Waterloo deadlines, September 2027 entry
OUAC closes January 15, 2027 for everyone. At University of Waterloo, 4 supplementary deadlines are verified on Waterloo's site, 4 scholarship applications close on dates of their own.
Every date here says where it came from. Dates from last cycle are labelled as such and are never shown as this year’s. Confirm anything you are about to act on with Waterloo.
Supplementary deadlines read on Waterloo's own site
Checked on the university’s pages, last on 2026-08-15. Each row links to the page the date was read from. These close on the university’s clock, not OUAC’s, and most close before January 15.
- January 20, 2027confirmed for 2027Waterloo applicant portal
Pharmacy (including Conditional Admission to Pharmacy)
Admission Information Form, on the earliest Waterloo deadline of all.
- February 1, 2027confirmed for 2027Waterloo applicant portal + Kira Talent
Applying to BOTH an Engineering program and a Faculty of Mathematics program
The earlier Engineering deadline governs everything — the AIF, the online interview and all supplementary forms. This is the most avoidable way a strong applicant loses Engineering: they read February 15 on the Math page and miss the Engineering cutoff by two weeks.
"If you've applied to an Engineering program AND a program(s) in the Faculty of Mathematics, you must submit the AIF, online interview, and supplementary forms by the Engineering deadline (February 1, 2027 at 11:59 p.m. Eastern Time) so that you meet the requirements for Engineering."
- February 1, 2027confirmed for 2027Waterloo applicant portal + Kira Talent
All Engineering programs
Admission Information Form (AIF), plus an online video interview for Engineering applicants.
- February 15, 2027confirmed for 2027Waterloo applicant portal
All other AIF programs, including the Faculty of Mathematics
Admission Information Form (AIF).
All 23 Waterloo programs that need more than marks, and what each asks for
Scholarship application deadlines
Only the awards that need an application have a date. Most entrance money at Ontario universities is automatic on your average, with nothing to submit.
- April 15, 2027Entrance Scholarships for Black Students and Indigenous Students$40,000
- April 15, 2027Joyce Scholars Award$20,000
- April 15, 2027Entrance Bursaries$5,000
- April 15, 2027Faculty of Health Entrance Scholarships (Various)$5,000
Every entrance scholarship at Waterloo, and what your average is worth
When Waterloo decides, and what happens after
In Waterloo’s own words to guidance counsellors, from the OUAC resource guide (September 2026 entry).
- When offers go out
We make admission decisions between January and May once updated grades are received from high schools. We include all required courses when evaluating a student's admission average.
All offers of admission are conditional upon completing OSSD and maintaining the grades indicated in a student's offer of admission.
All applicants must complete a Declaration of Academic Experience once we have acknowledged their application.
- Deferring your offer
Students may request a deferral of their admission for up to 1 full year. | www.uwaterloo.ca/future/defer
- Tuition deposit
Tuition deposit not required. However, students requiring an attestation letter will need to pay a $5,000 deposit. www.uwaterloo.ca/future/international-students/visas
Indigenous Tuition Waiver: https://uwaterloo.ca/indigenous/student-resources/ tuition-waiver-eligible-indigenous-students
OUAC dates that apply to everyone
The 2026–27 (entry September 2027) schedule from OUAC’s counsellor site, checked 2026-08-20. The source. The dates you act on yourself; the school-to-OUAC and OUAC-to-university transmission dates are on the full calendar.
- August 2026youThe OUAC relaunches Ontario Universities' Info and starts posting application material for fall 2027 admission. This is the month the information appears, not the month you can apply.
- Mid-September 2026not published by OUACyouThe OUAC application opens for Ontario high school students. OUAC has not published an exact date for this cycle — anything you see online naming a specific day is not coming from OUAC.
- January 15, 2027youThe deadline for Ontario high school students to submit their completed application. This is the one date everybody knows — but several supplementary applications land before it. The OUAC still processes applications received after this date, though individual university deadlines then apply.
- May 28, 2027youThe latest date you can expect a response if you applied by January 15 — an offer, a refusal, or a deferral of admission.
- June 1, 2027youThe earliest date a university can require you to respond to an offer or pay a deposit. Scholarships, financial aid and residence all count as part of the offer: you may accept them earlier if you want to, but nothing can be demanded of you before this date.
Deadline reminders
Supplementary applications close before the January OUAC deadline, and some land in early December. We’ll email you before the ones that apply to you.
We send your email address and the programs you’ve starred, so the reminders are the right ones. Your marks and your average are never sent — they stay in this browser. Deadline emails only, and you can reply to stop them.
Everything else about Waterloo: every program, range and policy