TLDR: Under the Ontario Human Rights Code, every employer has a duty to accommodate employees whose work is affected by disability, religion, family status, pregnancy, or another protected ground — up to the point of undue hardship. The accommodation process is a shared obligation: employers must actively investigate and implement solutions; employees must cooperate and provide relevant information. Getting the process right requires knowing what information you can request, how to document the accommodation, when Individual Accommodation Plans are required, and what the undue hardship standard actually means. Getting it wrong is one of the fastest routes to an HRTO complaint.
What Is the Duty to Accommodate?
The duty to accommodate is one of the most foundational obligations in Ontario employment law. It arises from the Ontario Human Rights Code, which requires employers to make adjustments to work arrangements, rules, policies, or the physical environment to enable employees affected by a protected ground to fully participate in the workplace.
The obligation is not passive. Employers must actively seek out and implement solutions — it is not enough to make a general offer of flexibility and wait for the employee to figure out what they need. The Supreme Court of Canada confirmed in British Columbia (Public Service Employee Relations Commission) v. BCGSEU [the Meiorin decision] that accommodation must be “reasonable” and must represent the least discriminatory option that achieves the employer’s legitimate goal, up to the point of undue hardship.
One important nuance for Ontario employers: the duty to accommodate can arise even before an employee formally requests it. If an employer ought reasonably to know that an employee may have an accommodation need — because of visible signs of struggle, a disclosed diagnosis, or third-party information — the duty to inquire is triggered. Waiting for the employee to come to you is not a defence if the need was reasonably apparent.
Which Protected Grounds Trigger Accommodation?
The Ontario Human Rights Code prohibits discrimination on 17 grounds. Not all of them involve the same intensity of accommodation obligation, but all of them can give rise to workplace accommodation needs:
| Protected Ground | Common Workplace Accommodation Needs | Accommodation Complexity |
|---|---|---|
| Disability (physical, mental, episodic) | Modified duties, schedule flexibility, assistive technology, remote work, extended leave | High — most frequent and most complex accommodations |
| Creed (religion) | Prayer time, religious observance days off, dietary requirements, dress code exceptions | Medium — scheduling and policy adjustments usually sufficient |
| Family status (caregiving obligations) | Schedule flexibility for childcare, eldercare, medical appointments for dependants | Medium — must be substantial obligation, not mere preference |
| Pregnancy / sex | Modified duties during pregnancy, breastfeeding time/space, return-to-work adjustments | Medium — physical limitations well-documented; return-to-work more complex |
| Age | Ergonomic adjustments, phased retirement arrangements, technology accommodations | Low-medium — less commonly litigated but valid basis for accommodation |
| Gender identity / expression | Washroom access, pronoun use in workplace communications, dress code flexibility | Low — mostly policy and culture adjustments |
| Place of origin / citizenship | Language supports, credential recognition, documentation flexibility | Low-medium — often intersects with disability or other grounds |
Disability accounts for the majority of accommodation requests — and the majority of HRTO complaints when the process breaks down. Mental health conditions (anxiety, depression, PTSD, ADHD) are included in the Code’s definition of disability and are among the fastest-growing categories of accommodation need in Ontario workplaces.
Procedural vs Substantive Duty
Ontario employers need to understand that the duty to accommodate has two distinct components, and failing either one is a Human Rights Code violation:
| Type of Duty | What It Requires | Common Failure Mode |
|---|---|---|
| Procedural duty | Engaging in a genuine, individualized process: gathering information, investigating options, consulting the employee, documenting the effort | Refusing the request without investigation; offering a generic solution without assessing individual needs; failing to keep the employee informed |
| Substantive duty | Actually providing an accommodation that meets the employee’s needs to the point of undue hardship | Going through the motions but offering an accommodation that doesn’t address the employee’s actual limitation; citing undue hardship without proper analysis |
An employer can follow a procedurally perfect process and still violate the Code if the final accommodation is inadequate. Conversely, providing a good accommodation does not cure the failure to engage in a proper process if the employee was left in the dark and their needs weren’t genuinely investigated. Both dimensions must be satisfied.
The Step-by-Step Accommodation Process
Step 1: Receive and acknowledge the request
As soon as an accommodation need is communicated — verbally, in writing, or through a third party — acknowledge it promptly. Confirm in writing that the request has been received and that the employer takes it seriously. Do not dismiss an informal request because it wasn’t submitted on a specific form or through a specific channel.
If the employee has not formally raised the issue but the need is apparent (the employee is visibly struggling, has disclosed a condition, or has taken repeated medical absences), the employer’s proactive duty to inquire may require reaching out.
Step 2: Identify the Code ground and gather preliminary information
Understand which protected ground the request relates to. Ask the employee to describe how the ground affects their work and what type of adjustment might help. This is a conversation, not an interrogation. The purpose is to understand the functional impact, not to investigate whether the employee’s condition is “legitimate.”
Step 3: Request necessary supporting information
For disability-related requests, you may need functional abilities information from a health professional. See the next section for the rules on what you can and cannot ask for. For religious accommodations, you can ask the employee to explain the practice and its scheduling or policy implications — you cannot demand theological justification or question whether the belief is “sincere enough.”
Step 4: Assess accommodation options
Investigate all options, starting with the least disruptive. This may include:
- Modifying the employee’s duties (temporarily or permanently)
- Adjusting their work schedule or hours
- Providing assistive technology or ergonomic equipment
- Permitting remote work or hybrid arrangements
- Reassigning non-essential tasks
- Transferring the employee to an alternative role
- Providing extended or modified leave
Consult with the employee throughout this step. Bring in an occupational health professional if the functional picture is unclear. Involve the union if applicable. Document all options considered and the reasons for ruling any of them out.
Step 5: Implement the accommodation
Once an appropriate accommodation is identified, implement it promptly. Delayed implementation after a proper accommodation is identified is itself a Code violation. Communicate the terms of the accommodation in writing to the employee, their manager, and any operational staff who need to know (without disclosing medical or personal details unnecessarily).
Step 6: Monitor and review
Accommodation is not a one-time event. Accommodation needs change as conditions evolve, treatments progress, or work requirements shift. Build in a review schedule — quarterly for active medical conditions, annually for stable long-term arrangements. Check in with the employee regularly to confirm the accommodation is still working.
What Medical Information Can You Request?
This is one of the most common areas of confusion in the accommodation process. The Ontario Human Rights Commission provides clear guidance: employers may ask for functional information, not clinical information.
| You CAN ask for | You CANNOT ask for |
|---|---|
| Confirmation that a disability or medical condition exists | The specific diagnosis or name of the medical condition |
| How the condition affects the employee’s ability to perform specific job functions | Details about the nature, cause, or history of the condition |
| What type of accommodation would allow the employee to perform their job | Access to medical records, clinical notes, or treatment history |
| The expected duration of the accommodation need (if the condition is episodic or expected to resolve) | Contact with the employee’s treating physician directly (without consent) |
| Whether there are any safety considerations for the employee or others in the workplace | Information about past medical history unrelated to the current accommodation need |
A useful test: would the information you’re requesting actually change what accommodation you’d offer? If not, you probably shouldn’t be asking for it. The purpose of information gathering is to enable effective accommodation — not to challenge whether the employee “really” needs it.
Independent medical examinations
An employer can request an independent medical examination (IME) in limited circumstances — typically when the employee’s treating physician’s information is internally inconsistent, when the employee’s claimed limitations seem inconsistent with observed behaviour, or when the accommodation request involves significant operational impact. Even then, the IME must be focused on functional abilities, not diagnosis. Ordering an IME as a reflexive response to any accommodation request is aggressive and often unnecessary.
Individual Accommodation Plans (IAPs)
For employers with 50 or more employees, the AODA Employment Standard requires a written process for developing Individual Accommodation Plans and mandates that an IAP be created for every employee who receives accommodation. For employers under 50 employees, IAPs are strongly recommended even though not legally required.
What an IAP must include
- The employee’s relevant functional limitations (not the diagnosis)
- The specific accommodations agreed to
- Any information provided by occupational health or external experts
- Any customized emergency evacuation or workplace emergency response information
- The review schedule and next review date
- The process for the employee to request adjustments to the plan
Who should see the IAP
The IAP is a confidential document. Share only what is operationally necessary:
| Who | What They Should Know | What They Should NOT Know |
|---|---|---|
| The employee’s direct manager | The specific work adjustments and any scheduling/duty restrictions | Medical details, diagnosis, treatment information |
| HR | Full IAP with functional information and process details | Typically holds the full file in confidence |
| Payroll / scheduling | Only the scheduling or pay-related adjustments they need to administer | Medical or personal details |
| Colleagues | Nothing about the accommodation unless the employee consents to disclosure | Everything else |
The Undue Hardship Standard
Undue hardship is the only legal basis for an employer to refuse or cap an accommodation. The Ontario Human Rights Code and the OHRC are explicit that the standard is very high — and that the employer carries the burden of proving it.
The three lawful factors
- Cost: The accommodation must impose costs so significant — relative to the employer’s overall financial position — that they threaten the organization’s viability. General inconvenience or preference for a cheaper option is not undue hardship.
- Outside sources of funding: Before claiming cost-based undue hardship, the employer must consider all external funding: government grants, tax credits, accessibility subsidies, insurance coverage. Only net cost after available assistance counts.
- Health and safety: The accommodation would create a risk of significant harm to the employee themselves or to other people in the workplace. This must be based on objective evidence, not speculation or theoretical risk.
What is NOT undue hardship
| Factor | Lawful Undue Hardship? | Why Not |
|---|---|---|
| Co-worker preferences or morale (“other employees will be upset”) | No | Expressly excluded by OHRC guidance |
| Business inconvenience (“it disrupts our workflow”) | No | Some disruption is inherent in accommodation; inconvenience is not hardship |
| Preference for a different accommodation solution | No | The employer must provide the most appropriate option, not their preferred one |
| The employee’s position is “too important to modify” | No | Essential duties must be identified through analysis, not assumption |
| Third-party complaints about the accommodation | No | Third-party preferences are not a Code-recognized hardship factor |
Employee Obligations in the Process
The accommodation process is not one-directional. Employees have their own set of obligations, and courts and the HRTO have confirmed that an employee who fails to cooperate may jeopardize their claim:
- Communicate the need clearly: The employee must tell the employer what they need and how their protected ground affects their work. The employer cannot read minds.
- Provide requested information: When the employer legitimately requests functional information, the employee must cooperate in obtaining it. Refusing to see a doctor when one is needed delays the process and may be treated as non-cooperation.
- Try proposed accommodations in good faith: If the employer offers a reasonable accommodation, the employee must give it a genuine try before rejecting it as inadequate.
- Keep the employer informed: If the accommodation stops working — because the condition changes, the work changes, or the solution has gaps — the employee must tell the employer so adjustments can be made.
- Not insist on perfect accommodation: The employee is entitled to adequate accommodation, not necessarily their preferred arrangement. Refusing a reasonable solution because it isn’t ideal is not protected behaviour.
Common Forms of Accommodation
| Accommodation Type | Examples | Common for Which Grounds |
|---|---|---|
| Modified duties | Removing heavy lifting, reducing client-facing exposure, adjusting cognitive load | Physical disability, mental health, pregnancy |
| Schedule adjustments | Flexible start/end times, reduced hours, shift changes, religious observance days | Disability (medical appointments), creed, family status |
| Remote work or hybrid | Full remote for mobility limitations, partial remote for anxiety management | Physical disability, mental health, family caregiving |
| Assistive technology | Screen readers, voice-to-text software, ergonomic keyboards, large monitors | Visual impairment, hearing loss, physical disability |
| Workspace modifications | Accessible workstation, private space for prayer or medical procedures, quiet zone | Physical disability, creed, sensory sensitivity |
| Temporary or extended leave | Medical leave beyond ESA minimums, phased return to work | Disability, mental health, serious illness |
| Role reassignment | Transfer to a position that matches functional abilities | Disability preventing essential duties in current role |
| Policy exceptions | Dress code exceptions, attendance policy modifications, food policy exceptions | Creed, disability, medical needs |
Accommodation in Return-to-Work Situations
Return to work after medical leave is one of the highest-stakes moments in the accommodation process. The employee is often coming back with reduced capacity, and the employer must provide appropriate transition support rather than expecting immediate full performance.
Key principles for RTW accommodation
- Start the accommodation conversation before the return date: Don’t wait for the first day back to figure out what adjustments are needed. Plan in advance so the workplace is ready.
- Phased return is generally appropriate: Returning to 50% capacity and building up over 4–8 weeks is often more effective and legally required than demanding immediate full-time attendance.
- WSIB RTW obligations are separate but parallel: For work-related injuries, WSIB’s Return to Work program creates additional re-employment obligations for employers with 20 or more employees. These run alongside — not instead of — the Human Rights Code accommodation obligations.
- Monitor and adjust: A return-to-work plan is a living document. If the initial plan isn’t working, modify it rather than treating the accommodation process as closed.
For more detail on the legal framework for return-to-work programs, see our guide to return to work programs in Ontario.
Connection to AODA Requirements
The Accessibility for Ontarians with Disabilities Act (AODA) and the Ontario Human Rights Code operate in parallel and should not be confused. Here’s the key difference:
| Feature | Ontario Human Rights Code | AODA Employment Standard |
|---|---|---|
| Nature of obligation | Outcome-based: must provide adequate accommodation to each individual | Process-based: must have systems and processes in place |
| Who it applies to | All employers, regardless of size | Private sector: 1+ employees; IAP written process: 50+ employees |
| What it requires | Actual, individualized accommodation to the point of undue hardship | Written accommodation process, notification in job postings, documented IAPs (50+) |
| Enforcement | HRTO complaint; significant damages including general damages | AODA Director audit; fines up to $100,000/day for corporations |
| Deadline filing | HRTO complaint within 1 year of last incident | December 31, 2026 filing deadline for 20+ employers |
Compliance with AODA’s written process requirements does not guarantee compliance with the Human Rights Code. An employer can have a beautiful IAP policy and still violate the Code if they fail to provide adequate accommodation in a specific case.
Common Employer Mistakes in the Accommodation Process
| Mistake | Why It’s a Problem | HRTO Risk |
|---|---|---|
| Requesting a diagnosis when functional information is sufficient | Violates employee’s privacy rights; not required under OHRC guidance | High — very common complaint ground |
| Delaying the process without explanation | Procedural duty violation; employee is left without accommodation during delay | High |
| Failing to consider all options before declaring undue hardship | Undue hardship requires genuine analysis, not quick refusal | Very High — undue hardship is frequently contested at HRTO |
| Disciplining for performance issues connected to the disability without accommodation review | Discrimination; performance issues linked to a protected ground must be addressed through accommodation first | Very High |
| Not creating an IAP for 50+ employee organizations | AODA violation; also undermines documentation in any subsequent HRTO proceeding | Medium (AODA) + High (HRTO if accommodation inadequate) |
| Treating accommodation as a one-time event and not reviewing | Accommodation needs change; failing to review can result in the accommodation becoming inadequate | Medium |
| Disclosing medical information to managers or colleagues who don’t need it | Privacy violation; can generate separate claims under PIPEDA or HRTO | Medium |
| Assuming the employee’s preferred accommodation is not achievable without investigating | Procedural failure; must genuinely explore all options | High |
When Accommodation Breaks Down: HRTO Complaints
When an employer fails to accommodate properly — whether by refusing the request, offering inadequate accommodation, delaying unreasonably, or retaliating against an employee who requested accommodation — the employee can file an application with the Human Rights Tribunal of Ontario (HRTO).
Key facts for employers:
- Limitation period: 1 year from the last act of discrimination (or last event in a continuing series)
- Remedies available: Reinstatement, compensation for lost income, general damages for injury to dignity (typically $5,000–$50,000+), and public interest remedies requiring policy changes
- No threshold: The HRTO has jurisdiction over all Ontario employers, regardless of size
- Reprisal is a separate violation: Taking adverse action against an employee because they requested accommodation or filed an HRTO complaint is a standalone Human Rights Code violation
Strong documentation of a genuine, good-faith accommodation process is the employer’s best defence. If the process shows that the employer took the request seriously, gathered appropriate information, explored options, implemented something reasonable, and monitored the outcome — even if the accommodation wasn’t perfect — the employer has a credible defence against an HRTO application.
For comprehensive information on the legal framework underlying the duty to accommodate, see our guide to the duty to accommodate in Ontario. For situations involving return from medical leave, see our return to work program guide. For mental health accommodation specifically, see our guide on workplace mental health in Ontario.
If you need support designing an accommodation process, conducting an accommodation review, or responding to an HRTO application, contact HRX Connect.
Frequently Asked Questions
Does an employee have to request accommodation in writing?
No. There is no legal requirement under the Ontario Human Rights Code for an accommodation request to be made in writing. An employee can request accommodation verbally, by email, through a manager, or even through a union representative. Once the employer becomes aware of an accommodation need — through any channel — the duty to accommodate is triggered. Employers should document verbal requests themselves and follow up in writing to confirm the request and next steps.
Can an employer ask for a doctor’s note for an accommodation request?
Yes, but the employer’s request must be proportionate and minimally intrusive. Employers can ask for information about the employee’s functional limitations — what they can and cannot do — and what type of accommodation would address those limitations. They cannot demand a diagnosis, a prognosis, or details about the nature or cause of the medical condition. A doctor’s note confirming functional restrictions is appropriate. A demand for a detailed medical file is not.
What is the undue hardship standard in Ontario?
Undue hardship is the only legal basis for an employer to refuse or limit an accommodation under the Ontario Human Rights Code. The standard is deliberately high. Only three factors can be considered: the financial cost of the accommodation, outside sources of funding available to offset the cost, and health and safety risks to the employee or others. Factors such as employee morale, inconvenience, co-worker preferences, or the employer’s preference for a different solution are not valid undue hardship considerations. The employer bears the burden of proving undue hardship.
What is an Individual Accommodation Plan and when is one required?
An Individual Accommodation Plan (IAP) is a written document that records the accommodation arrangements for a specific employee. Under the AODA Employment Standard, employers with 50 or more employees must have a written process for developing IAPs and must create one whenever an accommodation is provided. IAPs typically include the employee’s relevant functional limitations, the specific accommodations approved, implementation dates, any information from occupational health or other experts, and a review schedule.
Can an employer refuse to accommodate an employee because it costs too much?
Only if the cost creates genuine undue hardship. The OHRC guidance sets a high bar: accommodation costs must be quantified, the employer must have considered all available external funding and tax credits, and the cost must be so significant relative to the employer’s overall financial position that it threatens the viability of the business. A large employer cannot refuse a relatively modest accommodation on cost grounds.
What happens if the employer’s preferred accommodation option differs from what the employee wants?
The employer does not have to provide the employee’s preferred accommodation — only an accommodation that genuinely meets their needs to the point of undue hardship. If the employer’s proposed accommodation is reasonable and addresses the employee’s functional limitations, the employee’s preference for a different solution does not make the employer’s offer inadequate. However, if the employer’s offer falls short of fully meeting the need, the employee can continue to push for a more complete solution.
What are an employee’s obligations during the accommodation process?
Employees must clearly communicate their need and how it affects their work; cooperate in obtaining relevant information when legitimately requested; respond to the employer’s reasonable information requests in a timely way; try proposed accommodations in good faith before rejecting them; and keep the employer informed about whether the accommodation is working. An employee who refuses to cooperate or who provides incomplete information may compromise their Human Rights Code protections.
Can an employer discipline or terminate an employee who is on accommodation?
Yes, but with significant caution. Disciplinary action for performance issues that are connected to an employee’s disability or other protected ground will almost certainly be treated as discriminatory. Before taking any disciplinary or termination action against an employee who has disclosed a disability or is receiving accommodation, employers should seek legal advice to assess whether the conduct in question is related to the protected ground.
Sources: Ontario Human Rights Commission – Accommodation Policy and Procedure Guide | Human Rights Legal Support Centre – Duty to Accommodate | Whitten & Lublin – Workplace Accommodation Ontario