Your Final Step to
Post-secondary
Complete required credits, upgrade marks, and meet university prerequisites with flexible online learning.
Ministry-Inspected | Ontario Curriculum | Start Anytime
Meet University Entrance Requirements With Confidence
Grade 12 is where your university or college pathway becomes real.
Whether you need to:
Complete a required Grade 12 course
Upgrade your final mark
Improve your admission average
Meet a specific program prerequisite
How Grade 12 works at OES
A Simple Path to Earning Your Final Credits
Step 1
Register for your course
Step 2
Access lessons immediately
Step 3
Submit assignments with teacher feedback
Step 4
Complete your final evaluation online
Write your proctored online exam from anywhere.
Step 5
Receive official Ontario credit
Credits are recorded on your Ontario Student Transcript (OST).
How your final mark in calculated
OES tracks attendance through your weekly online activity, and participation is assessed through reflections. Final exams are proctored online through OES at no extra cost.
Grades 11 & 12
How the final mark is calculated from September 2026
65%
Coursework
25%
Final eval.
10%
Attend.
65% Coursework
25% Mandatory final evaluation
10% Attendance & participation
Post-secondary planner
Which Grade 12 courses do you need for your program?
Most Ontario universities admit students on their top six Grade 12 U or M courses, and almost every program requires Grade 12 English (ENG4U). Colleges usually ask for an OSSD plus program-specific courses, most often Grade 12 English and math. Use the planner below to see what a program usually requires, then confirm on the school’s admissions page.
For students and parents · Reviewed by the OES guidance team, October 2026 · Ontario, 2026–27
Marks go straight to OUAC and OCAS
OES uploads your marks for university and college applications.
Ontario Certified Teachers
From a Ministry-inspected Ontario online high school.
Proctored final exam included
Written online, with free 24/7 tutoring along the way.
Not Sure Where to Start?
Connect with our experts for personalized advice and start your journey today
Grade 12 courses by program, at a glance
| Program | Grade 12 courses usually required |
|---|---|
| UniversityEngineering, computer science, math or physical sciences | ENG4U, MHF4U, MCV4UOften SCH4U and SPH4U · 1 more Grade 12 U/M course of your choice |
| UniversityBusiness or economics | ENG4U, MHF4UPlus MCV4U or MDM4U, depending on the program · 3 more Grade 12 U/M courses of your choice |
| UniversityLife sciences or health sciences | ENG4U, MHF4UPlus MCV4U or MDM4U, depending on the program · Often SBI4U and SCH4U · 1 more Grade 12 U/M course of your choice |
| UniversityArts, social sciences or psychology | ENG4UMDM4U, if math is required · 4 more Grade 12 U/M courses of your choice |
| CollegeBusiness, health or community services | ENG4C, MAP4COften SCH4C |
| CollegeTechnology programs | ENG4C, MCT4COften SPH4C and SCH4C |
Requirements vary by school. Confirm on the program’s admissions page before you enrol. Find university program pages through OUAC and college programs on ontariocolleges.ca.
Most popular grade 12 university prerequisites
These courses are commonly required for university programs. All courses are self-paced and available year-round.
Not sure which course? We’ll help you choose →
The right course. First time.
Tell us where you’re headed. Our guidance team has helped 10,000+ students get there since 2017. We’ll map exactly what you need and send it to your inbox within one business day.
Proven Results for
Grade 12 Students
98%
of our students
find OES teachers to be responsive and supportive
10,000+
students
served since 2017
85%
of our students
earn honour roll marks
In 2026 Our Students Have Been Accepted By




















Hear From Our Students
Thousands of students have successfully earned credits through OES.
Alumni Review from Alina Chowdhury
Watch an alum review by Alina Chowdhury, a former Ontario eSecondary School (OES) student. Alina appreciated the self-paced, flexible learning environment that OES provided
Alumni Review from Bilal Bacchus
Watch Bilal Bacchus, an alum of Ontario eSecondary School, share his experience. He appreciated the regular teacher check-ins and quick response times, which differed from his previous school.
Alumni Review from Mignon Conradie
Watch Mignon Conradie, an alum of Ontario eSecondary School, share her experiences and insights about the school.
What Our Students Say
Real Students, Real Results: see how students earned Ontario Secondary School Diploma (OSSD) credits online with OES, our Ontario Ministry-inspected online high school.
Not sure which course you need?
Our guidance counsellors can help you:
- Choose the right courses
- Understand graduation requirements
- Plan your university pathway
- Upgrade your admission average
Still Have Questions?
Supported by Ontario Certified Teachers
Ontario university admission averages are calculated from six Grade 12 U or M courses, always including ENG4U, plus the specific prerequisites the program requires — commonly MCV4U and SCH4U for engineering, SBI4U and SCH4U for life sciences, MHF4U or MDM4U for business. Requirements differ meaningfully between universities, so check each program on OUAC before finalising course selection.
More than in any other year. From 2026–27, Grade 12 English, math and science marks carry a mandatory written final exam worth 25%, with 65% coursework and 10% attendance and participation — and these are the exact courses (ENG4U, MHF4U, MCV4U, SCH4U, SBI4U) that build the top-six admission average. One exam now moves an admission average in a way it didn’t under the old model. OES courses have always ended in a proctored final, and Fast Track grading exists for students whose results need to land before a deadline.
Yes. A course completed within the past 12 months with at least 50% can be retaken as a repeat: one credit is earned, both attempts show on the Ontario Student Transcript with an “R” beside the lower mark, and Ontario universities generally calculate with the higher grade. Timing is the strategic part — work backwards from the application cycle so the upgraded mark exists when offers are decided. A small number of competitive programs publish their own repeat policies, so check the target program first.
With no fixed end date, a motivated student can complete a course in roughly four weeks, and Fast Track brings summative grading to 1–2 business days with 24-hour teacher responses. Students regularly use this to clear a conditional offer or add a mark before OUAC deadlines. Talk to admissions about the specific date before enrolling so the timeline is realistic from day one.
Three checks: 40 hours of community involvement, the literacy requirement (OSSLT, or the OLC4O course if the test wasn’t passed or sat), and at least two online learning credits for students who started Grade 9 in 2020–21 or later. Grade 12 is the year to close any of these still open — none can be finished after the last course if the diploma is needed for a fall admission.
Conditional offers are typically made on Grade 11 finals and Grade 12 midterm marks, then confirmed against final marks. OES sends an official midterm report card at the halfway point of every course and a final report card at completion, to the student and the home school — so a course taken here feeds the application cycle the same way a day-school course does. Sequence courses so midterms exist when universities are reading files.
Yes — taking an additional Grade 12 U or M course is the standard way to displace a weak mark from the top six, and it avoids any repeat-course considerations entirely because it’s a brand-new credit. Students often add MDM4U, a social science, or a business course alongside their day-school load. Each OES course runs on its own 12-month clock, so it layers onto a full timetable without conflict.


