Session C
May 26 – July 17, 2026
Registration Begins
| Date | Student Group |
|---|---|
| March 4 | Continuing degree students See Enrollment Dates |
| March 9 | Readmitted degree students New undergraduate degree students New graduate degree students Non-degree students |
Session Course Schedule
| Date | Important Event |
|---|---|
| May 26 | Classes begin |
| June 19 | Juneteenth Holiday, CU Boulder closed |
| July 3 | Independence Day Observed, CU Boulder closed |
| July 17 | Final exams |
| August 13 | Degree conferral date |
See your syllabus for specific dates for each course.
Add/Drop/Withdrawal Deadlines
Course section numbers 300-399 or 830-839
| Date | Milestone | Additional Information |
|---|---|---|
| May 29 (11:59 p.m.) | Last day to join a waitlist | Use CU Boulder Class Search. |
| May 29 (11:59 p.m.) | Last day to add a class | Use CU Boulder Class Search. |
| June 1 | Class waitlists are canceled | Waitlisted students lose access to online course materials. |
| June 2 (11:59 p.m.) | Last day to drop a class without penalty | Use CU Boulder Class Search or Buff Portal. No tuition and fees are assessed; W notations do not post to transcripts. |
| June 2 (11:59 p.m.) | Last day to drop all enrolled classes (i.e., withdraw) without penalty | Use CU Boulder Class Search or Buff Portal. No tuition and fees are assessed; W notations do not post to transcripts. |
| June 2 (11:59 p.m.) | Last day to change variable credit hours | Use CU Boulder Class Search or Buff Portal. |
| June 2 (11:59 p.m.) | Last day to request to take a class for no credit (audit) | Submit an online no-credit request. |
| June 30 (11:59 p.m.) | Last day to drop a class | Use CU Boulder Class Search or Buff Portal. Full tuition and fees are assessed; W notations post to transcripts. |
| June 30 (11:59 p.m.) | Last day to drop all enrolled classes (i.e., withdraw) without a dean's signature | Use CU Boulder Class Search or Buff Portal. Full tuition and fees are assessed; W notations post to transcripts. |
| June 30 (11:59 p.m.) | Last day to change a class's grade mode to or from pass/fail | Use CU Boulder Class Search or Buff Portal. |
| July 14 | Last day to petition to add a class late | Contact the course department. |
| July 16 (11:59 p.m.) | Last day to request a Session C withdrawal | Submit an online withdrawal form. Full tuition and fees are assessed; W notations post to transcripts. |
See the withdrawal section if you are dropping all of your classes in Session C.
Tuition
Bills for tuition and fees are available in Buff Portal by the second Thursday of each month depending on your registration date. Payments are due on the 5th day of the following month. See the Tuition and Financial Aid section for detailed information.
| Registration for Any Session by/between | Billing Available | Tuition Due |
|---|---|---|
| May 12 | May 14 | June 5 |
| May 13 – June 9 | June 11 | July 5 |
| June 10 – July 7 | July 9 | August 5 |
| July 8 – August 11 | August 13 | September 5 |
| August 12 – September 8 | September 10 | October 5 |
Specific due dates are listed on your bill. Students can log in to Buff Portal anytime and view their billing information. See the Bursar's Office website for additional details.