How to choose your A-Level subject combinations

12th January 2026 by Anita Naik

Choosing your A-Level subjects isn't as easy as it sounds. The right combination will not only open doors to the best degree courses, but also set you on the right career path. Here's what you need to know.

Start with a goal:

Before you look at any A-level subject list, answer this question: "What do you want to study at university?" If you know the answer, all you have to do is work backwards from university entry requirements via UCAS. This way, you'll find out what combinations are relevant for your degrees and which universities look favourably on the subjects you want to choose.

If you don't yet know what degree you're aiming for, your strategy should be to keep as many options open as possible while playing to your strengths. This means: What subjects are you good at? Where do your passions lie? And what are your mock results telling you about your success at GCSE?

What you do need to know is that universities and degrees fall into three categories when it comes to A-Level requirements:

1. Medicine, dentistry, veterinary science, engineering, and some sciences have non-negotiable subject requirements. Choose the wrong A-levels, and you won't even be considered.

2. Law, economics, and many social sciences prefer certain subjects but will consider strong candidates with alternative combinations.

3. Certain subjects like English, history, philosophy, and many humanities care more about your thinking skills than your specific subjects.

4. Some Russell Group universities and Oxbridge favour certain A-levels, but this can be dependent on the degree you opt for, so check with entry requirements if you have a specific university in mind.

How to make your A-Level decisions:

While your GCSE experience provides valuable insights, your predictions should only be the beginning of your research into A-level subjects. GCSEs show you have foundational abilities, but they don't tell you whether you'll thrive at A-level, so you have to invest time in understanding what each A-level involves. To help make sure you look at A-level specifications, talk to A-level teachers and students taking the courses you are interested in.

Examples of major differences:

History: GCSE often covers straightforward factual recall. A-level requires essay work and sometimes coursework, analysing, evaluating conflicting interpretations, and constructing sophisticated arguments.

Science subjects: GCSE covers foundational concepts with limited mathematical demand. A-level involves significantly more complex mathematics, abstract theoretical frameworks, and university-level concepts.

Mathematics: GCSE focuses on mastering techniques and applying them to familiar problems. A-level requires proof-writing, abstract reasoning, and often university-level concepts.

How many A-Levels should I take?:

Most students take three A-Levels. Some take four. Don't take a fourth subject just because your peers are or because your school suggests you should. University admissions says they want to see excellence in three subjects more than competence in four.

Plus, certain degrees, like Maths, Engineering, Computer Science, Law, Sciences, and Economics, require additional entrance exams as does Oxbridge, so you should factor this work in too.

If you are genuinely capable of managing the work and your fourth choice either keeps your options open or demonstrates breadth (or you're taking Maths and Further Maths together as these overlap significantly), then by all means choose four.

Strategic A-Level combinations:

1. Medicine and Dentistry: Non-negotiable here is Chemistry plus Biology (for most courses). Maths also strengthens your application and helps with scientific concepts. Psychology shows a broader interest in human health. Physics keeps engineering or other science pathways open if you change your mind.

2. Engineering: Non-negotiable here is Maths, usually Physics and Further Maths can be a good addition.Chemistry or Computer Science, depending on your engineering interest and Design Technology for some practical engineering courses.

3. Law: There are no required subjects for Law (Law A-Level is not necessary and won't give you a significant advantage). Strategic combinations include essay-heavy subjects that develop argument skills such as History, English Literature, Politics.

4. Sciences (Biology, Chemistry, Physics): Two sciences plus Maths

5. Mathematics: Non-negotiable: Maths, Further Maths (increasingly expected for top universities), Physics or Computer Science (demonstrates applied mathematical thinking) or Economics.

6. English Literature: English Literature A-Level with another essay based subject like History and another essay subject (to demonstrate sustained analytical writing) or English Language (many English courses value linguistic awareness).

Making your final decision:

1. List your target universities and courses (even if provisional). Note their required and preferred subjects.Identify your must-have subjects based on these requirements.

2. Assess your GCSE performance in your mocks. Be honest—if you're getting 5s and 6s, you'll struggle at A-Level.

3. Fill any A-level spaces with subjects where you're strong (7+) and interested, prioritising those that keep options open.

4. Check the workload balance: Are you taking three or four essay-heavy subjects? Three with substantial practical work? Make sure you're not creating an unmanageable workload.

5. If you're considering subjects that weren't open to you at GCSE such as Psychology, Law, Government and Politics and Economics, be sure to check the specification (so you understand what's covered) and talk to A-Level teachers to see if you're suited to the subject.

6. Have a back up plan for Results Day for alternative A-Levels you may want to do if you don't get the grades needed for a subject you have chosen.