Master ESL Teaching with a Professional-level TEFL / TESOL / TESL Certification
Qualify for better jobs in more destinations.
Teach English abroad, online, in Canada and the United States.
Online TEFL/TESOL Courses Recognized by:
TESL Canada
Professional Standards 1 and 2
Accredited by:
U.S. Department of Education Recognized Agency
Earn U.S. CEUs with your OnTESOL certificate
PROFESSIONAL TESOL/TEFL training since 2003
Discover how far you can go with OnTESOL
OnTESOL provides professional-level teacher training that prepares you to teach English with confidence—online or in classrooms around the world. Our courses are recognized by TESL Canada and accredited by ACCET, a U.S. Department of Education–recognized agency. Each program combines academic theory with practical lesson-planning skills, ensuring you graduate ready to deliver engaging, communicative lessons from day one.
Teach English in North America
Qualify to teach in Canada or the United States with an OnTESOL certification recognized by TESL Canada (Professional Standards 1 and 2) and ACCET, a U.S. Department of Education–recognized accrediting agency. Earn a credential trusted by employers and backed by national accreditation in both countries.
Teach English Abroad
With a TESL Canada–recognized OnTESOL certificate, you can authenticate your credentials through Global Affairs Canada and qualify for teaching jobs in top destinations across Asia, Europe, and Latin America. Start your international teaching journey with professional-level training that meets global standards.
TESOL/TEFL Certification Guide
New to the World Of English Language Teaching?
Read our TESOL/TEFL Certification Guide: Everything you need to know about types of courses, accreditations, and how to start your career in TESOL.
Recognized by TESL Canada since 2003
Online TESOL/TEFL Courses
120-hour Advanced TESOL/TEFL Certificate
Qualify to teach English worldwide.
Online course recognized by:
TESL Canada Professional Standard 1
Institutionally Accredited by ACCET: Earn 12 U.S. CEUs
250-hour TESOL Diploma
BECOME A CURRICULUM DESIGNER & ESL LEADER!
Upgrade your TEFL/TESOL certification
Online course recognized by:
TESL Canada Professional Standard 2
Institutionally Accredited by ACCET: Earn 25 U.S. CEUs
Join Over 20,000 Graduates Teaching English Worldwide
Your journey begins with an internationally recognized TESOL/TEFL certification from OnTESOL.
“The online TESOL certification course is full of relevant and high quality information and activities/lesson plan ideas that would easily work well in all ESL classes.”
What is TESL Canada?
Academically equivalent to the UK-based CELTA: Find out how you can use your TESL Canada certification to teach English in Canada, USA and other native English speaking countries, or go abroad with an internationally recognized credential.
