Nakornpayap International School

Private internationalAmericanMae Rim & North

Oldest secular international school in Chiang Mai (founded 1993), teaching a US standards-based curriculum with Advanced Placement courses in high school.

Fees

School year 2026-27. Last reviewed: 11 Nov 2026 · source ↗

Year groupAgesTuitionAll-in annualYear-1 top-upYear-1 total
ECC (K1–K3)3–5US$9,050†฿304,500US$9,050†฿304,500US$2,530†฿85,000US$11,580†฿389,500
Lower Elementary (G1–G3)6–8US$12,020†฿404,400US$12,020†฿404,400US$2,530†฿85,000US$14,550†฿489,400
Upper Elementary (G4–G5)9–10US$12,570†฿422,800US$12,570†฿422,800US$2,530†฿85,000US$15,100†฿507,800
Middle School (G6–G8)11–13US$13,600†฿457,400US$13,600†฿457,400US$2,530†฿85,000US$16,130†฿542,400
High School (G9–G12)14–17US$15,520†฿521,800US$15,520†฿521,800US$2,530†฿85,000US$18,040†฿606,800

All-in annual fee, last five school years

School’s own fee scheduleMarket research*Estimate*

0US$5kUS$10k2022-23: US$9,240 (฿310,900), estimate≈$9,240฿310,9002022-23*2023-24: US$9,870 (฿332,000), market research≈$9,870฿332,0002023-24*2024-25: US$10,630 (฿357,500), estimate≈$10,630฿357,5002024-25*2025-26: US$11,450 (฿385,000), school fee schedule$11,450฿385,0002025-262026-27: US$12,020 (฿404,400), school fee schedule$12,020฿404,4002026-27

2022-23 to 2026-27: 30.1% in total, about 6.8% a year (includes market-research years).

* Years marked with an asterisk are based on market research and not directly from the school, so please reference with care.

School fee schedules: 2025-26 ↗. Market research: 2023-24, BKK Kids 2024 International Schools Guide ↗. These list tuition by school level; we spread them across today’s year groups and add this year’s compulsory charges to make an all-in figure. Estimates fill years with no figure: between two known years we assume steady growth; before the earliest known year we work back at the school’s own rate, or 5.8% a year (the median rise across Chiang Mai schools that publish older schedules). A paler top on a column marks a range (charges that vary by grade).

Yearly charges in the all-in figure

None listed beyond tuition.

One-time charges (Year 1)

  • Application / evaluation feeUS$149†฿5,000
  • Registration fee (early-bird ฿66,000 before 31 Jul 2026)US$2,380†฿80,000

Refundable deposits

  • Book depositUS$297†฿10,000
  • Damage depositUS$595†฿20,000

Optional extras

  • Integrated Pathway Programme fee (IP students only)US$2,080† (฿70,000) a year
Included in tuition
Accident and basic dental insurance; K1–K3 daily meals; G1–G5 daily lunch.
Discounts
Sibling: US$297† (฿10,000) off per semester for the 2nd child onward. Registration fee waived from the 3rd child.
Payment terms
Two semesters; due 31 Jul and 31 Dec. 1.25% a month on late payments.
Refunds
50% in semester days 1–10, 25% in days 11–20, none after day 21.

Fee history

Year group2026-272025-26Change
ECC (K1–K3)US$9,050†฿304,500US$8,620†฿290,0005.0% since 2025-26
Lower Elementary (G1–G3)US$12,020†฿404,400US$11,450†฿385,0005.0% since 2025-26
Upper Elementary (G4–G5)US$12,570†฿422,800US$11,970†฿402,5005.0% since 2025-26
Middle School (G6–G8)US$13,600†฿457,400US$12,950†฿435,6005.0% since 2025-26
High School (G9–G12)US$15,520†฿521,800US$14,770†฿496,8005.0% since 2025-26

Tuition only. Older schedules: 2025-26 ↗. 2025-26: Registration fee US$1,960† (฿66,000).

Key facts

Type
Private international
Curriculum
American
Programmes
AP
Ages
3–18
Main teaching language
English
Other languages taught
Chinese, Japanese, Thai
Religious association
None
Founded
1993
Owner
Not published
Accreditation and licences
WASC (accredited to 2032)
Students
Not published
Nationalities
Many
Campus size
Not published
Class size
Not published
Student–teacher ratio
Not published

Last reviewed: 11 Nov 2026 · source ↗

Location

Area
Mae Rim & North
Address
240 Moo 6, San Phi Sua, Mueang, Chiang Mai 50300
Distance
6.6 km from Tha Phae Gate in a straight line. Allow extra time at school-run peaks.
Map
Open in Google Maps ↗
Website
nis.ac.th ↗

School life

Learning support
Academic and university counselling. EAL and learning-support details not published.
Results and university destinations
86.36% of AP exams scored 3 or higher (school figure); 20+ AP courses.
Facilities
Swimming in Early Years specialist classes.
Boarding
No boarding published
School day
Not published
Haze and clean air
Not published
School bus
Not published

Facts and fees are what the school publishes; “Not published” means we couldn’t find it online. Spotted a change? Tell us. For other families’ experiences, check Google reviews and visit the school.

† Prices are shown in US dollars, converted at ฿33.63 = US$1 (XE mid-market rate, 10 Nov 2026) and rounded. Schools charge in Thai baht: the baht figure shown with each price is the actual amount. Today’s rate ↗