Every year, millions of people worldwide sit English language proficiency exams in pursuit of visas, university places, and professional registration. In the United Kingdom, three acronyms dominate this landscape: IELTS, TOEFL, and CEFR. Understanding how these systems relate to one another - and to the UK's specific immigration and academic requirements - is essential for anyone navigating the process. This guide breaks down what each exam measures, how scores translate, and what the Home Office and UK universities actually require.
What is the CEFR and why does it matter?
The Common European Framework of Reference for Languages (CEFR) is not an exam. It is a descriptive scale - a shared vocabulary for discussing language proficiency across borders. Developed by the Council of Europe and first published in 2001, the CEFR defines six levels from A1 (basic user) through C2 (proficient user). The framework was updated with a companion volume in 2020, introducing concepts such as mediation, online communication, and plurilingual competence.
In the UK, the CEFR has become the lingua franca of immigration policy. The Home Office uses CEFR levels to determine the English language requirements for every visa category. A family visa applicant needs A1 for entry clearance and A2 for extension. Skilled workers require B2. Students at degree level need B2; those on courses below degree level need B1. These thresholds are not arbitrary - they correspond to measurable communicative competencies that the government considers necessary for integration.
The CEFR's influence extends beyond immigration. UK universities increasingly reference CEFR levels in their admissions criteria, and professional bodies such as the General Medical Council and Nursing and Midwifery Council use CEFR-aligned thresholds for registration. For test takers, the practical consequence is clear: regardless of which exam you choose, your score will ultimately be interpreted through a CEFR lens.
IELTS: the UK's preferred test
The International English Language Testing System (IELTS) is jointly managed by the British Council, IDP: IELTS, and Cambridge University Press & Assessment. It is the most widely accepted English language test in the UK and is the only test accepted for all visa categories under the Home Office's Secure English Language Test (SELT) framework.
IELTS comes in two variants: Academic and General Training. The Academic module is designed for university admissions and professional registration, while General Training is oriented toward migration and work experience. Both modules assess four skills - listening, reading, writing, and speaking - on a band scale from 1 to 9. Scores are reported in half-band increments.
For UKVI purposes, the specific test variants approved by the Home Office are "IELTS for UKVI" and "IELTS Life Skills." The UKVI version is taken under additional security conditions, including video recording and enhanced identity verification. Results are valid for two years and can be verified through the IELTS SELT Consortium's Online Verification Portal.
The minimum IELTS scores mapped to CEFR levels are well established. A B2 requirement corresponds to an overall band of 5.5 with no component below 5.5. A C1 requirement corresponds to an overall band of 7.0 with no component below 7.0. These mappings are not precise equatings - the CEFR was never designed as a testing framework - but they represent the practical equivalence that institutions and the Home Office have adopted.
TOEFL: the American rival
The Test of English as a Foreign Language (TOEFL) is administered by the Educational Testing Service (ETS) and remains the dominant proficiency test in the United States. Historically, its acceptance in the UK has been more limited than IELTS, though most UK universities now recognise TOEFL scores for admissions purposes.
The TOEFL iBT test assesses reading, listening, speaking, and writing, each scored on a scale of 0 to 30, yielding a total score out of 120. In January 2026, ETS introduced a revised scoring system that maps directly to CEFR levels on a scale of 1 to 6 in half-point increments. This change was explicitly designed to make TOEFL scores more intuitive for international institutions accustomed to CEFR-aligned reporting.
Under the new scale, a TOEFL score of 5 on any section aligns with C1 proficiency, while a score of 4.5 corresponds to B2. The updated system aims to provide consistent scores across each section - meaning a 5 on Reading indicates the same proficiency level as a 5 on Writing - a consistency that was not guaranteed under the old 0-120 scale.
However, the Home Office does not currently accept TOEFL for visa applications. For immigration purposes, UKVI-approved tests are limited to IELTS for UKVI, Trinity College London's ISE or GESE, LANGUAGECERT, Pearson's PTE Academic UKVI, and PSI's Skills for English. TOEFL remains relevant for university admissions and professional registration, but it cannot substitute for a SELT in the immigration context.
How the UK government uses CEFR thresholds
The UK's immigration system assigns different CEFR requirements to different visa routes, reflecting the communicative demands of each category. The framework is detailed in Appendix English Language of the Immigration Rules.
Family visa applicants must demonstrate A1-level speaking and listening for entry clearance, rising to A2 for extensions. This is assessed through the IELTS Life Skills A1 and A2 tests, which evaluate only speaking and listening - the skills considered most critical for basic family integration.
Skilled workers face a B2 requirement across all four skills, reflecting the need to function effectively in English-language workplaces. The threshold was raised from B1 to B2 for most new applicants following policy changes in early 2026, a shift that has significant implications for international recruitment.
Student visa applicants at degree level (RQF 6 and above) also need B2, while those on sub-degree courses need B1. Crucially, students sponsored by higher education providers with a track record of compliance may have their English language ability assessed by the institution itself rather than through a SELT, provided the Confirmation of Acceptance for Studies confirms that the applicant has been assessed to B2 or above.
The consequences of failing to meet these thresholds are straightforward: the application is refused. There is no discretion for borderline cases. An IELTS score of 5.0 does not satisfy a B2 requirement, regardless of how close it might appear.
Choosing the right exam
For most candidates seeking to study, work, or live in the UK, the choice of exam is effectively made for them. UKVI requirements dictate that only approved tests with approved providers can be used for visa applications. Within those options, IELTS for UKVI is by far the most commonly taken.
For university admissions, where immigration is not a factor, candidates have more flexibility. Many institutions accept both IELTS Academic and TOEFL iBT, and some accept alternatives such as PTE Academic, Cambridge C1 Advanced, or Duolingo English Test. The key is to verify the specific requirements of the target institution, as score equivalents vary.
A joint concordance study published in 2025 by the IELTS Partners and ETS provided updated comparison tables between IELTS Academic and TOEFL iBT. The study, which involved 937 test takers who sat both exams, found moderate to strong correlations across all sections. However, the authors cautioned that concordance tables should not be treated as evidence of interchangeability - the tests differ in construct, format, and scoring methodology, and institutions should use them as one input among several in their admissions decisions.
Preparing strategically
Regardless of which test a candidate ultimately sits, preparation should be informed by an understanding of what each exam actually measures. IELTS rewards precision and accuracy in a traditional pen-and-paper (or computer-delivered) format. TOEFL rewards integrated skills - tasks that combine reading, listening, and speaking in a single prompt - and requires comfort with academic content.
For CEFR-oriented preparation, the framework's descriptors provide a useful roadmap. A B2 candidate can "understand the main ideas of complex text on both concrete and abstract topics" and "interact with a degree of fluency and spontaneity." A C1 candidate can "express ideas fluently and spontaneously" and "use language flexibly and effectively for social, academic and professional purposes." These are not just exam objectives - they are communicative competencies that shape how test takers should organise their study.
The stakes are high, the requirements are specific, and the margin for error is narrow. For anyone navigating the UK's English language testing landscape, understanding the relationship between IELTS, TOEFL, and the CEFR is not optional - it is foundational.
Related reading: Guide to Premier British UK Independent Schools and Colleges
