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TEFL / TESOL Courses

Globally Renowned Since 2003

Online TEFL / TESOL Courses by OnTESOL

Valid for ESL Teaching Jobs Worldwide

Institutionally Accredited by ACCET
– U.S. Department of Education Recognized Agency –

Recognized by TESL Canada and TESL Ontario
Academically Equivalent to CELTA and Trinity CertTESOL


Why Choose OnTESOL?

All our courses are recognized by TESL Canada and valid for ESL teaching jobs worldwide

  • Accepted for professional TESOL / TEFL jobs abroad.
  • Accepted for ESL teaching jobs in Canada and the USA.
  • Accepted for online ESL teaching jobs.

Our online TEFL / TESOL certification courses include tutor support, the world-renowned online textbook developed by Coventry House International, a variety of videos and live options to support your learning experience, and lifetime job assistance.

120-hour Advanced
TESOL Certificate

TESL Canada Professional Standard 1 / TESL Ontario CTESOL (Part 1 of OCELT)

Qualify for English teaching jobs abroad, online, and in Canada or the USA. As a TESL Canada approved course, this self-paced online 120-hour TESOL course offers the same level of training and credentials as the UK-based CELTA and Trinity CertTESOL courses.

168-hour Hybrid
TEFL Certificate

TESL Canada Professional Standard 1 / TESL Ontario CTESOL (Part 1 of OCELT)

Upgrade your 120-hour TESOL course with live training via Zoom and 3 specialists! 168-hour Hybrid TEFL Certificate course combines the self-paced 120-hour TESOL course with the live 10-hour Lesson Planning Workshops, the Teaching English Online specialist, the TEYL specialist, and an extra module on using creative resources in foreign countries.

TESOL Diploma

TESL Canada Professional Standard 2

The 250-hour TESOL Diploma is recommended for experienced and certified ESL teachers looking to upgrade their credentials to TESL Canada Professional Standard 2.

Which Course is Right For Me?

The 120-hour Advanced TESOL Certificate offers advanced training in a convenient self-paced online format. Get the same level of training and credentials as the UK-based CELTA certification course! This 120-hour online TESOL course offers comprehensive training in grammar, phonology, classroom management, testing, and lesson planning. Recognized for teaching jobs abroad, online, and in Canada or the USA.

The 168-hour Hybrid TEFL Certificate
(CA$400 OFF)
(US$320 OFF)
offers all the benefits of an in-class course with live online classes via Zoom! This course combines the 120-hour course with the live workshops and three specialists on teaching young learners, teaching online, and using resources in foreign countries. Recognized for teaching jobs abroad, online, and in Canada or the USA.

The 250-hour TESOL Diploma is recommended for experienced and certified ESL teachers looking to upgrade their credentials to TESL Canada Professional Standard 2 certification.

Recommended TEFL / TESOL Course Bundle (35% OFF): The 168-hour Hybrid TEFL Certificate
($400 OFF)
(US$320 OFF)
is our best offer! Become an expert in ESL lesson planning with the innovative live workshops and add 3 specialists to prepare better for your teaching career!

New to the World Of English Language Teaching?

Read our TEFL / TESOL certification guide: Everything you need to know about types of TEFL / TESOL courses, accreditations, and how to start your career as an English language teacher.

Our Best TEFL / TESOL Certification for 2023!

This year we are celebrating our 20th anniversary with new courses and big discounts!

Find the best TEFL / TESOL certification course for your schedule, budget, and job objectives.


20-hour Specialist Certificate Courses

Most English language schools offer their students specialized instruction to meet their specific needs. Topping the list are these four:  Young Learners, Business English, IELTS preparation courses, and Online learning. The 20-hour Specialist certificate courses offered by OnTESOL will boost your resume and prepare you for more opportunities. 

on each specialist when you enroll in an online TESOL/TEFL course with OnTESOL

Save a total of
when you enroll in the 168-hour Hybrid TEFL Certificate course, which combines the 120-hour TESOL course with the live 10-hour workshop and our most popular specialist courses (teaching young learners and teaching online)! See Course

20 hour
Teaching English Online

English teacher in a classroom with children

Teaching English to Young Learners

Creative Speaking Activities for the ESL Classroom

Teaching Business English

Students preparing for their IELTS examination


What’s Included in the Tuition Fee?

OnTESOL's online learning platform

Syllabus and Course Material Recognized by TESL Canada

All course material is included in the tuition fee. You can access our responsive student portal from your desktop, phone, or table and you also have the option to download each chapter in PDF for printing and/or offline viewing.

  • Textbook
  • Video Tutorials
  • Recorded ESL Lessons
  • FAQ Videos
  • Live Workshops (Optional)
  • Interactive Practice Quizzes to Keep You Engaged and Monitor Your Progress
  • Lab Preparation Videos
  • Job Assistance
  • Tutor Support

Video Tutorials, Recorded ESL Lessons, FAQs Videos, Lab Tutorials, and Live Workshops: 

OnTESOL offers a wide variety of videos to support your self-paced learning experience.  Our online TEFL / TESOL courses include standard video tutorials, pre-recorded ESL lessons integrated with class observation assignments to show you how to deliver different stages of a lesson plan, FAQs videos to review sections of the TEFL / TESOL course where OnTESOL tutors have provided extensive support for the past 18+ years, and lab tutorials by our Director of Studies to support you in the lesson plan assignments.

Those looking for an interactive learning experience can add the live 10-hour Lesson Planning Workshop during registration in the 120-hour or 250-hour TESOL course. The 10-hour workshop offers a unique experience through live lectures and group activities.

Video tutorial, Recorded ESL Lessons, and Frequently Asked Questions explained by our TESOL experts

Professional Tutor Support

An experienced teacher trainer will be assigned to assist you throughout the program. Your tutor will provide you with extensive feedback on every assignment to help you improve your teaching methods.

OnTESOL only hires teacher trainers with more than 10 years of experience in the ESL classroom and more than 5 years of experience in CELTA, Trinity CertTESOL, or TESL Canada approved courses. Some of our tutors have more than 30 years of experience in the industry!

All our tutors are recognized by TESL Canada, so you are guaranteed to receive professional tutor support from a qualified and experienced teacher trainer.

Internationally Recognized TESOL Certificate and Transcript by Post

  • A stamped hard copy of your certificate and transcript will be mailed to anywhere in the world!
  • Instantly download your TEFL / TESOL certificate and transcript to apply for jobs online.
  • Certificate Number: Employers can verify your certificate by its unique number in our certificate verification page.
Hard and soft copies of TESOL certificate included

Job Assistance in the Top Destinations!

Receive free job assistance for paid teaching jobs in the top 20+ destinations when you register in the 120-hour, 168-hour or 250-hour TEFL / TESOL course with OnTESOL. Our job assistance service includes access to thousands of teaching jobs and support with resume and job interview preparation.

  • Job Board
  • List of 1000+ ESL Schools From All Over the World
  • Assistance with resume and job interview preparation

Ready to Become TEFL / TESOL Certified?

Our recognized TEFL / TESOL programs will give you the skills and knowledge you need.

Reviews by Graduates

I have recently completed the 120-hour Advanced TESOL Certificate Course. I think this course is incredible and I would highly recommend it to anyone who wants to get into teaching English as a foreign or second language. Even though I’ve been teaching for several years, I discovered so many useful techniques so I recommend the OnTESOL course even for those who already have experience teaching English. My tutor, Aaron, was wonderful. He is a great guide who walked with me through the whole course, helped whenever I had problems and always got back to me in a timely manner. I want to thank OnTESOL for providing an unforgettable learning experience!

Yana Demtsun

I have enjoyed using my OnTESOL course for the past 7 years in life, in Cambodia and in Taiwan.

The lesson plan assignments and assistance I received from the kind tutors helped me to become more creative in the classroom. I would recommend this online TESOL course to anyone that would like to know more about Teaching English as a Second Language and developing their lesson planning skills.

Thank you OnTESOL for your help all these years after completing my course. I feel you have done a lot to assist me in my career.

Patrick Meir

Excellent online course. I was a little skeptical at first that the online course would not compare favourably with the classroom course but I was pleasantly surprised. I was able to apply much of my new knowledge immediately. I took the 120-hour course plus the course for business English. I applied for ESL work in the business sector immediately after completing my OnTESOL course and received a favourable answer to all my requests, finally settling with the YMCA in Montreal. I never thought the course would be so helpful especially when it comes to lesson planning.

Michel Di Stefano

5 Reasons to Take a TEFL / TESOL Course with OnTESOL

1. Teach English Abroad or at Home:

Our advanced online TEFL / TESOL certificate courses are recognized abroad and in native-English speaking countries, so you can go abroad and have the credentials you need to teach at home. Take an internationally recognized TEFL / TESOL certificate course with OnTESOL!

2. Internationally Accredited and Recognized:

OnTESOL is institutionally accredited by ACCET – Recognized by the US Department of Education since 1978-. ACCET accreditation guides OnTESOL with developing organizational processes and policies that support ongoing course improvements and innovation through data-oriented analysis, student surveys, and annual educational reviews.

OnTESOL is Accredited by ACCET

Our online TEFL / TESL / TESOL courses are recognized by TESL Canada and TESL Ontario, which validate our syllabus and teacher trainers to ensure that OnTESOL graduates learn the skills they need for a successful career and receive the certification required to teach English in Canada or compete for high-paying jobs internationally. TESOL/TEFL/TESL courses recognized TESL Canada and TESL Ontario are academically equivalent to the UK-based CELTA and Trinity CertTESOL brands.

TESL Canada & TESL Ontario

3. Professional Tutor Support:

An experienced and qualified teacher trainer is crucial in a TEFL / TESOL certificate course. Our courses come with a professional and accredited teacher trainer who corrects the work, provides extensive feedback on each assignment and is available to answer questions. The Director of Studies supervises tutors, moderates assignments, and issues the final transcript and certificate. All our tutors have been approved by TESL Canada and TESL Ontario.

4. Job Assistance Package

Get free recruitment, access to an international job board, a master list with more than 1,000 schools from around the world, and help with your resume and job interview when you take an accredited TEFL / TESOL certificate course with OnTESOL. Learn more about our job assistance package.

5. Lesson Planning Skills: Why You Need Them

The level of lesson plan that you will learn to create in an advanced TEFL / TESOL certificate course will put you above everyone else when applying for English teaching jobs. More importantly, your lesson planning skills will prepare you as a reflective and independent teacher, which means that you will have the skills to adapt the boring textbook and eventually develop a full curriculum with original lesson plans. This is a very valuable skill to have because it will help you enjoy your job and pursue a lucrative career in the field of Teaching English to Speakers of Other Languages (TESOL).

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