11+ vs 13+ Entry to UK Private Schools: Which Route Is Right for Your Child?

One of the questions I hear most often from parents of children in Year 4 and Year 5 is deceptively simple: "Should we aim for Year 7 or Year 9 entry?" The answer is almost never obvious, and getting it wrong — rushing a child into a senior school before they are ready, or keeping them in prep school for two unnecessary years — can have real consequences for their academic confidence and social development.

This guide walks you through everything you need to understand to make the right call.

Understanding the Two Main Entry Points

Independent senior schools in the UK typically offer entry at two primary points:

Year 7 (age 11): Entry assessed via the 11+ examination, held in the autumn term of Year 6. This is the dominant entry point for most day schools, including selective grammar schools and many well-known independent schools in urban areas. Schools that have historically taken children at 13 have increasingly shifted to 11+ entry over the past decade, responding to market demand from parents who want their children settled into senior school earlier.

Year 9 (age 13): Entry assessed via the Common Entrance examination (CE) at 13+, held in May of Year 8, or via the school's own scholarship or pre-test. This remains the traditional entry point for many boarding schools and a number of prestigious day schools, particularly those with attached prep schools that educate children from age 7 or 8 through to 13.

Some schools offer both entry points. A small number also offer 12+ or 14+ entry, though these are less common.

The 11+ Route: What You Need to Know

The 11+ is not a single, standardised examination. This is one of the most important and most misunderstood facts in UK independent school admissions. Different schools set their own papers, and the content, style and difficulty vary enormously.

What is typically assessed: Most 11+ examinations test verbal reasoning, non-verbal reasoning, English comprehension and composition, and mathematics. Some schools — particularly those in London — use the Independent Schools Examinations Board (ISEB) common pre-test online, which has a standardised format. Others, including selective grammar schools, use GL Assessment or CEM papers. Many leading independents set their own bespoke examinations entirely.

When preparation should begin: For children targeting highly selective schools, structured preparation typically begins in Year 4 or early Year 5. This does not need to mean intensive cramming — the most effective preparation is a combination of strong reading habits, regular mathematical reasoning practice, and a gradual introduction to examination technique. Children who are over-tutored often develop an anxiety response that actively works against them in high-pressure assessment environments.

What schools are also looking for: Beyond the written examinations, most selective day schools also conduct an interview or group activity assessment in Year 6. Schools are increasingly sophisticated in their ability to distinguish between a naturally able child and one who has been heavily coached to a ceiling. Character, curiosity, the ability to engage in discussion and recover from an incorrect answer gracefully — these qualities are actively assessed.

The emotional dimension: The Year 6 examination season is stressful, and the stress falls on children at a developmentally sensitive age. Parents need to be very aware of the signals a child is sending. A child who is genuinely eager, curious and resilient will generally thrive in the process. A child who is clearly anxious, reluctant or being pushed against their natural pace is at risk of a negative association with learning that can be difficult to undo.

The 13+ Route: What You Need to Know

The 13+ route, and the Common Entrance examination that underpins it, remains one of the most rigorous and academically thorough pathways in UK education. Understanding how it works is essential for prep school parents.

The Common Entrance (CE) examination: CE papers at 13+ are set by ISEB and marked by the receiving school. This is a crucial distinction — it means that two children sitting identical CE papers can receive different outcomes depending on which school marks them and what that school's threshold is. Papers are available in a wide range of subjects including mathematics, English, sciences, languages, history, geography and religious studies. Schools set their own mark requirements, and these vary considerably.

Pre-testing at 11: Many schools that nominally take children at 13+ actually conduct a pre-test at 11 to register conditional offers. A child sits a cognitive assessment or the ISEB common pre-test, receives a conditional offer, and the CE at 13 then confirms that offer. In practice, this means families on the 13+ route are still navigating a meaningful assessment at age 11, just with less immediate finality.

The prep school relationship: The 13+ route makes particular sense for families whose child is attending a good prep school, especially one with a strong record of CE preparation and established relationships with senior schools. The prep school's Head plays a key role in advising which senior schools are realistic targets and in managing the reference and interview process. Trust that relationship — it is one of the most valuable resources available to you.

Why some families prefer the 13+ route:

• Children who are late developers academically or socially benefit from the additional two years of prep school.

• The CE curriculum is broader and deeper than most 11+ preparations, producing well-rounded academic foundations.

• Boarding school culture is strongly embedded in the 13+ tradition, and many of the UK's most prestigious boarding schools still prioritise 13+ entry.

How to Decide: A Framework for Families

There is no universally correct answer. The right entry point depends on your individual child and your family's circumstances. Here is the framework I use with families in my practice:

Choose Year 7 entry (11+) if:

• Your child is in a state primary or a prep school that prepares children for senior school at 11.

• Your family is primarily interested in day schooling in an urban or suburban area.

• Your child is emotionally and academically ready to transition at 11 and is enthusiastic about doing so.

• The target schools you have identified primarily fill at Year 7.

Choose Year 9 entry (13+) if:

• Your child is in a prep school that runs through to 13 and is flourishing there.

• You are considering boarding school, particularly traditional boarding schools with a strong 13+ entry history.

• Your child is a late developer — intellectually curious and capable, but not yet exam-ready at 11.

• Your target schools still primarily fill at Year 9.

If you are genuinely uncertain: Talk to the Head of your child's current school. A good Head will give you a frank, child-centred assessment, not an assessment based on the school's own preference or reputation management.

Registration Deadlines: A Common Trap

Every year, families miss crucial registration windows — particularly for 11+ schools. The timeline is earlier than most parents realise:

• Register for Year 7 entry typically by October–November of Year 5 (18 months before entry).

• Register for pre-tests for 13+ boarding schools typically by Year 6 autumn term (two years before entry).

• Open days and taster days should be attended at least one to two years before the target entry date.

If you are reading this and your child is in Year 5 or Year 6, please act now. Missing a registration deadline for a desired school is one of the most common and most avoidable mistakes in independent school admissions.

One Final Thought

The examination process — whether at 11 or 13 — is a means to an end, not an end in itself. The goal is to find the school community where your child will be genuinely happy, intellectually stimulated and well-supported. A school that is marginally less prestigious but a wonderful fit for your child will serve them far better than a more famous school where they are merely coping.

That is a principle worth holding onto throughout what can be a genuinely pressured process.