TEFL Institute of Ireland
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Accredited 120-Hour Advanced TEFL Certification

  • Certify to teach online & abroad
  • Internationally recognised certificate
  • Exclusive jobs board membership
  • Highfield Regulated Centre

120-Hour Advanced International TEFL Course

The TEFL Institute is ranked as one of the top TEFL trainers by educational institutes and employers worldwide. The 120 hour Advanced International TEFL course is the international standard and is considered one of the most affordable and high-quality online TEFL courses.

With this accredited 120-hour Advanced International TEFL course, you can get TEFL certified and start teaching English online or abroad in less than four weeks. Respected by employers worldwide, this TEFL course will put you in the best possible position to land your TEFL job. And, since all our courses are 100% online, you can fit your studies around your busy lifestyle.

What You'll Get

120-Hour Advanced International TEFL Certificate
Personal Tutor Support
Internationally Recognised Digital Certificate
Free Jobs Coaching Seminars
Study Using the TEFL App
Lifelong Certification & Reference Letter
6 Months Course Access

Free Certified Course Bundle worth

Included with Your Purchase


  • 30 Hour Teach English Online
  • 30 Hour Teach Young Learners
  • AI / Chat GPT Mastery Guru
  • 30 Hour Advanced Grammar for TEFL Teachers
  • 29 hrs of Weekly TEFL Mentorship (Online)

About This Course

Be prepared to take on any role teaching English online or abroad with our accredited 120 hour TEFL course. With ten engaging modules, this course will take you through videos, quizzes, and real-life scenarios to equip you with everything you need to know about teaching English. Master the art of English grammar structure, plan practical lessons, instruct flowing conversations, and build knowledge to create positive learning environments. With six months of study time and tutor support available to every learner, this course boasts a pass rate of over 99%.

If you’re in a rush, this is the perfect course for you and can be completed in as little as 2-4 weeks on a part-time basis. As part of our fast-track range, it’s designed for those pressed for time. This lifetime qualification is the minimum TEFL certification recognised worldwide.

Ireland’s Leading TEFL Provider with International Recognition

With The TEFL Institute, you’ll receive a trusted TEFL qualification that lasts a lifetime. What’s more, our globally-recognised and specialised courses have made our graduates some of the most sought-after teachers in the industry. We’re passionate about providing outstanding support during your studies and beyond to help you achieve your goals.

Our Accreditations

HIGHFIELD QUALIFICATIONS AWARDING BODY IN THE UK

Approved Center Number: 21335

Highfield Qualifications are a global leader in compliance and work-based learning and apprenticeship qualifications and one of the UK’s most recognisable awarding organisations. The TEFL Institute is an approved training center by Highfield Qualifications, an independent Ofqual approved Awarding Organization. This means the TEFL Institute has met Highfield’s expectations for developing and delivering high quality courses in the TEFL industry. Every year, Highfield maintains evaluation visits to ensure we are consistently meeting the high standards with our training.

OTCAC – Online Teaching Course Accreditation Committee

The Online Teaching Course Accreditation Committee (OTCAC) is an independent accrediting body focused on maintaining high standards in online and learning education. It works with course providers worldwide to ensure quality, consistency, and credibility in digital learning.

The Committee’s mission is to evaluate and enhance the quality of online teaching programmes while safeguarding learners’ interests and promoting best practices in course delivery.

OTCAC sets clear accreditation standards for online education. Providers that meet these standards can apply for accreditation, demonstrating their commitment to quality, effective instruction, and student support.

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Who can take this course

  • Native or fluent in English, with strong communication skills
  • Interested in teaching English online or in non-native English-speaking countries
  • Aged 17 or older and looking to earn a professional qualification
  • Keen to get certified quickly and start teaching within a month

What You'll Learn

Completion Time : 2-4 Weeks | 6 Months Study Time
Download Full Syllabus
Wellness Advice Guide for TEFL Teachers

Stay Balanced and Inspired

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Resources and guide

Study Prospectus

Study Prospectus

This guide covers all of our TEFL courses as well as discusses teaching online, top TEFL destinations, and essential TEFL facts.
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120-Hour Course Guide

120-Hour Course Guide

Discover everything you need to know about the international standard 120-hour Advanced TEFL certification course curriculum.
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Optional Add-ons

6 in 1 Specialist power pack bundle
TEFL plus
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Cut Off Date: Tuesday, 7th July 2026
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Take a look at your future accredited TEFL course certificate

Sample accredited TEFL course certificate

Why us

World-class TEFL courses and training
24/7 access to your course on any device
Best tutor support
Lifetime access to the TEFL Institute Jobs Board

Hear from Our Students

See what our satisfied students have to say about their TEFL experience with The TEFL Institute of Ireland.

Accredited & approved
Lifetime support
Learn on any device/app
Payment plans
Jobs board access

TEFL On The Go

Learn anytime with the TEFL Institute of Ireland's accredited mobile app. Flexible, interactive, and trusted.

Download on the App StoreGet it on Google Play
The TEFL Institute mobile app

Got Questions?

Get clear answers about TEFL courses, certification, teaching jobs, and everything in between.

Yes. If you are based in the United Kingdom, you can complete the 120 Hour Advanced International TEFL Course fully online. Many students choose this TEFL course in the United Kingdom before teaching abroad or online.

Yes. This Accredited 120 Hour TEFL Course qualifies TEFL teachers from the United Kingdom to teach English online for international companies and private students worldwide.

Yes. The TEFL Institute of Ireland is a certified and accredited provider. This means UK learners receive an Accredited TEFL Course that meets international teaching standards.

It is an Accredited 120 Hour TEFL Course that provides the essential skills and qualification needed to teach English abroad or online. It is a popular choice for students completing a TEFL course in the United Kingdom.

This course is suitable for UK graduates, career changers, gap year travellers, and anyone looking to teach English abroad or online. No previous teaching experience is required.

The course is self-paced, allowing students in the United Kingdom to complete it as quickly or gradually as they like. Many UK students choose to study around work, travel, or other commitments.

Yes. This Accredited TEFL Course is internationally recognised and accepted by schools and online platforms worldwide, making it ideal for TEFL teachers from the United Kingdom.

Students from the United Kingdom and worldwide will receive the same level of academic support throughout the course, helping ensure you feel confident and prepared to teach once qualified.

The 120 Hour Advanced International TEFL Course is trusted by UK students who want to teach English worldwide.