OSU Academic Calendar 2025-2026: Ohio State Important Dates

The OSU Academic Calendar 2025-2026 has important dates and deadlines like the last day to drop a class and end-of-semester options (such as pass/no pass or late withdrawal).

Staying on top of the Ohio State University (OSU) academic calendar is essential for planning everything from class registration to graduation.

OSU operates on a semester system, with each semester lasting about 15 weeks, including fall and spring terms, plus an optional summer session that runs a shorter schedule.

In 2012, Ohio State University transitioned from a quarter calendar to a semester calendar, with the first semester being held in the Summer Term of 2012.

The summer term is condensed but still provides full academic credit, and OSU typically does not hold regular classes on Memorial Day.

Full-time enrollment requires at least 12 credit hours per semester, and undergraduates need around 120 credit hours to graduate, which usually takes four years.

As for tuition at Ohio State, one semester at OSU costs approximately $5,400 for in-state students and over $17,000 for out-of-state students, with annual costs doubling that.  

OSU Academic Calendar Fall 2025

Here is the Ohio State Fall 2025 academic calendar.

1. The initial tuition, fee, and housing/dining payment deadline is Tuesday, August 19, 2025 (unpaid accounts incur late fees after this date).
2. Ohio State Fall 2025 classes start on Tuesday, August 26, 2025. It is also the first day of classes for the OSU Autumn 7-week Session 1.
3. The last day for a 100% refund and to add courses without instructor permission is Friday, August 29, 2025.
4. The deadline for program/plan/campus changes and Ohio residency applications is Friday, August 29, 2025.
5. Labor Day (no classes, offices closed) is observed on Monday, September 1, 2025.
6. For 7-week Session 1, September 5 is the:
   • Last day to drop without a “W” grade
   • Last day for audit/pass/non-pass options (undergrads)
   • Last day of the 50% refund period
   • Last day to add courses without a petition
7. The 75% refund period ends for the Autumn Full Term on Friday, September 5, 2025.
8. Late fees ($500 registration + $100/course) apply starting Saturday, September 6, 2025.
9. According to the OSU Academic Calendar Fall 2025, the census date (15th-day reporting) is Tuesday, September 9, 2025.
10. For Autumn (Fall 2025) Full Term, September 19 is the:
    • Last day to drop without a “W”
    • Last day for audit/pass/non-pass options (undergrads)
    • Last day of the 50% refund period
11. For 7-week Session 1, September 26 is the:
    • Last day to drop without petition
    • Grade Forgiveness petition deadline (5:00 PM)
12. 7-week Session 1 classes end Monday, October 13, 2025.
13. 7-week Session 1 finals are Tuesday, October 14, to Wednesday, October 15, 2025.
14. Autumn Break (no classes, offices open) is Thursday, October 16, to Friday, October 17, 2025.
15. 7-week Session 2 classes begin Monday, October 20, 2025.
16. For 7-week Session 2, October 24 is the:
    • Last day for a 100% refund
    • Last day to add courses without the instructor’s permission
17. For Autumn (Fall 2025) Full Term, October 31 is the:
    • Last day to drop without petition
    • Grade Forgiveness petition deadline (5:00 PM)
18. For 7-week Session 2 on the OSU Academic Calendar, October 31 is:
    • Last day to drop without a “W”
    • Last day for audit/pass/non-pass options
    • Last day of the 50% refund period
    • Last day to add without petition
19. Late fees apply for the 7-week Session 2 starting Saturday, November 1, 2025.
20. The census date for 7-week Session 2 is Monday, November 3, 2025.
21. Veteran’s Day (no classes, offices closed) is Tuesday, November 11, 2025.
22. For 7-week Session 2 on the OSU Academic Calendar, November 21 is the:
    • Last day to drop without petition
    • Grade Forgiveness petition deadline (5:00 PM)
23. Thanksgiving Break begins (no classes, offices open) on Wednesday, November 26, 2025. Thanksgiving Day (offices closed) is Thursday, November 27, 2025.
24. Indigenous Peoples Day/Columbus Day observed (no classes, offices closed) on Friday, November 28, 2025.
25. Ohio State classes end for fall 2025 (Autumn Full Term) and 7-week Session 2 on Wednesday, December 10, 2025.
26. Students with unpaid prior balances will be dropped from Spring courses on Thursday, December 11, 2025.
27. Reading Day is Thursday, December 11, 2025.
28. OSU Fall 2025 Final examinations run from Friday, December 12, to Thursday, December 18, 2025.
29. OSU Graduation 2025 and Commencement date is Sunday, December 21, 2025. The Ohio Residency appeals deadline is the same day.
30. Presidents Day is observed (offices closed) on Wednesday, December 24, 2025.
31. Christmas Day (offices closed) Thursday, December 25, 2025.

OSU Academic Calendar Spring 2026

Here is the Ohio State Spring 2026 academic calendar.

1. New Year’s Day (offices closed) is observed on Thursday, January 1, 2026.
2. Initial tuition and fee payments are due on Monday, January 5, 2026.
3. OSU Spring 2026 semester and first-session classes begin on Monday, January 12, 2026.
4. Martin Luther King Jr. Day (no classes, offices closed) is observed on Monday, January 19, 2026.
5. The enrollment census date for semester/first-session courses is Monday, January 26, 2026.
6. First-session classes end on Friday, February 27, 2026.
7. First-session final examinations occur on Monday, March 2, and Tuesday, March 3, 2026.
8. Second-session classes begin on Wednesday, March 4, 2026, according to the OSU Academic Calendar 2025-2026.
9. OSU Spring Break 2026 is from Monday, March 16 to Friday, March 20, 2026.
10. The enrollment census date for second-session courses is Wednesday, March 18, 2026.
11. Semester and second-session classes end on Monday, April 27, 2026.
12. Semester and second-session final examinations occur from Wednesday, April 29, to Tuesday, May 5, 2026.
13. Spring Commencement is held on Sunday, May 10, 2026

OSU Academic Calendar Summer 2026

Here is the Ohio State Summer 2026 academic calendar.

1. Initial tuition and fee payments are due on Monday, May 4, 2026, according to the Ohio State academic calendar for Summer 2026.
2. Summer Term classes begin for 8-week Session 1, 6-week Session 1, and 4-week Session 1 on Monday, May 11, 2026.
3. The enrollment census date for Summer Term/8-week Session, 1/6-week Session 1/4-week Session 1 is Monday, May 25, 2026.
4. Memorial Day (no classes, offices closed) is observed on Monday, May 25, 2026.
5. 4-week Session 1 classes end on Thursday, June 4, 2026.
6. 8-week Session 2 and 4-week Session 2 classes begin on Friday, June 5, 2026.
7. 6-week Session 1 classes end on Thursday, June 18, 2026, according to the OSU Academic Calendar 2026.
8. The enrollment census date for 8-week Session 2 and 4-week Session 2 is Friday, June 19, 2026.
9. Juneteenth National Independence Day (no classes, offices closed) is observed on Friday, June 19, 2026.
10. 6-week Session 2 classes begin on Monday, June 22, 2026.
11. 8-week Session 1 and 4-week Session 2 classes end on Thursday, July 2, 2026.
12. 4-week Session 3 classes begin on Monday, July 6, 2026.
13. The enrollment census date for 6-week Session 2 is Monday, July 6, 2026.
14. Independence Day (no classes, offices closed) is observed on Friday, July 3, 2026.
15. The enrollment census date for 4-week Session 3 is Monday, July 20, 2026, according to the Ohio State Academic Calendar.
16. Summer Term classes end for 8-week Session 2, 6-week Session 2, and 4-week Session 3 on Thursday, July 30, 2026.
17. Final examinations for the Summer Term are administered from Monday, August 3, to Wednesday, August 5, 2026.
18. Summer Commencement is held on Sunday, August 9, 2026.

For the most accurate and up-to-date details on key academic dates and important deadlines, visit the Ohio State University Registrar’s official website.

There, you can access and download the full OSU academic calendar in PDF format, including both 3-year and 5-year semester calendars, to help you plan your coursework, graduation timeline, and credit hour requirements effectively.