How many A-Levels can you take?

The short answer is three. The vast majority of students in England take three A-Levels, the vast majority of universities make offers on three A-Levels, and the vast majority of high-achieving applicants have three A-Levels rather than four or five.

A smaller group of students takes four. The most common pattern is three subjects plus Further Maths, which is taken alongside A-Level Maths and is preferred or required for the most competitive Maths, Physics, and Engineering courses. Outside that specific case, taking a fourth A-Level is rare and usually a poor strategic choice.

A tiny minority takes five A-Levels. It is allowed in principle but almost never sensible in practice. Universities do not value the extra subjects, the workload is brutal, and grades almost always suffer across the board. This guide walks through how the numbers work, when a fourth A-Level genuinely helps, and how to think about the decision.

Three A-Levels is the standard because the system is built around it. Sixth forms timetable for three subjects per student. University entry requirements are written for three subjects. UCAS tariff points are calculated on three subjects. Offers are made on three grades, even at Oxbridge.

The reasoning is straightforward. Three A-Levels covers roughly 350 to 360 guided learning hours per subject over two years (the Ofqual typical figure for an A-Level is 360 GLH), which is the right amount of time for the kind of depth a top grade requires. Four subjects squeezes that to around 270 hours each, which is enough to scrape through but not enough to consistently push for A*/A grades across all four.

The deeper logic is that universities care about the depth of your knowledge in the subjects you study, not the breadth of your subject list. A student with three A-Levels at A*AA has produced better work across each subject than a student with four A-Levels at AABB. Admissions tutors read the grade profile, not the count of subjects.

Most students in England take exactly three A-Levels, all the way through to the end of Year 13. This is the default offered by most state sixth forms and is what most universities expect to see on a UCAS application.

A significant minority of students start Year 12 with four subjects and drop one at the end of Year 12 (the old AS-Level pattern). Under the reformed linear A-Levels, AS-Levels no longer count towards the full A-Level, so this pattern is less common than it used to be. Students who start with four often do so to keep their options open during Year 12 before committing to three.

A smaller group of students keeps four subjects all the way to the end of Year 13 and sits the full A-Level in each. The most common version is three subjects plus Further Maths, which is the standard route for students aiming at competitive Maths, Physics, or Engineering courses. Outside that case, sticking with four full A-Levels through to Year 13 is unusual.

There is essentially one case where a fourth A-Level genuinely helps your university application: Further Maths as a fourth subject for STEM applicants aiming at Oxbridge or top-tier universities.

Further Maths is preferred or effectively required for Maths, Physics, and Engineering at Oxford, Cambridge, Imperial, Warwick, UCL, and several other competitive universities. Cambridge Maths, for example, explicitly states that Further Maths is required where it is available. Imperial Engineering and several Oxbridge STEM courses make similar statements.

Further Maths is taken alongside A-Level Maths, not instead of it, and is examined as a separate qualification with its own four papers. Students who take Further Maths usually take three other subjects (Maths plus Further Maths plus two others), giving four A-Levels in total. The combined Maths plus Further Maths workload is significant, but the content overlaps so the two qualifications reinforce each other rather than competing for revision time.

Adding a fourth A-Level steals revision time from the three subjects that actually matter. The arithmetic is simple. If you have fifteen hours of revision per week and you spread it across four subjects, each subject gets three and three-quarter hours. Across three subjects, each gets five. The difference compounds over two years and shows up in the final grades.

The other risk is fatigue. Four full A-Levels means more lessons, more homework, more coursework deadlines, and less recovery time. Students who start Year 12 with four subjects often plan to drop one by the end of Year 12, but by then the damage to revision habits has often already been done. Picking up a sustainable rhythm in Year 13 is harder than starting with one in Year 12.

The specific cases where a fourth A-Level hurts most are: A weaker fourth subject that drags down the three you actually need; a fourth subject that does not match your target degree (which is most of them outside the Further Maths case); and any combination where the workload is genuinely beyond what you can sustain at A grade level.

Five A-Levels is allowed in principle but almost never sensible in practice. Most sixth forms will not timetable five subjects per student, partly because of resourcing and partly because the experience has shown the results to be poor across the cohort. Some independent schools and a small number of state sixth forms allow five subjects for exceptional students, but the situation is rare.

Universities are clear about how they view five A-Levels: They make offers on three, with occasional mention of a fourth (usually Further Maths). A fifth A-Level adds essentially no value to the application and is sometimes viewed as evidence that the student does not understand how the system works. The time would have been better spent on super-curricular reading, an EPQ, or admissions test preparation.

The one exception is students who take a fifth A-Level over an extra year, often a 'self-taught' subject like Latin, Classical Civilisation, or a heritage language. This is more about personal interest or signalling depth in a specific area than about strengthening the application. Even then, the marginal benefit is small for the time and energy required.

Universities read the number of A-Levels you take alongside the grades you achieve. The dominant signal is grade quality across your strongest three subjects. A fourth A-Level (or fifth) is read as supporting evidence, not as a separate signal.

For most courses, admissions tutors are looking at the typical offer (for example, A*AA for Cambridge Engineering) and checking whether your three best grades meet it. A fourth A-Level at C grade adds nothing useful to that picture, and a fourth at A grade adds only marginal weight.

For the most competitive courses, the calculus shifts slightly. Oxbridge admissions tutors do sometimes look at the full grade profile, and a strong fourth A-Level (typically Further Maths) can tilt borderline decisions. But the cases where the fourth subject is the deciding factor are rare. Strong grades in the right three subjects are what gets you in.

The Extended Project Qualification (EPQ) is a separate Level 3 qualification often taken alongside A-Levels. It is graded A* to E and carries UCAS tariff points worth half an A-Level grade for grade: An A* EPQ is 28 UCAS points, which is exactly half of an A* at A-Level (56 points). It is roughly half an A-Level's worth of work and half an A-Level's worth of UCAS tariff.

The EPQ is often a better use of time than a fourth A-Level for students aiming at competitive universities. It signals independent research skills, which is exactly what admissions tutors look for. Several Russell Group universities (including Southampton, Newcastle, and Manchester for some courses) offer alternative offers that include the EPQ as part of the conditions.

The EPQ is also less demanding than a full A-Level in terms of weekly contact time and exam pressure. The bulk of the work is independent and self-paced over Year 12 and the first half of Year 13. For students who want to demonstrate breadth without overloading the timetable, the EPQ is usually the right call.

A few specific situations come up regularly and deserve their own thinking. The first is the strong all-rounder. If you are the kind of student who scored 9s across the board at GCSE and can genuinely keep four A-Levels at A or A* level, the calculus shifts. A fourth A-Level still does not help most applications, but it does not hurt the way it would for a borderline student. The right choice is usually still three strong subjects plus an EPQ, but a fourth A-Level is not unreasonable.

The second is the Oxbridge STEM applicant. If you are aiming at Maths, Physics, or Engineering at Oxford, Cambridge, or Imperial, Further Maths as a fourth A-Level is essentially required. Take it.

The third is the student with a clear secondary interest. If your three main A-Levels are humanities-focused but you also love Maths (or vice versa), a fourth A-Level can signal genuine breadth. But check whether an EPQ on the same topic would be a better use of time, because in most cases it will be.

The fourth is the student worried about university requirements changing. The right move here is not to take a fourth A-Level 'just in case', but to research the specific requirements for the courses you might want. If a specific subject is required across multiple courses, take it as one of your three. Insurance via a fourth subject rarely works.

Work through three questions to decide whether a fourth A-Level is right for you. First, is the fourth subject Further Maths and are you aiming at competitive Maths, Physics, or Engineering courses? If yes, take it. If no, the bar for taking a fourth subject is high.

Second, can you realistically keep all four at A grade or above? Look at your GCSE results honestly. If your weakest predicted grade across the four would be a B or lower, you are better off with three subjects you can keep at A or A*.

Third, what would you do with the time that the fourth A-Level would take? If the alternative is an EPQ on a topic relevant to your target degree, the EPQ usually wins. If the alternative is admissions test preparation (for Oxbridge or Medicine), the test preparation usually wins. If the alternative is super-curricular reading and personal statement development, those usually win too. Take a fourth A-Level only if its specific value beats what you would do with the same hours.