Sick in Your First Week at a New Job? Take the Practical Steps First
Illness can happen at an awkward time. If you need to call in sick during your first week, the priority is to follow the employer's reporting procedure and keep the communication clear. Do not assume that a medical note automatically resolves an attendance concern—or that you must disclose private medical details.
What to Do
1. Follow the call-in procedure
Check your onboarding email, employee handbook, schedule app, or ask your supervisor which channel to use. Notify work as soon as reasonably possible and keep a copy of the message.
2. Ask about documentation instead of guessing
Policies differ by employer, province, collective agreement, and length of absence. Ask how and when documentation should be submitted if it is requested. This avoids relying on a generic internet timeline.
3. Protect your privacy
You can describe your work status without volunteering a diagnosis. A medical document should normally focus on the functional issue and medically supported absence period, not unnecessary clinical detail.
4. Get appropriate care
For a short acute illness, a documentation request may be appropriate after clinical review. For severe symptoms, an ongoing condition, mental-health documentation, injury at work, or a complex accommodation request, seek the appropriate in-person, emergency, occupational, or ongoing-care route.
Does a Sick Note Guarantee My New Job Is Safe?
No. A note can support truthful communication about a medically supported short-term absence when clinically appropriate. It does not guarantee an employment, probation, accommodation, or leave outcome. Review the employer's policy and the employment standards that apply where you work.
Official Starting Point for Federal Workplaces
If you work in a federally regulated workplace, use the current Government of Canada federal labour standards guidance. Most employees are covered by provincial or territorial rules instead, so check the official guidance for the jurisdiction where you work alongside your employer's written policy.
Frequently Asked Questions
Should I call or text my manager?
Use the channel your employer requires. If no method is specified, ask your manager or the scheduling contact and keep a record of your notification.
Can I ask for a sick note for one missed shift?
You can request documentation when clinically appropriate, but whether your employer needs it depends on the workplace policy and applicable rules.
What should a short-term note say?
It should be limited to the assessment and medically supported absence information needed for its purpose. A clinician should not promise employment outcomes or disclose unnecessary diagnostic detail.
Related Resources
- [Sick During Probation in Alberta](/blog/sick-note-probation-alberta-after-calling-in-sick)
- [Doctor Note for Work](/doctor-note-for-work)
- [National Sick Note Guide](/sick-note-canada)
- [Sick Leave Rules by Province](/blog/canadian-sick-leave-laws-2026-every-province)