Academic Calendar
Add, drop, withdrawal and refund dates listed below are for courses that extend through the entire term. Proportionate dates apply to block and short courses. See the "Short Courses with Unique Drop/Add Deadlines" page of the Registrar website at registrar.okstate.edu for more information. Additional deadlines apply to graduate students. See the Graduate College Academic Calendar.
2024-2025
| Fall 2024 | Spring 2025 | Summer 2025 (main 8-week term) | |
|---|---|---|---|
| Late enrollment fee assessed after this date | Aug 19 | Jan 13 | Jun 9 |
| Class work begins | Aug 19 | Jan 13 | Jun 9 |
| University holiday (spring) | Jan 20 | ||
| 100% Refund, Nonrestrictive Drop/Add Deadline 1 | Aug 26 | Jan 21 | Jun 11 |
| Partial Refund, Restrictive Drop/Add Deadline 2 | Aug 30 | Jan 24 | Jun 13 |
| University holiday (fall) | Sep 2 | ||
| Six-week grades due from faculty (noon) | Oct 2 | Feb 26 | |
| Students' Spring Break | Mar 17-21 | ||
| Deadline to file graduation application (for name to appear in the fall commencement program) | Nov 1 | ||
| Deadline to file graduation application (for name to appear in the spring commencement program) | Apr 1 | Apr 1 | |
| University holiday (summer) | Jun 19 | ||
| University holiday (summer) | Jul 4 | ||
| W Drop/Withdrawal Deadline 3 | Nov 8 | Apr 11 | Jul 18 |
| Students' Fall Break | Nov 25-27 | ||
| University holiday (fall) | Nov 28-29 | ||
| Assigned W or F Drop/Withdrawal Deadline 4 | Dec 2 | Apr 25 | Jul 25 |
| Pre-Finals Week | Dec 2-6 | Apr 28-May 2 | |
| Class Work ends | Dec 6 | May 2 | Aug 1 |
| Final Examinations | Dec 9-13 | May 5-9 | |
| Graduate Commencement | Dec 13 | May 9 | |
| Undergraduate Commencement | Dec 14 | May 10 | |
| Grades due electronically from faculty (noon) | Dec 18 | May 14 | Aug 6 |
| University holiday (winter) | Dec 23-Jan 1 | ||
| Intersessions and Pre-Sessions | |||
| Fall Pre-Session | Aug 5-16 | ||
| Winter Intersession (Spring Pre-Session) | Dec 16-Jan 10 | ||
| Summer Pre-Session | May 19-Jun 6 | ||
| Summer 4-Week Parts of Term | |||
| First 4 Weeks | Jun 9-July 3 | ||
| Second 4 Weeks | Jul 7-Aug 1 |
- 1
Drop/Add and Withdrawal Deadline Details:
100% Refund, Nonrestrictive Drop/Add Deadline:
- add a course (nonrestrictive)
- drop a course with 100% refund and no grade
- 2
Partial Refund, Restrictive Drop/Add Deadline:
- add a course (requires drop/add card with instructor and advisor signatures)
- drop a course with partial refund and no grade
- 3
W Drop/Withdrawal Deadline
- drop a course with automatic grade of "W"
- withdraw from all courses with automatic grades of "W" (requires completed Withdrawal Form)
- 4
Assigned W or F Drop/Withdrawal Deadline:
- drop a course with an assigned grade of "W" or "F" by the instructor (requires completed Request to Drop a Course During the W or F Period form)
- withdraw from all classes with assigned grades of "W" or "F" by instructors (requires completed Withdrawal form)
2025-2026 (Tentative)
| Fall 2025 | Spring 2026 | Summer 2026 (main 8-week term) | |
|---|---|---|---|
| Late Enrollment Fee (Assessed if initial enrollment occurs on or after this date) | Aug 18 | Jan 12 | Jun 8 |
| Class work begins | Aug 18 | Jan 12 | Jun 8 |
| University holiday (spring) | Jan 19 | ||
| 100% Refund, Nonrestrictive Drop/Add Deadline1 | Aug 25 | Jan 20 | Jun 10 |
| Partial Refund, Restrictive Drop/Add Deadline2 | Aug 29 | Jan 23 | Jun 12 |
| University holiday (fall) | Sep 1 | ||
| Six-week grades due from faculty (noon) | Oct 1 | Feb 25 | |
| Students' Spring Break | Mar 16-20 | ||
| Deadline to file graduation application (for name to appear in the fall commencement program) | Nov 3 | ||
| Deadline to file graduation application (for name to appear in the spring commencement program) | Apr 1 | Apr 1 | |
| University holiday (summer) | Jun 19 | ||
| University holiday (summer) | Jul 3 | ||
| W Drop/Withdrawal Deadline3 | Nov 7 | Apr 10 | Jul 17 |
| Students' Fall Break | Nov 24-26 | ||
| University holiday (fall) | Nov 27-28 | ||
| Assigned W or F Drop/Withdrawal Deadline4 | Dec 1 | Apr 24 | Jul 24 |
| Pre-Finals Week | Dec 1-5 | Apr 27-May 1 | |
| Class work ends | Dec 5 | May 1 | Jul 31 |
| Final Examinations | Dec 8-12 | May 4-8 | |
| Graduate Commencement | Dec 12 | May 8 | |
| Undergraduate Commencement | Dec 13 | May 9 | |
| Grades due electronically from faculty (noon) | Dec 17 | May 13 | Aug 5 |
| University holiday (winter) | Dec 24-Jan 2 | ||
| Intersessions and Pre-Sessions | |||
| Fall Pre-Session | Aug 4-15 | ||
| Winter Intersession (Spring Pre-Session) | Dec 15-Jan 9 | ||
| Summer Pre-Session | May 18-Jun 5 | ||
| Summer 4-Week Parts of Term | |||
| First 4 Weeks | Jun 8-Jul 2 | ||
| Second 4 Weeks | Jul 6-31 |
- 1
Drop/Add and Withdrawal Deadline Details:
100% Refund, Nonrestrictive Drop/Add Deadline:
- add a course (nonrestrictive)
- drop a course with 100% refund and no grade
- 2
Partial Refund, Restrictive Drop/Add Deadline:
- add a course (requires drop/add card with instructor and advisor signatures)
- drop a course with partial refund and no grade
- 3
W Drop/Withdrawal Deadline
- drop a course with automatic grade of "W"
- withdraw from all courses with automatic grades of "W" (requires completed Withdrawal Form)
- 4
Assigned W or F Drop/Withdrawal Deadline:
- drop a course with an assigned grade of "W" or "F" by the instructor (requires completed Request to Drop a Course During the W or F Period form)
- withdraw from all classes with assigned grades of "W" or "F" by instructors (requires completed Withdrawal form)