International school fees · Bangkok · 2026-27
Singapore International School of Bangkok, Thonburi Campus fees 2026-27: 609,300 THB a year (£13,569)
Thonburi, Bangkok · ages 2 to 18 · Child-centred curriculum (Nursery-Kindergarten), Singapore Curriculum (Primary 1-6), UK Curriculum (Grade 7-12) · checked 29 October 2026
- Tuition, Grade 7609,300 THB
- Application fee, paid once5,000 THB
- Assessment fee, paid once5,000 THB
- Enrolment fee, paid once220,000 THB
- Education resources fee, Nursery 1-Kindergarten 2, compulsory, each year30,500 THB
- Education resources fee, Primary 1-6, compulsory, each year34,000 THB
- Education resources fee, Grade 7-8, compulsory, each year42,000 THB
- Education resources fee, Grade 9 and Grade 11, compulsory, each year63,000 THB
- Education resources fee, Grade 10 and Grade 12 (existing student), compulsory, each year21,000 THB
- Education resources fee, Grade 10 and Grade 12 (new student), compulsory, each year84,000 THB
- First year, not refundable1,113,800 THB
- Plus deposit, refundable50,000 THB £1,114
At the 12-month low of 41.876 this first year was £26,598. At the high of 45.194 it was £24,645.
Source: sisb.ac.th (page), the school’s own fee schedule. Checked 29 October 2026. Refundable deposits are shown separately and are not in the total. Optional extras, trips, transport and uniform are not in it either.
What a year costs here.
Singapore International School of Bangkok, Thonburi Campus charges 609,300 THB a year for Grade 7 in 2026-27: about £13,569 at 44.9 baht to the pound. Non-refundable one-off fees add 230,000 THB, plus 50,000 THB of refundable deposits, so the first year at this year group costs about 1,113,800 THB (£24,804). Figures are from the school's own fee schedule, checked 29 October 2026.
Singapore International School of Bangkok, Thonburi Campus is an international school in Thonburi, Bangkok, following the Child-centred curriculum (Nursery-Kindergarten), Singapore Curriculum (Primary 1-6), UK Curriculum (Grade 7-12), taking children aged 2 to 18. The figures on this page are the school's own published fees for 2026-27, converted to pounds at the mid-market rate on the day The Baht last rebuilt this page. Nothing here is an estimate: where the school does not publish a number, the line is left blank.
Rate used at build: 44.9 THB per GBP, Latest daily mid-market snapshot · 10 November 2026.
Tuition by year group.
Tap a row for the source and the sum.
Every row above is from the school's own fee schedule at sisb.ac.th (page), read on 29 October 2026. Nothing is estimated or taken from a third-party site.
One-off fees and deposits.
Same source and date as the tuition table: sisb.ac.th, checked 29 October 2026.
Recurring extras the school lists.
Source: sisb.ac.th, checked 29 October 2026. Amounts are per year as the school states them.
What the fee schedule says.
- Payment. Tuition payable termly in advance (three terms; two terms for Grades 10-12). 2% discount if a full academic year is paid at once. 1% per month penalty on late payment. Card payments carry surcharges (local card 1.5%, overseas card 3.0%, Alipay/WeChat 2.0%).
- Sibling discount on tuition: 5% for the second child, 10% for subsequent children. Tuition excludes uniform, sports wear and equipment, external examinations, IT devices, personal equipment, residential trips, some day trips, school bus, ECA, academy and enrichment classes. Optional English Learning Support: ELS1 20,000 and ELS2 30,000 THB per term. Snack and lunch is listed as an additional charge and is shown as non-compulsory here. Fees may change; all quoted in THB.
What it costs in pounds, and why that moves.
The school bills in baht. A British family paying from sterling income pays a different amount every term because GBP/THB moves. The same Grade 7 fee of 609,300 THB is:
| GBP/THB | Annual fee in pounds |
|---|---|
| 48 | £12,694 |
| 44.9 (today) | £13,569 |
| 42 | £14,507 |
Between a strong-pound year and a weak one the sterling cost of this school moves by about £1,813 a year per child. A family paying termly from a UK account at a high-street bank's 3 to 5 per cent spread adds £543 a year on top. Fee payments are the single largest transfer most expat families make, which is why the transfer method matters more here than anywhere else in the budget.
A termly 203,100 THB transfer at the mid-market rate costs a fraction of a bank's spread. Compare the GBP to THB quote before the first invoice.
Schools in Bangkok at a similar fee.
Source: each school’s own fee page; open a school for its source and checked date.
All Bangkok schools, cheapest first, with the median and range: international school fees in Bangkok. The national picture is on Thailand international school fees 2026-27: the statistics.
Report a figure, read the method.
What did you actually pay at Singapore International School of Bangkok, Thonburi Campus?
Published figures are the starting point; the real bill is what readers tell us. Reports are checked by hand before anything appears here, and no name or email is published.
Reading the fee schedule
- The hidden fees catalogue: the £30,000 to £70,000 your school will charge that is not in the tuition schedule.
- The fee inflation trap: how £18,000 in Year 1 becomes £32,000 by Year 13.
- The British family's decision framework for international schools in Asia.
- Where the £25,000 actually goes: the international school operating budget nobody publishes.
How The Baht records school fees
Every figure comes from the school's own website or fee document, recorded with its URL and the date it was checked. Figures are annual tuition as the school states them, in Thai baht, for the academic year shown. Where a school prints termly fees only, the annual figure is the termly fee multiplied by the number of terms and is marked as such. Refundable deposits are listed but excluded from first-year totals. Pound figures use the mid-market GBP/THB rate on the day the page was built (Latest daily mid-market snapshot · 10 November 2026) and are rounded to the nearest pound. Fee schedules change every year, usually between March and July; the checked date on this page is the date the figures were last read from the school's site. Corrections: editorial@thebaht.com.