Ontario Grade 12: Your College and University Application Checklist
Applying to college or university in Ontario? This Grade 12 checklist covers admission requirements, application deadlines, grades, applicant portals, financial planning, and the steps students should take before starting post-secondary education.
Applying to college or university in Ontario while working toward your Ontario Secondary School Diploma (OSSD) can feel overwhelming, especially when you are balancing classes, assignments, tests, and upcoming deadlines. The good news is that with a clear plan, you can stay organized, complete your applications, and keep your post-secondary goals on track.
If you are a Grade 12 student planning to start college or university in fall 2027, now is the time to research your options, review admission requirements, and make sure you know what needs to be done.
Here is your step-by-step checklist for navigating the Ontario college and university application process.
1. Decide Which Programs Interest You
Before submitting applications, take time to explore the programs that match your interests, strengths, and future career goals.
Ask yourself:
What subjects do I enjoy most?
What career paths am I considering?
Do I need a university degree, a college diploma, or a specific professional qualification?
Would a co-op program, apprenticeship pathway, or hands-on learning environment suit me?
Do I want to study close to home or somewhere new?
You do not need to have your entire future figured out before applying. However, identifying a few potential career paths can help you narrow your choices and select programs worth exploring.
Action step: Create a shortlist of programs at different institutions. Compare admission requirements, program length, tuition, location, and career opportunities before deciding where to apply.
2. Check the Admission Requirements for Every Program
One of the most important steps is confirming that you are taking the right courses for your chosen programs.
Admission requirements vary by institution and program. Some programs require specific Grade 12 courses, while others may consider additional factors such as portfolios, interviews, auditions, or supplementary applications.
For university programs, check whether the program requires particular University Preparation (4U) or University/College Preparation (4M) courses.
For college programs, review the required Ontario high school courses and any additional admission criteria.
Do not assume that meeting the general admission requirements for an institution means you qualify for every program it offers.
Action step: Visit each program's official admissions page and record its required courses, minimum grades, supplementary requirements, and deadlines.
3. Know Your Application Deadlines
Application deadlines are important, but the dates can differ depending on where you apply and which program you choose.
For students applying for fall 2027 entry, two important dates to keep in mind are:
January 15, 2027: The deadline for Ontario high school students in Group A to submit completed undergraduate applications through the Ontario Universities' Application Centre (OUAC).
February 1, 2027: The equal-consideration deadline for applications to highly competitive Ontario college programs through Ontario Colleges.
The February 1 college deadline means applications received and paid for by that date receive equal consideration for highly competitive programs. Students are encouraged to apply earlier where possible.
These dates do not apply universally to every applicant or program. Some programs have different requirements or deadlines, so always confirm the dates that apply to your situation.
Action step: Add every application deadline, supplementary application deadline, portfolio deadline, and document deadline to your calendar. Set reminders well in advance.
4. Complete Your Applications Carefully
Once you have chosen your programs, set aside time to complete your applications accurately.
For Ontario universities, eligible applicants generally apply through OUAC. For Ontario colleges, applications are submitted through Ontario Colleges.
Before submitting, double-check:
Your legal name and contact information.
Your school and academic history.
Your program selections and campus choices.
Your personal information and application details.
Any required supplementary forms or supporting documents.
Application fees and payment confirmation.
Review your selections before submitting. Choosing the wrong program or campus can create unnecessary complications later.
Keep a record of your submitted applications, confirmation emails, and payment receipts.
5. Understand How Your Grades Affect Admission
Your Grade 12 marks can play an important role in admission decisions, particularly for programs with competitive entry requirements.
Universities may consider completed Grade 11 and Grade 12 courses, along with available midterm and final marks from Grade 12 courses. College programs have their own admission and grade-assessment procedures.
If your current marks are lower than you hoped, do not automatically assume that your post-secondary plans are out of reach.
Instead, focus on what you can do now:
Identify the courses that need the most attention.
Speak with your teachers about areas where you can improve.
Develop a realistic study schedule.
Complete outstanding assignments and prepare for upcoming assessments.
Confirm whether you are meeting the prerequisites for your chosen programs.
Remember that admission averages and requirements differ between programs. Research the requirements for your specific choices rather than relying on a general average you have heard from someone else.
6. Monitor Your Application Status
Submitting your application is an important milestone, but it is not necessarily the final step.
After applying, check your email regularly and monitor the applicant portals for your chosen institutions.
You may need to:
Activate an applicant account.
Review your application information.
Submit supplementary applications or documents.
Respond to requests for additional information.
Check whether your academic information has been received.
Review admission decisions and any conditions attached to an offer.
Keep your login information secure and check your accounts regularly so you do not miss important updates.
Action step: Create a simple tracking spreadsheet with columns for the institution, program, application date, deadline, portal details, outstanding requirements, and application status.
7. Plan for More Than Just Tuition
Choosing a college or university also means considering the practical and financial side of post-secondary education.
Research the costs associated with each option, including:
Tuition and compulsory fees.
Textbooks, supplies, and equipment.
Transportation or parking.
Residence or off-campus housing.
Food and personal expenses.
Explore scholarships, bursaries, and financial assistance early. Some awards require separate applications, essays, references, or supporting documents, and their deadlines may differ from admission deadlines.
If you plan to live away from home, investigate residence application dates and costs as well.
Planning ahead can help you compare your options realistically and avoid unexpected expenses.
8. Have a Backup Plan
It is perfectly reasonable to have a first-choice program, but it is also wise to explore alternatives.
Consider applying to a combination of programs that interest you and offer different admission pathways. You might investigate related programs, different campuses, or alternative routes into your intended career.
A backup plan does not mean giving up on your goal. It means giving yourself more options.
If you receive an offer, read it carefully. Check the response deadline and any academic conditions you must meet before enrolling.
For Ontario university applicants, June 1, 2027, is the earliest date that universities may require current Ontario high school students to respond to an offer and make a financial commitment. Individual offer details still matter, so follow the instructions provided by your institution.
Your Ontario Grade 12 Application Checklist
Before moving on to your next task, use this checklist to see where you stand.
Research programs and institutions that interest me.
Confirm the admission requirements for every program.
Check prerequisites against my current and planned courses.
Record application and supplementary deadlines.
Complete and submit my applications.
Save confirmation emails and payment receipts.
Activate and check my applicant portals.
Monitor my grades and work on areas that need improvement.
Research scholarships and financial assistance.
Plan for tuition, transportation, housing, and other expenses.
Review admission offers, conditions, and response deadlines.
Keep a backup option in mind.
You do not have to complete everything in one day. Work through the list one step at a time and prioritize the deadlines that are coming up first.
How Aubrey Academy Can Support Your Academic Goals
Preparing for college or university begins with understanding your academic requirements and staying on track toward graduation.
At Aubrey Academy, students can access flexible online high school learning while working toward their Ontario Secondary School Diploma. Whether you are completing required courses, planning your academic pathway, or working toward your future goals, having a clear plan can make a difference.
If you need support with your Ontario high school education, visit Aubrey Academy to learn more about our online learning options.
Start Planning Your Next Step Today
Your post-secondary journey does not need to feel overwhelming. Start by researching programs, confirming your admission requirements, organizing your deadlines, and keeping up with your current courses.
The earlier you understand what is expected, the more time you have to address questions and complete outstanding requirements.
Your next step: Choose one program that interests you, review its admission requirements, and add its important deadlines to your calendar.
A little planning today can help you move toward graduation and the next chapter of your education with greater confidence.
Official Resources
For current application information and deadlines, consult these official resources:
OUAC vs. OCAS: Applying in Ontario
Applying to university or college in Ontario? Learn the difference between OUAC and OCAS, whether you can apply through both, and what to have ready before you start your fall 2027 application.
If you're planning to attend a college or university in Ontario, you'll apply through a centralized application service. Students applying to Ontario universities use the Ontario Universities' Application Centre (OUAC), while students applying to Ontario colleges use the Ontario Colleges Application Service (OCAS). Some students apply through both, depending on their post-secondary plans.
For Ontario students beginning their applications for fall 2027, now is the time to start researching programs, requirements and application timelines.
OUAC vs. OCAS: What's the Difference?
The two services are used for different types of Ontario post-secondary applications.
OUAC
The Ontario Universities' Application Centre (OUAC) is the application service used by students applying to undergraduate programs at Ontario universities. Students use OUAC to submit their university program choices and manage their Ontario university application.
OCAS
The Ontario Colleges Application Service (OCAS) is used by students applying to Ontario colleges. Students can use OCAS to research college programs and submit applications to the Ontario colleges they're interested in.
The application service you use depends on the program you're applying to. If you're considering both college and university, you may use both OUAC and OCAS.
Can You Apply Through Both?
Yes. Students can apply to both Ontario colleges and universities if they are considering programs in both systems.
For example, a student might apply to a university business program through OUAC and a college business program through OCAS. The applications are separate, so it's important to keep track of the requirements and deadlines for each.
When Do Ontario University Applications Open?
The OUAC 2027 undergraduate application is now available for students applying to Ontario universities for fall 2027 admission. For Group A applicants, the completed application deadline is January 15, 2027.
Some universities and programs have additional requirements or different deadlines, so students should always check the specific university program they are applying to.
When Should You Start a College Application?
Ontario college applications for the following academic year are also part of the fall application cycle.
Rather than waiting until a deadline approaches, students can use this time to research programs, compare admission requirements and prepare the information they'll need for their application.
Aubrey Academy encourages students to begin the application process early and provides support with both OUAC and Ontario Colleges applications.
What Do You Need Before Applying?
Having your information ready can make the application process much easier.
Students should have:
Their Ontario Education Number (OEN), if available
A list of programs they're interested in
Information about all high schools they've attended
Their course and grade information
A valid email address
Any required supporting documents
Students should also review the admission requirements for their specific programs before submitting their choices.
Tips for a Stronger Post-Secondary Application
Once you've decided where you want to apply, taking a little time to prepare can make the application process easier. Whether you're applying through OUAC for Ontario universities or OCAS for Ontario colleges, make sure you understand the requirements for each program before submitting your application.
A few things to keep in mind:
Research your programs: Review admission requirements, prerequisites and any additional application requirements.
Keep your information organized: Have your course history, grades and school information ready before starting your application.
Check for supplementary applications: Some university programs may require additional information, such as written responses, portfolios, interviews or other supplemental materials.
Watch your deadlines: Application deadlines can vary by institution and program, so don't assume they are all the same.
Ask for help when you need it: Academic advising can help you understand your course pathway, application options and post-secondary requirements.
Aubrey Academy offers academic advising and post-secondary application support to help students navigate their OUAC and OCAS applications and prepare for their next step.
What If You've Attended More Than One High School?
This is important for students who have transferred schools or completed courses at more than one school.
All high schools attended should be included in the application.
For Aubrey Academy students, Aubrey should be added to their education history along with any other secondary schools they've attended. Aubrey's Guidance Office submits students' Aubrey Academy grades directly to OUAC when they become available.
For Ontario college applications, students should also include Aubrey Academy in their high school education history.
Does Aubrey Academy Help With OUAC and OCAS?
Yes. Aubrey Academy provides academic advising and support with OUAC and OCAS applications, course selection and post-secondary planning.
This can be especially helpful for students completing courses online, attending more than one high school, or trying to make sure their OSSD courses align with their post-secondary plans.
What Happens After You Apply?
Submitting an application isn't the final step.
Students should continue checking their application account and email for updates, requests and offers.
For OUAC applicants, students can log back into their account to review their application information and respond to offers.
For college applicants, students should similarly monitor their Ontario Colleges account and communications from the colleges they've selected.
Frequently Asked Questions
Is OUAC for university or college?
OUAC is used for undergraduate applications to Ontario universities.
Is OCAS for university or college?
OCAS is used for applications to Ontario colleges. Aubrey Academy provides instructions for students applying through Ontario Colleges.
Can I apply to both?
Yes. Students considering both college and university can submit applications through both services.
Do I need an OSSD to apply?
Admission requirements depend on the program and applicant. Students should check the requirements for each program they're considering.
Planning Your Next Step
College and university applications can feel complicated when you're trying to keep track of different programs, requirements and deadlines. Understanding the difference between OUAC and OCAS is a simple first step.
Whether you're planning for university, exploring college programs, or considering both, having your OSSD courses and application information organized early can make the process easier.
Aubrey Academy supports Ontario students with OSSD planning, course selection and OUAC and OCAS application assistance.
Need support with your post-secondary planning?
What OSSD Courses Do You Need for University?
Which OSSD courses do you need for university in Ontario? Learn how to check program prerequisites, what 4U courses are, and how to take a missing prerequisite online before applications are due.
If you're planning to attend university in Ontario, choosing the right OSSD courses is an important part of your high school plan. University programs have specific admission requirements and prerequisites, so students should check what courses they need before choosing their Grade 12 schedule.
For students thinking about university, September is a good time to review those requirements and make sure their courses line up with their post-secondary goals.
Which Courses Are Required for University?
The courses you need depend on the university program you want to apply to. Many Ontario university programs require specific Grade 12 University Preparation (4U) courses, while others have additional prerequisites.
For example, a student interested in engineering may need specific Grade 12 math, physics, or chemistry courses, while another program may have completely different requirements.
The best place to start is by researching the programs you're interested in and making a list of their required courses.
What Does 4U Mean?
A 4U course is a Grade 12 University Preparation course in Ontario.
Students planning to attend university will often need several 4U courses as part of their OSSD and university admission plan. However, the exact courses required depend on the program.
Don't choose your Grade 12 courses based only on what you think you'll need. Check the admission requirements for your intended program first.
How Do You Know Which Courses You Need?
Start by looking at the admission requirements for the university programs you're considering.
Pay attention to:
Required Grade 12 courses
Specific prerequisites
Required 4U or 4M courses
Minimum admission averages
Additional program requirements
It's also important to check the university's website for the most current information, since admission requirements can change.
What If You're Missing a University Prerequisite?
Finding out that you're missing a required course doesn't necessarily mean your plans have to change.
Depending on your situation, you may be able to take an individual OSSD course to meet a prerequisite, upgrade a mark, or complete a course that isn't available through your current school.
Aubrey Academy is a Ministry-inspected online private high school in Ontario offering individual OSSD courses for students in Grades 9–12.
Online courses can be particularly useful for students who need flexibility or want to complete a specific course without changing their entire high school program.
Can You Take an OSSD Course Online?
Yes. Students can take individual OSSD courses online through an Ontario private high school.
Aubrey Academy offers a range of university-preparation courses, including ENG4U, MHF4U, MCV4U, MDM4U, SBI4U, SCH4U and SPH4U, among others.
This can be an option for students who need a prerequisite, want to upgrade a course, or need a more flexible learning schedule.
Planning Ahead for University
Students don't need to wait until Grade 12 to start thinking about university. If you have an idea of the programs or fields you're interested in, reviewing admission requirements early can help you choose courses that keep your options open.
This can be especially helpful for students who are considering competitive programs or courses with specific prerequisites.
Getting Ready for Applications
If you're applying to university this year, September is the right time to review your course plan, confirm your prerequisites, and make sure you're on track to complete the courses required for your programs.
The 2027 Ontario university application cycle is now underway, with the OUAC application deadline on January 15, 2027.
Getting organized early can help you avoid discovering a missing prerequisite when an application deadline is approaching.
What About Student Athletes?
Student athletes may need to plan their courses around training, competitions, travel, and other commitments.
Online OSSD courses can provide additional flexibility for students who need to balance academics with athletics while continuing to work toward their university goals.
Frequently Asked Questions
Can I take just one university prerequisite online?
Depending on your circumstances, yes. An individual online OSSD course may be an option if you need to complete a specific prerequisite.
Can I upgrade a Grade 12 course?
Students may be able to retake or upgrade a course to improve their mark. Always check the requirements of the university program you're applying to.
Does Aubrey Academy help students choose courses?
Yes. Aubrey Academy provides academic guidance to help students understand their OSSD requirements, course options, and post-secondary pathways.
Start Planning Your Next Steps
Choosing the right courses starts with understanding where you want to go next. Whether you're planning ahead for university, preparing for applications, balancing academics with athletics, or missing a prerequisite, having a clear course plan can help you stay on track.
Aubrey Academy offers flexible online OSSD courses for Ontario students who need to complete a prerequisite, upgrade a course, or take a course that fits their individual schedule.
Ready to find the right course for your university pathway?
Is It Too Late to Upgrade High School Marks in Ontario?
One of the most common questions families ask is:
“Is it too late to upgrade high school marks for university or college?”
The short answer is: No — it’s often not too late.
At Aubrey Academy, we regularly help students upgrade marks, earn missing credits, and strengthen their academic profile, even when deadlines feel close.
Why Students Need to Upgrade High School Marks
Students may need to upgrade marks for many reasons, including:
University or college admission requirements
Competitive program cut-offs
Low marks due to illness, personal circumstances, or disruptions
Returning to school after time away
Improving GPA for scholarships or post-secondary options
Upgrading a course can make a significant difference in admission outcomes.
How Credit Upgrades Work in Ontario
In Ontario, students are allowed to retake or upgrade high school courses through approved institutions.
At Aubrey Academy:
Courses follow the Ontario Ministry of Education curriculum
Credits count toward the Ontario Secondary School Diploma (OSSD)
Students receive official report cards and transcripts
Courses are assessed by Ontario-certified teachers
Aubrey Academy is a Ministry-inspected private high school (BSID #665140).
Is Online Learning a Good Option for Credit Upgrades?
For many students, online asynchronous learning is the most effective way to upgrade marks.
Our model allows students to:
• Start anytime (no semester restrictions)
• Work at their own pace
• Fast-track if deadlines are approaching
• Balance school with athletics, work, or personal commitments
This flexibility is especially helpful for:
• Student-athletes
• Homeschool students
• International students
• Students upgrading one or two key courses
How Aubrey Academy Supports Students
At Aubrey Academy, we provide:
Asynchronous OSSD credit courses
Credit upgrades and fast-track options
Personalized academic planning
Teacher support and feedback
Guidance for university and college pathways
Our goal is to help students move forward with confidence — not feel stuck.
If you’re wondering whether it’s too late to upgrade high school marks, the best step is to get accurate information early.
With the right support and flexibility, many students are still able to meet their post-secondary goals.
Aubrey Academy
Ontario Online Private High School
Flexible. Credible. Student-Centred.
Preparing for Post-Secondary Education: A High School Student’s Checklist
Early Acceptance Success Starts Here!
At Aubrey Academy, we know how exciting (and nerve-wracking) it can be for high school students awaiting those early acceptance letters from colleges and universities. Getting into your dream program doesn’t happen by chance. It requires thoughtful preparation, strong academics, and strategic planning throughout high school. Whether you’re in Grade 9 or finishing Grade 12, this checklist will help set you on the right path to post-secondary success.
1. Know Your Program Requirements
The first step to early acceptance is understanding the specific admission requirements of your desired program or university.
• Ontario Secondary School Diploma (OSSD): Ensure you are on track to meet the 30-credit requirement.
• Prerequisite Courses: Programs like Engineering, Health Sciences, or Business often have required Grade 12 courses. Start planning these as early as Grade 9.
• Grade Averages: Many competitive programs look for averages of 85% or higher for early acceptance.
Tip: Aubrey Academy’s small class sizes and focused learning environment can help students excel in required courses and improve their grades.
2. Choose the Right Courses to Boost Your Application
Private schools like Aubrey Academy offer flexibility in course selection, allowing students to align their credits with post-secondary goals.
• Focus on High-Impact Courses: Take courses like Grade 12 Advanced Functions, Biology, or Business Leadership if they align with your chosen field.
• Upgrade Credits: If you need to improve a grade to meet program requirements, consider retaking a course or enrolling in a summer course.
Did you know? At Aubrey Academy, students can fast-track credits or take additional courses to strengthen their applications.
3. Build a Strong Academic Record
Universities look for consistent academic performance.
• Start Early: Your Grade 11 and Grade 12 marks carry the most weight in admission decisions.
• Seek Support: Struggling in a subject? Private schools offer personalized attention to help students succeed.
Our certified teachers at Aubrey Academy work closely with students to ensure they meet—and exceed—academic expectations.
4. Highlight Extracurricular Activities and Leadership
A well-rounded application is about more than just grades. Many universities value leadership, community involvement, and extracurricular achievements.
• Join Clubs and Teams: Participate in activities that reflect your interests.
• Take Entrepreneurship Classes: Business courses like those offered at Aubrey Academy teach leadership and problem-solving skills.
• Volunteer Work: Highlight how you’ve contributed to your community.
5. Stay Organized with Application Deadlines
Early acceptance applications often have tighter deadlines, so staying organized is critical.
• Research Dates: Know when OUAC (Ontario Universities’ Application Centre) deadlines are for early and regular admissions.
• Prepare in Advance: Gather transcripts, reference letters, and personal statements well before due dates.
Aubrey Academy’s academic advisors help students stay on track and submit competitive applications on time.
6. Use Private School Advantages to Get Ahead
One of the main advantages of attending a private high school like Aubrey Academy is the ability to customize your education.
• Fast-Track Credits: Earn additional credits in a few weeks to graduate early or improve averages.
• Focused Learning: Benefit from smaller class sizes and one-on-one support.
• Flexible Scheduling: Enroll in courses during the school year or summer to align with your academic goals.
By choosing a private school, students gain the tools and flexibility they need to stand out in competitive post-secondary admissions.
Success Starts at Aubrey Academy
At Aubrey Academy, we pride ourselves on helping students achieve their post-secondary dreams. With personalized support, quality education, and flexible learning opportunities, our students are well-prepared to earn early acceptances to their top-choice programs.
Are you ready to secure your future? Enroll with Aubrey Academy today and let us help you achieve your academic goals!