What's in this guide
- What “accreditation” means for TEFL courses
- Authorities and registers to check (step-by-step)
- Minimum red flags and proofs you must see on a provider page
- How to verify common claims (mini-cases)
- Typical TEFL qualification formats and what they imply for quality
- If the course is online or offered by a private platform
- Template emails / questions to send to an awarding body or regulator
- What to do if you cannot verify
- Quick reference facts (compact bullets)
- Sources and last-checked date
- What we do not know (explicit gaps readers should note)
- Verification note — last checked 27/09/2026
This guide explains how to verify whether a TEFL/TESOL course or provider is legitimately accredited, and which registers and documents to consult to confirm claims such as CELTA, CertTESOL, Ofqual Level 5 or ACCET accreditation (last-checked 27/09/2026).
What “accreditation” means for TEFL courses
Accreditation and regulation operate at different levels. Accreditation commonly refers to an institutional recognition granted by an accreditor to a training organisation. Regulation or awarding-body validation refers to the status of a specific qualification and the approved centres that deliver it.
Example: CELTA is a Cambridge English qualification delivered through authorised centres; the CELTA syllabus sets a minimum of 120 contact hours including assessed teaching practice and observation. The Cambridge pages describe the course and syllabus and were consulted on 27/09/2026.
Example: Trinity CertTESOL is a Trinity College London qualification classed at Level 5 on the UK frameworks and is delivered by validated centres; Trinity’s pages set out the qualification level and requirements and were consulted on 27/09/2026.
Example: ACCET is an accrediting council that accredits institutions in the US; ACCET accreditation concerns the institution, not automatically the equivalence of a short TEFL certificate with CELTA or CertTESOL. The ACCET site was consulted on 27/09/2026.
Authorities and registers to check (step-by-step)
Check primary authorities first. For each authority below, search the register for the provider name, qualification title or centre ID. A presence on the register or a centre listing is the clearest confirmation of legitimacy.
Ofqual Register (UK qualifications)
What to search: qualification title or awarding organisation. What confirms legitimacy: the qualification appears with a recognised level (for example Level 5) and an Ofqual qualification number linked to the awarding body. Use the qualification name and awarding body fields when searching.
Cambridge English / CELTA authorised centres
What to search: centre name or course listing. What confirms legitimacy: the centre appears on Cambridge’s authorised centres list with clear CELTA course dates or an entry showing it is authorised to deliver CELTA. Copy-paste phrase to use when contacting Cambridge: “Please confirm whether [centre name] is an authorised CELTA centre and whether the course titled [course name] held on [dates] was authorised.”
Trinity College London — CertTESOL validated centres
What to search: centre name or CertTESOL mention. What confirms legitimacy: the centre is listed as validated for CertTESOL or Trinity provides a statement linking the centre to the qualification. Copy-paste phrase to use when contacting Trinity: “Can you confirm whether [centre name] was validated to deliver CertTESOL on [dates] and whether the candidate assessment was externally moderated?”
ACCET (US institutional accreditation)
What to search: institution name on ACCET’s accredited institutions list. What confirms legitimacy: the institution appears on ACCET’s list; note that ACCET accredits institutions, so you must still check whether a specific TEFL course is issued or externally moderated by an awarding body. Copy-paste phrase to use when contacting ACCET: “Is [institution name] currently accredited by ACCET and does that accreditation cover the course titled [course name]?”
Minimum red flags and proofs you must see on a provider page
Before relying on a course, require these verifiable items on the provider’s course page or by direct evidence:
Signs to distrust or treat as red flags:
How to verify common claims (mini-cases)
Below are short, actionable checks for frequent marketing claims.
Claim: “Level 5 / RQF”
Search the Ofqual Register for the qualification title and awarding body. Confirm the qualification number and the awarding organisation listed. If the claim lacks an Ofqual entry or qualification number, request the exact Ofqual qualification number and verify it on Ofqual’s site.
Claim: “Accredited by ACCET”
Search ACCET’s accredited institutions list for the institution name. Remember ACCET accredits institutions: if found, ask the provider whether the TEFL course is administered under that accreditation and request documentary confirmation or link to the ACCET listing showing the scope.
Claim: “Equivalent to CELTA”
Equivalence must be demonstrated by an awarding body or regulator statement. Ask the provider for a formal statement from the awarding body or for an entry on a regulator register showing equivalence. Absent that, treat “equivalent” as an unverified marketing claim.
Typical TEFL qualification formats and what they imply for quality
Some qualifications have explicit, published requirements. For CELTA, Cambridge describes a minimum of 120 contact hours including assessed practice and observation. For Trinity CertTESOL, Trinity describes the qualification as a Level 5 with a total qualification time and requirements for practice and assessment. These published requirements indicate external moderation and observed teaching practice, which are quality markers.
Many TEFL certificates vary in duration and format. Short online courses without externally moderated assessed teaching practice do not meet the published standards of CELTA or CertTESOL. When a provider claims parity, require external confirmation from the awarding body or regulator.
If the course is online or offered by a private platform
Online delivery is not automatically illegitimate, but you must verify external moderation and centre validation. Look for:
- A statement that assessments are externally moderated by the awarding body or an external examiner.
- A validation link to the awarding body showing the provider or centre is authorised to deliver that qualification online.
- Sample moderated assessments or a mechanism to view moderated marks where provided.
Note: ACCET may accredit online institutions at the institutional level; check ACCET’s list and confirm whether the specific course sits within the accredited scope.
Template emails / questions to send to an awarding body or regulator
Use short, factual queries when contacting bodies. Three copyable examples:
What to do if you cannot verify
If the register search and direct enquiries do not confirm claims, follow a cautious decision path:
- Do not pay full fees until you receive verifiable documentation or a regulator/awarding-body confirmation.
- Ask for a centre ID, moderator name or a link to the exact register entry showing the qualification or validation.
- Prefer courses that include observed assessed teaching practice and that are listed on an awarding body or regulator register.
- If career requirements demand a recognised credential, consider CELTA or CertTESOL only if their registers confirm the centre and course.
Refer back to the “What we do not know” block below for acknowledged gaps in coverage on this page.
What we do not know (explicit gaps readers should note)
This page does not claim that a single international TEFL accreditation exists; no single global accreditor for TEFL was identified here. This page does not provide exhaustive lists of providers accredited by ACCET; each provider must be checked individually on the listed registers. This page does not assert equivalence between ACCET-accredited courses and CELTA/CertTESOL unless a regulator or awarding body provides a formal statement to that effect. Any course hours or other numeric claims not explicitly cited from the sources above were not verified here.
Verification note — last checked 27/09/2026
Before accepting accreditation claims, confirm directly with the awarding body or regulator (Cambridge English, Trinity College London, Ofqual, ACCET). The information above was checked on 27/09/2026 against the listed primary URLs. Always request and verify centre IDs, qualification numbers or regulator entries and keep correspondence or screenshots as proof of verification.
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Priya Nakamura
Priya has trained new TEFL candidates and assessed teaching practice for in-person and online courses for over eight years. She specialises in the unglamorous part of choosing a course: hours, observed practice, and who…
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