Practical guidance from the Leading Tuition team
Book a Free ConsultationNeither the 11+ nor the 13+ is universally better — the right route depends entirely on your child's age, the schools you're targeting, and how much preparation time you have. The 11+ is sat at the end of Year 6 for entry into selective schools at Year 7, while the 13+ is sat in Year 8 for entry at Year 9. Understanding the structural differences between these two routes will help you make a genuinely informed decision rather than simply following what other families in your area are doing.
The 11+ is the entrance examination used by grammar schools and many independent day schools across England. Children typically sit it in September or October of Year 6, aged 10 or 11. The test format varies by region and school: grammar schools in areas like Kent, Buckinghamshire, and Lincolnshire use GL Assessment papers, while others use CEM (Centre for Education and Monitoring) tests. Independent schools often set their own papers or use ISEB (Independent Schools Examinations Board) materials. Core subjects tested are usually English, mathematics, verbal reasoning, and non-verbal reasoning.
The 13+, by contrast, is the traditional entry point for many independent boarding schools and some selective day schools. It is sat in Year 8, with children entering their new school at the start of Year 9, aged 13. The most widely used framework is the ISEB Common Entrance examination, which covers English, mathematics, science, and a range of humanities and language subjects. Many top independent schools — including Eton, Harrow, Winchester, and Marlborough — use the 13+ as their primary entry route, though most now also pre-register pupils at 11 with a pre-test.
One of the most significant practical differences is when the pressure falls. With the 11+, children are making high-stakes decisions at age 10 or 11 — an age when some are academically ready and others are not yet developmentally there. Preparation typically begins in Year 4 or Year 5, and the window between sitting the exam and starting the new school is relatively short.
The 13+ route spreads that pressure differently. Many boarding schools ask families to register interest by Year 6 and require children to sit a school-specific pre-test (often online cognitive ability tests) at age 11 or 12. A conditional place is then offered, with the formal Common Entrance exam sat in Year 8. This means children have more time to mature academically, but it also means living with a conditional offer for two years — which some families find stressful in its own way.
In terms of curriculum breadth, the 13+ is more demanding. ISEB Common Entrance at 13+ includes Latin (at some schools), modern foreign languages, history, geography, and religious studies — subjects that are not part of the 11+ at all. Children preparing for 13+ are essentially covering much of the Key Stage 3 curriculum early.
This is often the deciding factor. Your choice of exam is largely determined by the schools you want your child to attend:
If your child is aiming for a grammar school place, the 11+ is the only option — there is no 13+ equivalent in the state sector. If you're targeting a traditional boarding school, the 13+ route is likely required, though you will almost certainly need to engage with the pre-test process at 11 regardless.
Some children are early developers who thrive under structured preparation from Year 4 onwards. For these pupils, the 11+ can be an excellent fit — they are ready, motivated, and well-suited to the format. Others are late bloomers who need the extra two years that the 13+ route provides. A child who struggles with verbal reasoning at age 10 may be a confident, well-rounded student by age 13.
It is also worth considering subject strengths. The 13+ rewards breadth — a child who loves history, languages, and science alongside maths and English is well-placed. The 11+ is narrower in scope but highly competitive, particularly in areas with strong grammar school traditions. In Kent, for example, roughly 25–30% of children sit the 11+, but only around a third of those pass at the required standard for a grammar school place.
Children who are strong across the board but not exceptional in any one area sometimes find the 13+ a better showcase of their abilities. The ISEB Common Entrance marking is criterion-referenced, meaning schools set their own pass marks — often 55–65% — rather than ranking children against each other in the same way a grammar school might.
Both routes require preparation, but the nature and duration differ. For the 11+, most families begin focused preparation 12 to 18 months before the exam — typically from Year 5. For the 13+, preparation is more gradual and school-led, though targeted tutoring in Year 7 and Year 8 is common, particularly in mathematics and English.
Independent school fees are a separate consideration entirely, but it is worth noting that grammar schools are state-funded and free to attend — making the 11+ the only route to selective secondary education without school fees. For families who want a rigorous academic environment without the cost of independent schooling, the 11+ is the clear path.
Leading Tuition works with families across both routes, and the most consistent piece of advice we give is this: start by identifying the schools you want, then work backwards to understand which exam applies. Choosing an exam route without first shortlisting schools is putting the cart before the horse.
Can my child sit both the 11+ and the 13+?
Yes, in some cases. A child can sit the 11+ for a grammar or independent day school place at Year 7, and if unsuccessful or if the family changes direction, they may still pursue a 13+ route for Year 9 entry. However, this requires careful planning, as some boarding schools ask families to commit to the 13+ pathway early — often by Year 6 — through registration and pre-tests.
What is the ISEB Common Pre-Test and how does it relate to the 13+?
The ISEB Common Pre-Test is an online assessment sat by children in Year 6 or Year 7 who are applying to 13+ boarding schools. It tests verbal reasoning, non-verbal reasoning, English, and mathematics. Schools use it to make conditional offers ahead of the formal Common Entrance exam in Year 8. It is not the same as the 11+ and is specific to the 13+ boarding school pathway.
Is the 13+ harder than the 11+?
They test different things at different stages of development, so direct comparison is difficult. The 13+ covers more subjects and greater curriculum depth, reflecting two additional years of schooling. The 11+ is narrower but highly competitive in areas with grammar schools. Many children find the 11+ more pressured simply because of the age at which decisions are made.
Do all independent schools offer both 11+ and 13+ entry?
No. Entry points vary significantly by school and sector. Many boys' boarding schools use 13+ as their main entry point, while most girls' independent schools and co-educational day schools use 11+. Some schools offer both, particularly at the senior school level. Always check directly with individual schools, as entry structures have shifted in recent years — several traditionally 13+ schools now also offer 11+ entry.
Choosing between the 11+ and 13+ is ultimately a question of fit — fit between your child's readiness, the schools you're targeting, and your family's circumstances. Both routes lead to excellent schools and strong academic outcomes. The most useful thing you can do is research specific schools early, understand their entry requirements in detail, and give your child the preparation time they genuinely need. Leading Tuition's tutors support families through both pathways, tailoring preparation to the individual child rather than a one-size-fits-all approach.
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