What is TEFL and What is TEFL Certification?

Key TEFL Takeaways - What do you need to know about TEFL?

• What is it? TEFL is a required credential that provides the training and qualifications you need to get paid to teach English abroad and online to non-native speakers.
• Requirements: A professional course requires 100+ hours of study, accreditation, and a live teaching practicum.
• The Payoff: You get paid to live, travel, and work overseas! In 2026, teachers in top markets like South Korea can earn enough to save $500-$1000 a month after expenses and receive benefits like paid vacation.
• Digital Freedom: Hundreds of thousands of teachers now teach English online, allowing them to live as digital nomads in amazing countries like Spain, Mexico, and Vietnam.

TEFL Meaning: What is TEFL?

"TEFL" stands for Teaching English as a Foreign Language. It refers to the practice of instructing English to non-native speakers, typically in countries where English is not the primary language. It is often used in the context of “TEFL certification,” which provides the training and credentials you need to get hired to teach English abroad or to teach English online.

The Bottom line: Unless you have a degree in teaching English to speakers of other languages (TESOL), you need a TEFL certification to get paid to teach English overseas or online. An accredited TEFL certification will qualify you for thousands of professional-level English teaching jobs around the globe, even if you don’t have prior teaching experience or even a college degree.

Is TEFL the same as TESOL?

In the global education industry, TEFL is basically a subset of TESOL (Teaching English to Speakers of Other Languages). 

• TEFL focuses on teaching abroad,

• TESOL typically refers to teaching non-native speakers living in English-speaking countries like the U.S. in public schools or colleges. 

• The Bottom Line: For teaching English abroad, a TEFL certification is what you need.

Read More: TEFL, TESOL, TESL, CELTA, DELTA: What's The Difference?

What is TEFL certification?

A TEFL certification is an internationally recognized professional credential that certifies that an individual is qualified to teach English as a foreign language. TEFL certification is typically required to secure a job teaching English abroad or online to non-native English language students.

A valid TEFL certificate proves that an individual has completed the necessary pedagogical training to manage a classroom and deliver effective lesson plans. You will likely use your TEFL certificate primarily to teach English abroad and online. 

What are the requirements for a professional-level TEFL certification course?

Professional-level TEFL courses must meet certain standards and include live practice teaching. You will encounter many similar-sounding programs and TEFL courses while searching on the Internet.  BE AWARE: NOT ALL TEFL COURSES ARE THE SAME!

These standards include:

• At least 100 hours of coursework;
• At least 6-20 hours of practicum (live practice teaching and observation with actual non-native English speakers and NOT role-playing with fellow TEFL classmates);
• An accredited curriculum from a recognized, independent organization within the field;
• Instruction provided by a qualified instructor (who has an equivalent to a Master's Degree in TESOL or a related field);

In addition to academic components, it is important to seek out a TEFL program that provides the support, guidance, and resources you need to navigate international job markets and actually get hired.     

Read More:

• 7 Key Tips to Evaluate a TEFL / TESOL Training School
• Level 5 Accreditation for TEFL Certification
  
  

Where can I find legitimate TEFL certification course options?

Websites like Goabroad.com and GoOverseas.com provide listings and thousands of reviews of TEFL courses and teach-abroad opportunities.  International TEFL Academy offers 25 accredited TEFL courses, both online and in-person, worldwide. It's important to conduct thorough research to ensure any program you consider is properly accredited and includes services such as job search guidance. 

TEFL vs. CELTA: Which Certification is Right for You?

CELTA is a well-regarded brand of TEFL certification based in the U.K. Choosing between other TEFL certifications and CELTA depends on your goals and your budget. CELTA courses typically focus on teaching adult learners and, in the past, were sometimes preferred in Europe and the Middle East.  International TEFL Academy (ITA) provides TEFL certification at OFQUAL Level 5, which is the same as the CELTA. ITA offers greater flexibility (online or in-person), lifetime job search guidance, and training for all ages, making it ideal for those seeking a global career with robust support.

How large is the market for English education worldwide?

From Costa Rica to Vietnam, the global demand for English instruction is at an all-time high, driven by the language's role as the primary "lingua franca" for international business, technology, and academia. The bottom line is that people need and want to learn English because it enables them to improve their professional and education-related opportunities.

• $100 Billion+ Market Value: According to Global Market Insights, the global language learning market is projected to reach $101.5 billion USD in 2026. 
• 1.5 Billion+ Active Learners: Estimates from the British Council and various educational census reports indicate that over 1.5 billion people are actively learning English globally—roughly 20% of the world's population.
• The "Speaking" Gap:  The 2025 EF English Proficiency Index reveals that speaking remains the most significant skill gap for learners worldwide. This reinforces the need for TEFL-certified teachers to provide the nuanced, conversational training that local teachers or automated apps often fail to deliver.

Workplace Requirement: Data from major recruitment platforms shows that approximately 70% of multinational companies now list English proficiency as a mandatory requirement for management and technical roles.

Is it possible to earn a valid TEFL certification online?

Yes! You can earn a valid TEFL certification online, provided the course meets international standards for duration and practicum. Accredited online TEFL courses are widely accepted by employers in Europe, Asia, Latin America, and the Middle East.

However, "fast-track" or "cheap" online certificates that lack a live teaching component (practicum) are often rejected by reputable schools. Here's a comparison of online TEFL certification providers: 

Read More: Accredited Online TEFL Certification Courses

Will a TEFL Certification qualify you to teach English online?

Most major online English teaching platforms require a TEFL certification to hire you. Becoming TEFL-certified allows teachers to teach English from the comfort of home and to work as digital nomads, earning between $10–$20 USD per hour while working from anywhere in the world. Many English teachers abroad teach English online part-time to earn extra cash. 

Read More: Teaching English Online Explained

If you're considering teaching English online, you can also decide to enhance your online teaching skills to make yourself more marketable with online language schools. Look into post-TEFL certification advanced specialty courses for teaching English online. They are add-on trainings that will further your TEFL certification skills and apply them specifically to the world of teaching English online. 

Read More: Teaching English Online Specialty Course

Sample of an International TEFL Academy certificate.

Why is International TEFL Academy a top-rated provider?

International TEFL Academy (ITA) is widely recognized as a global leader in TEFL training, holding an A+ rating from the Better Business Bureau. ITA-run TEFL Courses are accredited at Level 5 by OFQUAL, the same professional-level accreditation as the top-rated TEFL courses like CELTA. Over the past decade, ITA has consistently been ranked the #1 TEFL school by GoOverseas and GoAbroad. 

ITA provides students with lifetime job search guidance and premium Guaranteed Job Placement Programs, ensuring graduates find great teaching positions in over 80 countries. 

Read More:  International TEFL Academy Mission Statement

So get in touch! Call us or fill out a form, and you'll be assigned a personal advisor who's taught English and/or lived overseas. Feel free to ask them anything, including about their own experience, and they'll be happy to help!