The UK independent school admissions process has changed substantially in the past five years, and most of what parents new to the system read online is partly out of date. The ISEB Common Pre-Test is now the standard 11+ assessment used by the great majority of senior schools. Registration timelines have moved earlier. Competition for places at the top tier has intensified. This is the working guide for families navigating UK independent school admissions in 2026.
The structure of the system
UK independent schools — sometimes called private schools or public schools (a confusing British term for fee-paying schools, the opposite of its American meaning) — operate in tiers:
- Pre-prep schools (typically ages 3-7 or 4-8): the earliest fee-paying phase, feeding into prep schools.
- Prep schools (typically ages 7-13 or 8-13): the bulk of the preparatory period, ending with the 13+ Common Entrance examination.
- Senior schools (typically ages 11 or 13 to 18): the GCSE and A-Level years. Some take pupils at 11+, others at 13+, and a number now offer both entry points.
The structural decision a parent must make first: 11+ entry to a 11-18 senior school, or 13+ entry through prep school and Common Entrance. The 11+ pathway is more straightforward; the 13+ pathway is the more traditional route into schools like Eton, Harrow, Winchester, and Radley.
The ISEB Common Pre-Test — what changed
The ISEB (Independent Schools Examinations Board) Common Pre-Test is now the universal pre-test used by the great majority of senior independent schools to assess pupils applying for 11+ or 13+ entry. Taken when a child is in Year 6 (age 10-11), the test is computer-based, multiple-choice, and covers four subject areas: English, mathematics, verbal reasoning, and non-verbal reasoning.
What changed: the test is now adaptive, can only be taken once per academic year per school group, and the results follow the candidate across multiple schools. This makes preparation more consequential than it was a decade ago — there is no longer a meaningful second chance.
The timeline — when to do what
For 11+ entry to a senior school in September of Year 7:
- Year 4 (autumn of two years before entry) — register at target senior schools. Most schools require registration by a specific date (typically autumn or summer of Year 5 at the latest). The application fee at this stage is typically £200-£400 per school.
- Year 5 (spring/summer) — most schools confirm the candidate is on the official register.
- Year 6 (autumn) — the ISEB Common Pre-Test, taken at the candidate’s current school.
- Year 6 (late autumn/winter) — interviews and additional assessments at the candidate’s chosen senior schools.
- Year 6 (February) — most senior schools issue offers.
For 13+ entry through Common Entrance, the registration timeline is similar but stretches to Year 8 for the final examinations.
The top tier — and what they look for
Eton, Harrow, Winchester, Radley (boys, boarding)
All four schools admit at 13+ via Common Entrance, with the Eton List process (an early academic and interview screening) typically beginning in Year 5. Eton’s list now closes when boys are approximately 10 and a half. Harrow’s list operates similarly.
Westminster, St Paul’s, City of London (boys, day)
London’s leading boys’ day schools admit at 11+ and 13+. Westminster and St Paul’s are the most academically selective day schools in the UK and accept fewer than 25% of applicants at either entry point.
Wycombe Abbey, St Paul’s Girls’, North London Collegiate, Cheltenham Ladies’ (girls)
The historically selective girls’ boarding and day schools. Wycombe Abbey remains the most academically selective girls’ boarding school in the UK by exam results.
Marlborough, Cheltenham College, Oundle (co-ed, boarding)
The selective co-educational boarding schools, all admitting at 11+, 13+, and 16+ (sixth-form entry).
The fees — and what they actually cover
Tuition fees at UK independent senior schools for 2026 typically run:
- Day fees: £24,000-£32,000 per year at the top London day schools.
- Full boarding fees: £45,000-£62,000 per year at the leading boarding schools.
Note: these fees rose substantially in 2025 following the imposition of VAT on private school fees in the UK (effective January 2025). Many schools have absorbed part of the increase; many have not.
The fees cover tuition but typically exclude examination fees, certain trip costs, music lessons, and the inevitable expenses of school life (textbooks, sports kit, etc.).
The realistic admissions math
At the most selective end of the UK independent school market, acceptance rates have fallen to roughly 10-20% at the top tier. For a family targeting Eton, Westminster, St Paul’s, or Wycombe Abbey, the realistic strategy is to apply to a minimum of four schools, prepare the candidate genuinely (the ISEB Common Pre-Test is not a test the candidate can simply walk into), and have a strong second-tier list in place.
An experienced UK independent school admissions consultant is, for most overseas families, worth the fee — typically £4,000-£12,000 for a full package, depending on the level of guidance required.
