Secondary international school fees in Phuket run from about THB 360,000 to THB 660,000 a year and sixth form from roughly THB 470,000 to THB 760,000, before the IB and A level examination fees that make the final years the most expensive of all.
Secondary and sixth form are the most expensive years of a Phuket international education, and they are also where the choice narrows. Published secondary tuition on the island runs from about THB 360,000 to THB 660,000 a year, and sixth form from roughly THB 470,000 to THB 760,000, which converts to about USD 10,000 to USD 21,000 at the rate the schools have been billing against through 2026. The two market leaders sit clearly at the top; the mid tier is tightly clustered below them.
Schools bill in Thai baht, so the dollar figures here move with the exchange rate. The bands below are published tuition drawn from our Phuket international school fees research and the individual school profiles, and they are tuition only. Sixth form carries the largest add on of any stage in the form of external examination fees, which the exam section below sets out in full.
The table bands annual tuition by school tier for the secondary years and for sixth form separately. Sixth form fees usually sit at or near the top of each school's range. Note that most boutique schools do not run a sixth form, so the premium and mid tiers dominate at that level.
| Tier | Annual secondary tuition | Annual sixth form tuition |
|---|---|---|
| Premium | THB 590,000 to 660,000 (USD ~16,300 to 18,300) | THB 700,000 to 760,000 (USD ~19,300 to 21,000) |
| Mid | THB 410,000 to 490,000 (USD ~11,300 to 13,500) | THB 470,000 to 580,000 (USD ~13,000 to 16,000) |
| Boutique | THB 360,000 to 380,000 (USD ~10,000 to 10,500) | Rarely offered |
School tiers illustrate the market and are not endorsements or exact quotes. Confirm current fees directly with each school.
The named schools below all run a secondary programme, and the two premium schools plus the stronger mid tier schools carry a full sixth form. Figures are published annual tuition at the flagship campus.
The examination fee is the cost that catches sixth form families out, because it sits on top of tuition and is charged in Year 12 and Year 13 separately. External examination fees run roughly THB 35,000 to THB 70,000 for the IB Diploma, and a similar range for the AQA, Edexcel or Cambridge A level series. On top of that, the IB creativity, activity and service expedition and subject field trips add a further sum in the Diploma years.
The other sixth form constraint is not a fee at all but cohort size. Phuket sixth forms are smaller than their Bangkok or Singapore equivalents, which can limit subject choice at Diploma and A level. Families weighing the top two schools against a mid tier option should ask directly which subjects run each year before committing.
Tuition and exam fees are the two biggest lines, but the standard one off and recurring charges apply here too. The bands below are indicative for the Phuket market and should be confirmed with each school.
| Cost | Indicative band | Notes |
|---|---|---|
| Registration | THB 5,000 to 25,000 | Non refundable, paid per applicant. |
| Capital or development levy | THB 60,000 to 250,000 where charged | One off, highest at the two premium schools. |
| Technology or resource fee | THB 10,000 to 25,000 a year | Charged at some schools for device and platform costs. |
| School bus | THB 40,000 to 90,000 a year | Distance based across the island. |
Bands are indicative industry ranges, not school specific quotes. Confirm current figures in each school's fee schedule.
Specialist teaching is the main lever at secondary. Schools that staff separate subject specialists across the sciences, humanities, languages and the arts, and that resource a full sixth form, carry a higher cost base than schools running smaller combined classes. The premium at the top tier also pays for the breadth of A level and IB Diploma subjects on offer.
Facilities and results reporting drive the rest. Science laboratories, design and technology workshops, sports academies and the university guidance function all feed into tuition at the flagship schools. A mid tier school with a leaner offer can still deliver strong outcomes, particularly for a student with a clear subject focus, at a materially lower price.
Sixth form adds examination fees on top of the tuition headline. Use our comparison tool to line up Phuket secondary and sixth form fees against the city your offer is in.
Open the fee comparison toolExamination fees are the big one, easy to forget when you budget from the tuition figure alone, and they land twice across the two sixth form years. Residential trips, the Duke of Edinburgh style expeditions and subject field trips add several hundred dollars a year through the secondary school.
Devices, revision guides, sports kit and music tuition sit on top of tuition and are rarely capped. Transport remains a real recurring line given the island distances, and the capital levy is still due at registration for a student joining in the secondary years.
For the full breakdown by school and tier, read our guide to international school fees in Phuket, or see how the schools rank in our best international schools in Phuket piece. Step down to Phuket primary fees or Phuket early years fees, and start from the Phuket international schools hub to shortlist by curriculum and area.
Secondary international school fees in Phuket range from about THB 360,000 a year at smaller schools to around THB 660,000 at the two premium campuses. Sixth form runs higher, from roughly THB 470,000 to THB 760,000, before examination fees and other extras.
External examination fees run roughly THB 35,000 to THB 70,000 for the IB Diploma, with a similar range for the AQA, Edexcel or Cambridge A level series. They are charged in Year 12 and Year 13 separately, on top of tuition.
British International School Phuket and UWC Thailand run the strongest sixth forms, with HeadStart, QSI, Berda Claude and Kajonkiet also offering post sixteen study. Most boutique schools stop at the end of secondary, so sixth form choice is concentrated in the premium and mid tiers.
Yes. Phuket premium secondary tuition sits roughly 25 percent below the Bangkok top tier and far below Singapore or Hong Kong for broadly comparable outcomes. The trade off is smaller sixth form cohorts and narrower subject choice at Diploma and A level.
Expect a non refundable registration fee, a possible capital levy, a technology fee, the school bus, and at sixth form the external examination fees and expedition costs. Together these can add 15 to 25 percent to the tuition headline.
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