Best TEFL/TESOL Accreditation in 2026 | Trusted TEFL Reviews.

(Updated: February 19, 2026)

When I started as an English teacher and was interviewing for jobs, I noticed that some employers paid particular interest in which organization had accredited my TEFL certificate.

Thankfully, I had chosen a TEFL certification program that was fully accredited by a reputable accreditation body. The result of this is that I have never been turned down from a job position because of the accreditation status of my TEFL TESOL certificate.

When I co-started trustedteflreviews.com, I began to notice that some companies were making bold claims about their accreditation status that simply didn’t add up.

Two clear examples of this:

1. A company claims to be “Fully Accredited” but created the accreditation website to give the impression of being “Fully Accredited”.
2. A company claims to be “Fully Accredited” but is, in fact, only regulated by the organizations by which it claims to be accredited.

I also noticed that the companies falsely claiming “Fully Accredited” status regularly spread misinformation about reputable accreditation companies.

There are three types of TEFL accreditation:

1. Fully Accredited.
2. Accredited.
3. Unaccredited.

You should choose a course from a provider that offers Fully Accredited courses.

The most reputable and well-known international (Fully Accredited) accreditation bodies are (in alphabetical order) ACCET, ACTEFLC, OISE – University of the Toronto Faculty of Education, TESL Canada, and the University of Cambridge’s English Language Assessment:

If a program is Fully Accredited, by one of the above bodies, it is guaranteed that your certificate will be recognized for all online and international teaching English jobs.

If a program is only Accredited, it means that there is a large question regarding the international recognition of the certificates that it awards.

If a program is Unaccredited, you will have very little hope of getting any type of teaching English job.

There are 54 Online TEFL/TESOL certification course programs currently listed on Trusted TEFL Reviews.

Out of these 54, just 7 are Fully Accredited.

In the current review-ranked order, these are:

1. TEFL Online Pro | ACTEFLC Fully Accredited

Program website: https://teflonlinepro.com/

Verified reviews: https://trustedteflreviews.com/category/tefl-online-pro-reviews-in-2025/

Teachers’ Choice Award | TEFL Online Pro has won the prestigious Teachers’ Choice Award for the past seven consecutive years: 2019, 2020, 2021, 2022, 2023, 2024, and 2025.

TEFL/TESOL online programs that win the Teachers’ Choice Award are granted the ability to enjoy a whole year’s free exposure on Trusted TEFL Reviews, where they may post, for example, any current course discounts or promotions.

2. OISE University of Toronto TEFL | OISE – University of the Toronto Faculty of Education Fully Accredited

Program website: https://teflonline.teachaway.com/

Verified reviews: https://trustedteflreviews.com/category/oise-university-of-toronto-tefl/

3. CIEE TEFL | ACCET Fully Accredited

Program website: https://www.ciee.org/

Verified reviews: https://trustedteflreviews.com/category/ciee-tefl/

4. Maximo Nivel TEFL | Ministry of Education (Guatemala and Peru) Fully Accredited

Program website: https://maximonivel.com/

Verified reviews: https://trustedteflreviews.com/category/maximo-nivel-tefl/

10. Bridge TEFL | ACCET Fully Accredited

Program website: https://bridge.edu/tefl/

Verified reviews: https://trustedteflreviews.com/category/bridge-tefl/

28. TEFL Iberia | University of Cambridge’s English Language Assessment Fully Accredited

Program website: https://tefl-iberia.com/

Verified reviews: https://trustedteflreviews.com/category/tefl-iberia/

33. ontesol | TESL Canada Fully Accredited

Program website: https://ontesol.com/

Verified reviews: https://trustedteflreviews.com/category/ontesol/

The remaining 49 programs mostly claim to be Fully Accredited but are either only Accredited or Unaccredited.

To check which TEFL companies are Fully Accredited, Accredited, or Unaccredited, check the TEFL Course Directory:

https://trustedteflreviews.com/tefl-course-directory/

New! Click here for the online TEFL/TESOL international certification course Teachers’ Choice Award winner. International Online TEFL/TESOL course certification at its best.

Verified Online TEFL/TESOL certification course program reviews, ranked in order of customer satisfaction: TEFL Course Directory

TEFL Accreditation Guide | 6 TEFL Red Flags | TTR Home | TEFL Course Special Offers

The post Best TEFL/TESOL Accreditation in 2026 appeared first on Trusted TEFL Reviews.

ESLinsider Warning.

This is yet another warning about the ESLinsider TEFL program.

ESLinsider is run by Ian Patrick Leahy.

Almost every single TEFL program that I have spoken to has said that Ian Leahy is a public menace.

Essential TEFL Tip!

Are you worried about being scammed? TEFL course scams are becoming more sophisticated!

Protect yourself by reading about the latest TEFL scams in this article:

Online TEFL/TESOL Course Review Scams in 2025

If you are concerned about becoming a victim of an Online TEFL/TESOL course scam, we strongly recommend choosing from one of the 5 Best Online TEFL/TESOL certification course programs in 2025:

The 5 Best Online TEFL/TESOL Courses in 2025

Mia Williams – Trusted TEFL Reviews

Why is Ian Leahy from ESLinsider a public menace?

Here are ten reasons why:

1. Ian advised TEFL teachers to teach in China without a college degree or with a fake college degree. A direct result of this poor advice was the imprisonment and subsequent deportation of some TEFL teachers in China.
2. The authorities in China have placed ESLinsider/Ian Leahy on a blacklist. If Ian were to travel to China, he would be arrested and imprisoned.
3. Ian is accused of fraud- stealing the credit card details of some of his customers and using that money for his purchases.
4. Ian’s ESLinsider TEFL course is not accredited and its certificate is not recognized by any reputable English companies or schools.
5. ESLinsider/Ian Leahy was banned from Facebook (2017 onwards) for shilling his program, spamming, and spreading TEFL conspiracy theories.
6. Ian’s ESLinsider business model has a zero budget for paid advertising and marketing. Instead, Ian writes trash about the main players in TEFL. He does this to increase his online footprint and net new customers this way.
7. Fake reviews. Ian writes fake 5-star reviews for his TEFL program.
8. False identities. Ian has numerous identities online. He uses these to attack the main players in TEFL and uses them to shill his TEFL program.
9. Ian Leahy moved back to the USA last year (from Japan) because his ESLinsider TEFL program went bankrupt. He has spent the past winter working on the ski slopes in Idaho/Montana, and this summer Ian is working at a lodge in Oregon.
10. We tracked down some of Ian’s alter egos on Reddit (fake accounts) and saw that he was asking about how to find under-the-table paid work in either Chile or New Zealand.

The following is a heart-breaking first-hand account of the real-world effects of being scammed by ESLinsider/Ian Leahy.

In the period when this account took place, Ian Leahy was falsely claiming that he was a respectable UK-based recruiter for English teachers in Asia.

ESLinsider scams its TEFL customers and also scams other TEFL programs, accreditation bodies, and TEFL review websites.

Ian writes trash about every single TEFL program, about every single accreditation body, and about every single TEFL review website.

He knows that when he does this, his ESLinsider website shows up in the organic Google search for that particular TEFL program, accreditation body, or TEFL review website.

He then hopes to convince people who are new to TEFL that his TEFL course is worth purchasing.

Trusted TEFL Reviews has always responded to any online attacks from Ian Leahy, by simply using Ian’s words against him.

This Trusted TEFL Reviews ESLinsider article is an excellent example:

https://trustedteflreviews.com/2020/02/03/eslinsider-reviews-scam/

Our ESLinsider warning is something that you should take seriously, to avoid being scammed by Ian Leahy.

Many organizations and individuals have issued their ESLinsider warnings.

ESLinsider/Ian Leahy is a menace to the public.

Buyer beware!

This ‘ESLinsider Warning’ article was written by Mia Williams, Trusted TEFL Reviews co-owner.

Read more ESLinsider reviews

New! Click here for the online TEFL/TESOL international certification course Teachers’ Choice Award winner. International Online TEFL/TESOL course certification at its best.

Verified Online TEFL/TESOL certification course program reviews, ranked in order of customer satisfaction: TEFL Course Directory

TEFL Accreditation Guide | 6 TEFL Red Flags | TTR Home | TEFL Course Special Offers

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