Seneca Important Dates 2025-2026: Academic Calendar Dates

The Seneca Important Dates 2025-2026 includes vital academic dates and deadlines, ranging from tuition deposit due dates and financial aid deadlines to add/drop periods and final examination schedules.

Seneca’s academic year is structured into three distinct terms: Fall, Winter, and Summer. Each term, typically around 14 weeks of instruction, brings its own set of critical Seneca deadlines for every stage of your educational journey.

To help you plan effectively, we’ve broken down all the important dates by term, including the unique Seneca 7-week session dates for shorter courses.

Bookmark this essential resource to ensure you never miss a vital academic milestone at Seneca Polytechnic.

Seneca Important Dates Fall 2025

The Fall 2025 term brings a host of crucial deadlines for all students.

From the first day of classes and tuition payment deadlines to add/drop periods and exam schedules, this section provides a comprehensive overview of all Seneca’s Fall 2025 important dates.

Plan your Fall 2025 academic calendar with confidence to ensure a successful start to the academic year, including details on orientation dates for new students, 7-week session dates (7S1, 7S2), and study week periods.

1. New domestic students’ tuition deposit is due on Wednesday, June 11, 2025.
2. Returning students’ tuition deposit is due on Wednesday, July 9, 2025.
3. The transfer credit request deadline is Friday, August 1, 2025.
4. Open enrollment begins on Friday, August 8, 2025.
5. Virtual Orientation for international students on Monday, August 11, 2025.
6. 16W Session classes begin on Monday, August 18, 2025.
7. Virtual Orientation for all students on Friday, August 29, 2025.
8. Labour Day (college closed) on Monday, September 1, 2025.
9. Regular Session (1), 7S1, and 7S2 classes begin on Tuesday, September 2, 2025.
10. Fall tuition payment is due on Tuesday, September 2, 2025.
11. The last day to add courses for all sessions is Thursday, September 11, 2025.
12. Last day to drop courses without grade/refund (Session 1 & 7S1) on Monday, September 15, 2025.
13. The late tuition payment period begins (10% penalty) on Wednesday, September 17, 2025, according to the Seneca Important Dates Schedule.
14. Last day to withdraw from 7S1 courses (DNC grade) on Friday, October 3, 2025.
15. Thanksgiving (college closed) on Monday, October 13, 2025.
16. 7S1 Session classes end on Friday, October 17, 2025.
17. Seneca Study Week runs from Monday, October 20, 2025, to Friday, October 24, 2025.
18. Convocation for August 2025 graduates runs from Thursday, October 23, 2025, to Sunday, October 26, 2025.
19. 7S2 Session classes begin on Monday, October 27, 2025.
20. The last day to add 7S2 ELI courses is Friday, October 31, 2025.
21. The second late tuition payment period begins (additional penalty) on Thursday, November 6, 2025.
22. The last day to drop 7S2 courses without a grade/refund is Friday, November 7, 2025.
23. Last day to withdraw from Session 1 courses (DNC grade) on Friday, November 7, 2025.
24. Winter 2026 tuition deposits due (new/returning students) on Wednesday, November 12, 2025.
25. Last day to withdraw from 7S2 courses (DNC grade) on Friday, November 28, 2025, according to the Seneca Important Dates Schedule.
26. The Winter 2026 transfer credit request deadline is Monday, December 1, 2025.
27. Winter 2026 open enrollment begins on Thursday, December 4, 2025.
28. Fall Term ends on Friday, December 12, 2025 (all sessions).
29. Final grades available on Friday, December 19, 2025.
30. The Christmas Holiday closure runs from Thursday, December 25, 2025, to Thursday, January 1, 2026.
31. The grade change deadline is on Friday, January 23, 2026.

Seneca Important Dates Winter 2026

The Winter 2026 term at Seneca Polytechnic is a crucial period for many students. Whether you’re commencing a new program, returning from the holiday break, or nearing graduation, understanding the key dates for this term is vital.

This section details all Seneca’s Winter 2026 important dates, including the class begin date of January 5, 2026, course add/drop deadlines, tuition payment due dates, and the Winter Reading Week (February 23 – 27, 2026).

You’ll also find information on final exam dates and when final grades will be available for the Winter 2026 term. Stay organized and on track by familiarizing yourself with every significant milestone in the Seneca academic calendar for Winter 2026.

1. Winter tuition deposits are due for new/returning students on Wednesday, November 12, 2025.
2. The transfer credit request deadline is Monday, December 1, 2025.
3. Open enrollment begins on Thursday, December 4, 2025.
4. New Year’s Day closure on Thursday, January 1, 2026.
5. College reopens on Friday, January 2, 2026.
6. Winter Term begins: All sessions start on Monday, January 5, 2026.
7. Winter tuition payment is due on Monday, January 5, 2026.
8. The last day to add courses for all sessions is Wednesday, January 14, 2026.
9. Last day to drop courses without grade/refund (Session 1 & 7S1) on Friday, January 16, 2026.
10. The late tuition payment period begins (10% penalty) on Wednesday, January 21, 2026, according to the Seneca Important Dates Schedule.
11. Fall 2025 grade submission deadline is on Friday, January 23, 2026.
12. Last day to withdraw from 7S1 courses (DNC grade) on Friday, February 6, 2026.
13. Family Day closure on Monday, February 16, 2026.
14. 7S1 Session classes end on Saturday, February 21, 2026.
15. Seneca Winter 2026 Study Week runs from Monday, February 23, 2026, to Friday, February 27, 2026.
16. 7S2 Session classes begin on Monday, March 2, 2026.
17. The second late tuition payment period begins (additional penalty) on Wednesday, March 4, 2026.
18. The last day to add 7S2 ELI courses is Friday, March 6, 2026.
19. Summer 2026 tuition deposits are due on Wednesday, March 11, 2026.
20. The last day to drop 7S2 courses without a grade/refund is Friday, March 13, 2026.
21. Last day to withdraw from Session 1 courses (DNC grade) on Friday, March 13, 2026.
22. Late tuition payment for 7S2 ELIB courses begins on Wednesday, April 1, 2026.
23. The summer 2026 transfer credit request deadline is Wednesday, April 1, 2026.
24. Last day to withdraw from 7S2 courses (DNC grade) on Thursday, April 2, 2026.
25. Good Friday closure on Friday, April 3, 2026.
26. Summer 2026 open enrollment begins on Thursday, April 9, 2026.
27. Winter Term ends on Friday, April 17, 2026 (Regular/7S2 sessions).
28. Final grades submission deadline (9:00 AM) on Monday, April 20, 2026.
29. Final grades available on Friday, April 24, 2026 (excluding 16W).
30. 16W Session classes end on Friday, May 1, 2026.
31. 16W Session final grades available on Thursday, May 7, 2026.
32. The grade change deadline is on Thursday, May 29, 2026.

Seneca Important Dates Summer 2026

The Summer 2026 term at Seneca Polytechnic offers flexible options, including a full-term session and shorter 7-week sessions (7S1 and 7S2).

This section provides all the essential Seneca important dates for Summer 2026, starting with classes beginning on May 4, 2026.

You’ll find specific tuition payment deadlines, add/drop dates for all summer sessions, and crucial information on withdrawal deadlines.

Prepare your Summer 2026 academic calendar effectively to make the most of your summer at Seneca, ensuring you’re aware of all key dates, including final exam periods and when grades are available.

1. Summer tuition deposits are due for new/returning students on Wednesday, March 11, 2026.
2. The transfer credit request deadline is Wednesday, April 1, 2026.
3. Open enrollment begins on Thursday, April 9, 2026.
4. Summer Term begins: All sessions start on Monday, May 4, 2026.
5. Summer tuition payment is due on Monday, May 4, 2026.
6. The last day to add courses for all sessions is Wednesday, May 13, 2026.
7. Last day to drop courses without grade/refund (Session 1 & 7S1) on Friday, May 15, 2026.
8. Victoria Day closure is Monday, May 18, 2026.
9. The late tuition payment period begins (financial penalty) on Wednesday, May 20, 2026.
10. New domestic students’ Fall 2026 tuition deposit is due on Wednesday, June 10, 2026.
11. Last day to withdraw from 7S1 courses (DNC grade) on Friday, June 5, 2026.
12. 7S1 Session classes end on Friday, June 19, 2026.
13. Convocation for April 2026 graduates runs from Saturday, June 20, 2026, to Sunday, June 28, 2026.
14. Study Week runs from Monday, June 22, 2026, to Friday, June 26, 2026.
15. 7S2 Session classes begin on Monday, June 29, 2026.
16. Canada Day closure is on Wednesday, July 1, 2026, according to the Seneca Important Dates Schedule.
17. The second late tuition payment penalty period begins on Thursday, July 2, 2026.
18. The last day to add 7S2 ELI courses is Friday, July 3, 2026.
19. Returning students’ Fall 2026 tuition deposit is due on Wednesday, July 8, 2026.
20. Last day to drop 7S2 courses without grade/refund on Friday, July 10, 2026.
21. Last day to withdraw from Session 1 courses (DNC grade) on Friday, July 10, 2026.
22. The fall 2026 transfer credit request deadline is Thursday, July 31, 2026.
23. Last day to withdraw from 7S2 courses (DNC grade) on Thursday, July 31, 2026.
24. Civic Day closure on Monday, August 3, 2026.
25. Fall 2026 open enrollment begins on Friday, August 7, 2026, according to the Seneca Important Dates 2026-2027 Schedule.
26. Summer Term ends on Friday, August 14, 2026 (Regular/7S2 sessions).
27. Final grades available on Friday, August 21, 2026.

For more on Seneca Important Dates 2025-2026, visit the Seneca Polytechnic Calendar Website.