Stress leave in Ontario allows you to step away from work to deal with serious mental health problems while keeping your job protected. During this time, you may be able to get short term disability, long term disability, or other disability benefits from an employer or private insurance policy so you can focus on your health instead of your paycheque.

Stress Leave in Ontario

Many people use the phrase “stress leave" to describe time off work when workplace stress and mental health issues become too much to handle. In legal terms, this usually means using sick leave under the Employment Standards Act (ESA) and, for a longer time away, relying on disability protections under the Ontario Human Rights Code.​

Stress‑related time off can be short, like a few days, or an extended period of weeks or months when a healthcare provider says you cannot safely do your job duties. While the law protects your job, income usually comes from short term disability, long term disability, or sometimes employment insurance (EI) sickness benefits, not from your employer’s regular pay.​

What Is Stress Leave in Ontario?

Stress leave in Ontario is time away from work because your mental health or stress‑related medical condition makes it unsafe or impossible to keep working.

Even if your symptoms are “invisible,” they are still real. Insurance companies and employers look at how your employee's medical condition limits your ability to work full‑time, even if you could manage a half day at home or light tasks now and then. When you get a clear doctor's note or medical note from a qualified health practitioner, your leave becomes medical leave, not just needing “a break.”

What Qualifies for Stress Leave

You may qualify for stress leave when stress-related struggles reach the point where you can no longer safely do your regular job duties. Common qualifying mental health conditions and symptoms include:​

• Major depression or anxiety linked to workplace stress

• Panic attacks, PTSD, or other mental health issues that affect focus or cause intense fear

• Severe stress that leads to chest pain, headaches, stomach problems, or chronic fatigue

• Sleep problems, brain fog, or irritability that make mistakes more likely at work

You do not need a perfect medical label or diagnosis. What matters most is that your healthcare provider can provide evidence that your medical condition stops you from working safely or consistently.​

Eligibility Criteria

For basic sick leave in Ontario, the Employment Standards Act gives most employees at least three unpaid sick days each calendar year for personal illness, injury, or medical emergency, including mental health problems. You qualify once you have worked for your employer for at least two consecutive weeks, whether you are full‑time, part‑time, permanent, or temporary.​

For income‑replacement disability benefits, you must also meet your employment contract or employment agreement rules and the insurance policy eligibility criteria. This usually means:​

• You are covered under a group plan or private insurance policy when the employee takes leave

• Your healthcare provider or health practitioner gives detailed medical documentation explaining why you cannot work

• Your condition fits the policy’s definition of disability, often tied to your own job duties at first and later to “any occupation” you are suited for​

Is Stress Leave Paid?

The ESA’s unpaid job-protected leave for sick leave is exactly that: unpaid sick leave. Your employer must protect your job and seniority, but is not required to pay you for those days off. Some employers provide a paid sick day bank or allow you to use unused sick leave days, but that comes from company policy or a collective agreement, not from the law.​

To replace your income on stress-related leave, you may rely on:

• Employer short term disability

• Employer or private long term disability or term disability

• Employment insurance (EI) sickness benefits if you have enough insurable hours and no other coverage​

If your disability benefits are denied, it is important to seek legal advice quickly so you do not miss legal time limits to challenge the decision.​

How Long Can You Go on Stress Leave in Ontario?

By law, you get at least three unpaid sick days per calendar year for personal illness and medical emergencies. But when your mental health condition is serious, you may be off for many consecutive weeks or longer. In that case, your protection comes mainly from the Ontario Human Rights Code, which requires reasonable accommodation for disability unless it would be considered undue hardship for the employer.​

In real life, this often looks like months or even years away from regular work, supported by short term disability and then long term disability benefits where available. After a long absence, some employers argue “frustration of employment,” which can affect both your job status and severance pay, so talking to an employment lawyer before this happens can protect your legal rights.

How to Go on Stress Leave in Ontario?

Here is a simple step‑by‑step guide to taking stress leave in Ontario

1. Talk to a healthcare provider

• Book an appointment with your family doctor, psychiatrist, or another healthcare provider or qualified health practitioner.

• Explain your stress concerns, how workplace stress and other mental health challenges affect your sleep, mood, and ability to work.

• Ask for a clear doctor's note saying you need medical leave from work due to an illness, injury or medical condition.​

2. Notify your employer

• Give oral notice or written notice to your manager or HR that you are taking sick leave or stress-related leave for medical reasons.

• Follow any sick leave provisions in your employment agreement or collective agreement, including how to share your medical documentation.​

• You do not have to share every detail of your mental health conditions, but you must give enough information to show there is a real medical condition and that you cannot work right now.​

3. Apply for disability benefits

• Get the claim forms for short term disability or long term disability from HR or the insurer, depending on how your insurance policy works.

• Ask your health care professional to complete the medical sections, describing clearly how your mental health leave limits your job duties.​

• If you do not have private coverage, consider applying for sickness benefits through employment insurance as a backup source of income.​

Keep copies of every medical note, email, and claim form you send. This record will help if your employer refuses accommodation or if your disability benefits are later denied and you need to seek legal advice.​

Can You Be Fired While on Stress Leave?

When your stress leave is supported by proper medical documentation, your job is generally protected by the ESA and the Ontario Human Rights Code. Your employer cannot punish you just for taking mental health leave, and firing you because you used unpaid job protected leave may be discrimination and could amount to constructive dismissal or wrongful dismissal.​

However, job protection is not always simple:

• After a long absence, an employer may argue that your employment contract is “frustrated” because you will not be able to return in the near future.​

• Even then, they may still owe you minimum severance pay and other ESA entitlements, especially when your leave is due to illness, injury or medical disability.​

Because these rules are complex, many people talk with an employment lawyer in Ontario before agreeing to resign or sign any documents related to ending their job while on stress leave.​

Denial of Stress Leave Claims

Even when your medical documentation is strong, insurers often deny short term disability or long term disability claims related to mental health and other mental health issues. They may say there is not enough “objective proof,” argue that you can still do some work, or decide your condition is “pre‑existing” under the insurance policy.

Common denial reasons include:

• Saying your stress leave is just normal workplace stress, not a disability

• Claiming you can return to lighter job duties or a half day schedule

• Relying on their own in‑house doctor, who reviews your file but never meets you, to say you are not disabled enough

Insurers often invite you to file an internal appeal. Disability lawyers warn that these appeals rarely succeed and can delay a proper legal claim until after the limitation periods expire. For this reason, many Canadians are told not to rely on appeals alone and instead contact a disability law firm to understand their best options.​

Meera’s Story: When Short Term Disability Is Denied

Meera is a 43‑year‑old pharmacist and mother of two. During flu season, she worked constant overtime, filling hundreds of prescriptions a day. At home, she handled all of the kids’ school needs and most of the housework. The workplace stress and pressure never stopped.

Over time, Meera’s stress concerns grew. She felt constant severe stress, had trouble sleeping, and started making small mistakes at work. She worried a slip‑up could harm a patient. Her doctor, a caring health practitioner, diagnosed a serious mental health condition caused by burnout and other mental health challenges and wrote a strong medical note saying Meera needed medical leave for her well being.​

Meera followed all the rules. She gave oral notice to her manager, submitted medical documentation, and applied for short term disability through her employer’s insurance policy. The policy promised disability benefits when an employee's medical condition made it impossible to perform regular job duties. But the insurer decided Meera could still work with “some adjustments” and denied her claim. They suggested the stress was temporary and that occasional sick leave or a sick day would be enough.​

With only unpaid sick leave available, Meera worried about paying her bills. Late one night, she found Share Lawyers’ information on medical leave and disability denials and booked a free consultation. The Share Lawyers team listened to her story and explained that appealing directly to the insurer might just lead to more delays and more denials. Their disability lawyers do not recommend relying only on appeals when a valid claim has been denied.

Instead, they reviewed her employment contract and insurance policy, gathered fuller reports from her health care professional, and started a legal claim against the insurer. They showed how her mental health leave was necessary for patient safety and how the insurer had ignored key parts of her medical documentation.​

In the end, Meera reached a settlement that paid her short term disability and recognized her right to ongoing long term disability if she could not return to her pharmacy work. This allowed her to step back from unsafe job duties, focus on therapy and rest, and plan a gradual return to work that truly protected her well being.​

Seek Legal Assistance of an Employment Lawyer in Ontario

When stress leave becomes tangled with job loss, denied benefits, or pressure to return too soon, it is important to seek legal advice from an Ontario employment lawyer and disability lawyer. Legal help can make a real difference if:​

• Your employer refuses reasonable accommodation or pushes you back to work before you and your doctor feel ready

• Your short term disability or long term disability claim is denied even though your healthcare provider supports your medical leave

• You are told you have been terminated, or that your job is “frustrated,” while you are still on stress related leave or receiving disability benefits

Share Lawyers has focused on denied disability benefits and employment‑related problems connected to medical leave for many years. We often offer free consultations and there are no fees unless you win. We can help to organize medical documentation and provide evidence that meets strict eligibility criteria.

Taking stress leave is a responsible step. It gives you job protected time and a chance to heal so you can return to work safely and protect both your health and your future. If you’ve been denied your stress leave in Ontario, contact our disability lawyers today.