What Happens If You Don't Have Enough Credits to Graduate in Ontario?

Missing high school credits doesn't mean you have to give up on graduating. If you're a student in Ontario who is short on credits for your Ontario Secondary School Diploma (OSSD), you may be able to complete the courses you still need, take individual online courses, or explore a more flexible learning pathway. The first step is understanding which graduation requirements you've already met and which ones remain.

Whether you're in Grade 11, Grade 12, transferring schools, or returning to high school after time away, there are options worth exploring.

At Aubrey Academy, a Ministry-inspected Ontario private high school, students can take online OSSD credit courses and explore flexible ways to work toward their graduation goals.

How Many Credits Do You Need to Graduate in Ontario?

To earn an Ontario Secondary School Diploma, students generally need 30 high school credits, along with additional graduation requirements. The specific requirements depend on when the student started Grade 9.

Ontario's graduation requirements include:

• 30 credits: A combination of compulsory and optional courses.

• Compulsory credits: Required subjects such as English, mathematics and science, according to the applicable graduation requirements.

• Optional credits: Additional courses that allow students to explore interests and prepare for their future.

• Literacy requirement: Students must meet Ontario's secondary school literacy graduation requirement.

• Community involvement: Students generally need 40 hours of eligible community involvement activities.

• Online learning: Most students must meet the applicable online learning graduation requirement, which includes at least two online credits unless an exemption applies.

• Financial literacy: Students entering Grade 9 in the 2025–26 school year or later must meet the new financial literacy graduation requirement, effective in the 2026–27 school year.

Students who started Grade 9 in September 2023 or earlier generally need 18 compulsory credits and 12 optional credits. Students entering Grade 9 in 2024–25 or later generally need 17 compulsory credits and 13 optional credits.

Because requirements can vary by student cohort and individual circumstances, review the Ontario government's official OSSD graduation requirements before deciding which courses to take.

What If You're Missing Credits in Grade 12?

Discovering that you're short on credits in Grade 12 can feel overwhelming, especially if you were planning to graduate at the end of the school year.

You might be missing a required English or mathematics course, have an unsuccessful course on your transcript, or need an additional elective to reach the total number of credits required.

The good news is that you don't necessarily have to repeat an entire year of high school just because you're missing a few credits.

Your next steps will depend on your transcript, the courses you still need, and your school's available options.

For example, you may be able to:

• Complete a course you previously did not pass.

• Take a missing compulsory course.

• Earn an additional elective credit.

• Complete a prerequisite required for a college or university program.

• Explore an online course that fits your schedule.

Before making a decision, speak with your guidance counsellor or school administrator. Ask for a review of your transcript and a clear list of the credits and other graduation requirements you still need to complete.

If you're considering a different school, make sure the new school reviews your academic records before you register for courses.

Can You Earn Missing High School Credits Online?

Yes. Ontario students can take eligible OSSD credit courses through a Ministry-inspected private high school.

Online learning may be particularly helpful for students who need more flexibility than their current school schedule allows.

For example, a student might need one additional course to graduate, want to complete a prerequisite for a college or university program, or need to balance school with competitive sports, performing arts, employment or family responsibilities.

Rather than changing their entire education plan, some students may be able to take an individual online course to address a specific academic need.

At Aubrey Academy, students can:

• Take individual OSSD credit courses online.

• Access support from Ontario Certified Teachers.

• Study through a flexible, asynchronous learning model.

• Begin courses throughout the year.

• Explore options for completing missing credits or upgrading marks.

Course selection should always be based on the student's official transcript, remaining graduation requirements and future academic goals.

Need help figuring out which credits are missing? Explore Aubrey Academy's online OSSD courses to see the available courses, or contact the team to discuss your situation.

What If You've Changed Schools or Taken Time Away From High School?

Students don't always follow a straight path from Grade 9 to graduation.

You might have moved to another province, transferred between schools, experienced personal or family circumstances that interrupted your education, or returned to school after several years away.

If this sounds familiar, don't assume you have to start from the beginning.

Your previous academic records can help determine which credits you've already earned and which requirements remain outstanding.

Here are some practical steps to take:

1. Request Your Ontario Student Transcript

Your Ontario Student Transcript (OST) records important information about your secondary school credit history.

If you attended school outside Ontario, gather your available report cards, transcripts and other academic records as well.

2. Have Your Previous Credits Reviewed

A school administrator can review your records to determine which credits can be applied toward your OSSD requirements.

If you studied outside Ontario or have substantial prior learning, ask whether an equivalency assessment or another applicable recognition process may be available.

3. Identify Your Remaining Requirements

Once your records have been reviewed, establish which compulsory courses, optional credits and non-credit graduation requirements you still need to complete.

This step helps you avoid taking courses you don't need while overlooking a requirement that could delay graduation.

4. Create a Realistic Graduation Plan

Consider your remaining courses, preferred learning environment, available time and future goals.

If you intend to apply to college or university, check the admission requirements and deadlines for your chosen programs as well.

A clear plan can help you decide which courses to take first and how to organize your studies.

Can You Catch Up on Credits and Graduate Faster?

Depending on how many credits you need and which courses are available, you may be able to make progress toward graduation through a more flexible course schedule.

However, there is no single timeline that works for every student.

Your graduation date will depend on your existing credits, compulsory course requirements, course prerequisites, the time you need to complete each course, and any additional graduation requirements that remain outstanding.

Some students may need only one or two courses. Others may need a more extensive plan.

Online learning can offer greater scheduling flexibility, but students should confirm course timelines, assessment requirements and any available accelerated options before enrolling.

If graduating sooner is important to you, begin by gathering your transcript and identifying the exact requirements you still need to meet.

What If You're an Adult Who Never Graduated From High School?

It's not too late to explore completing your high school education.

Adults who left high school without earning their OSSD may have several options, depending on their age, academic history and circumstances.

These can include taking individual high school credit courses, exploring adult education programs, or asking about Prior Learning Assessment and Recognition (PLAR) for mature students where applicable.

PLAR may allow eligible mature students to receive recognition for certain prior learning, training and experience. The process and number of credits that can be granted depend on the applicable rules and an individual assessment.

The Ontario government provides information about adult learning and earning an Ontario high school diploma.

If you need a flexible way to continue your education, online courses may also be worth considering.

How Aubrey Academy Can Help You Explore Your Options

Every student's academic history is different. The best starting point is understanding what you've already accomplished and what you need to do next.

Aubrey Academy is a Ministry-inspected Ontario private high school (BSID #665140) offering flexible online OSSD credit courses for students in Grades 9–12.

Students can explore individual courses, credit upgrading and flexible learning options while receiving support from Ontario Certified Teachers.

Whether you're missing a single credit, working toward a university prerequisite, or trying to create a plan to finish high school, reviewing your academic records is an important first step.

Aubrey Academy can help you explore available courses and discuss possible next steps based on your academic goals.

Ready to find out which courses you need?

Visit Aubrey Academy's online high school website to explore course options, or contact the team at info@aubreyacademy.ca or call/text (416) 998-3354.

Frequently Asked Questions

Can I still graduate if I'm missing credits in Grade 12?

Yes, it may still be possible. You must complete the applicable OSSD graduation requirements, but you may be able to take the remaining courses through your current school or another eligible education provider.

Do I have to repeat Grade 12 if I don't have enough credits?

Not necessarily. Your options depend on the courses and credits you already have. You may only need to complete specific outstanding courses or requirements rather than repeat an entire year.

Can I take just one missing high school credit online?

Yes. Eligible students can take individual online OSSD courses through an appropriate Ontario school. Confirm that the course meets your specific graduation or post-secondary requirements before registering.

Can I transfer my credits to Aubrey Academy?

Previously earned credits can be reviewed as part of the process of determining a student's remaining OSSD requirements. Contact Aubrey Academy to discuss your academic records and course options.

What if I have been out of school for several years?

You can still explore ways to continue your education. Depending on your circumstances, options may include individual credit courses, adult education or applicable mature-student assessment processes.

Your Path to Graduation Can Start With One Step

Being short on high school credits can feel discouraging, but it doesn't mean you have run out of options.

Start by reviewing your transcript, confirming the graduation requirements that apply to you, and identifying the courses or other requirements you still need to complete.

With a clear plan and the right learning environment, you can take practical steps toward your academic goals.

At Aubrey Academy, we believe students should have flexible options when their education doesn't follow a traditional path.

Contact Aubrey Academy today to explore your online OSSD course options and take the next step toward graduation.