| Schedule | Semester 1 | Semester 2 | Summer Session | 
|---|---|---|---|
| Students must check the updated courses and sections from “Course Section” are available at registration.bu.ac.th for Registration Next Semester. | Starting from July 16, 2026 | Starting from | Starting from | 
| Pre - registration Online : Set Menu Group Online Registration/Individual Online Registration | July 21 - 23, 2026 Time: 9.30 - 16.00 hrs. | November 10 - 13, 16 Time: 9.30 - 16.00 hrs. | - | 
| ONLINE Registration for Transferred Students/Students who changed Major and School/Students on Probation/Reinstated Students/Second Degree Students (Except for students admitted in their first semester) | July 24, 27, 2026 Time: 9.30 - 16.00 hrs | November 17 - 18, 2026 Time: 9.30 - 16.00 hrs | May 11 - 12, 2027 Time: 9.30 - 16.00 hrs | 
| Pre - registration Online : Course/Section Group Online Registration/Individual Online Registration | July 30 - 31, August 3, 2026 Time: 9.30 - 16.00 hrs. | November 19 - 20, 23, 2026 Time: 9.30 - 16.00 hrs. | May 13 - 14, 17, 2027 Time: 9.30 - 16.00 hrs. Individual Online Registration Only | 
| Adding Online For students who have registered online and paid for registration (Adding courses only) | August 4, 2026 | November 24, 2026 | May 18, 2027 | 
| For students of all years of study who have not registered online | August 4, 2026 | November 24, 2026 | May 18, 2027 | 
| Payment for Registration | August 7, 2026 | December 4, 2026 | May 29, 2027 | 
| 1st Round of Late Registration (Before the First Day of the | August 11, 2026 Time: 12.30 - 16.00 hrs. August 13, 2026 Time: 9.30 - 16.00 hrs. | January 6, 2027 Time: 12.30 - 16.00 hrs. January 7, 2027 Time: 9.30 - 16.00 hrs. | June 2, 2027 Time: 12.30 - 16.00 hrs. June 4, 2027 Time: 9.30 - 16.00 hrs. | 
| 1st Round of Adding/Dropping Period (Before the First Day of the Semester) For students who registered Online and paid for registration | August 11, 13, 2026 Time: 9.30 - 16.00 hrs. | January 6 - 7, 2027 Time: 9.30 - 16.00 hrs. | June 2, 4, 2027 Time: 9.30 - 16.00 hrs. | 
| First Day of the Semester | August 17, 2026 | January 11, 2027 | June 7, 2027 | 
| 2nd Round of Adding/Dropping Period | August 19 - 20, 2026 Time: 9.30 - 16.00 hrs. | January 13 - 14, 2027 Time: 9.30 - 16.00 hrs. | June 9 - 10, 2027 Time: 9.30 - 16.00 hrs. | 
| 2nd Round of Late Registration (Late Fee Applied) | August 19 - 20, 2026 Time: 9.30 - 16.00 hrs. | January 13 - 14, 2027 Time: 9.30 - 16.00 hrs. | June 9 - 10, 2027 Time: 9.30 - 16.00 hrs. | 
| Final Day of Notification of Academic Leave | September 15, 2026 | February 9, 2027 | - | 
| Filing for Graduation (For students who are expecting to graduate) | August 17 - December 4, 2026 | January 11 - May 15, 2027 | June 7 - July 31, 2027 | 
| School/Department Transfer Period | September 14 - 18, 2026 | February 8 - 12, 2027 | June 7 - 11, 2027 | 
| Withdrawal Online Period | September 7 - December 4, 2026 | February 1 - May 15, 2027 | June 21 - July 31, 2027 | 
| Semester Break Start | December 5, 2026 | May 16, 2027 | August 1, 2027 | 
Students must check the updated courses and sections
from “Course Section” are available at registration.bu.ac.th
for Registration Next Semester.
| Semester 1 | Semester 2 | Summer Session | 
|---|---|---|
| Starting from July 16, 2026 | Starting from | Starting from | 
Pre - registration Online : Set Menu
Group Online Registration/Individual Online Registration
| Semester 1 | Semester 2 | Summer Session | 
|---|---|---|
| July 21 - 23, 2026 Time: 9.30 - 16.00 hrs. | November 10 - 13, 16 Time: 9.30 - 16.00 hrs. | - | 
ONLINE Registration for Transferred Students/Students who
changed Major and School/Students on Probation/Reinstated Students/Second Degree Students
(Except for students admitted in their first semester)
| Semester 1 | Semester 2 | Summer Session | 
|---|---|---|
| July 24, 27, 2026 Time: 9.30 - 16.00 hrs | November 17 - 18, 2026 Time: 9.30 - 16.00 hrs | May 11 - 12, 2027 Time: 9.30 - 16.00 hrs | 
Pre - registration Online : Course/Section
Group Online Registration/Individual Online Registration
| Semester 1 | Semester 2 | Summer Session | 
|---|---|---|
| July 30 - 31, August 3, 2026 Time: 9.30 - 16.00 hrs. | November 19 - 20, 23, 2026 Time: 9.30 - 16.00 hrs. | May 13 - 14, 17, 2027 Time: 9.30 - 16.00 hrs. Individual Online Registration Only | 
Adding Online
For students who have registered online and paid for
registration (Adding courses only)
| Semester 1 | Semester 2 | Summer Session | 
|---|---|---|
| August 4, 2026 | November 24, 2026 | May 18, 2027 | 
For students of all years of study who have not registered
online
| Semester 1 | Semester 2 | Summer Session | 
|---|---|---|
| August 4, 2026 | November 24, 2026 | May 18, 2027 | 
Payment for Registration
| Semester 1 | Semester 2 | Summer Session | 
|---|---|---|
| August 7, 2026 | December 4, 2026 | May 29, 2027 | 
1st Round of Late Registration (Before the First Day of the
Semester)
For students who did NOT register online or registered online
but did not pay the registration fee
| Semester 1 | Semester 2 | Summer Session | 
|---|---|---|
| August 11, 2026 Time: 12.30 - 16.00 hrs. August 13, 2026 Time: 9.30 - 16.00 hrs. | January 6, 2027 Time: 12.30 - 16.00 hrs. January 7, 2027 Time: 9.30 - 16.00 hrs. | June 2, 2027 Time: 12.30 - 16.00 hrs. June 4, 2027 Time: 9.30 - 16.00 hrs. | 
1st Round of Adding/Dropping Period (Before the First Day of the Semester)
For students who registered Online and paid for registration
| Semester 1 | Semester 2 | Summer Session | 
|---|---|---|
| August 11, 13, 2026 Time: 9.30 - 16.00 hrs. | January 6 - 7, 2027 Time: 9.30 - 16.00 hrs. | June 2, 4, 2027 Time: 9.30 - 16.00 hrs. | 
First Day of the Semester
| Semester 1 | Semester 2 | Summer Session | 
|---|---|---|
| August 17, 2026 | January 11, 2027 | June 7, 2027 | 
2nd Round of Adding/Dropping Period
For students who registered Online and paid for registration
| Semester 1 | Semester 2 | Summer Session | 
|---|---|---|
| August 19 - 20, 2026 Time: 9.30 - 16.00 hrs. | January 13 - 14, 2027 Time: 9.30 - 16.00 hrs. | June 9 - 10, 2027 Time: 9.30 - 16.00 hrs. | 
2nd Round of Late Registration (Late Fee Applied)
For students who did NOT register online or registered online
but did not pay the registration fee
| Semester 1 | Semester 2 | Summer Session | 
|---|---|---|
| August 19 - 20, 2026 Time: 9.30 - 16.00 hrs. | January 13 - 14, 2027 Time: 9.30 - 16.00 hrs. | June 9 - 10, 2027 Time: 9.30 - 16.00 hrs. | 
Final Day of Notification of Academic Leave
(For students who did not register or registered online but
did not pay the registration fee)
| Semester 1 | Semester 2 | Summer Session | 
|---|---|---|
| September 15, 2026 | February 9, 2027 | - | 
Filing for Graduation
(For students who are expecting to graduate)
| Semester 1 | Semester 2 | Summer Session | 
|---|---|---|
| August 17 - December 4, 2026 | January 11 - May 15, 2027 | June 7 - July 31, 2027 | 
School/Department Transfer Period
| Semester 1 | Semester 2 | Summer Session | 
|---|---|---|
| September 14 - 18, 2026 | February 8 - 12, 2027 | June 7 - 11, 2027 | 
Withdrawal Online Period
| Semester 1 | Semester 2 | Summer Session | 
|---|---|---|
| September 7 - December 4, 2026 | February 1 - May 15, 2027 | June 21 - July 31, 2027 | 
Semester Break Start
| Semester 1 | Semester 2 | Summer Session | 
|---|---|---|
| December 5, 2026 | May 16, 2027 | August 1, 2027 |