Supplementary Applications and Assessments for Ontario Programs
Beyond the OUAC form, many Ontario programs add supplementary applications, video interviews and written assessments. Learn what they are and how to plan for them.
Last updated
Key facts
- Waterloo AIF
- Required for many programs, including all Engineering
- McMaster
- Program-specific supplementary apps; some programs use CASPer
- Deadlines
- Separate from the main form — verify per program
- Where completed
- University applicant portal (after OUAC submission)
The OUAC form is only step one
Submitting your OUAC application does not always complete your application to a program. Many competitive Ontario programs ask for extra, program-specific material after you apply — collectively called supplementary applications or assessments.
These let admissions teams learn about you beyond your grades: your interests, reasoning, communication and motivation. Missing one can mean your application is not considered for that program, even if your grades are strong. So the moment you choose your programs, find out which of them require extra steps.
Common types of extra steps
Supplementary requirements come in several forms. The exact mix depends entirely on the university and program you choose.
- Supplementary application forms — extra questionnaires or short-answer essays about you (used by several programs)
- Admission Information Form (AIF) — Waterloo's online form of short questions, required for many programs including all Engineering programs
- Video interviews — short recorded responses used by some programs (e.g. certain Waterloo programs)
- Written assessments / situational tests — such as CASPer, an online situational-judgement test used for some programs (e.g. McMaster Nursing)
- Program-specific supplementary applications — e.g. McMaster's Honours Health Sciences supplementary application, portfolios for design programs, or auditions for music
Where these show up: a few real examples
Two well-known Ontario examples help make this concrete. At the University of Waterloo, many programs (including all Engineering programs) ask applicants to complete the Admission Information Form — and some programs add to it with short supplementary forms or a video interview. Waterloo lists exactly what each program needs in your applicant portal.
At McMaster University, several programs use program-specific supplementary applications. The Honours Health Sciences program uses a written supplementary application, and some programs (such as Nursing) use an online assessment like CASPer. Because these requirements and the tools used change between cycles, always confirm the current step list on the official program page rather than assuming last year's process still applies.
Plan your timeline around them
The biggest risk with supplementary steps is timing. They often have their own deadlines — sometimes earlier than you expect — and a written assessment or video interview can take real preparation. International applicants juggling transcripts, English tests and a study permit need to schedule carefully.
- List every program you applied to and check each one's supplementary requirements
- Write down the separate deadline for each supplementary step
- Prepare written and video responses in advance — do not improvise on the deadline
- Watch your university applicant portal and email for required-task checklists
- Verify every requirement and date on the official program page
How to keep on top of it
Treat the OUAC submission as the trigger, not the finish line. After you apply, each university typically gives you access to an applicant portal showing outstanding tasks. Check it regularly, complete each task before its own deadline, and keep a simple tracker so nothing slips. When in doubt about whether a step is required, contact the university's admissions office directly.
Frequently asked questions
What is a supplementary application?
It is extra, program-specific material you submit in addition to the OUAC form — such as a questionnaire, short essays, a video interview or an online assessment. Some Ontario programs require it; missing it can remove you from consideration. Check each program's official page to see if one applies.
What is the Waterloo AIF?
The Admission Information Form is an online form of short questions in your Waterloo applicant portal that lets Waterloo learn about your activities and goals. It is required for many Waterloo programs, including all Engineering programs, and some programs add short supplementary forms or a video interview. See Waterloo's official AIF page for current details.
Is CASPer required for all Ontario programs?
No. CASPer is an online situational-judgement assessment used by only some programs (for example, McMaster Nursing). Most programs do not use it. Always confirm on the specific program's official admissions page whether CASPer or any assessment is required.
When are supplementary applications due?
They usually have their own deadlines, which can differ from — and sometimes fall before — the main application deadline. There is no single universal date. Check each program's official page and your applicant portal, and verify every deadline there.
Where do I complete these extra steps?
Usually in the university's own applicant portal, which you typically receive access to after submitting your OUAC application. The portal lists outstanding tasks. Watch your email for instructions and complete each task before its deadline.
Official sources
This guide explains the process and is for guidance only. Eligibility, dates, fees and rules change every year — always confirm the current details on the official site before you act.
Verified against: University of Waterloo — Admission Information Form (AIF); McMaster University — Supplementary Applications; McMaster — Honours Health Sciences Supplementary Application; OUAC — Undergraduate Application Guide.
Last verified: 24 June 2026.
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