School Admissions Timeline: A Complete Checklist for Parents

The single biggest reason strong children miss out on a place at a leading independent school is timing. Registration windows for the most selective schools close years before entry, and a family that starts looking in the year of the assessment has often already missed the deadline. This checklist sets out when to do what, from first research to accepting a place, so that nothing important slips past while you are busy with everything else.

Why timing decides outcomes

Independent school admissions run on a longer clock than most families expect. The most sought-after schools work two to three years ahead of entry, and several close registration once a year group is full, regardless of how strong a later applicant might be. The practical consequence is simple. A child's chances are shaped not only by ability and preparation, but by whether the family acted within the window. Treat the timeline as a fixed framework to plan around, decide your shortlist early, and you remove the most avoidable reason for disappointment. The checklist below works back from a September entry and applies, with small differences, to 11+ and 13+ entry alike.

Three years out: research and shortlist

The earliest stage is about learning the landscape and narrowing your options, not committing. Read widely about the schools that interest you, attend a few open mornings, and start to form a view of the type of school that suits your child, whether that is day or boarding, single-sex or co-educational, and which entry point fits their age. Our hub of school admissions guides is a sensible starting point, and our piece on how to choose a boarding school sets out the questions worth asking. By the end of this stage you want a shortlist of perhaps six to eight schools, a sense of their entry points, and the registration deadline for each, since those deadlines drive everything that follows.

Two years out: register and prepare

This is the stage where the calendar starts to bite. Register your child at the schools on your shortlist within their stated windows, even where that feels early, because registration usually commits you to nothing while securing your child's place in the process. For 11+ entry this often falls in Year 5; for 13+ entry it can fall in Year 5 or Year 6, well before the Year 8 assessment. At the same time, let your child's current school know which schools you are aiming for, since most senior schools rely on a confidential reference, and a teacher given notice writes a far stronger account than one asked at the last minute. Begin steady, low-pressure preparation now, built on wide reading and secure English and Maths, rather than a late scramble. Our guide on when to start preparing explains how to pace it.

The year of assessment

In the year before entry the process moves quickly, so it helps to know the rhythm. For schools that use the ISEB Common Pre-Test, the test is typically sat in the autumn term, and our guide to the ISEB Pre-Test covers it in full. Many schools then invite shortlisted children to an assessment day or interview over the following months. For 13+ entry through Common Entrance, the main papers usually fall later, and our guide to 13+ Common Entrance sets out the format. Through this stage, keep preparation steady rather than frantic, make sure your child has sat a few past papers under realistic conditions so the format holds no surprises, and confirm the exact dates with each school, since they vary and a missed sitting is hard to recover from.

Offers and acceptance

Offers usually arrive in the spring before a September start. If your child is fortunate enough to receive more than one, you will normally have a set period to accept, often with a deposit to secure the place, so check each school's terms and diarise the acceptance deadline as carefully as you did the registration one. This is also the point to finalise any bursary or scholarship arrangements, which our overview of school bursaries and scholarships explains. Once you have accepted, let the other schools know promptly, both as a courtesy and because it releases a place for another family. From here it is a matter of the practical preparations for starting, by which point the hard work of the timeline is behind you.

Common timing mistakes

The most common mistake is starting late, treating a 13+ place as a Year 7 decision when the registration window in fact closed in Year 5 or Year 6. The second is registering at only one or two schools, which leaves a family exposed if an assessment does not go to plan; a shortlist of several gives room to manoeuvre. The third is briefing the current school too late, so that the reference is rushed. The fourth is confusing the registration deadline with the assessment date, and assuming there is time in hand when there is not. Avoiding these is largely a matter of writing every deadline into a single family calendar at the research stage, then working steadily against it.