According to the Thammasat International Program, the BIR Program has engaged in three application rounds.
Applications fit into the TCAS69 Calendar in which the successful applicants are required to confirm the right of enrollment via the myTCAS system.
** Please make sure that applicants have never confirmed the right of enrollment in TCAS (Clearing house system), before applying to the program.
Inter-Portfolio 1
- Application Period: Late October 2025
- Eligible for applicants studying in Grade 12 (M.6), or equivalent
- SAT/GSAT score is mandatory
- No minimum GPA
Inter-Portfolio 2
- Application Period: January 2026
- Eligible for applicants studying in Mathayom 6
- Minimum GPA of 3.75
- Portfolio with eligible criteria
TCAS Round 3: Admission
- Application Period: May 2026
- BIR Written Examination
- Apply for the exam: February 2026
- Submit the documents: February - March 2026
- Exam date: TBA
- Minimum GPA of 2.80, or equivalent
- Vaild English Proficiency Test Score
Useful Links
For Applicants residing outside Thailand, please see International Applicants.
High School Equivalence Certificate, and GPAX Equivalence Certificate issued by HSCES.