WSIB vs Sick Note Ontario | Which to Choose

When you're injured or ill and can't work, choosing between a WSIB claim and a regular sick note affects your benefits and coverage.

Updated August 2026, Current Ontario ESA and CPSO telemedicine standards.

Need a sick note in Ontario? MedLetter provides official physician-signed documentation for $49 with same-day delivery. No walk-in clinic visit needed — submit your request in 2 minutes and receive your note by email. Valid for employers, universities, and insurance across Ontario.

Understanding the Difference

Determine whether your condition is work-related (WSIB claim) or non-work-related (regular sick note). Navigating the complexities of workplace absences in Ontario can be challenging, especially when you are unwell. The primary distinction lies in the origin of your illness or injury. If your condition stems directly from your employment, it falls under the jurisdiction of the Workplace Safety and Insurance Board (WSIB). Conversely, if your ailment is entirely unrelated to your job, a standard medical certificate or sick note is the appropriate documentation. Understanding this difference is crucial for ensuring you receive the correct benefits and protections under Ontario law.

When to File a WSIB Claim

Caused by a workplace accident

Developed due to workplace conditions

Aggravated by work activities

Related to workplace harassment

WSIB covers medical costs, wage replacement (85% of net earnings), and rehabilitation. It is a no-fault insurance system designed to protect both employees and employers in the event of workplace injuries or illnesses. If you work in a physically demanding environment, such as an Amazon warehouse in Brampton (Bramalea, Heart Lake, Springdale, and surrounding areas) or a manufacturing plant in Hamilton, the risk of workplace injury may be higher. However, WSIB claims are not limited to physical injuries; they can also encompass occupational diseases developed over time or psychological conditions resulting from severe workplace harassment. Filing a claim promptly is essential, as delays can complicate the approval process and delay your benefits.

When to Get a Regular Sick Note

Unrelated to work (flu, personal injury)

Pre-existing condition not aggravated by work

Mental health condition not caused by workplace factors

A regular sick note is necessary when your inability to work is due to personal health issues that have no connection to your employment. For instance, if you contract a severe case of the flu, sustain an injury while playing sports on the weekend, or require time off to manage a pre-existing chronic condition, a standard sick note is the correct course of action. This documentation serves to verify your illness to your employer and justify your absence, ensuring that your time off is recorded accurately and in compliance with company policies.

Grey Areas

Some situations are unclear. You may want to file a WSIB claim AND get a sick note as backup. For example, if you have a pre-existing back condition that you believe was exacerbated by lifting heavy boxes at work, the line between a personal health issue and a workplace injury becomes blurred. In such cases, it is often advisable to initiate a WSIB claim while simultaneously obtaining a regular sick note. This dual approach ensures that your absence is documented and protected, regardless of the final determination made by the WSIB. It provides a safety net, ensuring you are not left without documentation if your WSIB claim is ultimately denied.

MedLetter's Role

We provide regular sick notes for non-work-related conditions. If your WSIB claim is denied, we can provide interim sick notes from CPSO-registered physicians. Our service is designed to be fast, efficient, and fully compliant with Ontario regulations. Whether you are an employee at Shopify in Ottawa or a public servant in the Ontario Public Service (OPS) in Toronto, our telemedicine platform connects you with licensed professionals who can assess your condition and provide the necessary documentation without the need for an in-person clinic visit.

Ontario Employment Standards: Your Rights

Under Ontario's Employment Standards Act, 2000 (ESA), employees are entitled to 3 unpaid sick days per year (some employers offer paid days). Important provisions:

Employers cannot require a doctor's note for ESA-protected sick days as of January 2024 (Working for Workers Act amendments)

The Ontario Human Rights Code requires employers to accommodate medical conditions to the point of undue hardship

Federally regulated employees in Ontario get 10 paid sick days under the Canada Labour Code

Many Ontario employers (including Shopify, TD Bank, RBC, Amazon, Loblaws, and government agencies) still request notes as a matter of company policy (distinct from legal requirement)

Understanding your rights under the ESA is fundamental to protecting your employment status when you are ill. The recent amendments under the Working for Workers Act have significantly altered the landscape, explicitly prohibiting employers from demanding medical notes for the three statutory sick days. This change aims to reduce the burden on the healthcare system and respect the privacy of employees. However, it is important to note that this protection only applies to those specific three days. For longer absences, or if your employer's internal policies dictate otherwise, a sick note may still be required. Furthermore, the Ontario Human Rights Tribunal provides a mechanism for employees to seek redress if they believe their employer has failed to accommodate their medical needs appropriately.

Statistics: Healthcare Access in Ontario

According to Ontario Health and Statistics Canada (2025-2026):

2.3 million Ontarians lack a regular family doctor or nurse practitioner

Average emergency room wait time in Ontario: over 4 hours for non-urgent cases

Walk-in clinic wait times in the GTA: 1.5-3 hours on average

Ontario has the lowest physician-to-population ratio of any large province

These statistics highlight the significant challenges many Ontarians face when trying to access timely medical care. The shortage of primary care providers means that obtaining a simple sick note can become a day-long ordeal, involving hours spent in crowded waiting rooms. This is particularly problematic for individuals living in rapidly growing cities like Kitchener, London, or Windsor, where healthcare infrastructure may struggle to keep pace with population growth. Telemedicine services like MedLetter offer a vital alternative, providing quick and convenient access to medical professionals for routine documentation needs.

Practical Steps for Ontario Employees

1. Know the ESA - Your your employer faces consequences for penalizing you for taking your 3 statutory sick days
2. Check your employment contract - Many Ontario employers (including Shopify, TD Bank, RBC, Amazon, Loblaws, and government agencies) offer 5-10 paid sick days beyond the ESA minimum
3. Unionized workers - OPSEU, CUPE, and Unifor contracts typically provide 12-18 paid sick days annually
4. Document everything - Keep a record of when you called in and who you spoke to
5. Accommodation requests - If you have a chronic condition, consider requesting formal workplace accommodation under the OHRC

Taking proactive steps can help you navigate workplace absences more smoothly. Always review your employment contract or collective agreement, as these documents often provide benefits that exceed the minimum standards set by the ESA. For instance, employees at large financial institutions like TD Bank or RBC may have access to comprehensive short-term disability programs that require specific medical documentation. Keeping detailed records of your communications with your employer regarding your absence is also crucial, as it provides a clear timeline of events should any disputes arise.

When a Sick Note May Not Be Required

Under Ontario law, while the ESA provides some protection for short absences, smart employees still get documentation for:

Your 3 annual ESA sick days (Working for Workers Act, 2024)

Family responsibility leave (up to 3 days)

Bereavement leave (up to 2 days)

Domestic or sexual violence leave

While the law provides these exemptions, the reality of the modern workplace often differs. Many employers, particularly in high-turnover industries or large corporate environments, maintain strict attendance policies that mandate medical documentation for any absence, regardless of the legal minimums. This discrepancy between legal rights and company policy can create confusion and stress for employees who are already dealing with health issues. It is always advisable to clarify your employer's specific requirements regarding sick notes to avoid any potential disciplinary action.

Understanding Mental Health Documentation

Mental health conditions are legitimate medical reasons for workplace absence. The Canadian Mental Health Association reports:

1 in 5 Canadians experiences a mental health condition in any given year

Mental health conditions account for approximately 30% of short-term disability claims

Anxiety and depression are the most common reasons for mental health-related work absences

Early intervention and appropriate time off can prevent longer-term disability

The stigma surrounding mental health in the workplace is gradually diminishing, but challenges remain. Documenting a mental health absence requires a delicate balance between providing sufficient information to justify the time off and protecting the employee's privacy. A well-crafted sick note from a licensed professional can validate the need for a leave of absence without disclosing sensitive diagnostic details, ensuring that the employee receives the necessary support and accommodation upon their return to work.

What a Mental Health Sick Note Covers

A physician can document:

Inability to perform job duties due to mental health symptoms

Recommended duration of absence

Any workplace modifications needed upon return

Referral recommendations (without disclosing specific diagnosis to employer)

Your employer is not entitled to know your specific diagnosis. The note only needs to confirm you have a medical condition that prevents you from working. This principle of medical confidentiality is paramount and is strictly upheld by the College of Physicians and Surgeons of Ontario (CPSO). When you obtain a sick note through MedLetter, our physicians ensure that the documentation meets all legal and professional standards, providing your employer with the necessary information while safeguarding your privacy.

Urgent Situations: When You Need a Note Fast

There are many scenarios where obtaining a sick note becomes an urgent necessity. Perhaps your boss is demanding a note by tomorrow morning, or you called in sick without realizing your company policy requires documentation for even a single day's absence. These situations are particularly stressful if they occur over the weekend or during the evening when traditional walk-in clinics in cities like Mississauga or Toronto are closed. In these high-pressure moments, waiting hours in an emergency room is not a viable option. MedLetter's telemedicine platform is designed to address these urgent needs, providing a fast, reliable, and legally compliant solution when time is of the essence. You can New sick-note requests are temporarily paused while we review our service. We are not accepting new orders at this time. immediately, ensuring you meet your employer's deadlines without the added stress of navigating the traditional healthcare system.

Comparing Your Options: WSIB vs. Regular Sick Note

To help clarify the differences, here is a comparison of the two primary types of medical documentation for workplace absences in Ontario:

Frequently Asked Questions

Can I get a sick note online in Ontario?
Yes. CPSO-licensed physicians can assess patients through virtual consultations and issue legally valid sick notes accepted by Ontario employers (including Shopify, TD Bank, RBC, Amazon, Loblaws, and government agencies). This is fully compliant with current telemedicine guidelines.

How much does an online sick note cost in Ontario?
MedLetter charges a flat $49 for a sick note with same-day delivery. This includes the physician assessment and official documentation.

Will my Ontario employer accept an online sick note?
Yes. The College of Physicians and Surgeons of Ontario recognizes virtual care. Online sick notes are legally equivalent to in-person notes. Employers across the province, from the TTC to OPG, are required to accept valid medical documentation from licensed professionals.

How long does it take to get a sick note from MedLetter?
Most sick notes are delivered within 2-6 hours of submission. Same-day delivery is standard, making it ideal for urgent situations.

What if my employer demands to know my diagnosis?
Under Ontario law and privacy regulations, your employer is not entitled to know your specific medical diagnosis. They only need confirmation that you have a legitimate medical condition preventing you from working and the expected duration of your absence.

Can I use a sick note for a mental health day?
Absolutely. Mental health conditions are recognized as valid medical reasons for absence. A sick note can document your inability to work due to mental health symptoms without disclosing the specific diagnosis to your employer.

WSIB Claim vs Regular Sick Note in Ontario: Which Do You Need?