** The Yonsei International Summer School (YISS) is operated separately from the University's regular seasonal semester.
If you are enrolled in YISS courses, separate academic schedules and regulations apply.
Please refer to the '2026 YISS Guide (Korean/English)' at the bottom of this page.
For inquiries regarding YISS courses, please contact the Office of International Affairs at 02-2123-3535.
Guide on 2026 Summer Seasonal Classes(Undergraduate)
The 2026 summer seasonal classes will be operated according to the principle of face-to-face lectures.
Some classes will be blended with online lectures, so please check the class plan before enrolling for the course.
Please review the course syllabus before registering.
1. Schedule
|
Category |
Period |
System |
Details |
Notes |
|
Course Registration |
Wed, May 20, 2026, 08:00 – Thu, May 21, 17:00 |
Waiting Number System |
Access through the Yonsei portal system *Log-in is available from 07:00 |
- Waiting number will be given when registering for courses with full quotas |
|
1st Closure |
Fri, May 22, 2026, 18:00 |
Determination and announcement of the 1st closure of classes |
- Courses with fewer than 20 enrolled students as of the course registration deadline (May 20) at 5:00 PM will be closed. |
|
|
Additional Course Registration & Changing Courses |
Wed, May 27, 2026, 08:00 – Thu, May 28, 17:00 |
Additional applications for subjects with vacant seats only *Log-in is available from 07:00 |
- Waiting numbers and waiting lists will be all reset before this period - Waiting number will be given when registering for courses with full quotas |
|
|
2nd Closure |
Wed, May 27, 2026, 15:00 |
Determination and announcement of the 2nd closure of classes |
- Courses with fewer than 20 enrolled students as of the start day of additional course registration period(May 27) at 11:00 AM will be closed. |
|
|
Tuition Payment |
Thu, Jun 4, 2026, 09:30 – Fri, Jun 5, 17:00 Additional Payment: Tue, Jun 9, 9:30–17:00 |
|
Access the Tuition Payment on the Yonsei portal system, select Internet Banking or Print the Bill, then pay at Woori Bank |
- There may be more classes closed added depending on the registration status |
|
Classes Period |
Mon, Jun 29, 2026 – Tue, Jul 21, 2026 |
|
5 days a week, a total of 16 days of classes |
|
|
Midterm Exams |
Wed, Jul 8, 2026 |
|
|
|
|
Self Studying&Final Exams |
Mon, Jul 20 – Tue, Jul 21, 2026 |
|
|
|
|
Verification & Correction of Grades |
Tue, Jul 28 – Wed, Jul 29, 2026 |
|
Check through the Yonsei portal > academic information system |
|
|
Grade Recording |
Fri, Jul 31, 2026, 15:00 (TBA) |
|
Check through the Yonsei portal > academic information system |
|
2. Eligibility: Students currently enrolled or on leave of absence (including military leave) at the Sinchon (International) Campus and Mirae Campus
1) Students scheduled to graduate in August 2026 may take seasonal semester courses, and credits earned will be reflected in graduation assessment.
2) Students on leave of absence who fulfill graduation credit requirements during the seasonal semester are not eligible for graduation. Students must be enrolled in a regular semester to graduate. In other words, students on leave during the 2026-1 semester are not eligible for August 2026 graduation even if they complete graduation credits during the 2026 Summer Seasonal Semester
3) Students serving in the military cannot take face-to-face lectures. However, if the discharge date is before the start of the seasonal semester, the student can apply for and take the seasonal classes. In addition, if the student's unreturned discharge date is in the seasonal semester, the Ministry of National Defense may order the student to return to force, and the disadvantage is the student's responsibility.
※ According to the Military Manpower Administration’s service regulations, Social Service Agents(사회복무요원) are prohibited from attending school during their service period. Please verify this information carefully and decide whether to enroll accordingly. (https://www.mma.go.kr/contents.do?mc=mma0000911&mc1=usr0000179&num=7)
3. Course Enrollment Method
1) Course enrollment for Sinchon (International) Campus: Access the Academic Portal System (http://portal.yonsei.ac.kr) and select "Undergraduate Course Enrollment"
2) There are quotas for seasonal classes.
3) Seasonal classes can also be taken at domestic credit exchange universities. (Refer to the notice on the Domestic University Exchange Program under Homepage > Academic Support > Curriculum.)
4. Course Offerings
1) Courses can be searched via the Course Catalog menu in the Yonsei Portal System.
※ How to check the course catalog: Academic Portal System > Undergraduate/Graduate Course Catalog
- Select 2026, summer semester from "Year/Semester" and click search
2) Courses with fewer than 20 enrolled students are subject to cancellation. As a result of the course enrollment, the first and second closing classes will be confirmed, which will be noticed on the university website. There may be additional closure as a result of tuition payment.
5. Tuition
1) (Tuition per credit × number of credits) + experiment and practice fees
- Tuition per credit: 106,700 WON
- Experiment and practice fees: 20,000 won for physics, chemistry, and biology / 10,000 won for mathematics, statistics and computing subjects
2) Separate tuition (30,000 won) is applied to the field training courses.
3) Separate tuition is applied to the specific field training courses.
6. Credit Application and Accreditation
1) Course credit: Up to 7 credits, and up to 6 for online lectures. However, those students who took Online courses for military personnel during the previous regular semester can take up to 7 credits including military courses.
2) Credit accreditation and rating conversion: Subjects and grades completed in a seasonal semester are also reflected in the graduation credits and average. However, for those who entered before the 2003 school year, acquisition credits are recognized only and not included in the average.
7. Course Cancellation
1) If you are unable to study after registration for seasonal classes, you may request cancellation of the class by July 7, 2026 (Tue), 23:59, which is before 1/2 of the total number of class days.
2) Course cancellation procedure
- You can cancel the course at the Academic Portal. Submit a course cancellation request form(attached file) to yshaksa@yonsei.ac.kr only if it is impossible to cancel the course at the portal.
※ Students in medicine, dentistry, or nursing who take courses offered by colleges affiliated with the YUHS are requested to submit a refund request form to their respective college.
- Please make sure that your bank account registered on the academic portal is correct.
- However, domestic university credit exchange students(Other university→Yonsei) must submit a cancellation request to the Academic Support Team by 15:00 on the cancellation date.
Submit to: yonseiex@yonsei.ac.kr
3) Refund Policy
4) There is no withdrawal for seasonal classes.
8. Seasonal Semester Information for International Students
1) International students currently on a leave of absence who are required to obtaion a student visa (D-2) are not eligible to take seasonal semseter courses. If such students are found to have registered, their enrollment may be cancelled.
2) However, international students holding a visa other than a student visa may take seasonal semester courses even while on leave of absence.
3) For visa-related inquiries, please contact the Global One-Stop Service Center at the Office of International Affairs: ivisa@yonsei.ac.kr
9. Notes
1) Students in the University College (Hakbu Daehak) who have not yet been assigned a major may take seasonal semester courses, and credits earned will be recognized. Grades will be included in GPA calculations upon major approval. (If retaking a course, the retake will be processed; however, the grade used for major approval assessment will be based on the grade prior to the retake.)
2) Re-taking: since it is only possible to re-take the subjects that the student's final grades are recorded, so re-taking the courses that had been taken in the previous regular semester is not possible.
3) If the tuition is not paid during the registration period, the entire course registration details will be automatically deleted.
4) The student who has applied for 2 subjects cannot pay only the amount for the 1 subject for the purpose of canceling another subject. You should first pay the tuition for all the enrolled courses, then cancel a subject. Refer to the 7. Canceling Courses above for how to cancel the course.
5) Seasonal classes can only be taken on only one campus among the Sinchon (International) Campus, Mirae Campus, or a credit exchange university. All duplicated applications will be invalidated.
6) Yonsei students may take YISS courses; however, some courses may have enrollment restrictions. Separate academic schedules, regulations, and tuition apply to YISS courses. Please refer to the attached '2026 International Summer School Course Guide' for details. Inquiries should be directed to the International Affairs Team at 02-2123-3535.
7) Students participating in overseas dispatch programs organized by the Office of International Affairs or studying abroad under academic exchange/training programs administered by the Academic Affairs Office during the seasonal semester are not allowed to take seasonal courses at the university.
For any further inquiries, please contact the Academic Support Team (yshaksa@yonsei.ac.kr / 02-2123-2090).
Academic Support Team