Teach English Worldwide

World-Renowned Online TESOL / TEFL Certification Courses

Get certified to teach English worldwide with OnTESOL!
Since 2003, our TESOL / TEFL certification courses have helped
thousands of teachers get the best teaching jobs in the world
and pursue very lucrative career advancement opportunities.

Choose Your TESOL / TEFL Certification Course!

OnTESOL offers advanced TESOL certification courses for people who want to pursue a professional career and TEFL certification courses for gap-year teachers

Advanced TESOL Diploma

TESOL Certification Online Course

  • Accepted for professional TESOL / TEFL jobs worldwide
  • Accepted in native-English speaking countries
  • Recommended for school director, university, and curriculum development career advancement opportunities
  • Earning potential: $75,000+/year
  • Accreditation: TESL Canada Standard 2 and ACTDEC UK Level 5

Most Popular! Advanced TESOL Certificate

TESOL certificate online

  • Accepted for professional TESOL / TEFL jobs worldwide
  • Accepted in native-English speaking countries
  • Earning potential: $40,000-$60,000/year
  • Accreditation: TESL Canada Standard 1 and ACTDEC UK Level 3

100-hour TEFL + 20-hour TEYL Package!

120-hour TEFL certificate

  • Accepted for entry-level TESOL / TEFL jobs in East Asia, Latin America, and parts of Europe
  • Earning potential: $20,000-$35,000/year
  • Accreditation: ACTDEC UK Level 2

Core TEFL Certificate

100-hour TESOL Certificate Online

  • Accepted for entry-level TESOL / TEFL jobs in East Asia and Latin America
  • Earning potential: Average $20,000/year
  • Accreditation: ACTDEC UK Level 2

Which course is right for you? Take an in-depth look and choose the best course for you!

Why Choose OnTESOL?

Compare OnTESOL with other TEFL / TESOL certification courses:

OnTESOLI-to-I / Love TEFLTEFL Online by University of Toronto / Teach AwayOxford SeminarsMyTEFLTEFL Online by Bridge TEFL
Meets Entry Level Job Requirements AbroadAll coursesAll coursesAll coursesAll courses120-hour TEFL course only100-hour, 120-hour, and 140-hour TEFL courses only.
Accepted for Professional Jobs Worldwide (Without Having to Take a CELTA or Trinity Course)250-hour TESOL Diploma; Advanced 120-hour TESOL Certificate NoneNoneNoneNoneNone
Accepted by Immersion Programs in Native-English Speaking Countries 250-hour TESOL Diploma; Advanced 120-hour TESOL Certificate NoneNoneNoneNoneNone
Leads to TESL Canada or other CELTA / Trinity Equivalent Accreditation250-hour TESOL Diploma; Advanced 120-hour TESOL Certificate NoneNoneNoneNoneNone
Practicum Option with Real ESL Students250-hour TESOL Diploma; Advanced 120-hour TESOL Certificate NoneNoneNoneNoneNone
Advanced Lesson Planning and Teaching Skills250-hour TESOL Diploma; Advanced 120-hour TESOL Certificate NoneNoneNoneNoneNone
Free Job Placement ServiceList of Schools, Job Search Help, Resume Help, Sample Job Ads, and Recruitment.List of Schools, Resume Help, Job Board.RecruitmentList of Schools and Resume HelpResume help and recruitment. List of Schools and Job Resources
Affordability (Prices in Canadian Dollars)Entry Level TEFL Courses: $245-$299

Advanced TESOL Courses: $650-$995

Entry Level TEFL Courses: $499-$799Entry-Level TEFL Courses $995-$1495Entry Level TEFL Courses: $995-$1195Entry Level 120-hour TEFL Course: $395Entry Level TEFL Courses: $389-$995

Teaching Abroad vs Teaching Immersion Programs at Home

Teaching abroad and teaching immersion programs

Teaching Abroad TESOL certificationTeaching abroad is a great way to travel the world while doing a job that makes a difference in lives of so many people, but the experience doesn’t have to end in your gap-year gig! There are plenty of highly paid job opportunities in native-English countries, so you can continue your TESOL career at home if you love teaching English. OnTESOL provides great flexibility to native-English speakers from Canada, USA, UK, Ireland, Australia, New Zealand, and South Africa who want a credential that is accepted abroad and also at home.

OnTESOL Reviews:

Teaching English in CanadaEven after completing a Bachelor of Education, Master’s Degree in Educational Psychology with a thesis on English Language Learner Achievement, two years teaching in South Korean international schools and five years teaching in Canadian public secondary schools, which includes international programming, I found OnTESOL’s program incredibly useful, relevant, theoretically sound and pedagogically inspiring. Not only is this program fundamental for those who wish to teach abroad, but it is also practical and helpful for teachers working with international students who need greater insight into linguistic development, language learner needs and adapted teaching strategies.

Geordy Reid - Teaching English in Canada

Teaching English abroadAfter taking my TESOL course through OnTESOL, I was offered TWO teaching positions in Germany. This course has not only allowed me to find the job of my dreams, it has given me the proper tools to be an effective teacher.  I’ve looked at many online TESOL courses and OnTESOL offers the most robust teaching course. Their trainers are there for you 24/7.  And yes, both jobs I found through the OnTESOL Job Board! This course is worth so much more than what I paid for it!

Jacob Feinberg - Teaching English in Germany

Teaching English in South KoreaI had a very accommodating tutor named Danielle. Though we didn’t get to see other, I felt very comfortable with her. I value and really appreciate her efforts and time on checking my assignments, especially when I was having trouble in making a lesson plan. I learned so much with my tutor. The ideas that she shared had been a great help in my class. Thank you for the great experience OnTESOL!

Teresa Legria - Teaching English in South Korea

Teaching English in ThailandThe course was really helpful and beneficial. I have been an ESL for 3 years but I still learned a lot and I am now a much more effective teacher. I finished the course feeling more confident because I am better equipped after in taking the 120-hour TEFL certificate course with OnTESOL. Furthermore, the tutors are great. They encourage you to ask questions and they also provide lots of comments and feedback. They are really committed in your learning. Choosing OnTESOL is a very good decision! 

Michelle Chavez - Teaching English in Thailand

How Does OnTESOL Provide Better Training?

Learning to create professional lesson plans is the most important reason for taking a TESOL / TEFL / TESL certification course, but most institutes assess their trainees via quizzes and short reflection essays. After completing your advanced TESOL course with OnTESOL, you will be able to create fun and effective lesson plans using authentic materials, integrated skills activities, role-playing, simulations, drama in the classroom, storytelling, debating techniques, presentations, and many more strategies and techniques.

Get Free Job Placement Assistance After Completing Any Of Our Online TEFL / TESOL Courses!

TESOL certification courses onlineTeach English abroad with English First! OnTESOL offers free TESOL job placement services with English First in China and  Russia. Apply to teach English with English First via OnTESOL and get a $200 rebate on any of our TESOL courses after fulfilling your teaching contract with EF!

Teach English abroadKorean Horizons is an official EPIK recruiter. Coventry House International-OnTESOL partnered with Korean Horizons to offer free recruitment services for public school jobs in South Korea. Apply to teach English in South Korea while taking your TESOL / TEFL certification course with OnTESOL!

TEFL certification Teach English in Japan with Gaba! Over 40 locations! Apply to  teach English Conversation One-to-One with the leading institute in Japan after completing your online TESOL / TEFL certification course!

Accredited TESOL Certification TESL Canada Take any of our accredited online TESOL courses and get free job placement in Vietnam. Apply now to teach English in Vietnam with Amslink. A minimum of 120 hours TEFL / TESOL certification is recommended.

TEFL / TESOL / TESL Certification and Teaching English Abroad FAQ’s

  • Is Teaching Experience Required to Teach English Abroad?

    Teaching experience is not required to teach English abroad. Teaching experience may be required in native-speaking countries, the Middle East, and Hong Kong, where teachers earn up to $70,000/year plus benefits.  Go to TESOL jobs for more information.

  • Do I Need to Learn a New Language to Teach English Abroad?

    You don’t need to speak the local language to teach English abroad, but you should take advantage of your TESL experience to learn a new language for your own personal development. The English-only policy prevails in most programs and schools want certified teachers who know how to use the Communicative Approach. Our TESOL courses will prepare you for the job.

  • Is OnTESOL Accredited?

    Our online TEFL / TESOL certification courses are recognized by TESL Canada and ACTDEC UK. These accrediting organizations have approved our course material, teacher trainers, and advertising claims.

  • How is OnTESOL Different?

    Most course providers offer introductory TESOL courses for people who just want to teach English abroad and travel. Even CELTA is an introductory program for entry-level teachers. Our goal is to raise the standards of the industry by providing professional teacher training programs that are accredited and affordable. Learn more about us

  • How Does OnTESOL Compare with CELTA?

    CELTA is an entry-level 120-hour TESL / TEFL / TESOL certification course that includes a Practicum module. OnTESOL offers advanced online TESOL courses with an optional Practicum module that is offered separately. Our 120-hour Advanced TESOL Certificate is academically equivalent to CELTA. Our 250-hour TESOL Diploma is more comprehensive than the CELTA certification course. Graduates who wish to gain supervised teaching experience can take the 20-hour Practicum module anywhere in the world.

  • Does OnTESOL Provide Tutor Support?

    All our TESOL courses come with professional tutor support! An experienced and accredited teacher trainer will assist you throughout the program and provide you with extensive feedback on every assignment.

  • Is Online TEFL / TESOL Certification Accepted Worldwide?

    In most countries, the minimum TEFL / TESOL certification requirement is 100 hours. If your goal is to teach English abroad, you can get an entry-level job anywhere in the world with an online TESOL or TEFL course. If you want to teach English in a native-speaking country, you need to complete a 20-hour Practicum module after the online course. The Practicum module is also recommended for certain teach abroad programs in Hong Kong and the Middle East. OnTESOL graduates can complete an optional Practicum module after completing any of our advanced TESOL certificate courses.

  • How Does The Practicum Work?

    You can take the Practicum module anywhere in the world after completing any of our advanced TESOL courses (The Practicum is not available for TEFL certificate graduates). The Practicum must take place with adult students, as per TESL Canada requirements. Graduates are required to find a qualified supervising teacher and OnTESOL will provide the guidelines after we approve the supervising teacher.

  • Where Are OnTESOL Graduates Teaching Today?

    Our graduates are teaching English in the most reputable programs in the world! Their top 10 picks are:

    Canada: Language schools and universities.

    Hong Kong: Language Schools, NET’s Program, Business English programs.

    South Korea: EPIK and private schools.

    United Arab Emirates: ADEC, ADVETI, and international schools.

    Germany: Language schools and Business English programs.

    Japan: JET Programme, Interac, Gaba, Conversational schools.

    China: Universities, English First, and other language schools.

    Thailand:  Language schools and public schools.

    Turkey: Language schools and international schools.

    Italy: Business English programs and language schools.

    Spain: Business English programs and language schools.

  • What’s the Difference Between TESOL / TEFL / TESL?

    TEFL, TESOL, and TESL are acronyms that refer to the same industry.

    TEFL: Teaching English as a Foreign Language. The TEFL courses offered by OnTESOL were developed for people who want core training and certification to teach English abroad during their gap-year

    TESOL: Teaching English to Speakers of Other Languages. Our advanced TESOL courses were developed for people who want to pursue a professional international career.

    TESL: Teaching English as a Second Language. In Canada, accrediting and professional groups carry the TESL designation (ei: TESL Canada, TESL Ontario, ATESL, and TESL Toronto). Our advanced TESOL courses are recognized by TESL Canada.

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