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TESOL Certification United States

Recommended TEFL / TESOL Certification for the United States and Beyond!

Recognized Worldwide

Earn Your TEFL / TESOL Certificate Online

Get your TEFL / TESOL certification online with OnTESOL to qualify for English teaching jobs in the United States and worldwide. The minimum requirement for teaching English immersion classes in the United States is a BA degree in any area and a 120-hour TESOL certificate . The TEFL / TESOL certificate issued by OnTESOL is also valid for teaching jobs online and abroad.

For K-12 and university teaching positions in the United States, the minimum requirement is a state sponsored teaching license and/or Master degree in Education. The TEFL / TESOL certification course offered by OnTESOL is also useful for US licensed K-12 teachers and university or college professors who teach core curriculum subjects to a large proportion of non-native English-speaking students.

Leaders in online TEFL / TESOL training since 2003!

This online TEFL / TESOL certification program will prepare you for teaching jobs and career advancement opportunities in the United States and internationally. It offers more training in lesson planning and TEFL / TESOL methods than the Cambridge CELTA or any standard 4-week TEFL / TESOL certification course that is offered on-site.

Study TEFL / TESOL online at your own pace, attend live workshop-style lectures via Zoom, and earn 3 specialists on teaching young learners, teaching ESL online, and teaching English in foreign countries.

New ESL teachers who want to teach English at language schools in the United States.

Licensed public K-12 teachers and university professors working with ESL students.

Teachers returning to the USA from a gap-year experience abroad who need TESOL certification to teach English in the United States.

Entry-level teachers going abroad who want to learn advanced lesson planning skills to be better prepared for any classroom situation in the world.

Our Most Affordable Accredited Online TESOL Certification with Tutor Support

The 120-hour Advanced TESOL Certificate course includes grammar, phonology, and advanced methodology. By the end of this course you will know how to plan ESL lessons using various industry-standard frameworks. This program will teach you how to become a reflective teacher and supplement the ESL textbook with authentic material or develop ESL lessons from scratch using the skills you learn with OnTESOL.

Unique features include:

  • Lab assignments for learning practical lesson planning skills
  • A wide variety of pre-recorded videos
  • Tutor feedback and support
  • Lifetime job assistance and access to the job board
  • Complete a separate and optional Stand-Alone 20-hour Practicum module in the United States or anywhere in the world.
120-hour Advanced TESOL Certificate

Add a Specialist Course! Save Up to US$640 and Become Better Prepared for Different ESL Teaching Jobs in The United States

The United States has a diverse job market and offers certified English teachers various opportunities in IELTS Preparation courses, K-12 programs, language schools, Business English centers, and online schools.

Add a 20-hour specialist for only US$79 when you enroll in an accredited TEFL / TESOL certification course with OnTESOL .

Recommended online TEFL / TESOL bundle: 168-hour Hybrid TEFL Certificate (US$320 OFF)

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


“I was very pleased with the whole experience. The grammar and phonology modules were great in-depth reviews. The methodology module was an excellent step-by-step guide of how to plan a lesson. I have a better understanding of how students learn and feel much better prepared now to teach English in the United States. My tutor, Aaron Marques, gave very insightful comments from his personal teaching experience. He was a great tutor, always responded quickly. He really made the program! OnTESOL was a great TESOL certification course that gave me the flexibility to study from home and set my own hours”.

Monika Robertson



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