Sixth form is the name given to the two years of study that most students in England, Wales and Northern Ireland do between finishing their GCSEs and going on to university, an apprenticeship, or work. Those two years are called Year 12 and Year 13, and students in them are usually aged 16 to 18.
Most people in sixth form are studying A-Levels, but that is not the only option. You might also see BTECs, T-Levels, or the International Baccalaureate (IB) offered under the same roof. The rules on how you get in, what you study, and where you go afterwards vary depending on your part of the UK, and that is what this guide is for.
88.2% – Of 16-17 year olds. In England were in education or apprenticeships at the end of 2025, combining school sixth forms, sixth form colleges, FE colleges and apprenticeship routes (Department for Education, participation in education, training and employment, age 16 to 21, published 2026 for end of 2025)
What sixth form really is
In the simplest terms, sixth form is the post-16 phase of school. It sits between GCSEs (which finish at the end of Year 11) and higher education or the workplace. The name comes from the old English school year numbering: Secondary schools ran from the first form to the sixth form.
One rule that is often misunderstood: The duty to stay in education or training until the age of 18 applies in England only, under the Education and Skills Act 2008 (in force since 2015). It does not mean staying in a classroom, but it does mean doing one of three things: Studying full time in a school sixth form or college, an apprenticeship or traineeship, or working while studying part time for a qualification alongside it.
In Wales, Scotland and Northern Ireland the statutory school leaving age is still 16. In practice, most students in all three nations continue in some form of education or training past that age, but they are not legally required to.
The two years: Year 12 and Year 13
Year 12 is the first year of sixth form. It is typically when students settle on their subjects, get used to a much more independent style of learning, and sit their first internal mock exams. For most, it is also when conversations about university, apprenticeships and future plans start in earnest. Our guide on what to expect in Year 12 goes into more detail on the day-to-day.
Year 13 is the second and final year. It ends with the exams that decide A-Level (or equivalent) grades, and for anyone applying to university, those grades determine which offers they meet. Y13 tends to feel much shorter than Y12 because the summer term is dominated by revision and exams.
Some schools group these two years together and call them Key Stage 5 (KS5). That is the same thing as sixth form, just the technical name used in curriculum documents.
What you can study in sixth form
Most sixth form students in England and Wales study A-Levels, but there are several other routes worth knowing about before you commit.
| Qualification | Typical shape | Best suited to |
|---|---|---|
| A-Levels | Three subjects (sometimes four) studied in depth over two years, assessed by exam at the end of Year 13. | Students who want an academic route, especially those aiming for university. |
| BTECs | Vocational qualifications assessed through a mix of coursework and exams. Available at different sizes, from a single BTEC alongside A-Levels up to a full three-BTEC programme. | Students who prefer applied, coursework-heavy learning or already have a career area in mind. |
| T-Levels | Two-year technical qualifications introduced from 2020, combining classroom learning with a substantial industry placement (around 45 days). | Students who want a technical route into a specific sector like construction, digital, or health. |
| International Baccalaureate (IB) Diploma | Six subjects studied across two years, plus the three IB core requirements: an Extended Essay (a 4,000-word research essay), Theory of Knowledge (TOK, a critical thinking course), and Creativity, Activity, Service (CAS, a programme of creative, physical and community activities). Fewer schools offer it. | Students who want a broad academic programme and are open to studying more subjects at once. |
| Mixed programmes | A combination, for example two A-Levels plus a BTEC, or an A-Level plus an extended project. | Students who want an academic core but with a vocational or research add-on. |
Not every sixth form offers every route. Smaller school sixth forms often stick to A-Levels and a handful of BTECs, while larger sixth form colleges and FE colleges (more on the distinction below) offer a wider mix.
Sixth form vs FE college: What is the difference?
This is one of the questions we get most often, and it trips up parents in particular because the language is not consistent from town to town.
A school sixth form is attached to a secondary school. Students often stay on from Year 11 into Year 12 at the same school, though most sixth forms also take external applicants. Cohorts tend to be smaller, uniform or a smart dress code is common, and the focus is usually on academic qualifications like A-Levels.
A sixth form college is a standalone institution just for 16 to 18 year olds. There is no uniform, no younger students in the building, and the range of subjects is often wider.
A further education (FE) college takes students of all ages, from 16 upwards, including adults returning to study. FE colleges tend to offer the widest mix of qualifications, from A-Levels through BTECs, T-Levels, apprenticeship pathways, and adult courses.
None of these routes is objectively better than the others. Our sixth form vs college comparison walks through the pros and cons of each in more detail.
A useful rule of thumb: If a friend says they are "going to sixth form", they usually mean a school sixth form or sixth form college. If they say they are "going to college", they usually mean an FE college. In practice the terms bleed into each other and you should always ask which specific institution they mean.
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Who goes to sixth form?
The short answer is most 16 year olds, in one form or another. In England the participation age was raised so students have to stay in education or training in some capacity until 18, and sixth form is one of the main routes. In Wales, Scotland and Northern Ireland the leaving age is still 16, but the majority of students continue anyway.
Students who choose a school sixth form or sixth form college tend to be aiming at academic qualifications and often (though not always) at university. Students choosing FE colleges are more likely to be doing vocational or technical qualifications, or a mix. There is no single "type" of sixth former: Some know exactly what they want to do at 22 and pick subjects to match; others use the two years to work it out.
Entry requirements
Entry requirements are set by each individual sixth form or college, and they vary a lot. Broadly, though, there are two things they will look at.
The first is your overall GCSE profile. Most sixth forms ask for at least five GCSEs at grade 4 or above (sometimes grade 5), and more selective sixth forms often ask for a higher average, for example five 6s. Our parent guide to GCSE grading explains the 9-1 scale in plain English if that is useful background.
The second is grades in the specific subjects you want to study. This is where sixth forms tend to be strictest. For A-Level Maths, a grade 6 or 7 in GCSE Maths is a common minimum, and A-Level Sciences follow a similar pattern. For essay-based subjects like English or History, most sixth forms want a strong grade in the same subject at GCSE. For subjects you have never studied before (Psychology, Sociology, Economics, Politics), they will usually look at a related subject, most often English or Maths.
BTECs and T-Levels have their own entry requirements, typically lower on average grades but sometimes requiring specific subjects depending on the pathway. Always check the individual sixth form's website for the current thresholds, as they can shift year to year. Our step-by-step sixth form application guide covers the process in more detail.
Use this as a starting point when you are looking at sixth forms or colleges. You will typically apply to three to five so you have backup options.
- Check the qualifications offered (A-Levels only, or a mix with BTECs and T-Levels)
- Check the specific subject combinations available and any timetable clashes
- Look at the entry requirements for your target subjects, not just the overall GCSE minimum
- Consider the environment: Uniform vs no uniform, mixed ages vs 16-18 only, small vs large
- Visit on an open evening if you can, or take a virtual tour
- Ask about pastoral support, especially if you have an EHCP or specific learning needs
- Check travel time and cost from home
- Look at destinations: Where students go afterwards (universities, apprenticeships, work)
How sixth form differs from school
For students moving up from Year 11, the change of pace can catch them off guard. A few things tend to be different.
The first is fewer subjects with more depth. Instead of nine or ten GCSEs, you will study three or four A-Levels (or an equivalent programme), each going into much more detail, with independent reading expected.
The second is more free periods. Sixth formers typically have several free periods on their timetable, meant for independent study rather than free time.
The third is less hand-holding. Teachers still teach, but they do less chasing, and if you fall behind on reading or homework it will not be flagged the same way as at GCSE. Building good A-Level revision techniques early makes the workload much easier to manage.
The environment feels more grown-up, with things like a common room, first-name terms with staff, or a different dress code.
And from Year 12 onwards, conversations about UCAS, apprenticeships and future planning start seriously. UCAS Apply opens for registration around 12 May of Year 12, so students can start building their application and drafting a personal statement over the summer; actual submission opens 1 September of Year 13.
The step up from GCSE to A-Level content is real, and most students find the first term of Year 12 harder than they expected. If you are struggling in October or November, that is very common. Talk to your teachers early rather than waiting until mocks.
Where sixth form fits in UK education
In England, the education system runs primary school (Reception to Year 6), secondary school (Year 7 to Year 11), and then sixth form or college (Year 12 to Year 13). Staying in education or training until 18 is compulsory here, under the Education and Skills Act 2008. After that, most students go into higher education, an apprenticeship, or work.
Wales and Northern Ireland follow a broadly similar year structure, but their statutory school leaving age is 16. Most students carry on into a sixth form, college or apprenticeship, but they are not legally required to. The qualifications on offer and curriculum structure also differ, especially in Wales with the new Curriculum for Wales.
Scotland is different again. The statutory leaving age is 16, and students take National 5s (roughly the equivalent of GCSEs) around age 15 to 16, then Highers, and then Advanced Highers. The word "sixth form" is not used in Scotland in the same way; the equivalent years are S5 and S6.
