iGCSE subjects list: what's available and how to choose

If you're mapping out your Grade 9 and Grade 10 years, the first big question is usually the same one: which iGCSE subjects should I take? Most students end up picking somewhere between 5 and 10 subjects, and the shape of that basket matters a lot for sixth form, IB, or A Levels down the line.

The good news is that the two main iGCSE boards, Cambridge International (CAIE) and Pearson Edexcel, offer broadly similar catalogues. You'll find maths, English, sciences, humanities, languages, and creative or skills-based options across both. The specific syllabus codes and paper structures differ, and some schools only offer one board, so your first move is always to check what your school runs.

This guide walks through the main subject groups, flags a few of the well-known Cambridge syllabus codes so you can look them up on cambridgeinternational.org, and then covers how to make your pick.

Almost every iGCSE student takes maths, English, and at least one science. These are the load-bearing subjects for sixth form and for most university applications.

Mathematics. Cambridge iGCSE Mathematics (0580) is offered at two tiers, Core and Extended. Extended is the one you want if you're planning to do A Level Maths, Further Maths, or any quantitative degree. Core still gives you a full iGCSE grade but caps at a lower maximum. Edexcel's equivalent is International GCSE Mathematics A or B, and it works similarly with a Foundation and Higher tier split.

English. This is where the options open up. If English is your first language, Cambridge First Language English (0500) is the standard choice. If you're studying in an international school and English is a second language, Cambridge English as a Second Language (0510, where speaking is a separate endorsement, or 0511, where speaking counts into the overall grade) is very common. Many students also take English Literature (0475) alongside their language qualification, especially if they enjoy analysing texts or want to keep humanities options open at A Level.

Sciences. You can take the three sciences separately as Biology (0610), Chemistry (0620), and Physics (0625), which gives you three grades and three full qualifications. If that's too heavy a load, Cambridge offers Combined Science (0653), which awards a single grade covering all three, and Coordinated Science (0654), which is a double award covering the same content in more depth and giving two grades. Most students heading toward medicine, engineering, or a science-heavy sixth form take the three separate sciences.

Humanities are where students often build in balance, especially if they're loading up on sciences and maths.

History and Geography are the classic pair. Cambridge offers both, and they're well regarded for developing essay writing and source analysis skills. Geography in particular is a nice bridge subject because it touches physical science, economics, and social studies.

Business Studies (0450) and Economics (0455) are popular with students who think they might go into commerce, finance, or business at university. Business Studies is broader and more applied. Economics is more theoretical and mathematical, and it's a good preview of what A Level Economics feels like.

Sociology is offered under Cambridge and covers topics like family, education, and social stratification. It's less common than history or geography but a solid pick if you're interested in the social sciences.

Global Perspectives (0457) is a slightly different beast. It's skills-focused rather than content-focused, built around research, teamwork, and argument. Universities tend to view it positively as evidence that you can think critically across disciplines.

Modern languages are a strong part of the iGCSE catalogue, especially for international schools.

French, Spanish, German, and Mandarin are the most widely offered. Cambridge splits language qualifications into two levels. First Language versions, such as Mandarin First Language (0509 or 0518), are aimed at native or near-native speakers and involve reading and writing at a fluent level. Second Language versions, such as Mandarin Second Language (0523), are aimed at learners who've studied the language for a few years and are working toward practical competence.

Depending on your school, you may also see Hindi, Urdu, Arabic, Japanese, Portuguese, and other regional languages on the option sheet. Cambridge in particular publishes syllabuses for a long list of first and foreign languages, so it's worth checking the full catalogue on cambridgeinternational.org if you have a heritage language you'd like to certify.

Latin and other classical languages are also available at some schools, though they tend to be timetabled through smaller specialist departments.

This is the group where students often round out their timetable with something they enjoy, or with a practical qualification.

Art & Design is a portfolio-based iGCSE that gives you real space to develop a body of work. It's a strong pick if you're thinking about architecture, design, or an art foundation later on.

Music covers performance, composition, and listening, and it's a good fit if you already play an instrument or sing.

Physical Education (0413) combines practical performance with theory covering anatomy, training, and psychology of sport. It works well for students who want to keep sport formally in their timetable.

ICT (0417) focuses on practical use of software, databases, spreadsheets, and web tools. It's applied and useful in its own right.

Computer Science (0478) is different. It's much more theoretical, covering algorithms, data representation, and programming logic. If you're thinking of studying computer science, engineering, or maths at university, this is the one.

Additional Maths (0606) is a step up from standard iGCSE Maths and covers content that overlaps with early A Level Maths. It's a good bridge subject if you're strong at maths and heading for A Level Further Maths.

Accounting (0452) is the technical cousin of Business Studies and is worth considering if you're aiming at a finance or accounting degree.

There's no universally correct combination, but four things usually shape a good decision.

What your school offers. This is the biggest constraint. Schools rarely offer the full Cambridge or Edexcel catalogue, and options are grouped into blocks so you can't always combine everything you'd like. Get the option form early and work backwards from what's available.

Workload. Ten iGCSEs is a heavy programme. If you're aiming for straight top grades, eight strong subjects can be a better bet than ten mixed ones. Talk to your teachers about how much time each subject really takes.

University pathway. If you know you want to study medicine, engineering, or economics, look up the typical A Level requirements for those degrees and work backwards. Medicine, for example, effectively needs Biology and Chemistry at iGCSE, plus strong grades in maths and English.

Personal interest. This one gets underweighted, but subjects you enjoy are the ones you'll revise for. A subject you love with a grade 8 beats one you tolerate with a grade 6, in most contexts.

If you're revising for iGCSE Maths or Sciences, Cognito has structured video lessons, quizzes, and past paper practice mapped to the specification. Try it free at cognitoedu.org.