How Long Sick Note Valid Ontario | Expiry Rules

Sick notes don't last forever. Here's how long they're valid in Ontario and when you need to get a new one.

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.

How Long Is a Sick Note Valid in Ontario?

There's no universal "expiry date" for sick notes in Ontario, but there are practical limits and employer expectations.

General Guidelines

A sick note covers the dates specified on it, no more, no less

If your note says "off work May 1-5," it's not valid for May 6

Open-ended notes ("until further notice") are valid until a return to work note is issued

Most employers expect updated documentation every 2-4 weeks for extended absences

When You Need a New Note

Get a renewed sick note when:

Your original note's end date has passed but you're still unwell

Your employer requests updated documentation

Your condition has changed (better or worse)

You're applying for EI Sickness Benefits extension

You're transitioning from full absence to modified duties

Employer Policies Vary

| Absence Length | Typical Requirement |
|---|---|
| 1-5 days | Often no note needed (ESA protects first 3 days) |
| 4-7 days | Initial note usually required |
| 1-2 weeks | May need one update |
| 2-4 weeks | Updates every 1-2 weeks |
| 1+ month | Regular updates (biweekly) |

How MedLetter Helps

Need to renew your sick note? MedLetter provides same-day documentation, no need to book another clinic appointment.

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)

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

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

When a Sick Note May Not Be Required

While Ontario law has specific rules, most employers still require documentation. Here's when you need to protect yourself:

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

What Employers Need to Know

Canadian employment law balances employer interests with employee privacy:

Employers can request confirmation of illness but not specific diagnoses

The note should state: dates of absence, that the employee was/is unfit for duties, and expected return date

Employers cannot contact the physician directly without employee consent

Requiring a note for every single-day absence may constitute harassment in some jurisdictions

Cost Considerations for Employers

Walk-in clinic notes cost employees $20-50 and require 2-4 hours away from work

Virtual sick notes reduce time away from work to minutes

Some employers reimburse sick note costs as a best practice

The cost of replacing a sick employee for a day far exceeds the cost of documentation

Urgent Scenarios: When You Need a Note Fast

Life doesn't always happen during regular clinic hours. Many Ontarians find themselves in urgent situations where they need a sick note immediately. Common scenarios include:

The "Tomorrow Morning" Demand: Your boss at a retail job in Toronto demands a note before your shift tomorrow, but it's already 8 PM.

Called in Sick Without One: You called in sick to your Amazon warehouse shift in Brampton (Bramalea, Heart Lake, Springdale, and surrounding areas), and HR just emailed saying you need documentation to return.

Weekend Illness: You fell ill on a Saturday in Kitchener, and all local walk-in clinics are closed or have a 4-hour wait.

Too Sick to Travel: You have a severe flu in Ottawa and cannot physically make it to a clinic without risking your health or infecting others.

In these situations, an online service like MedLetter is invaluable. You can New sick-note requests are temporarily paused while we review our service. We are not accepting new orders at this time. from your phone and receive a valid note quickly.

Ontario-Specific Employer Requirements

Different employers across Ontario have varying requirements for sick notes. Here's a breakdown of what you might expect:

Large Corporations (e.g., Shopify, TD Bank, RBC): Often have strict HR policies requiring documentation for absences longer than 3-5 days. They usually accept virtual notes without issue.

Public Sector (e.g., Ontario Public Service, TTC, OPG): Typically have unionized environments with specific collective agreement rules regarding sick leave and documentation.

Industrial/Warehouse (e.g., Amazon warehouses in Brampton (Bramalea, Heart Lake, Springdale, and surrounding areas)/Mississauga): May require notes for even short absences to manage shift coverage, though ESA rules still apply.

Small Businesses (e.g., local shops in Hamilton or London): Policies can be more informal, but a note provides clear, professional communication.

Comparing Sick Note Options in Ontario

When you need a sick note, you have a few options. Here is a comparison to help you decide:

| Option | Cost | Time Required | Convenience | Best For |
|---|---|---|---|---|
| MedLetter (Online) | $49 | 5-10 mins to apply | High (from home) | Urgent needs, minor illnesses, weekends |
| Walk-in Clinic | $20-$50 | 2-4 hours | Low (travel, waiting) | When you also need a physical exam |
| Family Doctor | $15-$30 | Days/Weeks to book | Medium | Ongoing chronic conditions |
| Emergency Room | $20-50 (note fee) | 4-8+ hours | Very Low | True medical emergencies only |

Note: OHIP does not cover the cost of sick notes, which is why doctors charge a fee for this administrative service.

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).

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.

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.

What if my employer in Windsor refuses my virtual sick note?
Under CPSO telemedicine guidelines, a virtual sick note from a licensed Ontario physician is just as valid as an in-person one. If an employer refuses it, they may be violating employment standards or human rights codes. You can refer them to the CPSO guidelines or contact the Ministry of Labour.

Does WSIB accept online sick notes?
The Workplace Safety and Insurance Board (WSIB) has specific forms (like the Form 8) that usually require a more detailed assessment. While a basic sick note might explain an initial absence, WSIB claims typically require comprehensive documentation from a treating physician.

Can I get a sick note backdated if I was sick yesterday in Toronto?
Physicians generally cannot backdate a sick note to a time before they assessed you. However, they can state the date of the assessment and note that you reported symptoms starting on a previous date. It's always best to request a note as soon as you realize you need one.

How Long Is a Sick Note Valid in Ontario? Expiry & Renewal Guide