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Mental Health Leave in Ontario: How to Request It, What Protection You Have, and What Your Employer Must Do
Mental health conditions can qualify for protected leave in Ontario. Under the Employment Standards Act, 2000, employees are entitled to job-protected sick leave. Where a mental health condition qualifies as a disability under the Ontario Human Rights Code, additional protections apply and your employer has a duty to accommodate you. But how you request, document, and handle your leave matters significantly to how protected you actually are.
Were you disciplined, demoted, or terminated after requesting mental health leave?
Retaliating against an employee for taking or requesting protected leave is prohibited under the Employment Standards Act, 2000 and the Ontario Human Rights Code. If your employer has taken action against you, get legal advice before the filing deadlines pass.
Call: 1-800-771-7882 Speak With an Employment LawyerWhat legal protections apply to mental health leave in Ontario?
Mental health leave in Ontario can be protected under two overlapping legal frameworks. Understanding which applies to your situation determines how long your leave can last and what your employer must do.
ESA sick leave
- Up to 3 unpaid, job-protected days per calendar year
- Available to most employees covered by the ESA
- Employer may request reasonable evidence but not a specific diagnosis
- Job protection applies throughout
Human Rights Code accommodation leave
- Applies where the condition qualifies as a disability
- No fixed maximum duration
- Employer must accommodate up to the point of undue hardship
- Significantly broader protection than ESA sick leave alone
How to request mental health leave without creating problems
Get medical support first
See a doctor and get medical documentation before you request leave. A note confirming that you require time away from work, without disclosing your specific diagnosis, is usually sufficient. Having documentation in hand before you speak with your employer significantly strengthens your position.
Put your request in writing
Notify your employer in writing that you are taking a medical leave. Written notice creates a record, triggers your employer's legal obligations, and protects you if the situation is disputed later. Verbal conversations alone are not sufficient.
Be clear but do not over-disclose
You do not need to disclose your diagnosis. State that you have a medical condition requiring leave and provide the documentation your employer is entitled to request. Over-disclosing medical details is not required and can sometimes create complications.
Keep records of everything
Save copies of all emails, messages, and letters related to your leave. Document the dates and content of any conversations. If a dispute arises, your records are critical evidence of what was communicated and when.
Get legal advice before resigning or signing anything
If your employer is applying pressure, offering a termination package, or asking you to sign any documents, get legal advice first. Resigning while on leave or signing a release without advice can significantly affect your legal options and entitlements.
What do you have to tell your employer about your mental health condition?
You do not have to disclose
- Your specific diagnosis
- Detailed medical history
- Treatment plan or medication
- The underlying causes of your condition
Your employer is entitled to
- Confirmation that you have a medical condition requiring leave
- General functional limitations or restrictions where relevant to accommodation
- Expected duration of leave if known
- Reasonable evidence of entitlement to the leave
Is your employer demanding your diagnosis or pressuring you to return before you are medically ready?
Demanding a diagnosis or pressuring an employee to return before they are medically cleared may violate the Ontario Human Rights Code. You have the right to meaningful accommodation. Get advice to understand your options.
Understand Your Rights Or call us: 1-800-771-7882Common mistakes employees make with mental health leave
What happens when you return to work after mental health leave?
Your employer must reinstate you to the same position or a comparable one on return. Where your condition qualifies as a disability, your employer may also be required to accommodate your return, including through adjusted duties, modified hours, or a gradual return-to-work plan. If your employer fails to accommodate or treats you differently on return, that may constitute discrimination under the Ontario Human Rights Code.
Frequently asked questions about mental health leave in Ontario
Can I take mental health leave in Ontario?
Yes. Mental health conditions can qualify for job-protected sick leave under the Employment Standards Act, 2000 and for accommodation leave under the Ontario Human Rights Code where the condition qualifies as a disability. The protections available to you depend on the nature and severity of your condition and how the leave is documented and requested.
Do I need a doctor's note for mental health leave?
Your employer may request reasonable evidence of your entitlement to leave. A note from a doctor confirming that you require time off is usually sufficient. You do not need to disclose your specific diagnosis. Having documentation in place before you request leave is strongly advisable.
Can my employer deny mental health leave?
Not where the leave qualifies under the ESA or the Ontario Human Rights Code. Denying a protected leave, or retaliating against an employee for requesting it, may give rise to a Ministry of Labour complaint or a human rights application. Get legal advice promptly if your leave has been denied.
Can I be fired while on mental health leave?
Generally, no. Terminating an employee because of a mental health condition or while they are on protected leave exposes the employer to significant liability under the Ontario Human Rights Code and the Employment Standards Act, 2000. A termination in these circumstances may give rise to both a human rights complaint and a wrongful dismissal claim.
Do I have to tell my employer my mental health diagnosis?
No. You are not required to disclose your specific diagnosis. Your employer is entitled to confirmation that you have a medical condition requiring leave and general information about your functional limitations where relevant to accommodation. They cannot demand your detailed medical history or treatment information.
What is the difference between mental health leave and stress leave in Ontario?
These terms are often used interchangeably. Both refer to time away from work due to a mental health condition. The legal framework that applies, whether the ESA or the Ontario Human Rights Code, depends on the nature and severity of the condition and whether it qualifies as a disability. For a detailed breakdown see our guide to stress leave in Ontario.
Speak with an Ontario employment lawyer about mental health leave
If your employer has questioned, denied, or retaliated against you for requesting mental health leave, our team can help. We advise employees across Ontario on human rights complaints, accommodation disputes, and wrongful dismissal claims. Contact us for a confidential consultation.
Call us at 1-800-771-7882 or fill out the form below and we will be in touch.
The article in this client update provides general information and should not be relied on as legal advice or opinion. This publication is copyrighted by Achkar Law Professional Corporation and may not be photocopied or reproduced in any form, in whole or in part, without the express permission of Achkar Law Professional Corporation. ©