Generally no. Alberta's Employment Standards Code provides job-protected personal and family responsibility leave. You cannot be fired for legitimately using this leave. However, excessive absenteeism, dishonesty about illness, or absence during probation may not be protected.
Under Section 53.97 of the Alberta Employment Standards Code, employees are entitled to 5 days of job-protected personal and family responsibility leave per year. During this leave, your employer cannot terminate you, discipline you, or change your employment conditions because you took the leave.
You are protected from termination when:
Situations where calling in sick may lead to termination:
The best protection is documentation. A sick note from a licensed physician proves your absence was legitimate. If you're ever questioned, disciplined, or terminated for a sick day, having a doctor's note is your strongest defense. It costs $49 from MedLetter, far less than fighting a wrongful termination.
If you believe you were terminated for legitimately calling in sick, you may have a wrongful dismissal claim. Contact Alberta Employment Standards or consult an employment lawyer. Having medical documentation (like a MedLetter sick note) significantly strengthens your case.