The Duty to Accommodate in Ontario Workplaces: What Employers Must Do

Ontario employers hear the phrase duty to accommodate constantly, but a lot of confusion sits underneath it: what triggers it, how far it goes, and when an employer is legally allowed to say no. It's not an unlimited obligation, and it's not something an employer can wave away with "that's just how the job works" either.

Here's the general framework, in plain language.

What Triggers the Duty

The duty to accommodate arises when an employee's need connects to one of the grounds protected under Ontario human rights law — most commonly disability, but also grounds like family status (such as childcare or eldercare responsibilities), creed, sex (including pregnancy), and others. Once an employer knows, or reasonably ought to know, that a workplace rule, policy, or requirement is disadvantaging someone because of a protected characteristic, the duty is engaged.

It doesn't require a formal complaint or a lawyer's letter. An employee mentioning a medical restriction, a religious observance conflict, or a childcare scheduling issue can be enough to start the clock.

What Accommodation Can Look Like in Practice

Accommodation is deliberately open-ended because needs vary enormously. Common examples include:

• Modified duties or a temporary change in job tasks
• Adjusted hours or a modified schedule
• Physical workplace modifications (equipment, workstation changes)
• Extended or flexible leave beyond what a policy would normally allow
• Reassignment to a different role, where a return to the original role isn't workable

There is no fixed list an employer can simply pick from — the point of accommodation is that it responds to the specific person's specific need, not a generic template.

The Undue Hardship Limit

The duty to accommodate is not unlimited. An employer can stop short of full accommodation where doing so would cause undue hardship. Ontario human rights law generally recognizes a narrow set of factors as relevant to that assessment, including:

• Cost — genuine, quantifiable cost to the business, not just inconvenience
• Outside sources of funding — whether financial help is available to offset the cost
• Health and safety requirements — where accommodating would create a real safety risk

Undue hardship is a high bar. Inconvenience, a preference for how a role has traditionally been done, or minor disruption generally won't meet it. An employer asserting undue hardship should expect to have to justify it with real evidence, not just a general sense that accommodation would be difficult.

Procedural vs. Substantive Duty

Ontario human rights law recognizes two overlapping parts of the duty to accommodate:

An employer can fail on the procedural side even if it eventually lands on a reasonable outcome — for example, by refusing to engage with a request at all, or by unilaterally deciding accommodation is impossible without exploring any options. Both sides of the duty matter.

A Practical Checklist for Employers

• [ ] Take any accommodation request seriously, even if it isn't phrased formally
• [ ] Ask for reasonable supporting information — not necessarily a full diagnosis
• [ ] Explore more than one possible accommodation option before ruling anything out
• [ ] Document the back-and-forth, including what was offered, accepted, or declined
• [ ] Reassess if circumstances change — accommodation isn't always a one-time decision
• [ ] Get legal advice before relying on undue hardship to deny a request

Frequently asked questions