The semester-based academic calendar provides students, faculty and staff with important dates and deadlines.
- Semester start and end dates
- registration
- course add/drop/withdraw deadlines
- reading days and final exams
- breaks and holidays
- future academic calendars
Every reasonable attempt is made to ensure the accuracy and completeness of this calendar. Dates can change without notice when circumstances warrant, and the calendar is updated accordingly. Individual schools may also have their own specific dates and deadlines, as it is not uncommon for the graduate and professional programs to follow different deadlines.
View Current & Future Academic Calendars
Undergraduate Business
2026 Summer Semester
May 18
First day of Summer Session I
First day of Summer Session I
Please note dates may vary by school, please check your specific school’s calendar.
The Olin Business School Summer Semester Start date is Friday, May 15, 2026.
May 20
Last day to Add/Drop (D) a Summer Session I class
May 25
Memorial Day Holiday - No Classes
May 29
Last day to change grade option or withdraw for Summer Session I Classes
June 1
Last day to withdraw (W) from Half A classes
Last day to withdraw (W) from Half A classes
A “W” will appear on an official transcript.
June 1
Last day to change grade option for Olin Business School regular session classes
June 5
Last day of Summer Session I classes
June 8
Summer Sessions II & III begin
June 10
Last day to Add/Drop (D) on Summer Session II Classes
June 15
Last day to Add/Drop (D) for Summer Session III classes
July 1
Last Day to Apply for Summer 2026 Program Completion
July 3
Independence Day Holiday Observed - No Classes
July 6
Last day to change grade option or withdraw from Summer Session II classes
July 10
Last day of Summer Session II classes
July 13
Summer Session IV Begins
July 15
Last day to Add/Drop with a "D" for Summer Session IV classes
July 21
Last day to change grade option or withdraw for Summer Session III classes
July 24
Last day to withdraw (W) from regular session classes
Last day to withdraw (W) from regular session classes
Classes dropped after this date will be assigned a withdrawal “W”.
July 31
Last day of Summer Session III classes
August 7
Last day to change grade option or withdraw for Summer Session IV classes
August 13
Dissertation submission deadline
August 13
Summer Session IV Ends
August 13
Summer 2026 Degree Date