Buckinghamshire is the largest fully-selective area in England with thirteen grammar schools serving the county. The STT happens in mid-September of Year 6 and feeds the entire county system.
Test format & provider
The Buckinghamshire 11+ is delivered using Bucks Secondary Transfer Test (STT) — GL Assessment. The Bucks STT is GL Assessment-based with an integrated Verbal and Non-Verbal Reasoning structure. Children sit a fixed-format paper or papers under timed conditions, with answers transferred to a separate machine-readable answer sheet in most cases. The provider sets the question style, the marking scheme and the standardisation engine that converts raw marks into the scaled scores reported back to families in October.
The practical implication for parents is that practice should be format-specific rather than generic. A child who has practised exclusively on bespoke style papers will find GL Assessment question wording unfamiliar on test day, and unfamiliar wording costs marks even when the underlying skill is solid. Where possible, pick papers in the matching style — every paper we list for Buckinghamshire on this site is in the right idiom.
Registration & sitting dates
Registration for the Buckinghamshire 11+ typically opens in June and closes in early July, ahead of the live sitting in mid-September of Year 6. Late registration is generally not possible — the deadline is firm and missing it usually means losing the chance to apply that year. Set a reminder in your calendar in late spring of Year 5 so you do not get caught out by a quiet local-authority announcement.
Results are released in mid-October, after which families have a short window to submit their secondary school preference list with the county admissions team. The qualifying score is published alongside results in most years, although Buckinghamshire has occasionally adjusted the threshold based on cohort performance, so do not assume last year's number will be this year's.
Schools that use this test
The following grammar schools recruit, in whole or in part, through the Buckinghamshire 11+: Aylesbury Grammar, Aylesbury High, Beaconsfield High, Burnham Grammar, Chesham Grammar, Dr Challoner's Grammar, Dr Challoner's High, John Hampden Grammar, Royal Grammar High Wycombe, Royal Latin, Sir Henry Floyd Grammar, Sir William Borlase's Grammar, Wycombe High. Each school sets its own oversubscription criteria on top of the qualifying score — usually a combination of distance from the school, sibling priority and (in some cases) catchment-area weighting. Read each target school's admissions policy carefully; two schools that share a test can use the resulting score in very different ways.
If you are applying to multiple schools across different counties, check whether your child needs to sit more than one test. Cross-county applications are common in border areas and the practical work of registering for two separate tests in two separate windows often catches families by surprise.
What "good" looks like
The qualifying scaled score for Buckinghamshire sits broadly in the 121 range, depending on the year and the specific school. A child performing consistently in the top quartile of practice papers in the right format is in a strong position; a child performing around the cohort mean (a scaled score of 100) is unlikely to qualify without a meaningful improvement in the months before the test.
Resist the temptation to read too much into a single practice paper. Trends across five or six papers, sat under realistic conditions and reviewed properly, are far more diagnostic than the result of any one paper. Where a child's scores are volatile, the issue is almost always timing discipline rather than knowledge.
Recommended preparation timeline
Most successful Buckinghamshire families follow a similar shape: gentle exposure to question types from the start of Year 5, formal topic work through the spring and summer terms, full timed papers at fortnightly cadence over the summer holiday, and a deliberate wind-down in the final fortnight before the test. The temptation to keep adding practice in the last week is the single most common parent mistake — extra practice that late tends to dent confidence rather than build it.
If your child is starting in Year 6, the runway is shorter but not impossible. The key is ruthless prioritisation: pick the two weakest topic areas across an early baseline paper and drill them hard, rather than attempting broad coverage. Two strong topics is worth more than five mediocre ones in the time available.
Where to find Buckinghamshire practice papers
Free practice papers in the GL Assessment style are available on the publisher's own website and through several reputable parent forums. We catalogue every freely-licensed Buckinghamshire paper we can find on our Buckinghamshire regional page. For broader practice, the major UK educational publishers all produce paid GL Assessment-style workbooks; these are useful for topic-by-topic drilling once a baseline has been established.
Be cautious about paper sets sold on auction sites — many are old, mismatched in format, or photocopies of dubious provenance. Stick to the publisher's own materials, well-reviewed workbooks from established imprints, and the practice papers we link to here.
Common pitfalls in Buckinghamshire
Bucks has a single 121 cut-off across the whole county. The qualifying score in Bucks is a strict 121 with no school-by-school flexibility — a single mark below the line means no automatic offer at any of the thirteen grammars. The strongest preparation accounts for this from the outset rather than being surprised by it in the dress-rehearsal weeks.
Beyond the regional specifics, the universal pitfalls apply: too many papers and not enough review; reading practice scores as predictions rather than diagnostics; and allowing the 11+ to dominate family life for a year. Children who keep reading for pleasure, seeing friends and playing sport throughout the run-up tend to perform better, not worse.