The one thing that decides everything: in-province status
Most Canadian medical schools reserve the large majority of their seats for residents of their own province. Your province of residence, far more than your GPA, determines how many realistic options you have and how competitive each one is.
Before you plan anything else, work out which schools treat you as in-province, which accept out-of-province applicants at all, and how many out-of-province seats each of those actually offers. That list is your real application list. Everything after this point is built around it.
Roughly 18 months out: prerequisites and the MCAT decision
Prerequisite courses differ by school, and some schools have none. Check the prerequisite table for each school on your list early enough that you can still fit a missing course into a term.
Decide whether you are writing the MCAT, and when. Not every Canadian school requires it, and the schools that do weight it very differently. Some use hard section minimums, some emphasize CARS heavily, and some use it only as a threshold. Write it at a point in the year when you can absorb a rewrite without derailing the cycle.
Spring and summer: CASPer, references, and your experiences record
Most Canadian schools now require a situational-judgement test, usually CASPer, and it has its own registration deadlines that are separate from the application itself. Missing that registration is one of the most common avoidable ways to lose a cycle.
Ask for references early. Referees write better letters with six weeks of notice than with six days, and Canadian applications generally require you to name referees inside the portal rather than collect letters yourself.
This is also when the writing starts. Your experiences record, the autobiographical sketch on OMSAS or its equivalent elsewhere, takes far longer than people expect, because the hard part is not listing what you did but explaining what it demonstrates.
Late summer to early autumn: submission
OMSAS handles applications to the Ontario schools through one portal with one early-October deadline. Schools outside Ontario each run their own portal with their own deadline, most of them in the autumn.
Submit with days to spare, not hours. Portals slow down under load near deadlines, and verification steps, including transcripts, referee confirmations, and test-score releases, can take longer than you assume.
Winter: interviews
Interview invitations typically arrive between roughly January and March. Most Canadian schools use a multiple mini interview (MMI), some use panels, and several use a hybrid. Format matters: the preparation for a seven-minute MMI station is not the preparation for a forty-minute panel.
The gap between an invitation and the interview date is often short. Applicants who wait for the invitation before starting to prepare are usually preparing in a hurry.
Spring: offers, waitlists, and the reapplicant decision
Offers generally come out in the spring, with waitlist movement continuing after that. If the cycle does not go your way, the useful question is not what went wrong in general but which specific part of the file was weakest: the numbers, the experiences record, the writing, or the interview.
That diagnosis is worth doing before you change anything, because reapplicants who rewrite the strong part of their file and leave the weak part alone tend to get the same result twice.
A short checklist
- Confirm which schools you are eligible for as in-province and out-of-province
- Check prerequisites school by school, not in general
- Decide on MCAT timing with room for a rewrite
- Register for CASPer on its own deadline
- Ask referees at least six weeks ahead
- Draft the experiences record before the portal opens
- Submit early, not on the deadline
- Start interview preparation before invitations arrive