Important dates include registration, payment, coursework, final submission and graduation deadlines, grades availability, and university-wide holiday closures. View complete 2025-26 sessional dates on the SGS Calendar website.
| May | For first day of Summer classes, consult your graduate unit(s) |
| May 1 | Registration deadline for students registering or starting their program in the Summer (May to August) session; after this date, a late registration fee will be assessed. Minimum required payment due (unpaid fees from previous session[s] + 50% of Summer session tuition fees). A student’s status on ACORN will change from “Invited” to “Registered” when registration is complete(1)(5) |
| May 8 | Coursework must be completed and grades submitted for full-year and Winter session courses (except for extended courses)(4) |
| May 11 | Final date to enrol in May-to-June or May-to-August session courses(5) |
| May 13 | Grades for Winter session courses available for viewing by students on ACORN |
| May 15 | Presidential Day (University closed)(2) |
| May 18 | Victoria Day (University closed)(2) |
| May 31 | Payment deadline to avoid service charges on unpaid Summer (May to August) session tuition and non-tuition fees for students registered in the Summer session, except for those who have successfully registered without payment because they are receiving a full funding package via a research stipend, a major award or scholarship, teaching assistantships, tuition waiver, and/or sponsorships. Monthly service charges will begin accruing on June 15(8) |
| June Convocation | June Convocation information and dates are posted on the Convocation website |
| June 1 | Final date to drop May-to-June F section courses without academic penalty(9) |
| June 22 | Final date to drop May-to-August session Y section courses without academic penalty(9) |
| June 29 | Presidential Day (University closed)(2) |
| June 30 | Presidential Day (University closed)(2) |
| June 30 | Students who are eligible for the domestic tuition rate by claiming a Status in Canada exemption must apply for an international fee exemption for reassessment of Summer session fees by this date. Students must report their status and provide supporting documentation to SGS Student Academic Services by this date. For more information on eligibility and required documentation for international fee exemptions, consult the Student Accounts website |
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