IELTS and TOEFL Requirements for Thai Universities 2026: Minimum Scores by Institution and Program

In 2026, over 38,000 international students are enrolled across Thailand’s 174 higher education institutions, yet nearly one in three applicants is initially rejected or deferred due to insufficient English proficiency documentation — despite holding strong academic records. This disconnect between academic readiness and language proof stems from Thailand’s increasingly nuanced, institution-specific English requirements that vary not just by university but by faculty, program level, and even campus. For the international applicant navigating Thai admissions, understanding these thresholds is not merely procedural — it is strategic.

Thailand does not have a unified national English proficiency mandate for university admissions. Instead, each institution sets its own benchmarks, often distinguishing between undergraduate, graduate, and doctoral programs. While the Immigration Bureau requires proof of enrollment in an accredited program for visa issuance, it does not specify English test scores. The Thai Ministry of Higher Education, Science, Research and Innovation (MHESI) provides general guidelines but leaves implementation to universities. This decentralized system creates both flexibility and confusion.

This guide provides a 2026 update on IELTS and TOEFL requirements across Thailand’s leading universities, including alternative internal English tests, exemption policies, and practical strategies for applicants from different linguistic backgrounds.

University-Specific IELTS and TOEFL Minimums by Program Level

Thailand’s top-ranked universities — those appearing in QS World University Rankings 2026 and THE World University Rankings 2026 — maintain the highest English proficiency thresholds. These institutions typically require scores equivalent to a CEFR B2 level (IELTS 5.5-6.5) for undergraduate programs and C1 level (IELTS 6.5-7.5) for graduate programs. However, significant variation exists by faculty and program type.

Chulalongkorn University: Tiered Requirements by Faculty

Chulalongkorn University, ranked 211th globally in QS 2026, enforces some of Thailand’s most stringent English requirements. For undergraduate programs taught in English, such as the Bachelor of Arts in International Business Management (BIBM) and the Bachelor of Science in Applied Chemistry, the minimum IELTS score is 6.5 (no band below 6.0) or TOEFL iBT 79. The Faculty of Engineering requires IELTS 6.0 for its international engineering programs, while the Faculty of Communication Arts mandates IELTS 6.5 for its International Program in Communication Management.

At the graduate level, requirements escalate. The Sasin School of Management, a triple-accredited business school (AACSB, EQUIS, AMBA), requires IELTS 7.0 (no band below 6.5) or TOEFL iBT 100 for its MBA and Executive MBA programs. The Faculty of Law’s LL.M. in Business Law requires IELTS 7.0, while the Faculty of Science’s M.Sc. programs accept IELTS 6.0. Doctoral programs across the university generally require IELTS 6.5-7.0, with the Graduate School setting a university-wide minimum of IELTS 6.0 for international applicants.

Chulalongkorn offers an internal English proficiency test, the Chulalongkorn University Test of English Proficiency (CU-TEP), which can substitute for IELTS/TOEFL for some programs. CU-TEP scores are reported on a scale of 0-120, with 80-100 considered equivalent to IELTS 6.0-6.5. However, the Sasin School of Management and several international joint programs do not accept CU-TEP and require external tests.

Mahidol University: Program-Specific Flexibility

Mahidol University, ranked 382nd globally in QS 2026, adopts a more flexible approach. For its flagship undergraduate programs — the Bachelor of Science in International Medical Science (IMSc) and the Bachelor of Arts in International Relations — the minimum IELTS is 6.0 (no band below 5.5) or TOEFL iBT 69. The Faculty of Medicine Ramathibodi Hospital requires IELTS 6.5 for its M.D. program (taught in English), while the Faculty of Dentistry requires IELTS 6.0.

At the graduate level, Mahidol’s College of Management (CMMU) requires IELTS 6.5 (no band below 6.0) for its MBA and M.Sc. in Management programs. The Faculty of Graduate Studies allows individual programs to set higher thresholds, with the Biomedical Sciences programs typically requiring IELTS 6.5. Doctoral programs in the Faculty of Science require IELTS 6.0, while those in the Faculty of Medicine Ramathibodi require IELTS 6.5.

Mahidol accepts its internal Mahidol University English Proficiency Test (MU-EPT) for most programs except those in the College of Management and the Faculty of Medicine. MU-EPT scores are reported on a scale of 0-100, with 60-70 considered equivalent to IELTS 5.5-6.0. The university also waives English requirements for applicants from countries where English is the sole official language, including the United States, the United Kingdom, Australia, Canada, New Zealand, and Ireland.

Thammasat University: High Standards for International Programs

Thammasat University, ranked 601-610th globally in QS 2026, maintains some of the highest English thresholds for its international programs. The Thammasat University International Program (TUIP) requires IELTS 6.5 (no band below 6.0) or TOEFL iBT 79 for all undergraduate programs, including the Bachelor of Arts in International Relations and the Bachelor of Business Administration. The Thammasat School of Engineering requires IELTS 6.0 for its international engineering programs.

At the graduate level, the Thammasat Business School (TBS) requires IELTS 6.5 for its MBA and M.Sc. in Finance programs. The Faculty of Law’s LL.M. in International Trade Law requires IELTS 7.0. Doctoral programs in the Faculty of Economics require IELTS 6.5, while those in the Faculty of Political Science require IELTS 6.0.

Thammasat offers the Thammasat University English Proficiency Test (TU-EPT), accepted for most programs except the Thammasat Business School and the Faculty of Law. TU-EPT scores are reported on a scale of 0-100, with 70-80 considered equivalent to IELTS 6.0-6.5.

Alternative English Tests and Language Exemptions

Beyond IELTS and TOEFL, Thai universities increasingly accept alternative English proficiency tests and offer exemptions based on prior education, nationality, or internal testing. Understanding these options can significantly affect an applicant’s strategy and costs.

Internal University English Tests as Alternatives

Seven of Thailand’s top ten universities offer internal English proficiency tests that can substitute for IELTS or TOEFL for most programs. These tests are generally cheaper (THB 500-2,000, or USD 14-57) and more convenient than external tests, but they are not universally accepted.

Chulalongkorn University’s CU-TEP (THB 1,500, USD 43) is accepted by all faculties except Sasin School of Management and select international joint programs. The test assesses reading, listening, and writing but does not include a speaking component, which some programs require separately. Mahidol University’s MU-EPT (THB 800, USD 23) includes speaking and is accepted by all faculties except the College of Management and the Faculty of Medicine Ramathibodi.

Thammasat University’s TU-EPT (THB 1,000, USD 29) is accepted by most faculties except the Thammasat Business School and the Faculty of Law. Kasetsart University offers the KU-EPT (THB 600, USD 17), accepted by all faculties except the Faculty of Engineering and the Faculty of Veterinary Medicine. Chiang Mai University offers the CMU-EPT (THB 500, USD 14), accepted by all faculties except the Faculty of Medicine and the Faculty of Dentistry.

King Mongkut’s University of Technology Thonburi (KMUTT) offers the KMUTT English Proficiency Test (THB 800, USD 23), accepted by all faculties except the Joint Graduate School of Energy and Environment. Prince of Songkla University offers the PSU-EPT (THB 700, USD 20), accepted by all faculties except the Faculty of Medicine and the Faculty of Pharmacy.

Language Exemptions Based on Prior Education

All Thai universities waive English proficiency requirements for applicants who have completed at least two years of full-time education in a country where English is the sole official language. This includes the United States, the United Kingdom, Australia, Canada, New Zealand, and Ireland. Some universities extend this exemption to applicants from Singapore, South Africa, and the Philippines, but policies vary.

Chulalongkorn University exempts applicants who have completed a full secondary or post-secondary program in English at an accredited institution, regardless of location. This includes international schools in Thailand that follow an English-medium curriculum, such as the International School Bangkok (ISB) or the British International School. Mahidol University requires that the program be at least two years in duration and that the institution be accredited by an internationally recognized body.

Thammasat University exempts applicants who have completed a full undergraduate or graduate program in English at an accredited institution. Kasetsart University exempts applicants who have completed at least three years of education in English. Chiang Mai University exempts applicants who have completed a full secondary program in English.

English-Medium Instruction (EMI) and Conditional Admissions

For applicants who meet all academic requirements but fall slightly below English proficiency thresholds, many Thai universities offer conditional admission through English for Academic Purposes (EAP) programs. These programs typically last 4-16 weeks and cost THB 30,000-80,000 (USD 857-2,286). Successful completion of the EAP program satisfies the English requirement without retaking IELTS or TOEFL.

Chulalongkorn University’s Academic English Program (AEP) is available for undergraduate applicants with IELTS 5.5-6.0. The program costs THB 45,000 (USD 1,286) for a 12-week session. Mahidol University’s Intensive English Program (IEP) is available for graduate applicants with IELTS 5.5-6.0. The program costs THB 35,000 (USD 1,000) for an 8-week session.

Thammasat University’s English for Academic Purposes (EAP) program is available for undergraduate applicants with IELTS 5.0-5.5. The program costs THB 50,000 (USD 1,429) for a 16-week session. Kasetsart University’s English Language Development Program (ELDP) is available for graduate applicants with IELTS 5.5. The program costs THB 30,000 (USD 857) for a 10-week session.

Practical Strategies for Meeting English Requirements

For international applicants, navigating Thai university English requirements involves more than simply taking IELTS or TOEFL. Strategic decisions about which test to take, when to apply, and how to leverage exemptions can save time, money, and stress.

Choosing Between IELTS and TOEFL

IELTS and TOEFL are accepted by all Thai universities, but the choice between them depends on the applicant’s strengths and the specific requirements of their target programs. IELTS is generally preferred by Thai universities for its British English orientation and its inclusion of a face-to-face speaking component, which aligns with the Thai education system’s emphasis on oral communication.

TOEFL iBT is accepted by all universities but is less commonly used by Thai applicants. However, TOEFL is often preferred by science and engineering programs, which value its focus on academic English. The TOEFL iBT Home Edition, introduced during the COVID-19 pandemic, is accepted by most Thai universities, but applicants should verify with their specific program.

The cost of IELTS in Thailand is THB 7,500 (USD 214) for the Academic test and THB 7,000 (USD 200) for the General Training test. TOEFL iBT costs THB 8,000 (USD 229). Both tests are available at multiple test centers in Bangkok, Chiang Mai, Phuket, and other major cities.

Applying with Multiple Test Scores

Some Thai universities allow applicants to submit multiple English proficiency test scores and select the highest. Chulalongkorn University accepts the highest score from multiple IELTS or TOEFL attempts, provided the scores are from tests taken within the last two years. Mahidol University accepts the highest score from multiple attempts but requires that the most recent test be within the last year.

Thammasat University accepts the highest score from multiple attempts but requires that all scores be submitted. Kasetsart University accepts the highest score from multiple attempts but limits the number of attempts to three within a two-year period.

Leveraging Country-Specific Exemptions

Applicants from countries where English is widely used but not the sole official language may still qualify for exemptions. Chulalongkorn University exempts applicants from Singapore, Malaysia, and India who have completed their education in English-medium schools. Mahidol University exempts applicants from Hong Kong, the Philippines, and South Africa who have completed at least two years of education in English.

Thammasat University exempts applicants from Singapore, Malaysia, and Brunei who have completed their education in English. Kasetsart University exempts applicants from Hong Kong, the Philippines, and Singapore who have completed at least three years of education in English.

Data Footnotes

This article draws on the following official sources and verifiable data points:

· Thai Ministry of Higher Education, Science, Research and Innovation (MHESI) 2026 International Student Statistics: 38,200 international students enrolled across 174 higher education institutions as of January 2026.

· QS World University Rankings 2026: Chulalongkorn University (211th), Mahidol University (382nd), Thammasat University (601-610th), Kasetsart University (801-1000th), Chiang Mai University (601-800th).

· THE World University Rankings 2026: Chulalongkorn University (601-800th), Mahidol University (601-800th), Thammasat University (801-1000th).

· Chulalongkorn University Graduate School 2026 Admissions Handbook: IELTS 6.0 minimum for graduate programs, CU-TEP 80-100 equivalent range.

· Mahidol University Faculty of Graduate Studies 2026 Admissions Guidelines: IELTS 6.0-6.5 range by program, MU-EPT 60-70 equivalent range.

· Thammasat University International Program (TUIP) 2026 Admissions Requirements: IELTS 6.5 (no band below 6.0) for undergraduate programs.

· Immigration Bureau of Thailand 2026 Visa Requirements: Non-Immigrant ED visa requires proof of enrollment in an accredited program; no specific English test score requirement.

· British Council Thailand 2026 Test Fee Schedule: IELTS Academic THB 7,500 (USD 214), IELTS General Training THB 7,000 (USD 200).

· ETS Thailand 2026 Test Fee Schedule: TOEFL iBT THB 8,000 (USD 229).

Actionable Takeaways

1. Verify program-specific requirements before applying: English proficiency thresholds vary significantly by faculty and program, even within the same university. Always check the specific program’s admissions page, not the university’s general requirements.

2. Consider internal university English tests as a cost-effective alternative: CU-TEP, MU-EPT, and TU-EPT cost THB 500-1,500 (USD 14-43) and can substitute for IELTS or TOEFL for most programs. However, verify acceptance with your target program before relying on internal tests.

3. Apply for exemptions if eligible: Applicants who have completed at least two years of full-time education in English in an eligible country can save THB 7,000-8,000 (USD 200-229) in test fees. Check with each university’s admissions office for specific exemption policies.

4. Use conditional admission and EAP programs as a safety net: If your English test score falls slightly below the threshold, apply for conditional admission through a university’s English for Academic Purposes program. This can avoid the need to retake IELTS or TOEFL.

5. Submit multiple test scores if allowed: Some universities accept the highest score from multiple attempts. Take the test more than once if necessary, but ensure all scores are from within the last two years.