English-Taught International Programs at Thai Universities: Cost and Admission vs Thai-Track Programs

What "International" Means at a Thai University

Most large Thai universities run two parallel tracks in the same faculty: a Thai-medium program taught in Thai, and an English-medium "international" or "Inter" program teaching the identical subject in English. Mahidol University International College (MUIC), Chulalongkorn's international programs run through faculty-level admissions offices, and Thammasat's BBA International Program at Thammasat Business School are established examples. Both tracks award a real Thai degree from the same university. The difference sits in language of instruction, tuition, and admission process.

Other well-known international tracks include Kasetsart University's international programs and King Mongkut's University of Technology Thonburi's international engineering programs, each running its own admission office separate from the Thai-medium faculty next door.

Tuition: the Clearest Difference

Thai-medium bachelor's programs at public universities carry government-subsidized fees. International programs run as self-funded tracks with a separate fee schedule set by the faculty or college, and that fee sits several times above the Thai-medium rate at the same university. Pull the specific program's current fee schedule directly from its admissions office before applying, since inter-program tuition varies widely by faculty. Business and engineering programs typically price higher than humanities or social science tracks.

Admission Process: Separate From (or Alongside) TCAS

Thai-track bachelor's admission runs through TCAS: Portfolio, Quota, Admission, and Direct Admission rounds using national test scores (TGAT, TPAT, A-Level) and grades. International programs largely set their own process. Chulalongkorn's international undergraduate programs, for example, ran an Early Admission round from November 25 to December 25, 2024, and a Regular Admission round from February 26 to March 26, 2025 for the 2025 intake, timelines separate from the standard TCAS calendar, though foreign-diploma applicants still needed to register in TCAS and obtain an Equivalence Certificate first.

Required documents typically include high school transcripts, an English proficiency score, a personal statement or portfolio, and an interview. Some faculties add subject-specific tests, such as a math or science paper, or a portfolio review for design and architecture programs.

English Score Requirements Replace National Test Scores

Where Thai-track admission weighs ONET, GAT, PAT, or the newer TGAT/TPAT and A-Level scores, international programs weigh an English proficiency score as the main gate, alongside GPA and, in some programs, SAT scores. MUIC asks for IELTS Academic overall 6.0 (writing 6.0) or TOEFL iBT overall 69 (writing 22) . Thammasat's BBA International Program asks for TOEFL iBT 80, IELTS overall 6.0 with at least 5.5 per section, or TU-GET 550 paper-based , plus a minimum SAT score of 1,280 combined Math and Evidence-Based Reading and Writing. Chulalongkorn sets no single university-wide score. Each of its 19 international undergraduate programs publishes its own requirement, so check the specific program page instead of assuming one Chula-wide cutoff.

Teaching Format and Class Size

International programs generally run smaller cohorts than the Thai-medium track in the same faculty, and courses lean toward discussion, group projects, and presentations delivered in English, matching a Western-style seminar format more than a large lecture hall. Thai-medium programs at the same public university often keep larger lecture sections for shared general-education subjects in the first two years, with smaller seminar-style classes appearing later in the degree. Students weighing the two tracks should factor in learning style, not only cost and language, since a student who thrives in smaller discussion-based classes often finds the international-program format a better academic fit even before considering the price difference.

Who the Classroom Mix Looks Like

Thai-track classrooms are almost entirely Thai students who came through TCAS. International-program classrooms mix Thai students who chose the English track, often for the international exposure or because they attended an international or bilingual school, with foreign students, including a large share from other ASEAN countries. Class sizes in inter programs also run smaller in many faculties, since these tracks admit fewer students per cohort than the Thai-medium equivalent.

Credit Transfer and What Comes After Graduation

Both tracks award a degree from the same university and the same recognized qualification, so a Thai-medium and an international-program graduate hold equal standing for further study or licensing exams that require a specific degree. The practical difference shows up in language readiness: international-program graduates finish with stronger English writing and presentation skills, useful for graduate study abroad or an employer that operates in English, while Thai-medium graduates finish with deeper Thai academic vocabulary in their field, useful for roles working directly with Thai government agencies, courts, or Thai-language technical documentation.

Credits between the two tracks at the same university rarely transfer directly, since course content, even when equivalent in topic, runs in a different language and often a different syllabus. Switching tracks mid-degree usually means a fresh application to the other track rather than a simple internal transfer.

Deciding Which Track to Apply To

• Budget for several times the Thai-medium tuition if you choose an international program, and confirm the exact figure with the admissions office before applying.

• Take IELTS or TOEFL early. Score reports typically stay valid two years, and programs will not process an application without one on file.

• Track each program's own deadline separately from TCAS dates. International program rounds do not always follow the national TCAS calendar.

• If you plan to study in Thai after arriving, the Thai-medium route stays far cheaper, provided your Thai reading and writing level supports university-level coursework.