How to Choose the Right TEFL Course for YOU
Ishbel Rose
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You've decided you want to teach English abroad. You've Googled "TEFL course" approximately forty-seven times. And now you're staring at a screen full of options ranging from £19 to £2,000, all claiming to be internationally recognised and employer-approved.
So what's actually worth your money?
This guide breaks down exactly what to look for in a TEFL course as a native English speaker and what the flashy marketing doesn't always tell you.
Why Native English Speakers Still Need a TEFL Qualification
Being a native speaker gives you a real advantage when applying for teaching jobs abroad. But it doesn't prepare you for the classroom. Grammar rules you absorbed naturally at age five, your students are learning consciously for the first time.
Knowing how to speak English and knowing how to teach it are genuinely different skills and employers know

Most reputable language schools and international schools require a minimum 120-hour TEFL certificate before they'll hire you. Without one, you're limited to the lowest-paid, least regulated positions. With a solid certification behind you, you're competitive for jobs in countries like Thailand, South Korea, Japan, Spain, Germany, and beyond: Jobs that include a real salary, visa sponsorship, and sometimes accommodation.
The One Number That Actually Matters: 120 Hours
When you're comparing courses, hours are the first filter to apply. The internationally recognised minimum standard is 120 hours of instruction. This isn't arbitrary, it's what the majority of employers look for when screening applications, and it's what gives your certificate credibility once you're in the job market.

Courses under 120 hours do exist and they can be useful as add-ons or specialist modules, but as a standalone certification they won't open the same doors. A 40-hour course bought on a Groupon deal might technically come with a certificate, but experienced hiring managers spot the difference immediately.
If a course is advertising itself as a full TEFL certification and the hours aren't clearly listed, that's a red flag. Any reputable provider will be upfront about what you're getting.
Accreditation: What It Means and What to Ask
"Internationally accredited" is one of the most overused phrases in the TEFL industry. Almost every provider uses it. So what should you actually be checking?
Legitimate accreditation means your course has been assessed by a recognised external body, not just approved by the provider themselves. In the UK, this means bodies like Ofqual-regulated qualifications or membership of respected organisations like ACCREDITAT. Look for Level 3 or Level 5 qualifications if you want credentials that are directly comparable to CELTA or Trinity CertTESOL for competitive roles.
The thing to ask directly is: who accredits this course, and can I verify that on the accrediting body's website? If the answer is vague, keep looking.
For most teaching jobs abroad, particularly in Asia, the Middle East, and Latin America, a properly accredited 120-hour online course is genuinely sufficient to get hired. The expensive CELTA route is worth it if you want to teach at British Council-affiliated schools or universities in Europe, but it isn't a requirement for the majority of teaching positions.

Online vs In-Person: Which Is Right for You?
The short answer: for most native English speakers starting out, an online course is completely fine.
Online TEFL courses have come a long way. A quality online course covers lesson planning, classroom management, grammar instruction, teaching methodology, and how to work with students at different levels. You study at your own pace, there's no travel cost, and you can complete the whole thing in four to six weeks around your current job or commitments.

In-person or blended courses (online study combined with observed teaching practice) are worth considering if you've never stood in front of a classroom before and want that extra confidence before your first job. They tend to cost more and take longer, but the practical teaching component can be genuinely valuable if you're anxious about classroom management.
The honest truth is that most people who get TEFL certified online go on to be excellent teachers. The skill develops in the classroom. The course gives you the foundation.
What Else to Look For Before You Buy
Job support after certification. Some providers offer a job board, employer connections, or CV guidance as part of the course. This varies a lot in quality, check what's actually included, not just whether it's mentioned on the sales page.
Tutor access. Can you ask questions during the course, or are you completely on your own? Good providers include access to a real tutor, not just automated quiz feedback.
Course content quality. Look for providers who are upfront about their curriculum. Topics should include teaching methodology, lesson planning, language analysis, classroom management, and working with different age groups and levels.
Certificate recognition. Ask specifically whether the certificate is accepted for the country or job type you're targeting. A provider worth trusting will give you a straight answer.
A Note on Price

You don't need to spend thousands to get a legitimate, employable TEFL qualification. The market has a wide range and the most expensive option isn't always the best for your situation.
What you're paying for matters more than the number. A mid-range online course from a credible, accredited provider will often give you exactly what you need to land your first teaching job abroad. What you should be wary of are the very cheapest courses (under £50) that tend to offer minimal content, no tutor support, and certificates employers won't recognise and the very priciest options that may be adding a brand premium you don't actually need for your goals.
The sweet spot for most native English speakers is a fully accredited 120-hour course that includes tutor support, a recognised certificate, and clear information about what the qualification allows you to do.
Ready to Take the Next Step?
At Go TEFL, our course is built for people who are serious about teaching abroad, not just getting a certificate to tick a box. It's fully accredited, 120 hours, and designed to give you practical skills alongside the qualification employers actually recognise.
If you want to teach in Thailand, Vietnam, Spain, Germany, or anywhere else on your list, this is where to start.
About the Author
Ishbel is a TEFL-certified English teacher and the founder of Go TEFL. She has taught in Thailand, across Europe, and back home in the UK, and built the Go TEFL course around everything she wishes she had known when she started: The practical stuff, the honest stuff, and the things no one tells you until you're already standing in front of a classroom. She shares the real side of teaching abroad on YouTube at @ishbelrose.

Ready to get certified? Explore the Go TEFL 120-hour accredited course at wearegotefl.com
Want to read more? Here are a few guides I’ve put together:
How to Teach English Abroad in 2026: A Step-by-Step Guide for Beginners
TEFL, TESOL, CELTA, DELTA — What Do They Actually Mean?
10 Best Places to Teach English Online in 2026
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