Study Permit Extension

If you have completed your program of study, you are allowed to work while awaiting a decision on your application, and then you are allowed to work assuming that you meet the following criteria:

When to apply – plan to submit your extension at least 30 days before your permit expires.
If you plan to finish your studies earlier than expected, it is essential to note that your study permit will expire on the date marked on the valid permit or 90 days after you complete your studies, whichever occurs first.
You can stay in Canada if you apply before your permit expires. The conditions remain the same while the decision on your extension is made.

If you plan to travel outside of Canada and your permit will expire while traveling, you should apply to extend your study permit.
Ensure your passport is valid and not expired – you can't extend your permit past your passport's expiration date.
If you plan to finish your studies later than expected, you must apply for an extension at least 30 days before the original expiration date.