Is Grade 12 English Mandatory to Graduate High School in Ontario?

Quick Answer: Is Grade 12 English Mandatory?
Yes. To earn the Ontario Secondary School Diploma (OSSD), students must complete Grade 12 English as a compulsory credit set by the Ministry of Education. Without it, students cannot graduate high school in Ontario.
For students planning post-secondary education, Grade 12 English is also commonly required for university admission, which is why this credit carries extra weight beyond graduation alone.
For many students, Grade 12 English becomes a point of confusion late in the process, often when graduation timelines or next steps start to feel real. Even when a future program seems unrelated to English, this course plays a central role in completing high school and keeping post-secondary options open.
Understanding how Grade 12 English fits into Ontario’s graduation requirements helps you plan your courses properly, avoid delays, and move forward with clarity. Ontario eSecondary School supports students who need a flexible, accredited way to complete Grade 12 English online, whether you’re finishing high school, upgrading a mark, or returning as an adult learner.
Why Is Grade 12 English Mandatory for High School Graduation?
Grade 12 English is required because it confirms that students can read, write, and communicate at the level expected of a high school graduate in Ontario. These skills apply across all subjects and are considered essential for completing coursework, understanding instructions, and preparing for life after high school.
Because of this, Grade 12 English is built into the province’s compulsory credit framework and applies to all students working toward the Ontario Secondary School Diploma, regardless of their future plans.
How Grade 12 English Affects University Admission And The Top 6
While Grade 12 English is required to graduate high school in Ontario, it also plays a key role in university admissions. When applying to university, Ontario institutions assess a student’s “Top 6” Grade 12 U or M courses. This always includes ENG4U (Grade 12 English), along with program-specific courses such as MHF4U (Advanced Functions), MCV4U (Calculus and Vectors), MDM4U (Data Management), SCH4U (Chemistry), and SBI4U (Biology), depending on the degree being pursued.
English is included in the Top 6 because it allows universities to evaluate skills that apply across all programs. Students are expected to read complex material, write clearly, and communicate ideas effectively in nearly every course, whether through lab reports, research papers, case studies, or written exams.
Grade 12 English builds on the literacy skills students are required to demonstrate earlier in high school, but applies them at a more advanced academic level. For this reason, universities rely on ENG4U as a key indicator of readiness for post-secondary coursework, making it a consistent admission requirement across Ontario institutions.
What To Do If You Haven’t Completed Or Passed Grade 12 English

Since Grade 12 English is mandatory for high school graduation, not completing the course or earning a strong enough mark means you need a clear plan, not that your options are closed. Completing or upgrading the credit through a Ministry-inspected Ontario high school is a standard and widely accepted path.
For students planning post-secondary education, universities consider the most up-to-date marks available at each stage of the admissions cycle. Many students apply while Grade 12 English is still in progress or before an upgraded mark is available. When a student completes or upgrades ENG4U through an accredited institution, the new grade replaces the previous one and is factored into admissions decisions, including conditional offers and later rounds of review.
This pathway also applies to adult learners returning to school. Completing Grade 12 English later can restore eligibility for post-secondary programs without requiring students to restart their entire diploma.
Timing and planning matter. Knowing when to enroll, how updated transcripts are submitted, and how revised marks are shared can help you avoid delays and stay aligned with your intended graduation or intake timeline.
Taking Grade 12 English Online Through An Ontario-Accredited High School
Credits earned through an Ontario online high school are treated the same as those earned in traditional classrooms and are fully recognized for graduation and post-secondary pathways.
At Ontario eSecondary School, students complete ENG4U in a fully online, self-paced format designed to fit real schedules. Some students are able to complete the course in as little as four weeks, while others move more gradually depending on workload, learning style, or personal commitments. There are no fixed semesters, allowing students to progress at a pace that works for them without unnecessary pressure.
Support is built into the learning experience. Students receive ongoing feedback from certified Ontario teachers, access to 24/7 online tutoring, and consistent academic guidance throughout the course. Accommodations are respected and supported, helping students feel guided and confident rather than left to navigate the course independently.
If you’re curious what taking ENG4U online actually looks like in practice, you can read ENG4U at OES: What Grade 12 English Is Like in an Online Classroom for a closer look at assignments, pacing, and teacher interaction.
Students exploring next steps can browse available courses on the courses page or learn more about planning support through admissions counselling and additional services.
Book A 15-Minute Academic Guidance Meeting And Register For Online Grade 12 English Courses
If you’re still uncertain about your next step, a short conversation can bring clarity. Ontario eSecondary School offers a free 15 Minute Academic Guidance Meeting to help students understand requirements, timelines, and the best course plan for their goals. With personalized support and accredited online courses, OES helps students move forward with confidence—whether that means completing Grade 12 English, upgrading marks, or preparing to graduate high school on schedule.
