The Thai government recognizes “native speakers” as those who hold passports from the USA, Canada, the UK, Ireland, Australia and New Zealand.

If you hold a passport from any other country, you may need to prove your fluency in English. If you are at least a B1 level speaker (as per CEF guidelines) you can legally teach in Thailand. As such, a valid TOEIC score of 600+ or an IELTS score of 5.5+ may be required by employers and/or officials.