sympathetic to RTO mandates driven by genuine operational needs (collaboration requirements, client service, equipment access) than by executive preference or surveillance instincts.

What Employees Should Know

If your employer issues a return-to-office mandate that fundamentally changes your working conditions:

1. Don't resign immediately. Under Canadian law, an employee who is constructively dismissed can either accept the change (and lose the right to claim constructive dismissal) or treat the employment as terminated. But timing matters. You have a limited window to act.

2. Communicate in writing. Make clear that you do not accept the change and that you consider it a fundamental alteration of your employment terms.

3. Continue working under protest if possible. Courts have recognized that employees can continue working under changed conditions while preserving their constructive dismissal claim, provided they clearly communicate their non-acceptance. This is the "work under protest" doctrine, reinforced in Wronko v. Western Inventory Service Ltd., 2008 ONCA 327.

4. Get legal advice before acting. Constructive dismissal claims are highly fact-specific, and the wrong move can extinguish your rights. The strength of your claim depends on your specific contract, how long you've been remote, whether you relocated, and what your employer communicated about the permanence of remote work. General advice runs out fast here — your situation needs individual analysis, and that's exactly what Blackline provides.

5. Understand your duty to mitigate. Even if you have a strong constructive dismissal claim, you're required to make reasonable efforts to find comparable employment. Start looking before you need to.

The Bottom Line

The return-to-office movement is not just a workplace culture debate. It's a legal minefield. Employers who treat work location as a unilateral management prerogative are misunderstanding Canadian employment law. And employees who have been working remotely for years have rights they may not fully appreciate.

The pandemic rewrote employment contracts — not in writing, but in practice. Courts will hold both parties to what actually happened, not what a pre-pandemic document said.