The OUAC application for September 2027 entry is open. Students at an Ontario high school apply through it once, by January 15, 2027, and that single application reaches every Ontario university on their list.
The OUAC does not publish a fixed opening date each year. The application goes live in the early autumn of Grade 12, and your school issues the access code you need to start, so if classmates have begun and you have not, ask your guidance office rather than the OUAC.
The 2027 application year
Two kinds of date run through the year, and mixing them up is where students lose time. Some need you to act. Most happen to your file whether you do anything or not, including every date on which your marks travel from your school to the universities.
- You
- Your school
- Universities
Autumn
November 19, 2026
Your schoolYour school reports the Grade 12 marks it has so far
Midterm or final marks for 4U and 4M courses.
November 26, 2026
UniversitiesUniversities receive those marks
Applying
January 15, 2027
YouApplication deadline
Apply by this date for equal consideration at every Ontario university.
January 21, 2027
UniversitiesUniversities receive your application and grades
Marks and offers
February 11, 2027
Your schoolYour school reports final first-semester marks
The last report most offers are decided on.
February 18, 2027
UniversitiesUniversities receive them
April 22, 2027
Your schoolYour school reports later and interim marks
May 3, 2027
UniversitiesUniversities receive them
May 28, 2027
UniversitiesThe latest you can expect an answer
An offer, a refusal or a deferral, if you applied by January 15.
June 1, 2027
YouThe earliest you can be required to accept an offer
No Ontario university can ask for a decision or a deposit before this date.
If you need a better mark
A retake only counts if the new mark reaches the university before they decide, so the date that governs you is the one on which your school reports it, not the application deadline.
February 11 is the one to aim for. It carries final first-semester marks, and most offers are made between February and May. Miss it and the next report is April 22, by which point competitive programs have often filled.
If you miss January 15
The OUAC keeps accepting applications after the deadline and still sends them to universities. What you give up is equal consideration, so apply as soon as you can. From June 3, 2027 the OUAC's Admission Information Service lists the Ontario programs still holding spaces in first year.
Where these dates come from
The OUAC publishes two schedules: a public one for applicants, and one for school guidance offices that carries the grade-reporting deadlines above. Both are revised each year, so confirm anything you are relying on at the Ontario Universities' Application Centre. Individual universities also set earlier deadlines of their own for competitive programs, portfolios and major scholarships, so check each program's page.
Dates confirmed against the OUAC's published 2026–2027 schedule in October 2026. We keep the same schedule on our important dates page, alongside the deadlines for Ontario colleges, the United Kingdom and the United States, and our guidance team works through all of it with students every year.