Buckinghamshire 11+ Test 2027: Complete Parent Guide to the Bucks Exam
· 10 min read
A clear parent guide to the Bucks 11+ for 2027 entry — format, registration, qualifying score, the 13 TBGS grammar schools, allocation rules, and appeals.
The short answer
Buckinghamshire's 11+ (the 'Secondary Transfer Test') is set by GL Assessment for the Buckinghamshire Grammar Schools (TBGS) consortium, sat in September of Year 6, and reported as a single combined Standardised Score. The qualifying threshold has typically sat around 121, which places a child in roughly the top quarter of the cohort. Children attending a Bucks state primary are auto-registered; out-of-county families must opt in via a registration form. There are 13 grammar schools in the consortium and they use the test alongside catchment and oversubscription criteria to allocate places. The full mechanics — papers, dates, registration, appeals — are below. For a side-by-side comparison with other 11+ exam boards, see our GL vs CEM vs CSSE guide.
Format: two papers, secure GL content
The Bucks test consists of two papers, each approximately 45-50 minutes, sat on separate dates in September of Year 6. The papers blend four subject areas into two sittings: one paper focuses on Mathematics and English/comprehension, the other blends Verbal Reasoning and Non-Verbal Reasoning. All questions are multiple-choice and answers are recorded on a separate answer sheet. GL Assessment papers used for Bucks are 'secure' — they are not released as past papers after the test, and the consortium does not publish the specific year's content. This is deliberately designed to limit the value of leaked or memorised papers and to discourage families from teaching to a specific question set. What is published is the format and the question types, both of which are stable year to year. Familiarisation booklets (see below) walk children through the structure. The paper is age-standardised, meaning a younger child is not disadvantaged against an older classmate. A child born in August is compared statistically against other August-born children, not against a September-born peer eleven months their senior. The reported result is a single combined Standardised Score (the average of the two papers' standardised scores) — not separate subject scores. For a deeper look at how standardised scoring actually works, including how it maps to qualifying thresholds elsewhere, our SAS and pass marks guide covers the maths and the regional comparisons.
When the test is sat (Year 6, September)
The 2027-entry test is sat in September 2026 — early in the autumn term of Year 6, before children have settled into the new school year. The two papers are typically scheduled five to ten days apart, with the first paper in the second week of September and the second paper in the third week. The exact dates are published by Buckinghamshire Council in the spring of Year 5 and confirmed in the summer. The test is sat at the child's own state primary school for in-county families, which significantly reduces test-day stress — children are in a familiar environment with familiar staff supervising. Out-of-county families and independent-school families sit the test at a designated test centre arranged by the consortium. Results are released in mid-October — usually three to four weeks after the second paper. Families are notified by the council, not the schools, and the result is a single combined Standardised Score plus an indication of whether the child has met the qualifying threshold.
The qualifying threshold (~121)
Bucks uses a single qualifying threshold rather than the two-tier system used in Kent. The threshold has typically sat around 121 — a Standardised Score that places a child in roughly the top quarter to top-fifth of the cohort. The exact number varies year to year because TBGS sets the threshold to admit a roughly fixed proportion of children, and that proportion can shift slightly as the cohort changes. Crucially, qualifying does not guarantee a place at any specific school. Once a child has crossed 121, the place-allocation process uses catchment, sibling priority, and parental preference to assign children to the 13 grammar schools. A child can qualify and still not receive a grammar school place if all the schools they applied to are oversubscribed by closer-living qualifying children. This matters because 'qualifying' and 'getting into your target school' are two different problems. Children at the lower end of the qualifying band who live far from their preferred grammars can miss out; children at the upper end who live close in are more likely to be allocated. Always cross-reference the qualifying threshold with your specific school's catchment behaviour from recent admissions data. For the broader context on how qualifying thresholds work across regions, see our SAS and pass marks article.
The 13 TBGS grammar schools
The Buckinghamshire Grammar Schools consortium covers 13 selective state secondaries: - Aylesbury Grammar School (boys) - Aylesbury High School (girls) - Beaconsfield High School (girls) - Burnham Grammar School (mixed) - Chesham Grammar School (mixed) - Dr Challoner's Grammar School (boys, Amersham) - Dr Challoner's High School (girls, Little Chalfont) - John Hampden Grammar School (boys, High Wycombe) - Royal Grammar School High Wycombe (boys) - The Royal Latin School (mixed, Buckingham) - Sir Henry Floyd Grammar School (mixed, Aylesbury) - Sir William Borlase's Grammar School (mixed, Marlow) - Wycombe High School (girls) Each school has its own catchment area, sibling policy, and oversubscription criteria — these are not consortium-wide. A child qualifying for grammar in Aylesbury may not be near the catchment for a Wycombe school. Families typically express up to six preferences across grammar and non-grammar secondaries on the standard secondary application; the council allocates based on qualification, preference order, and each school's individual oversubscription criteria. The 13 schools are split between single-sex and mixed; they vary substantially in size, sixth-form profile, and ethos. Visit at least three open days in Year 5 — the schools genuinely differ and your child's fit matters as much as the qualifying score.
Registration: in-county vs out-of-county
If your child attends a Buckinghamshire state primary school, they are auto-registered for the test. The school handles the paperwork; you do not need to opt in unless you want to opt out (and most families do not). The school will send home a familiarisation booklet in the summer term of Year 5 along with the date your child is due to sit each paper. If your child attends a school outside Buckinghamshire — including in a neighbouring authority such as Hertfordshire, Bedfordshire, or Oxfordshire, or in an independent school anywhere — you must opt in by completing the TBGS registration form. The form is open from late spring (typically late April or May) and closes in mid-to-late June of Year 5. Late registrations are not normally accepted. The registration form asks for the child's primary school, date of birth, and intended secondary preferences. Out-of-county and independent-school children sit the test at a designated test centre arranged by TBGS rather than at their own school. The exact location is confirmed in the summer. There is no fee to sit the Bucks test. The cost falls on the local authority, not the family.
Familiarisation booklets and what they actually contain
Every registered child receives a familiarisation booklet roughly two weeks before the test. It contains: a sample of each question type the child will face, instructions on how to use the answer sheet (often the most novel part for children who have never sat a multiple-choice paper), guidance on timing, and worked examples. The booklet is the only official guidance on what is being tested. Walk through the booklet with your child a week before the test. The first time a child encounters a separate answer sheet — bubble-fill answers transferred from a question paper — can throw them off if they have not practised it. The booklet exists to remove that surprise. Do not use the booklet as a final cram resource; it is a familiarisation tool, not a substitute for the year of preparation.
Allocation rules and oversubscription
Allocation runs on the standard Buckinghamshire secondary admissions timeline. The application deadline is 31 October of Year 6 (after the test result is released, so families know whether their child has qualified before submitting preferences). The national offer day is 1 March of Year 6, when families learn which secondary their child has been allocated. If your child has qualified, your grammar-school preferences will be considered against each school's oversubscription criteria. These criteria typically prioritise (in this order): looked-after children, siblings of current pupils, children with a Statement / EHCP that names the school, distance from the school, and in some cases catchment areas defined by the local authority. Each school publishes its own oversubscription criteria — read them before listing preferences. If your child has not qualified, they remain eligible for non-grammar secondaries through the same application. Many Bucks comprehensives are excellent and many qualifying-but-not-allocated children also attend them — Bucks is one of the few fully selective LAs in England, but the non-grammar provision is not a fallback in the negative sense; it is the system as a whole.
The appeals process
If your child does not qualify, you have two routes. The first is to request a review of the result through TBGS — this is for cases where you believe the test was administered incorrectly, your child was unwell, or there was a clerical error. Reviews must be requested promptly after results are released; the deadline is published with the results. The second route is the formal selection appeal, heard by an independent panel after the result is finalised. Selection appeals require evidence that the test was not a reliable measure of your child's ability — for example, documented illness on the day, a significant educational psychologist's report, or evidence of consistent academic performance well above the qualifying level in school assessments. Selection appeals are not about whether your child is bright — they are about whether the test specifically failed to measure ability accurately. A separate process, the secondary admissions appeal, applies if your child qualified but was not allocated their preferred school. These appeals are heard against the school's oversubscription criteria. Success rates vary widely by school and year. Get professional advice before lodging either type of appeal — the Bucks education department, your child's headteacher, and parent-support charities can all help you understand whether you have a viable case before you commit time to the process.
Where GrammarPrep fits
GrammarPrep's Bucks-specific path is configured for GL Assessment question types across the two papers, with the topic mix calibrated to Bucks's qualifying threshold rather than to the higher super-selective bar that drives Sutton or Reading practice. The adaptive engine targets your child's weakest GL question types in 20-minute daily sessions; the weekly study plan auto-regenerates each Monday to reflect the previous week's practice. Mock exams report a Standardised Score equivalent — not just a percentage — so you can read your child's progress in the same currency the council uses on results day. Start with the free diagnostic at grammarprep.uk/onboarding to see your child's current Bucks baseline. For broader timing decisions, see our when to start 11+ prep guide, and for the Buckinghamshire region overview including school-by-school catchments.