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Dec 08, 2025
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2025-2026 University Catalog
Summer 2025 Add/Drop
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Please note the submission date is not the effective date. Your request cannot be processed until all required actions from campus partners are complete. This may affect your refund and/or if your request is canceled for not meeting the university established deadlines.
All required actions must be completed by 11:59 PM EST on said deadline day
Information on refunds from the University may be found at the following website: https://www.purdue.edu/treasurer/finance/bursar-office/tuition/refund-and-withdrawals/
Students withdrawing from ALL course assignments after classes have begun should go to myPurdue, Registration tab, and look for Withdraw Information.
The revision/refund dates on this calendar apply to courses that exactly fit the time frames listed. Courses offered outside of these time frames have their own deadlines (2-week courses, etc.). Additional information for these courses can be found by viewing the Short Course Drop/Add Refund Dates here: https://www.purdue.edu/registrar/calendars/index.htm
- 12 Weeks / Full term: May 19 - August 8 (58 days)
- 1st 8 Weeks: May 19 - July 11 (38 days)
- 2nd 8 Weeks: June 16 - August 8 (39 days)
- 1st 4 Weeks: May 19 - June 13 (19 days)
- 2nd 4 Weeks: June 16 - July 11 (19 days)
- 3rd 4 Weeks: July 14 - August 8 (20 days)
*last updated 1/15/2025
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To ADD or MODIFY a Course
12 Weeks | 1st 8 Weeks | 2nd 8 Weeks | 1st 4 Weeks | 2nd 4 Weeks | 3rd 4 Weeks | Authorizations Required | | May 19 - May 22 | May 19 - May 20 | May 19 - May 20 | May 19 | June 16 | July 14 | (COURSE SPACE AVAILABILITY REQUIRED)
Students may add courses via the Scheduling Assistant. | | May 28 | May 22 | June 20 | May 20 | June 17 | July 16 | Last day to audit and/or request H grade mode.
Submit change of grade mode to Audit / Honors after officially enrolled. | | May 23 - July 2 | May 21 - June 17 | June 18 - July 16 | May 20 - June 3 | June 17 - June 30 | July 15 - July 28 | Advisor and Instructor
Submit request via the Scheduling Assistant. | | May 23 | May 23 | June 20 | May 23 | June 20 | July 15 | $200 Late Registration Fee Begins | To DROP a Course
12 Weeks | 1st 8 Weeks | 2nd 8 Weeks | 1st 4 Weeks | 2nd 4 Weeks | 3rd 4 Weeks | Authorizations Required | | May 19 - May 28 | May 19 - May 23 | June 16 - June 20 | May 19 - May 20 | June 16 - June 17 | July 14 - July 16 | No Authorizations required (Course not recorded)
Students may drop courses via the Scheduling Assisstant. | | May 29 - July 24 | May 24 - July 1 | June 21 - July 30 | May 21 - June 9 | June 18 - July 7 | July 17 - August 4 | Advisor (Course recorded with a grade of “W”)
Submit request via the Scheduling Assisstant. | REFUND Percentage of Fees & Tuition
12 Weeks | 1st 8 Weeks | 2nd 8 Weeks | 1st 4 Weeks | 2nd 4 Weeks | 3rd 4 Weeks | PERCENTAGE | | Before May 23 | Before May 23 | Before June 20 | Before May 23 | Before June 20 | Before July 18 | 100% | | May 23 - May 29 | May 23 - May 26 | June 20 - June 24 | N/A | N/A | N/A | 80% | | May 30 - June 6 | May 27 - June 1 | June 25 - June 30 | May 23 - May 27 | June 20 - June 24 | July 18 - July 22 | 60% | | June 7 - June 13 | June 2 - June 7 | July 1 - July 5 | May 28 - June 2 | June 25 - June 29 | July 23 - July 27 | 40% | | After June 13 | After June 7 | After July 5 | After June2 | After June 29 | After July 27 | NONE | |
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