TEFL Qualifications and Terminology Explained

TEFL, TESOL, TESL, ESL, EFL, ELT and ESOL describe the same broad field from different angles. TEFL means teaching English as a foreign language, usually abroad. TESOL covers speakers of other languages in any country. ESL and EFL describe the learner’s setting rather than the teacher’s qualification. Most employers ask for a TEFL or TESOL certificate of at least 120 hours.

The words are used loosely across the industry, and that vagueness costs people money when they buy the wrong course. This page gives one plain definition for each term, says which qualification a job advert is usually asking for, and links to a fuller guide on each. Where a claim involves regulation or an awarding body, the identifier is given so you can check it on a public register.

Key takeaways

• Most of these acronyms describe the setting, not the certificate. ESL, EFL and ESOL tell you where and to whom English is being taught. TEFL, TESOL and TESL are the ones that appear on qualifications.
• TEFL and TESOL are treated as interchangeable by most employers. Where a job advert names one, a good certificate in the other is almost always accepted.
• 120 hours is the international benchmark most schools and online platforms ask for.
• Level 5 is a level, not a brand. It refers to a place on the Regulated Qualifications Framework in England, and a Level 5 TEFL diploma sits alongside a higher education diploma on that framework.
• Regulated and accredited are not the same thing. Regulation means a government body polices the qualification. Accreditation usually means a private organisation has issued a seal against its own standards.

The TEFL acronyms at a glance

The single table most people need. Every term, what it stands for, and what it actually tells you.

What is the difference between ESL, EFL, ELT and ESOL?

These four describe the learning situation rather than the teacher’s certificate. ESL means learners studying English while living in an English speaking country. EFL means learners studying it in a country where English is not the everyday language. ELT is the umbrella term for the profession as a whole. ESOL is the term used in UK and Irish adult and further education.

The practical consequence is that none of them is something you qualify in. You do not buy an ESL certificate in the way you buy a TEFL certificate. If a job advert asks for an ESL teacher, it is describing the students, and a TEFL or TESOL qualification is what it wants to see. Our fuller guides cover what an ESL teacher actually does and what people mean by ESL certification.

What is the difference between TEFL, TESOL and TESL?

TEFL, TESOL and TESL are the three that appear on qualifications, and in hiring practice they overlap almost completely. TEFL leans towards teaching abroad, TESOL is the broader framing and is more common in North America, and TESL specifically means teaching people who have settled in an English speaking country.

Most employers treat a good TEFL certificate and a good TESOL certificate as equivalent. What they look at is the number of hours, whether the qualification is regulated, and who awarded it. The full TEFL and TESOL comparison sets out where the wording genuinely matters.

How does CELTA compare with a Level 5 TEFL qualification?

Both can support a teaching application, and they are different kinds of thing. CELTA is a specific Cambridge assessed qualification with its own entry requirements and observed teaching practice. A Level 5 TEFL diploma is a regulated qualification at a defined framework level, which means it carries a qualification number on a public register.

Which suits you depends on how you want to study and what the roles you are targeting ask for. The cost and recognition comparison goes through both in detail.

What does Level 5 mean, and what is the RQF?

Level 5 is a position on the Regulated Qualifications Framework, the system used in England to compare qualifications by demand rather than by subject. A Level 5 qualification sits at a similar level of demand to a higher education diploma or the second year of a degree.

Because the framework is regulated by Ofqual, the UK government qualifications regulator, a Level 5 TEFL qualification appears on a public register with its number, level, credits and status. Our own Level 5 Diploma is qualification 610/1571/4 and the Level 5 Advanced Diploma is 610/1573/8, both awarded by Highfield Qualifications, which holds Ofqual recognition RN5219.

Regulated or accredited: which should you look for?

Look for regulated first, because it is the stronger and more checkable claim. Regulation means a government body sets and polices how the qualification is designed, assessed and awarded, and the result is a register entry anyone can search. Accreditation usually means a private organisation has reviewed a provider against its own standards and issued a seal.

Good accreditation adds real value, and the phrase internationally accredited on its own has no legal definition, so it is worth asking which body and which reference number. We set out every credential we hold, with its identifier and a link to the issuing body, on our accredited TEFL certification page, and the distinction itself in accredited versus regulated TEFL. Once you hold the certificate, how employers verify a TEFL certificate sets out the checks a hiring school actually runs.

What these qualifications look like in practice

The hours and the acronyms above matter because employers and immigration authorities set the requirement, and the requirement varies far more by country than most guidance admits. Three worked examples, each built on a published government rule rather than an estimate:

• Teach English abroad from Canada — South Korea’s EPIK programme names a TEFL, TESOL or CELTA certificate of at least 100 hours as a stated condition when your degree is not in education, and it must be finished no later than six weeks before you arrive. This is the clearest example anywhere of the hours question having a hard answer.
• Teaching English in Singapore — the opposite case, and a useful corrective. Singapore gates entry on an Employment Pass salary floor rather than on qualifications, so no amount of training changes the answer. Worth reading before assuming more hours always open more doors.
• Teaching English in Sweden — where your passport decides more than your certificate. Irish and EU citizens work freely; a British passport meets a work permit salary threshold that English teaching does not reach.

Frequently asked questions

Is TEFL or TESOL better?

Neither is better as a rule, and most employers accept either. TEFL is the more common wording for teaching abroad and TESOL is broader and more common in North America. What matters more is the number of hours, whether the qualification is regulated, and which body awarded it.

What does ESL stand for?

ESL stands for English as a Second Language. It describes learners studying English while living in a country where English is spoken, so it tells you about the students rather than about the teacher’s qualification.

Is ESL the same as TEFL?

No. ESL describes the learner’s situation and TEFL is a teaching qualification. A job advert asking for an ESL teacher is describing who you would teach, and it usually expects a TEFL or TESOL certificate.

What does ESOL mean in the UK and Ireland?

ESOL means English for Speakers of Other Languages. In UK and Irish adult and further education it usually refers to provision for people who live in the country and need English for work, study or daily life, often through publicly funded courses.

Is a Level 5 TEFL qualification the same as a degree?

No. Level 5 describes the level of demand on the Regulated Qualifications Framework, comparable to a higher education diploma or the second year of a degree. It is a qualification at that level, not a degree in itself.

How many TEFL hours do employers ask for?

120 hours is the international benchmark most schools and online platforms ask for. Longer regulated qualifications go further and carry a public register entry, which helps in competitive markets and for visa applications.