A Parent's Guide to A-Level Subject Choices
A Parent's Guide to A-Level Subject Choices
A-Level subject choices matter more than GCSE options. They directly determine which university courses your child can apply for, and unlike GCSEs, there is no compulsory core — every subject is a choice. Getting it right opens doors. Getting it wrong can close them.
That said, "getting it wrong" is rarer than most parents fear. This guide will help you understand the system, support your child's decision-making, and avoid the genuine pitfalls.
How Many A-Levels?
Most students take three A-Levels. Some sixth forms encourage or allow four, particularly for high-achieving students or those targeting Oxbridge. Very occasionally, students take five.
Three is the standard. Universities make offers based on three subjects. Taking a fourth can demonstrate breadth but is not expected, and if it comes at the cost of lower grades in the core three, it can actually be counterproductive.
If your child's sixth form is pushing four A-Levels and your child is likely to struggle, it is worth having a conversation about whether three strong grades would be better than four weaker ones.
The Two Things That Matter Most
When choosing A-Levels, two factors should drive the decision:
1. University Course Requirements
If your child has any idea what they might want to study at university, check the entry requirements now. Not after they have chosen their A-Levels — before.
Subjects with hard requirements:
- Medicine: Biology and Chemistry are required by almost all medical schools. Some also want Maths or Physics.
- Engineering: Maths and Physics are required at virtually every university.
- Law: No specific subjects are required, but essay-based subjects are valued.
- Computer Science: Maths is required by most. Further Maths is valued. Computer Science A-Level is helpful but rarely required.
- Economics: Maths is required or strongly recommended by most universities.
- Architecture: Art or Design & Technology is often required alongside one other subject.
- Veterinary Science: Biology and Chemistry, similar to Medicine.
- English Literature degree: English Literature A-Level is expected.
Subjects with softer preferences:
Many university courses do not specify required A-Levels but have preferences. A Psychology degree does not require A-Level Psychology, but it helps. A History degree expects strong essay skills, which could come from English, Politics, or RS as well as History itself.
Subjects with no specific requirements:
Business, many social sciences, many arts and humanities degrees accept a wide range of A-Level combinations. Here, grades matter more than specific subjects.
How to check: Go to the UCAS website (ucas.com) and search for courses your child might be interested in. The entry requirements are listed for every course at every university. Spending 30 minutes doing this now can prevent a painful realisation two years later.
2. Genuine Interest
A-Levels are demanding. Each subject requires approximately 360 guided learning hours over two years, plus significant independent study. Students who do not enjoy their subjects tend to disengage, underperform, and struggle with motivation.
If your child is choosing between two subjects that both meet their university requirements, the one they find more interesting is almost always the better choice. Motivation is the strongest predictor of A-Level success after prior attainment.
Facilitating Subjects
The Russell Group (the 24 leading UK universities) previously published a list of "facilitating subjects" — A-Levels that kept the widest range of university courses open. The list was:
- Mathematics
- Further Mathematics
- English Literature
- Physics
- Biology
- Chemistry
- Geography
- History
- Modern and Classical Languages
The Russell Group has since retired this list, stating that they do not want to discourage students from taking other subjects. However, the underlying reality has not changed: these subjects are accepted and valued by the most competitive universities. If your child is unsure about their future direction, choosing two or three from this list provides maximum flexibility.
Important: "Facilitating" does not mean "better." A student who takes Music, Drama, and Art and goes on to study at a leading conservatoire has made an excellent choice. The facilitating subjects are about breadth of university options, not inherent worth.
Common Combinations That Work Well
Some A-Level combinations have natural synergy:
- Maths, Physics, Chemistry — the classic STEM combination. Opens doors to Engineering, Physical Sciences, Computer Science, and Medicine (with Biology swapped in).
- Biology, Chemistry, Maths — the standard Medicine/Veterinary/Biomedical Sciences combination.
- English Literature, History, Politics — strong for Humanities degrees, Law, Journalism, and the Civil Service.
- Maths, Economics, [third subject] — excellent for Economics, Finance, and Business degrees. The third subject is flexible.
- Biology, Chemistry, Psychology — good for Psychology, Biomedical Science, Neuroscience, and health-related degrees.
- Art, Design & Technology, [essay subject] — strong for Architecture, Design, and Creative Arts degrees.
These are not rules. Unusual combinations can work perfectly well if they meet the entry requirements for your child's target courses.
Combinations to Be Cautious About
Some combinations limit options more than students realise:
- No Maths in a STEM-oriented combination. If your child might want Engineering, Physics, Computer Science, or Economics at university, not having Maths A-Level will close most doors.
- All subjects from one narrow field. Three humanities subjects (History, English, RS) is fine for a humanities degree but leaves no STEM options. Three sciences with no essay subject is fine for STEM but makes a humanities pivot difficult. Balance is not essential, but awareness of what a combination rules out is important.
- Subjects with significant overlap. Business Studies and Economics cover similar ground. English Language and English Literature have overlapping skills. Some universities treat overlapping subjects as effectively two A-Levels rather than three when assessing applications.
New and Less Traditional Subjects
A-Levels now include subjects that did not exist when most parents were at school: Psychology, Sociology, Media Studies, Film Studies, Computer Science, and others.
Some parents worry that these are "soft" subjects that universities will not value. The reality is more nuanced:
- Psychology is the most popular A-Level in the country and is accepted by all universities. It involves significant scientific content and statistical analysis.
- Computer Science is a rigorous, technical subject that is increasingly valued.
- Sociology and Media Studies are less commonly required by competitive universities, but they are accepted and can be strong choices when combined with other subjects.
- BTEC qualifications are accepted by most universities, including many Russell Group institutions. They are a legitimate alternative to A-Levels, particularly for students who prefer coursework over exams.
The distinction that matters is not "traditional vs modern" but "does this combination meet the requirements for where my child wants to go?"
What If They Do Not Know What They Want to Study at University?
This is the most common situation, and it is perfectly fine.
If your child has no idea what they want to study at university (or whether they want to go at all), the best strategy is:
- Choose subjects they enjoy and are good at. Strong grades in subjects they care about open more doors than mediocre grades in "safe" choices.
- Include at least one facilitating subject (ideally Maths, a science, or English) to maintain flexibility.
- Avoid closing obvious doors. If there is even a small chance they might want to study something with a hard requirement (Maths for Engineering, Chemistry for Medicine), keep that subject unless they actively dislike it.
Most university courses accept a wide range of A-Level combinations. The students who get trapped are the ones who discover a specific calling late in Year 12 and realise they are missing a required subject. A broad combination prevents this.
What If They Want to Change?
Most sixth forms allow students to change A-Level subjects within the first few weeks of Year 12. After that, it becomes increasingly difficult because the content builds on itself.
If your child is unhappy with a subject early in Year 12, encourage them to speak to their teachers and the head of sixth form quickly. A switch in September or October is manageable. A switch in January is much harder. A switch in Year 13 is effectively impossible.
Your Role
A-Level choices are a collaborative decision, but ultimately your child needs to own it. They are the ones who will study these subjects for two years and sit the exams.
Do:
- Research university requirements together
- Share your perspective, especially about keeping options open
- Help them think through the consequences of their choices
- Encourage them to speak to current A-Level students about what the subjects are actually like
- Support their decisions, even if they are not what you would choose
Do not:
- Choose for them
- Insist on subjects you think are "proper" or "useful"
- Dismiss creative or vocational subjects
- Panic about making an irreversible mistake — most combinations work fine
- Project your own career expectations onto their choices
The best A-Level combination is one that meets any hard university requirements, keeps reasonable flexibility, and includes subjects your child is genuinely motivated to study. If all three of those boxes are ticked, they are in a strong position.
Further Reading
- How to choose A-Level subjects — a student-focused guide to the same decision
- How to support your child through A-Levels — practical advice for parents during A-Level study