Why join for free?
Already have an account? Log In
Thailand, Bangkok
Let the school know you're thinking of applying — they can share their prerequisites and help you through the process.
It's best to ask — circumstances can change at any time.
1. Submit Application and Fee
Parents complete the TRIS Application for Admission and pay a non-refundable application fee. The application must be accompanied by required documents, including a recent medical report, immunisation record, and the student’s most recent school report.
2. Take Placement Test
Applicants aged six or older take a placement test. Students with low scores in English are required to join the ESL program.
3. Confirm Acceptance and Pay Fees
Once accepted, families must pay one-time entry fees and annual fees. Additional costs may apply for ESL, graduation, and parent council membership.
4. Collect Registration Package
Families receive a package with key information, school calendar, timetable, request forms (e.g., transport, lockers, online access), and the Student/Parent Handbook. This package also includes teacher contact details and school layout maps.
The school operates an open admissions policy, meaning students can enrol at any time during the school year if places are available. There is no publicly stated waitlist or pool system.
The school does not publicly disclose information about scholarships or financial aid in the provided admissions materials.
Trinity International School (TRIS), established in 2003 and located at 30 Sukhumvit Soi 36 in Bangkok’s residential Sukhumvit district, serves around 450 students aged 3 to 18. The school follows an American Curriculum based on California's Common Core, with the option to pursue Advanced Placement (AP) courses in upper grades. English is the language of instruction, and the school also teaches Thai and Mandarin. TRIS operates a school bus service, enhancing access from nearby neighbourhoods. The school is licensed by the Thai Ministry of Education and accredited by WASC and ONESQA. Notable strengths include emphasis on STEM (including a UC Berkeley partnership), academic enrichment through AP offerings, and a strong orientation toward service, rooted in values education.
Get answers to parents’ top questions about schooling in Thailand, from academic options to extracurricular opportunities.
An expert-curated list of leading Bangkok international schools, with quick facts to help narrow your shortlist.
Phuket is known for its beaches and tourism, but it’s also home to a growing international school scene that appeals to expat families looking for an alternative to Bangkok.
