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Application to CMIS is competitive.  The primary conditions for acceptance are academic eligibility, English-language proficiency, and exemplary behavior.  

2020 - 2021 Academic School Year

CMIS is currently accepting limited grade level applications for the 2020-2021 academic school year.  Please download the CMIS Application to begin the admissions process. 

2021 - 2022 Academic School Year

The recruitment period is now open.  Please download the CMIS Application to begin the admissions process.


Application Process

Step 1: Submit an application, including all required documents, by completing the CMIS Application

Step 2: Pay the non-refundable 5000 baht application fee (using one of the payment methods available) upon submitting an application. 

Step 3: Once the application, documents, and fees have been submitted, the student file will be reviewed and processed.

Step 4: The Admissions Director will then contact the family to schedule a pre-screening assessment appointment for the applicant; the first of two assessments the applicant will undergo during the application process.

Step 5: If an applicant passes the entrance assessment, the applicant’s file will be reviewed by the CMIS Admissions Team.  If the applicant meets the CMIS criteria, an acceptance letter will be sent to the family. If the applicant does not meet the CMIS criteria, a letter will be sent to the family to inform them of the decision.

CMIS strives to maintain a balanced international environment where English is the language of inclusion. We welcome applications from international students who:

  • Qualify academically (as determined by school records and standardized entrance assessment results)
  • Meet the required English-language proficiency expectations for their grade level (as determined by CMIS guidelines).

We accept a limited number of academically qualified non-native English speakers, provided that their English-language proficiency falls within the CMIS guidelines for English Language Development (ELD) and there is space available.

We have limited availability for students with mild learning disabilities (as determined by previous school records, standardized testing, and documentation such as an IEP, school support plan or professional diagnosis) provided their disability falls within the CMIS guidelines for Learning Support (LS) and there is space available.

All applicants must have passed their required birth date by August.  This policy applies to all grade levels, without exception. The age/grade level standard is as follows:


2021 - 2022 Age/Grade Standard


Preschool (2021-2022)
Preschool Age 4

Born between August 2016

and August 2017
Elementary School (2021-2022)
Kindergarten Age 5

Born between August 2015

and August 2016
Grade 1 Age 6

Born between August 2014

and August 2015
Grade 2 Age 7

Born between August 2013

and August 2014
Grade 3 Age 8 Born between August 2012 and August 2013
Grade 4 Age 9 Born between August 2011 and August 2012
Grade 5 Age 10 Born between August 2010 and August 2011
Middle School (2021-2022)
Grade 6 Age 11 Born between August 2009 and August 2010
Grade 7 Age 12 Born between August 2008 and August 2009
Grade 8 Age 13 Born between August 2007 and August 2008
High School (2021-2022)
Grade 9 Age 14 Born between August 2006 and August 2007
Grade 10 Age 15 Born between August 2005 and August 2006
Grade 11 Age 16 Born between August 2004 and August 2005
Grade 12 Age 17 Born between August 2003 and August 2004

2022 - 2023 Age/Grade Standard


Preschool (2022-2023)
Preschool Age 4

Born between August 2017

and August 2018
Elementary School (2022-2023)
Kindergarten Age 5

Born between August 2016

and August 2017
Grade 1 Age 6

Born between August 2015

and August 2016
Grade 2 Age 7

Born between August 2014

and August 2015
Grade 3 Age 8 Born between August 2013 and August 2014
Grade 4 Age 9 Born between August 2012 and August 2013
Grade 5 Age 10 Born between August 2011 and August 2012
Middle School (2022-2023)
Grade 6 Age 11 Born between August 2010 and August 2011
Grade 7 Age 12 Born between August 2009 and August 2010
Grade 8 Age 13 Born between August 2008 and August 2009
High School (2022-2023)
Grade 9 Age 14 Born between August 2007 and August 2008
Grade 10 Age 15 Born between August 2006 and August 2007
Grade 11 Age 16 Born between August 2005 and August 2006
Grade 12 Age 17 Born between August 2004 and August 2005

2023 - 2024 Age/Grade Standard


Preschool (2023-2024)
Preschool Age 4

Born between August 2018

and August 2019
Elementary School (2023-2024)
Kindergarten Age 5

Born between August 2017

and August 2018
Grade 1 Age 6

Born between August 2016

and August 2017
Grade 2 Age 7

Born between August 2015

and August 2016
Grade 3 Age 8 Born between August 2014 and August 2015
Grade 4 Age 9 Born between August 2013 and August 2014
Grade 5 Age 10 Born between August 2012 and August 2013
Middle School (2023-2024)
Grade 6 Age 11 Born between August 2011 and August 2012
Grade 7 Age 12 Born between August 2010 and August 2011
Grade 8 Age 13 Born between August 2009 and August 2010
High School (2023-2024)
Grade 9 Age 14 Born between August 2008 and August 2009
Grade 10 Age 15 Born between August 2007 and August 2008
Grade 11 Age 16 Born between August 2006 and August 2007
Grade 12 Age 17 Born between August 2005 and August 2006

The following required application documents must be submitted before the pre-screening and entrance assessments can be scheduled.

  • Completed online application for admission, including an electronic signature
  • Recent passport-size photograph (head shot)
  • Copy of the applicant’s birth certificate
  • Copy of the applicant’s passport (or Thai ID card)
  • Copies of the parents’ passports (or Thai ID cards)
  • For Students Living with Guardians:
    • Letter of guardianship
    • Copies of the guardian’s passport (or Thai ID card)
  • One letter of recommendation via the CMIS online application system
    • This should be completed by the applicants current teacher
  • Academic records in English, as follows:
    • Preschool to Kindergarten: all available Preschool and Kindergarten progress reports, as applicable
    • Grades 1 to 8: report cards for the current year and the last two previous years
    • Grades 9 to 12: complete and official high school transcripts, including report cards with teacher’s comments for the previous two years
    • Home schooled Applicant: a detailed curriculum document with grades for the home schooling time period. Standardized test scores may also be required.
  • Completed Health Form, a copy of the applicant’s immunization records, along with any pertinent health records, to be entered into the appropriate online form.

Each January, CMIS begins the process of assessing the projected number of vacancies by asking our current students to confirm their plans to re-enroll for the following year.  Once the number of projected vacancies has been confirmed, the CMIS Admissions Team will begin selecting new students between April and May.

Applications may be submitted at any time throughout the year.  New applications will be reviewed and processed as follows:

  • Preschool: CMIS starts accepting new applications in January for the school year that begins in August.  Preschool assessments will be scheduled on specific dates starting in March.
  • Kindergarten and Grade 1: CMIS starts accepting new applications in January for the school year that begins in August.  Kindergarten and Grade 1 assessments will be scheduled on specific dates starting in February.

Grades 2 – 12: CMIS starts accepting new applications in January for the school year that begins in August.  Assessments will be scheduled starting in January for as long as there are suitable vacancies available.

Open Enrollment:  CMIS accepts applications for Elementary School (Preschool through Grade 5) and Middle School (grades 6 - 8) throughout the year as long as space is available.  All applicants must pass their required birth date by the start of school in August to be considered for that year’s enrollment. This standard remains the same for those who wish to join in the second semester.

Closed Semester Enrollment:  CMIS has a closed semester policy for Grades 6 to 12.  The intake of new students in these grades occurs only twice a year, at the beginning of the Fall Semester in August and the Spring Semester in January.

Exceptions:  In some cases, mid-semester High School applicants may be enrolled in an auditing status for the remainder of the current semester and then allowed to take courses for credit at the beginning of the next semester.

CMIS strives to keep class sizes small in order to provide individualized and differentiated instruction needed to help each student succeed. Although we expect to have vacancies at each grade level, we reserve spaces for our qualified priority applicants.

The CMIS Priority Categories are as follows:

  • Christian Missionary families
  • CMIS Staff children
  • Diplomatic / Consular families
  • Fluent English speakers from comparable international schools
  • Former CMIS families who are returning from abroad
  • NGO / Non-profit organization families
  • Siblings of current CMIS students

All other applicants are considered on a space-available basis.

Educational excellence in a caring Christian community that respects and celebrates diversity