Beaconsfield High School Sixth Form Entry Requirements

Beaconsfield High School is a selective girls' grammar school in Buckinghamshire whose sixth form, Becky High Sixth, admits external students into Year 12 on GCSE grades alone. The school's published bar is 46 points from the best eight GCSEs for September 2026 entry and 48 points for September 2027, with a Grade 5 minimum in English and Maths. Its 2026 policy set the external intake at 30 places. There is no entrance test and no interview.

That two-point difference is the reason this page exists. Beaconsfield High publishes its Admissions Policy for 2026 entry and its Admissions Policy for 2027 entry side by side on the same page of its website, and the two documents set different bars. Every other page ranking for this search quotes the lower figure, because the lower figure is the one printed on the school's sixth form admissions page. A girl now in Year 10, planning her GCSE effort around what she reads online, is working to a target that will not be the one applied to her.

Who Becky High Sixth Admits, and Who It Does Not

Beaconsfield High School is a girls' school at every point of entry, and the sixth form is not an exception to that. The published admission number table in the Admissions Policy for 2027 entry reads “Year 12 — 200 girls” and “Year 13 — 200 girls”, in the same column as “Year 7 — 186 girls”. Every clause in the sixth form section is written in the same terms: “Applications from external girls should be made directly to the school”; “The minimum entry requirements are the same for both internal and external girls”.

This matters because the pattern is not universal among selective schools. A number of single-sex secondary schools open their sixth forms to the other sex at 16, which turns 16+ into the only way in for a pupil who could never have applied at 11. Beaconsfield High does not do this. A boy in Beaconsfield has no route into Becky High Sixth at any age, and any advice that treats the sixth form as a co-educational back door into a Buckinghamshire grammar is wrong about this school. Families in that position are looking at a different set of schools entirely, and our page on Aylesbury Grammar School sixth form entry covers the boys' equivalent in the same county, where the points formula sits at a different figure again.

The second eligibility question the school answers, and almost nobody asks until it is too late, concerns Year 13. The 2027 policy devotes one sentence to it: “No places will be made available in Year 13 due to the nature of the curriculum.” A family relocating into Buckinghamshire midway through a two-year A-Level programme has no application to make here. The door is Year 12 or nothing.

The Points Bar Moved: 46 for 2026 Entry, 48 for 2027

Beaconsfield High converts GCSE grades to points on a one-to-one scale. A Grade 9 is worth nine points, a Grade 8 is worth eight, and so on down to a Grade 1 worth one point. The school's own table on its sixth form admissions page prints the conversion in full: “Grade 9 8 7 6 5 4 3 2 1 — Point Score 9 8 7 6 5 4 3 2 1”. Only the best eight subjects count. There is no weighting for English or Maths in the aggregate, no bonus for a ninth or tenth GCSE, and no discounting of a subject the school does not offer at A-Level.

What changed between the two live policies is the total that aggregate has to reach.

Source: Beaconsfield High School Admissions Policy for 2026 Entry and Admissions Policy for 2027 Entry, plus the school's Sixth Form Admissions and Apply page.

Two points on an eight-subject aggregate is not a rounding adjustment. On the school's own scale it is the difference between eight Grade 6s (48 points, which clears the 2027 bar exactly) and a profile of seven Grade 6s and a Grade 4 (46 points, which cleared 2026 and does not clear 2027). Put another way: under the 2026 rule a girl could average a shade under Grade 6 across her best eight and qualify. Under the 2027 rule she cannot. She needs a clean Grade 6 average, or a couple of Grade 7s to carry a weaker subject.

The four-subject threshold moved in the opposite direction, and this is the detail most likely to be misreported. The school's admissions page, written for the 2026 cycle, says: “To be eligible for four A-Levels, students must achieve at least 64 points from their best eight GCSEs.” The 2027 policy says: “Those wishing to take 4 subjects must achieve a minimum of 63 points.” So the general bar rose by two while the fourth-subject bar fell by one. A girl targeting four subjects for September 2027 needs 63 points, which is an average just under Grade 8 across eight GCSEs — still a demanding profile, and the school is explicit elsewhere that it does not encourage a fourth A-Level lightly, warning that “universities generally base offers on the three highest grades”.

One consequence worth stating plainly: neither figure is a prediction of what it takes to be offered a place. They are minimum thresholds for being considered. Where qualified external applicants outnumber the places, the school ranks them by actual GCSE aggregate, so the effective bar in a competitive year is whatever the last successful applicant scored, not 46 or 48.

Three Published Place Numbers, and Which One You Compete For

Beaconsfield High publishes three different numbers about its sixth form in three different places, and never reconciles them. They measure three different things.

Source: Beaconsfield High School admissions policies for 2026 and 2027 entry, and the school's Becky High Sixth page.

Only the first of the three is the number an external applicant competes for. The 2026 policy is unambiguous about it: “the Sixth Form Admission Number is 30. If more than 30 external candidates successfully meet the entry requirements, then the oversubscription criteria outlined below will determine which applicants are allocated the external places available after qualifying internal applicants are allocated their places.” Internal girls who meet the criteria are admitted first and are not counted against the 30.

The 2027 policy replaces that presentation with a whole-cohort published admission number of 200 girls, and drops the separate external figure altogether. This is a real change in how the school expresses its capacity, and it is easy to misread in a hopeful direction. A parent who sees 200 where the previous document said 30 may conclude the sixth form has expanded sevenfold. It has not. The 2027 number counts the roughly 190 girls the school already has in Year 12, the large majority of whom are its own Year 11 continuing upward. What the 2027 policy does not publish is how many of those 200 are reserved for outside applicants, which is a genuine reduction in transparency compared with the document it replaces.

The practical reading for a family: assume the external allocation is in the same range as the published 30, treat any year in which more girls stay on internally as a year in which fewer external places exist, and do not plan around the 200.

Clearing the Points Bar Does Not Get You the Subject

The aggregate is the headline. The subject gates are what actually stop applicants, and they are published only inside the school's A-Level Options Guide, a thirty-page PDF that no page currently ranking for this search appears to have opened. The Options Guide is explicit that the two requirements stack: “In addition to these general requirements, subject-specific entry criteria must also be met, as outlined in the table below.”

A selection of the gates that catch people out:

Source: Beaconsfield High School A-Level Options Guide, grade requirements for 2026–2027 entry. The Guide defines humanities as Geography, History and Religious Studies.

Read that table against a realistic profile and the arithmetic changes. A girl with 50 points from her best eight is comfortably over both aggregate bars, but if those points come from a spread of Grade 6s with a Grade 6 in Maths, Further Mathematics is closed to her, Mathematics is closed to her, Economics is closed to her, and all three separate sciences are closed to her. She has qualified for the sixth form and not for the subjects she wanted. Our page on A-Level Further Maths tutoring sets out what the Grade 8 gate is actually protecting against, which is the pace of the first term rather than the entry standard itself.

The school reserves the right to refuse a subject even to a girl who meets its grade: “Admission to the Sixth Form does not guarantee a specific course of study. Students who qualify for admission will be offered a combination of courses based on availability, group sizes, timetable limitations and subject demand.” The admissions page adds that admission “depends on whether the selected combination of courses can be accommodated within the school's timetable”. Twenty-eight A-Level subjects are offered, but not every combination of three of them is timetabled together in a given year.

Is There a 16+ Test or Interview at Beaconsfield High?

Neither the 2026 nor the 2027 admissions policy specifies any written test, aptitude paper or interview for entry to Year 12. This is a real difference from the independent sector, where 16+ entry routinely means subject papers sat in November and an interview the same day, and it is a difference from Beaconsfield High's own 11+ route, which is governed entirely by a test. At 16, the assessment is the GCSE certificate.

Three things do function as judgement points, and they are worth knowing.

The first is the subject-grade table above, which is the school's substitute for a subject paper. The second applies to applicants educated outside the UK: the policy requires “a recommendation for A level study… provided by their current school, including a judgement of an average of at least ‘very good’ for engagement and homework across all subjects in Year 11.” That is a qualitative reference with a stated threshold, and for an international applicant it carries the weight an interview would elsewhere. The third is the decision itself: “A panel from the management team at Beaconsfield High School will make all final decisions on admissions.”

The absence of a test has a planning consequence that families often get backwards. Because there is nothing to revise for beyond the GCSEs themselves, all the preparation value sits in Years 10 and 11, and none of it sits in the autumn of Year 11 when independent-school candidates are sitting papers. By the time a girl is filling in the application form in January, her outcome is already largely determined by two years of coursework and mock performance.

Does Catchment Apply at 16+ the Way It Does at 11+?

Buckinghamshire runs a county-wide selective system, and a family that has been through the 11+ there will have spent a year thinking about catchment. Buckinghamshire Council's co-ordinated scheme handles the Year 7 round — applications between 7 September 2026 and 31 October 2026 for the following September, with the Secondary Transfer Test as the gate and a qualifying score of 121. Beaconsfield High's 11+ oversubscription criteria are dense with geography: four of the tiers turn on whether a girl lives inside the catchment area, and straight-line distance orders applicants within them. The school even reserves up to ten places within its Year 7 published admission number for catchment-resident Pupil Premium girls who score at least 115 rather than the full 121.

None of that carries over to Year 12, and the policy says so in a single sentence that is easy to skim past. The main ranking tier at 16+ reads: “Girls whose normal home address is in or out of the catchment area of the school, to be offered in rank order of actual GCSE aggregate score for their best eight subjects.” In and out of catchment are ranked together, on grades.

Source: Beaconsfield High School Admissions Policy for 2027 Entry, sixth form oversubscription criteria.

So catchment operates at 16+ in exactly one tier, and distance operates only as a tie-break between girls with precisely the same score. For most applicants, where you live is irrelevant to the outcome. That makes Becky High Sixth more open to a girl from outside the immediate area than the school's Year 7 route is, and it is the single most useful correction a Buckinghamshire family can carry from the 11+ into the 16+ decision. If you are still weighing the earlier route, our guide to Beaconsfield High School 11+ entry covers the catchment and test side properly, and Aylesbury High School 11+ entry covers the county's other girls' grammar.

One point of process follows from this. Sixth form applications do not go through the council at all: “Applications from external girls should be made directly to the school by completing an application form available on the school's website.” The county co-ordinated scheme, the preference form and the March offer day that dominate the 11+ have no part in 16+ entry here.

The Six Places Below the Bar

Both policies carry a route that no page in the search results mentions. Up to six places are reserved for candidates “whose GCSE aggregate score from their best eight GCSE subjects would not otherwise meet the admissions criteria”. It is not a general appeal route. Eligibility is restricted to two groups: girls who are Looked After or previously Looked After, and girls who qualify for Pupil Premium or Service Premium at the time of application.

The reduction is precise, and it moved with the main bar. For September 2026 entry the floor was 44 points; for September 2027 entry it is 46. In both years the candidate must still hold Grade 5 in Mathematics and in English, and must still “have met the specific minimum entry requirement grade for each subject they wish to study”. In other words the concession is two points on the aggregate and nothing else — the subject gates in the Options Guide table are not waived. Where more eligible applicants come forward than there are places, the policy says the decision is taken after results are published.

Two points make this route worth acting on rather than filing away. It is small enough that most eligible families never learn of it, and the eligibility evidence — Pupil Premium status at the time of application — has to exist by the January deadline, not by results day. A family that qualifies should say so on the application form in the winter, not on results day in August.

The Published Timetable, and What Is Still Open

The dates below are the ones Beaconsfield High published for the most recently completed cycle, September 2026 entry. All of the application dates have passed. They are set out here because the school runs the same shape of cycle each year, so they are the best available guide to the September 2027 round, and because the last row is the one that is still live.

Source: Beaconsfield High School Sixth Form Admissions and Apply page, key date tables for external applicants and for BHS Year 11.

The shape is worth reading rather than the individual dates. The external window opens in mid-November, roughly a fortnight after the open evening, and closes at the end of January — a month before the school's own girls have to apply. Conditional offers land in late March, three weeks after the 11+ national offer day that families in Buckinghamshire will remember, and are confirmed or withdrawn on GCSE results day in August.

The one route that remains open after the deadline is stated on the same page: “Those who miss the application deadline or did not receive an offer can apply on GCSE results day and join our waiting list.” That is a genuine route rather than a formality, because conditional offer holders who miss their subject grades release places. The school's own guidance to applicants describes what happens to a girl in that position: “if you do not meet the entry criteria for your subjects, you may be offered an alternative course, and you will be invited to meet a member of the Senior Team to discuss this.” A girl arriving on results day with grades in hand is competing for whatever those meetings release.

What the Grades Buy: Outcomes at Becky High Sixth

The school publishes a short set of outcome figures on its sixth form landing page, all for the 2025 examination year: 50% of A-Level entries at A* or A, 81% at A* to B, and 11 leavers going on to study medicine and dentistry. Twenty-eight A-Level subjects are offered, alongside 30 clubs and societies and 26 specialist teaching spaces.

The curriculum shape is a three-A-Level programme with a fourth option available to those who qualify for it. Each A-Level carries four taught hours a week, and the school's stated expectation is that a student matches that contact time in private study — twelve taught hours and twelve independent hours a week across three subjects. Girls who meet the grade requirements may add an Extended Project Qualification, an AS in French or Spanish, or a fourth A-Level. For a girl comparing selective girls' sixth forms outside Buckinghamshire, our page on Nonsuch High School for Girls 16+ entry sets out how a comparable state grammar handles the same decision on a different set of criteria.

Frequently Asked Questions

Reviewed against Beaconsfield High School's Admissions Policy for 2026 Entry, its Admissions Policy for 2027 Entry, its Sixth Form Admissions and Apply page, its A-Level Options Guide and its Becky High Sixth pages, together with Buckinghamshire Council's secondary admissions guidance, in August 2026. Admissions policies are reviewed annually; check the school's policies page for the document covering your year of entry.