Best TEFL Certification for Asia: What Japan, Korea, China, Thailand, Vietnam and Cambodia Accept

Updated for 2027 intakes. Last reviewed: 3 November 2026

The best TEFL certification for Asia is an accredited course of at least 120 hours, ideally an Ofqual-regulated Level 5 TEFL Diploma, paired with a bachelor’s degree. That combination clears the work permit rules in Japan, South Korea, China, Thailand and Vietnam. Cambodia is the exception, with no legal degree requirement.

Six countries, six immigration systems, and one question every applicant asks first: which certificate will an Asian employer and a visa officer both accept? This guide answers it country by country for teachers starting in 2027, using the official rules rather than recruiter folklore. Where a law sets no hour minimum, we say so. Where a figure comes from a programme’s own pay scale, we name it.

What is the best TEFL certification for Asia, country by country?

The short answer is the same for almost every country: a recognised certificate of 120 hours or more, from a provider whose qualification can be checked on a public register. The detail that changes from country to country is whether the certificate is a legal requirement or an employer preference, and whether a degree has to sit alongside it. The table below sets out the rules as they stand for 2027 applicants.

Pay figures come from our TEFL Salary Index, checked 28 October 2026, with euro equivalents at the European Central Bank reference rates of the same day. Japan’s note: Instructor status needs a degree, an equivalent professional qualification or 12 years of education in the language taught, and Specialist in Humanities status needs a degree or 10 years of relevant experience, so for most new teachers the degree is the realistic route.

Is a 120-hour TEFL certificate enough for Asia?

Yes, a 120-hour certificate is enough to meet the employer standard in all six countries, provided it comes from an accredited, verifiable provider. It is the figure schools quote in job adverts across the region, even where the law itself sets no number.

That last point matters more than most guides admit. China’s foreign teacher rules name TEFL, TESOL and CELTA as certificates that waive the two years’ experience requirement, but publish no minimum hours. Vietnam’s Decree 219/2025/ND-CP asks language centre teachers for a degree and a relevant language teaching certificate, again without an hour count. The “120 hours” you see everywhere is a convention set by employers and recruiters, and a sensible one, because a school filling in a permit file wants a certificate nobody will question.

Where a 120-hour certificate stops being enough is at the top of each market. International schools, universities and the better paid corporate roles look for a longer, regulated qualification. Our 120 Hour Advanced TEFL Course meets the standard entry bar, while the Level 5 TEFL Diploma sits on the UK’s regulated qualifications framework at the same level as CELTA, which is what a school is checking when it asks whether your certificate is “Level 5”.

What is the best TEFL certification for Japan?

The best TEFL certification for Japan is a 120-hour accredited certificate or a Level 5 Diploma, held alongside a degree. A TEFL qualification is not a legal requirement for a Japanese work visa, but it is one of the clearest ways to stand out in a crowded applicant pool.

Japan’s visa system turns on the status of residence, not the certificate. Public school roles, including the JET Programme, usually run on Instructor status, while private conversation schools (eikaiwa) and corporate trainers sponsor Specialist in Humanities status. Both are set by the Immigration Services Agency of Japan, and both are easiest to obtain with a bachelor’s degree.

The JET Programme is the route most new teachers aim for. Its April 2026 pay schedule sets year one at ¥4,020,000, rising to ¥4,140,000 in year two and ¥4,260,000 in year three. For the 2027 cycle, the US application window opened on 21 September 2026 and closes on 13 November 2026, with interviews in late January 2027. Other countries run their own windows through their Japanese embassy, so check yours.

Our dedicated guide to the best TEFL certification for Japan goes deeper on the two visa statuses and what each employer type accepts, and the full guide to teaching English in Japan covers pay, living costs and the best time to arrive.

What TEFL certificate do you need for South Korea?

South Korea’s EPIK programme asks for a TEFL, TESOL or CELTA certificate of at least 100 accredited hours, and it does not exclude online study. Korea is the only country in this guide where a government programme publishes a firm hour figure.

The certificate also sets your pay. EPIK’s salary scale places a teacher with a degree and a 100-hour certificate at Level 2, which starts at ₩2.2M a month, and the programme has stated that offices of education are not currently hiring at Level 3, the tier for a degree alone. In practice, that makes the TEFL certificate the difference between an offer and no offer. Experience and further qualifications move you up to Level 2+, Level 1 and beyond, with Seoul and Chungbuk adding S grades worth up to ₩3.0M.

The E-2 visa itself rests on three things: citizenship of one of seven English-speaking countries (the UK, Ireland, the US, Canada, Australia, New Zealand or South Africa), a bachelor’s degree, and a clean national criminal record check. Both the degree and the record check must be apostilled. EPIK’s own official site lists the current intake and requirements. For the full breakdown, see what South Korean employers actually accept, and our guide to teaching English in South Korea.

Do you need a TEFL certificate to teach in China?

A TEFL certificate is the usual way new teachers qualify for a Chinese work permit, because it waives the rule that a foreign language teacher must have two years’ teaching experience. Without one, you would need that experience, an education or language degree, or a teaching licence from home.

The rule comes from the State Administration of Foreign Experts Affairs notice WZF [2017] No. 40. A foreign language teacher must normally teach their native language, hold a bachelor’s degree or above and have more than two years of language teaching experience. The experience condition is waived for holders of an internationally recognised language teaching certificate such as TEFL, TESOL or CELTA. The notice names those certificates but sets no minimum hours, so 120 hours is the employer convention rather than the law.

The order of the paperwork surprises people. Your employer applies first, through the Foreigner’s Work Permit system, for a Notification Letter. You then take that letter to a Chinese embassy or consulate to apply for the Z visa, and your employer converts it to a work permit after you arrive. China joined the Apostille Convention in November 2023, which simplified the authentication of degrees and record checks. Pay varies so widely between tier one cities, smaller cities and school types that a single national range would mislead, so check current figures on the Salary Index and read our guide to teaching English in China.

What qualifications do you need to teach English in Thailand?

To teach legally in a Thai school you need a bachelor’s degree, a work permit, and either a Thai teaching licence or a temporary teaching permit that your school requests from the Teachers’ Council of Thailand. A TEFL certificate is not one of the official criteria, but schools use it to decide who gets hired.

Most foreign teachers start on the temporary permit, often called a waiver. The school applies for it, not the teacher. According to the Thai government’s official guide, each permit lasts up to two years, and the total may not exceed six consecutive years, during which the teacher is expected to work towards a full licence. Ask your school to confirm in writing that it will make the application.

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The visa is a Non-Immigrant B in the teacher category, followed by a work permit from the Department of Employment. One date to put in your diary: Thailand joins the Apostille Convention on 28 February 2027. Until then, your degree and police certificate still go through the older consular legalisation chain. From that date, a single apostille should replace the chain, so check which route applies on the day your documents are processed. Our Paperwork Desk tracks both routes, and the guide to teaching English in Thailand covers pay and cities.

What do you need to teach English in Vietnam?

Vietnam requires a bachelor’s degree and a recognised language teaching certificate for a work permit at a language centre, under Decree 219/2025/ND-CP, which took effect on 7 August 2025. The decree replaced the old foreign worker rules and moved permit decisions to provincial level.

For language centres, the education sector standards ask a native speaker for a college degree or higher plus a relevant foreign language teaching certificate. There is no experience requirement on that route and no hour count, so a 120-hour TEFL certificate is what employers ask for in practice. Ask your school to confirm which route it is using before you pay to authenticate anything.

The biggest change for 2027 applicants is paperwork. Vietnam joined the Apostille Convention on 11 September 2026, so a single apostille now replaces consular legalisation for your degree and criminal record check. Most teachers still enter on an e-visa, secure a job, and move onto a work permit and LD visa once the employer’s application is approved. Read our guide to teaching English in Vietnam for cities and living costs.

Can you teach English in Cambodia without a degree?

Yes. Cambodia sets no legal degree requirement for a teaching work permit, which makes it the most open of the six countries. That puts more weight on the TEFL certificate, because it becomes the main thing a school uses to judge whether you can teach.

Open does not mean informal. Article 261 of Cambodia’s Labour Law states that no foreigner can work without a work permit and an employment card from the Ministry of Labour and Vocational Training, and both are issued through the ministry’s online Foreign Workers Centralised Management System. Your employer also needs an approved foreign worker quota. Permits run to 31 December each year and are renewed between January and the end of March, so a teacher starting in the autumn renews within months.

Two practical points. Enter on an ordinary E-class visa rather than a tourist visa, because a tourist visa cannot be turned into a working arrangement. And while a degree is not legally required, international schools and the better paid employers still prefer one. Our guide to teaching English in Cambodia covers the job market in Phnom Penh and Siem Reap.

Is a Level 5 TEFL Diploma worth it for Asia?

A Level 5 TEFL Diploma is worth it if you are aiming above the entry level, because it is a regulated qualification an employer can check, and it carries more weight with international schools, universities and EPIK placement panels. It is not a legal requirement in any of the six countries.

Be wary of anyone who promises a fixed salary uplift. Pay in Asia is set by the employer, the city and the school type, and in Korea by a published scale that rewards experience more than certificate length. What a longer qualification does reliably is widen the set of jobs you can apply for and make a visa file look stronger. It also includes more teaching methodology, which matters when your first class is a room of young learners in Hanoi or a kindergarten in Busan.

The other upgrade worth considering is a specialism. Young learners dominate teaching in Thailand, Vietnam, Cambodia and much of China and Korea, while business English and exam preparation suit Japan’s corporate market and the test prep centres found across the region. Our Specialist Course Bundle covers young learners, business English, IELTS preparation and teaching online.

Which Asian country is easiest to get a teaching job in with a TEFL certificate?

Cambodia is the easiest to enter on paper, because it has no degree requirement and no fixed list of eligible nationalities. For degree holders, South Korea and Vietnam are the most predictable, because their rules are written down clearly and their employers hire in large numbers.

Each country suits a different kind of teacher. Korea rewards planners: EPIK’s structured intake, housing and published pay scale make it the safest first contract for a graduate who wants to save. Japan rewards patience, since the JET timeline runs almost a year from application to arrival. Vietnam suits teachers who want to arrive, take a course or interview in person and start within weeks. Thailand suits those who value lifestyle over savings. China offers the widest range of roles but the most paperwork. Cambodia suits career changers without a degree, as long as they accept lower pay and work only with schools that handle the permit properly.

If you are still deciding between them, the September 2026 edition of The Atlas on Asia’s government English teaching programmes compares the state schemes side by side, and the Visa Desk keeps the entry rules current.

How do you prove your TEFL certificate is genuine to an Asian employer?

You prove it by giving the employer a certificate they can check independently, ideally on a government register, and by having it authenticated in the same way as your degree when the visa file asks for it. Schools and immigration offices across the region check certificates closely, and a certificate nobody can verify is a common reason a file stalls.

A regulated qualification can be looked up on the Ofqual register in the UK, which is why a Level 5 Diploma travels well. Keep the original, a certified copy and the certificate number together, and check early whether your country wants the TEFL certificate apostilled as well as the degree. China, Vietnam and Korea commonly ask for authenticated documents, and the rules on which documents need it differ by province and employer. Our explainer on accredited TEFL certification sets out what an employer is looking for.

Ready to get TEFL qualified for Asia?

Start with the qualification every country on this list recognises. The TEFL Institute Group is Europe’s largest TEFL trainer by teachers certified, with 161,000 teachers certified since 2017 who have gone on to teach in 80 countries, and every certificate carries a number an employer can verify. If you want the strongest file for Japan, Korea and the international school market, the Level 5 Diploma is the one to choose.

Get TEFL qualified for Asia

Last updated: 3 November 2026. Pay figures are approximate, not quotes, and visa rules change. Always confirm the current requirements with your employer and the official source before you apply.