Ontario Sick Note Laws 2026: What Employers Can and Cannot Require
Ontario's sick note laws changed significantly in recent years. Here's what employers can and cannot legally require in 2026.
## Ontario Sick Note Laws: The 2026 Landscape
Ontario's Employment Standards Act (ESA) governs when employers can require medical documentation. Understanding these rules protects both employees and employers.
## The 3-Day Rule
Under the ESA, Ontario employees are entitled to:
- **3 unpaid sick days** per calendar year (January 1 - December 31)
- These days are **job-protected** — you cannot be fired for using them
- Employers **cannot** require a medical note for these 3 days under the ESA
However, there's a critical nuance: many employers have **company policies** that go beyond the ESA minimum. If your employment contract or company handbook requires documentation for any absence, that policy may be enforceable.
## When Can an Ontario Employer Require a Sick Note?
An employer can legally require a sick note when:
1. You've used your 3 ESA sick days and take additional sick time
2. Your employment contract specifies documentation requirements
3. Company policy (communicated in writing) requires notes for absences
4. The absence exceeds a specified duration (commonly 3+ consecutive days)
5. There's a pattern of absence that raises legitimate concerns
## What Can a Sick Note Say in Ontario?
A valid Ontario sick note must include:
- The physician's name and registration number
- Date of assessment
- Statement that the patient was assessed
- Dates of recommended absence
- Any functional limitations (if applicable)
A sick note **cannot** be required to include:
- Your specific diagnosis
- Details of your medical condition
- Treatment plans or medications
- Prognosis or recovery timeline
## Your Rights as an Ontario Employee
Under the Ontario Human Rights Code and ESA:
- You have the right to **medical privacy** — no diagnosis disclosure required
- You can obtain documentation from **any licensed physician** (including virtual)
- Your employer **cannot** contact your doctor without your written consent
- You **cannot** be penalized for using your ESA sick days
## Virtual Sick Notes: Fully Legal in Ontario
The CPSO confirms that virtual care is a legitimate form of medical practice. This means:
- A sick note from a virtual consultation is legally valid
- Employers cannot reject a note because it was issued virtually
- The Ontario Human Rights Tribunal has upheld virtual medical documentation
## What If My Employer Rejects My Sick Note?
If your employer rejects a valid sick note:
1. Ask for the rejection reason in writing
2. Review your employment contract and company policy
3. If the note meets legal requirements, the rejection may be unlawful
4. Consider filing a complaint with the Ontario Ministry of Labour
5. Consult an employment lawyer if termination is threatened
## How MedLetter Helps
MedLetter provides sick notes that are:
- Issued by CPSO-registered physicians
- Compliant with all Ontario employment standards
- Verifiable by employers at medletter.ca/verify
- Delivered within 6 hours
**$49 | No clinic visit required | Accepted by all Ontario employers**