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Montessori Academy Bangkok International School

Thailand, Bangkok

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· Reviewed by · B2C Marketing Manager

Independently researched by doris.
Not yet claimed by the school
The school at a glance
Instructs in English, Mandarin, Thai
Fees THB 410,000 - 600,000
Ages 2 - 18 years
Type Co-educational, Co-educational (boarding)
Opened 2010
Bus Service No
Availability Not shared by this school
Academic offering
Curriculum Montessori Curriculum, American Curriculum, Advanced Placement (AP), Singapore Curriculum, Thai Curriculum
Taught languages English, Mandarin, Thai
Strengths STEM, Languages, Performing Arts
Clubs Academic and Intellectual, Arts and Creative, Cultural and Language
Stages Infant/Toddler Care, Early Years, Primary School, Elementary, Secondary School, High School
Introduction

Montessori Academy Bangkok International School (MABIS) is located at 1444 Debaratana Road, Bangna Tai, Bangna, Bangkok 10260. The school offers Montessori Curriculum, American Curriculum, Advanced Placement (AP), Singapore Curriculum and Thai Curriculum for students aged 2 to 18. It holds WASC accreditation and is licensed by the Thai Ministry of Education and ONESQA. The academic program centers on authentic Montessori education in a multilingual environment, with Toddler, Casa, Elementary and Secondary levels guided by Montessori pedagogy. MABIS began in 2010 as a nursery and was authorized to operate as an International School in 2011; in 2013 it launched Bangkok's first Montessori Elementary program. The campus emphasizes language development in English, Chinese and Thai, and provides English language support for non-native speakers. Notable features include a Middle School International Exchange Program with Wujiang Taihu International School and a broad range of ECAs in design, science, arts, music and sport. MABIS was shortlisted for the ASEAN School Awards 2026 in the Student Agency category.

www.montessoribkk.com

1444 Debaratana Road, Bangna Tai, Bangna, Bangkok, Thailand 10260

Vibes and Culture
The school has not added this information
The Essentials

Montessori Academy Bangkok International School has instruction in English, Mandarin, Thai.

Location
Bang Na district, Bangkok, Thailand. The campus address is 1444 Debaratana Road, Bang Na Tai, Bang Na, Bangkok 10260. Programs run from Toddler through Middle School.

Stages
Toddler; Casa; Elementary; Middle School

Additional learning support
EAL program provides English language support; enrollment is by invitation based on needs assessment; offered in small groups or individually (semester or full-year options). Languages taught include English, Chinese, and Thai.

Country affiliation
WASC accreditation; Thai Ministry of Education and ONESQA

School day structure
Toddler (Half Day) 8:00–12:00; Toddler (Full Day) 8:00–14:45; Casa 8:00–14:45; Elementary 7:30–15:00; Middle School 7:30–15:00

Bus service
Bus service is optional and has additional charges
Diving Deeper
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Fees

Annual tuition at Montessori Academy Bangkok International School ranges from THB 410,000 to THB 600,000 for 2026/27.

Application & Entrance Fees

- Application fee: Baht 4,000 (non‑refundable).
- Entrance (one‑time) fee for new students: Baht 120,000 (non‑refundable). A 25% discount on the entrance fee is applied for siblings of a concurrently enrolled student.

Tuition fees by program (per semester and per academic year)

- Toddler (Half Day, 08:00–12:00, ages 2–3): Semester Baht 205,000 · Academic year Baht 410,000.
- Toddler (Full Day, 08:00–14:45, ages 2–3): Semester Baht 225,000 · Academic year Baht 450,000.
- Casa (08:00–14:45, ages 3–6): Semester Baht 262,500 · Academic year Baht 525,000.
- Elementary (07:30–15:00, Grades 1–6): Semester Baht 285,000 · Academic year Baht 570,000.
- Middle School (07:30–15:00, Grades 7–9): Semester Baht 300,000 · Academic year Baht 600,000.
- High School: Tuition to be advised closer to the program start date.

Deposits and additional compulsory charges

- General Purpose Deposit (refundable subject to deductions): Toddler & Casa Baht 10,000 per academic year; Elementary Baht 40,000 per academic year; Middle School Baht 50,000 per academic year. The deposit is used to cover supplies, field trips, damaged/lost library books, costumes, etc.; unused portions are returned at the end of the school year.
- Accident insurance: Group accident insurance provided through the school (AIA). Relevant student/beneficiary information is submitted to the insurer.

Optional additional programmes and their charges

- EAL (English as an Additional Language) program (by invitation when recommended): Semester 1 Baht 30,000; Semester 2 Baht 33,750; Full academic year Baht 63,750. Semester 1 includes 40 classes and Semester 2 includes 45 classes; lessons are not refundable for missed classes except when the teacher is absent. More intensive (daily) EAL is available and will be pro‑rated.
- Extra‑curricular activities (ECA): Optional and charged separately.
- Bus service: Optional and charged separately.
- Computing equipment: Middle School students are required to purchase a computer for school and home use.
- Uniforms: Must be purchased by parents through the school shop.
- Late pick‑up fee: Applied when students are picked up after the regular class schedule.

Sibling discounts and returning‑student deposit

- Sibling tuition discount: 10% off tuition for the younger sibling(s) while two or more siblings are concurrently enrolled (applies to the academic year).
- Returning students: A non‑refundable seat deposit of Baht 20,000 is billed during the second semester and must be paid to guarantee placement for the following academic year.

Billing schedule and payment terms

- Tuition may be paid by semester or annually; there are two semesters per academic year. Tuition is not refundable once paid. Tuition must be paid in full prior to the child's first day of school for the respective semester or academic year, or by the invoice due date.
- Payment schedule (standard cycle): 1st payment for the semester August–December is due by mid‑July to early August; 2nd payment for the semester January–June is due by mid‑December. Late payment is charged at Baht 500 per day after the payment deadline. Tuition for students joining after a semester or year has started will be pro‑rated.

Refunds, withdrawal and late‑entry rules

- Refund policy: Once fees have been paid, no refund is provided for students leaving before the end of a semester or academic year.
- Withdrawal: Parents must complete and file a formal Withdrawal Form prior to the student's last day of attendance. Tuition for late entry is pro‑rated.

Boarding fees

- No boarding program or boarding fees are listed for the school; all schedules and fee items reference day programmes and associated day‑school services.

Payment methods and bank details

- Accepted payment forms: check, cash, or bank transfer. Payments must be made in Thai Baht. Make checks payable to “Montessori International (Thailand) Co., Ltd.”
- Bank transfer details (as provided for payments): Bangkok Bank, Bang Na Branch, Current Account No. 1303178113. Parents are asked to fax or email the bank payment slip to confirm payment (fax: 02 396 0363; email: finance@montessoribkk.com).

Other practical notes on fees

- Meals are included in the tuition.
- If additional funds are required beyond the General Purpose Deposit for trips, supplies, or damaged items, a separate invoice will be issued.

Brief note about the academic year of the published schedule

- The published, itemised tuition and fees schedule available from the school covers the academic year shown in the school's official tuition schedule. No separate, itemised public fee schedule explicitly labelled for the 2026/27 academic year was located on the school's publicly accessible materials; some independent school‑fee databases list 2026/27 totals derived from the school's published figures. For clarity on any changes for the 2026/27 academic year, contact the school's admissions or finance office directly.
Academics

Montessori Academy Bangkok International School teaches Montessori Curriculum, American Curriculum, Advanced Placement (AP), Singapore Curriculum, Thai Curriculum for students aged 2 to 18.

Curriculum
The school provides authentic Montessori education in a multilingual environment. Programs include Toddler, Casa, Elementary, and Secondary. Montessori pedagogy governs classroom learning across levels. The school started in 2010 as a nursery and was licensed by the Thai Ministry of Education to operate as an International School. In 2013, the school commenced the first Montessori Elementary program in Bangkok.
Wellbeing
The school has not added this information
Parent Experience
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Facilities
The school has not added this information
Extra-Curricular Activities
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Languages
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Reputation
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Admissions

Admissions
1. ENQUIRY: Fill out the enquiry form or call the school. The admissions team provides information about programs, timelines, and next steps. This initial contact begins the process of determining fit. 2. VISIT: Explore the campus and programs in person or online. Families meet staff and have an opportunity to see classrooms across Toddler, Casa, Elementary, and Secondary programs. The visit helps inform questions about fit and expectations. 3. APPLY: Submit the Application Form and fee. Application Forms & Brochures are available for download, including the Tuition and Age Criteria, and an E-Brochure is available online. This step centralizes the required documents and fees for consideration. 4. ASSESS: Students meet with teachers for an assessment. The assessment determines placement and readiness and may discuss language support as needed. Timing of the assessment is coordinated with enrollment timelines. 5. ENROLL: Admissions decision follows the assessment. For Toddler and Casa, enrollments occur on a rolling basis subject to space availability. For Elementary and Secondary, enrollments begin at the start of each semester.
School Events
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