Last updated 08/10/2026 (subject to change)
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| Fall Session 1 - Fall S1 term |
|
| First day of Fall Session 1 |
Monday, August 24, 2026 |
| Last day to add |
Thursday, August 27, 2026 |
| Last day to drop, no tuition penalty |
Monday, August 31, 2026 |
| Labor Day, university closed, Monday classes online async. recommended |
Monday, September 7, 2026 |
| Unrestricted Withdrawal Period (100% tuition liability) - must have withdrawal approved by Costello College of Business after this date |
Tuesday, September 1 - Sunday, September 20, 2026 |
| Last day of Fall Session 1 |
Sunday, October 18, 2026 |
| Fall Session 2 - Fall S2 term |
|
| First day of Fall Session 2 |
Wednesday, October 21, 2026 |
| Last day to add |
Saturday, October 24, 2026 |
| Last day to drop, no tuition penalty |
Wednesday, October 28, 2026 |
| Unrestricted Withdrawal Period (100% tuition liability) - must have withdrawal approved by Costello College of Business after this date |
Thursday, October 29 - Tuesday, November 17, 2026 |
| Thanksgiving recess, university closed - Thursday classes online async. recommended |
Wednesday, November 25 - Sunday, November 29, 2026 |
| Last day of Fall Session 2 |
Wednesday, December 16, 2026 |
| Winter recess, university closed |
Monday, December 21, 2026 - Sunday, January 3, 2027 |
| Spring Session 1 - Spring S1 term |
|
| First day of Spring Session 1 |
Monday, January 11, 2027 |
| Last day to add |
Thursday, January 14, 2027 |
| MLK Day, university closed |
Monday, January 18, 2027 |
| Last day to drop, no tuition penalty |
Tuesday, January 19, 2027 |
| Unrestricted Withdrawal Period (100% tuition liability) - must have withdrawal approved by Costello College of Business after this date |
Wednesday, January 20 - Sunday, February 7, 2027 |
| Last day of Spring Session 1 |
Monday, March 8, 2027 |
| Spring break |
Tuesday, March 9 - Sunday, March 14, 2027 |
| Spring Session 2 - Spring S2 term |
|
| First Day of Spring Session 2 |
Monday, March 15, 2027 |
| Last day to add |
Thursday, March 18, 2027 |
| Last day to drop, no tuition penalty |
Monday, March 22, 2027 |
| Unrestricted Withdrawal Period (100% tuition liability) - must have withdrawal approved by Costello College of Business after this date |
Tuesday, March 23 - Sunday, April 11, 2027 |
| Last day of Spring Session 2 |
Sunday, May 9, 2027 |
| Costello College of Business Degree Celebration (tentative date) |
Friday, May 14, 2027 |
Summer term
Summer class calendars will vary depending on which core or elective course you take. Please refer to the Office of the University Registrar's website for more details on Summer calendars: https://registrar.gmu.edu/calendars/. If you are taking a Costello course, you will most likely be taking a class in the one of the following calendars:
| Summer S71 term |
|
| First day of Summer S71 |
Friday, May 14, 2027 |
| Last day to add |
Monday, May 17, 2027 |
| Last day to drop, no tuition penalty |
Wednesday, May 19, 2027 |
| Unrestricted Withdrawal Period (100% tuition liability) - must have withdrawal approved by Costello College of Business after this date |
Thursday, May 20 - Thursday, June 3, 2027 |
| Memorial Day, university closed, Monday classes online async. recommended |
Monday, May 31, 2027 |
| Juneteenth, university closed, Friday classes online async. recommended |
Friday, June 18, 2027 |
| Last day of Summer S71 |
Thursday, July 1, 2027 |
| Summer Session - Summer D |
|
| First day of Summer Session D |
Monday, May 17, 2027 |
| Last day to add |
Monday, May 24, 2027 |
| Last day to drop, no tuition penalty (Note: residency cancellation fees apply) |
Monday, May 31, 2027 |
| Memorial Day, university closed |
Monday, May 31, 2027 |
| Unrestricted Withdrawal Period (100% tuition liability) - must have withdrawal approved by Costello College of Business after this date |
Tuesday, June 1 - Monday, June 7, 2027 |
| Global residency international travel |
Saturday, June 12 - Saturday, June 19, 2027 |
| Juneteenth, university closed |
Friday, June 18, 2027 |
| Independence Day, university closed |
Monday, July 5, 2027 |
| Last day of Summer Session D |
Saturday, July 24, 2027 |
| Summer Session 2 - Summer S72 term |
|
| First day of Summer Session 2 |
Friday, July 2, 2027 |
| Last day to add |
Monday, July 5, 2027 |
| Independence Day, university closed |
Monday, July 5, 2027 |
| Last day to drop, no tuition penalty |
Wednesday, July 7, 2027 |
| Unrestricted Withdrawal Period (100% tuition liability) - must have withdrawal approved by Costello College of Business after this date |
Thursday, July 8 - Thursday, July 22, 2027 |
| Last day of Summer Session 2 |
Thursday, August 19, 2027 |
