Quick Summary — Upgrading High School Marks for College in Ontario

• Academic upgrading lets students retake completed high school courses to earn higher grades and meet college admission requirements.
• It’s best to begin upgrading several months before OCAS deadlines to allow time for coursework, exams, and transcript updates.
• Courses at Ontario eSecondary School (OES) are 100% online, Ministry-inspected, and can be completed in as little as four weeks, with 24/7 tutoring and flexible pacing.
• OES handles transcript updates, sending upgraded marks directly to OCAS or your home school for official records.

 

Many students in Ontario discover that a few extra percentage points can change everything—admission into a preferred program or scholarship eligibility. For those aiming to strengthen their applications, upgrading high school marks for college is a practical and effective way to improve academic standing. Through accredited online courses, students can raise previous grades, complete missing prerequisites, or fast-track credits to stay on track for college admission.

At Ontario eSecondary School (OES), a Ministry-inspected online high school, students can earn OSSD credits entirely online at their own pace. Courses are available year-round, giving learners full control over their schedule and pace.

If you’re ready to strengthen your application and move closer to your dream program, keep reading to learn how upgrading works, when to do it, and how to get started.

What Is Academic Upgrading and When Should You Choose It?

Academic upgrading refers to repeating a completed high school course to earn a higher grade. It differs from credit recovery, which is for students who didn’t pass a course. Repeating a course is intended for those who earned a passing mark but want to upgrade their average.

When a student repeats a course for this purpose, both attempts appear on their Ontario Student Transcript, but only the higher mark is counted toward their OSSD and college applications.

You should consider upgrading if:

• Your grades fall slightly below a college program’s cutoff or competitive average.
• You’re missing required courses or prerequisites for admission.
• You want to raise your overall average to qualify for scholarships or financial aid.
• You’re an adult learner returning to education and need specific courses for career advancement.
• You’re an international student using Ontario credits to meet local post-secondary admission standards.

OES offers flexible online courses for colleges in Ontario that students can complete at their own pace, ideal for anyone balancing work, school, or family responsibilities.

How Upgrading High School Marks for College Works in Ontario

Upgrading can be done through your day school, a summer program, or an accredited Ontario online high school like OES. The advantage of online learning is flexibility—students can begin anytime and finish as quickly as four weeks. Courses are taught by certified Ontario teachers and follow the official curriculum, ensuring that upgraded credits count toward the Ontario Secondary School Diploma (OSSD) and are accepted by all Ontario colleges.

Once a course is completed, OES sends your final report card to your home school or directly to OCAS so your updated grade appears on your Ontario Student Transcript (OST). If you’re unsure how to upgrade high school marks for college in Ontario, OES’s guidance team can help review your transcript and identify which courses to improve before OUAC or OCAS deadlines. You can discuss your options by booking a free 15-Minute Academic Guidance Meeting.

Steps to Upgrade Your High School Marks for College Admission with Ontario eSecondary School

NOTE: If you’re planning to apply to college in Ontario, it’s best to start your academic upgrading several months before application deadlines—ideally by early fall for winter admission or by spring for fall programs. This gives you enough time to complete your course, write your exam, and ensure your updated marks are sent to OCAS.

 

1. Review your transcript and check program prerequisites. Compare your current grades to the admission requirements listed on the Ontario College Application Service (OCAS) website to identify which courses or averages need improvement.
2. Enroll in your course. Register through the OES Courses page to begin upgrading immediately—no waiting for a term start date.
3. Complete coursework at your own pace. Many OES courses can be completed in as little as four weeks, with 100% online lessons, 24/7 tutoring support, and quick, personalized feedback from Ontario Certified Teachers.
4. Schedule your proctored exam early. Tests and exams are flexible and can be written online or in person.
5. Submit upgraded marks. Once your course is complete, OES sends your updated grades directly to your home school or OCAS for official record.

Throughout the process, OES provides responsive academic support and professional admissions counselling to help you align your upgraded marks with college application timelines.

Tips to Improve Your Grades and Stay on Track During Your College Upgrade

Improving grades requires both strategy and discipline. Set a specific target grade and map out a realistic timeline—especially if you’re upgrading close to application deadlines. Create a weekly schedule that prioritizes consistent study time and uses available resources like OES’s tutoring services.

Break larger assignments into smaller, manageable tasks, and seek help early if you don’t understand a concept. Take advantage of teacher feedback and stay proactive about test preparation. Online learning offers flexibility, but structure is key; treat your course as seriously as an in-person class.

With self-paced programs like OES, high school students, adult learners, and international students can finish sooner if they stay focused, which is ideal for those needing to upgrade high school courses for college admission quickly.

Ready to Upgrade for College? Book a 15-Minute Academic Guidance Meeting with OES

Upgrading doesn’t have to feel overwhelming. With the right plan and the right online school, it becomes a clear, achievable step toward your next goal.

If you’re ready to take that step, schedule a free 15-minute Academic Guidance Meeting to discuss your goals with an OES advisor. We’ll help you identify which courses to upgrade and how to align them with your chosen college program.

To learn more, visit our FAQ page for details on upgrading, or Contact OES directly. Your next opportunity begins with one upgraded course, and OES is ready to help you make it happen!