How to Get Into University in Thailand: Requirements, Exams and Deadlines
By Muntasir Minhaz • Published Aug 07, 2026 • Study in Southeast Asia
Domestic admission to Thai universities runs through TCAS at mytcas.com, in four rounds: Portfolio, Quota, Admission and Direct Admission. Each round weighs a different mix of GPAX, portfolio and TGAT/TPAT aptitude scores, and dates shift every cycle.
🎓 4 TCAS rounds: Portfolio, Quota, Admission, Direct Admission
GPAX comes from 6 semesters of Mattayom 4-6 (upper secondary school)
TGAT tests general aptitude, TPAT tests subject or professional aptitude
⏱️ Round 3 (Admission) for 2026 intake ran 6-12 May 2026 at one faculty, confirm exact dates every year
📩 All applications go through mytcas.com, not individual university websites
The TCAS system: what it is and who uses it
TCAS (Thailand Central Admission System) is the national portal Thai upper-secondary students use to apply to public and most private universities. The Council of University Presidents of Thailand manages it at mytcas.com , replacing the older separate entrance-exam and direct-admission systems that ran before TCAS launched. You register once on the portal and apply to programs across different rounds through the same account, rather than filing separate applications to each university.
The four TCAS rounds
| Round | What it weighs | Typical shape |
|---|---|---|
| 1. Portfolio | Portfolio, grades, sometimes an interview | No centralized exam score required, runs earliest in the cycle |
| 2. Quota | Regional or school quotas plus TGAT/TPAT scores | Reserved seats tied to a region, school network or program partnership |
| 3. Admission | GPAX plus TGAT/TPAT scores, ranked nationally | The largest round by seat count, open to all eligible applicants |
| 4. Direct Admission | Criteria set by the individual university | Fills remaining seats after the first three rounds close |
Selective programs sometimes appear only in the earlier rounds and close their quota before Round 3 opens, so check each program's own TCAS listing for which rounds it runs in rather than assuming every program is open all the way through Round 4.
Entry requirements: GPAX, TGAT and TPAT
GPAX is your cumulative GPA across six semesters of Mattayom 4 to 6 (grades 10 to 12), on Thailand's 4.0 scale. Each program sets its own minimum GPAX and the cutoff varies widely by faculty and university, so check the specific program's TCAS listing for its number rather than assuming a single threshold applies system-wide.
TGAT (Thai General Aptitude Test) covers English communication, critical thinking and problem solving, and personal development potential. TPAT (Thai Professional Aptitude Test) covers subject-specific tracks, including health sciences, arts, engineering, architecture and teaching, depending on which TPAT paper a program requires. Together these replaced the older GAT/PAT exam names in recent admission cycles, so if you see references to GAT/PAT in older materials, treat TGAT/TPAT as the current version.
Selective programs add extra steps
Medicine, dentistry, pharmacy, veterinary science and some engineering and architecture programs layer extra screening on top of standard TCAS scores: subject-specific entrance tests, structured interviews, aptitude assessments or a higher GPAX floor than general programs use. Start checking these faculties' requirements early in the cycle, since their quotas often fill in Round 1 or Round 2 before Round 3 even opens.
Deadlines and how to track them
TCAS dates shift every admission cycle, and sometimes mid-cycle for reasons outside any student's control. In 2026, TGAT/TPAT exam sittings at seven test centers near the Thai-Cambodian border (Surin, Buri Ram, Si Sa Ket, Ubon Ratchathani, Trat, Sa Kaeo and Chanthaburi) were postponed to 17-19 January 2026 over safety concerns, according to The Nation Thailand . As one example of how tight Round 3 windows run, Mahidol University's Faculty of ICT listed its 2026 academic year Round 3 (Admission) application period as 6 to 12 May 2026, according to the faculty's admission page . Confirm the current cycle's exact dates directly on mytcas.com rather than relying on a previous year's calendar, since every round shifts by weeks from cycle to cycle.
Documents you need to register
Set up your mytcas.com account with a recent photo (plain white or blue background, taken within the last 6 months) and your national ID number. Each round you apply to typically asks for a certified copy of your high school transcript or GPAX certificate, a certified copy of your student certificate or high school equivalence certificate, and an English proficiency test score where the program requires one. Most rounds also charge a processing fee through the portal. Keep digital copies of every certified document ready before the application window opens, since upload windows for some rounds run only a few days.
After you receive an offer
Once a round confirms your seat, TCAS locks you into that program and you clear it before applying to a later round in the same cycle, so confirm you want the offer before confirming it on the portal. Selective programs, including medicine and other health science fields, often add a mandatory health screening or additional document check after conditional acceptance, before final enrollment. Missing a confirmation deadline after being offered a seat forfeits your place, so track your mytcas.com account actively during results periods rather than waiting on an email notification alone.
Applying to English-medium or international programs
International Programs, often labeled "Inter" or "English Program" in university listings, frequently run separate application tracks outside TCAS, open on a rolling basis and reviewed directly by the faculty's international office. This route suits students coming from an international curriculum (IGCSE, A-Level, IB) rather than a standard Thai GPAX. Confirm with the specific faculty whether it uses TCAS, its own direct route, or both, since some programs run parallel tracks.