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The qualification swap catches families out every year, and one decision matters far more than the rest.
Relocating for work is stressful enough without the schooling question. Most families get as far as finding a school with places, and stop there.
Then, somewhere in the paperwork, a word appears that nobody explained. Your child will not be sitting GCSEs. They will be sitting IGCSEs.
At that point most parents do one of two things. They assume it is the same qualification with an extra letter, or they panic and assume it is worth less.
Both are wrong, and the second one is wrong in a way that costs money on unnecessary tutoring. Here is what actually changes, and the one decision that is worth your attention.
IGCSE is not GCSE with a letter on the front
IGCSE stands for International General Certificate of Secondary Education. It is taken at the same age, at the same level, and it leads to the same places.
It is not, however, the same qualification. Cambridge IGCSE is set and marked by Cambridge International, which is part of the University of Cambridge. It is a separate awarding body with its own syllabuses and its own rules.
British universities accept IGCSEs as equivalent to GCSEs. So do UK sixth forms. A large number of independent schools in England teach IGCSEs by choice, and have done for years.
The differences are small in most subjects. In one respect they are not small at all.
The decision that actually matters: Core or Extended
This is the part worth reading twice. It catches out more relocating families than everything else combined.
In many Cambridge IGCSE subjects, students are entered for one of two tiers. Core covers less content. Extended covers the Core content plus additional material.
The tier is chosen before the exam, usually by the school, often months in advance. And it sets a hard ceiling on the grade.
The tier decision is made before the exam, and it cannot be undone afterwards.
A child entered for Core cannot be awarded anything above a C. It does not matter how well they do on the day. The grade is not available to them.
That matters because A Level entry usually asks for a B or better in the subject. A capped C can quietly close a door your child has not reached yet.
The gap between the tiers is real but it is not a different subject. Extended adds topics on top of Core. Families who catch this early often arrange help with Cambridge IGCSE to cover the extra material before the entry deadline passes.
Schools do not do this to be difficult. Entering a struggling student for Extended risks a lower grade, or none at all. Core is the safe choice. For a child settling in after a move, safe can be the wrong call.
Ask the school two questions. Which tier is my child being entered for, in each subject? And when is that decided?
If the answer to the second question is already in the past, ask whether it can be changed. Often it can, right up until the entry deadline.
What else changes
The rest of the differences are worth knowing but rarely worth worrying about. One of them sounds worse than it is.
Cambridge IGCSE is not regulated by Ofqual, the body that regulates GCSEs in England. In practice that means the two qualifications are free to differ in the detail, because nobody is forcing them to match.
The table below covers the differences that actually surface.
| GCSE in England | Cambridge IGCSE | |
|---|---|---|
| Who sets it | Exam boards such as AQA, OCR and Pearson Edexcel | Cambridge International, part of the University of Cambridge |
| Who regulates it | Ofqual | Not regulated by Ofqual |
| Grading scale | 9 down to 1 | A* down to G, with a 9 to 1 scale in some subjects and regions |
| Tiers | Foundation and Higher in some subjects | Core and Extended in many subjects |
| Exam sessions | Mostly May and June | June and November, with a March session in some regions |
| UK university entry | Standard | Accepted as equivalent |
The grading scale is the one that unsettles parents most. Seeing A* to G after years of hearing about grade 9s feels like going backwards.
It is not. A Cambridge IGCSE A* sits where a GCSE grade 9 or 8 sits. Universities have conversion tables and use them without fuss.
The tiering row is the one that matters, and it has its own section above. Everything else on that list is administration.
Moving part way through the course
This is where the real difficulty sits, and it has nothing to do with the qualification being international.
Your child studied a UK board’s syllabus for a year. They now join a school teaching a Cambridge syllabus. The subject is the same. The topics covered so far are not.
There will be material the new class covered last term that your child has never seen. There will be material your child knows that the new class will never touch.
Nobody maps this gap for you. The old school has moved on and the new school assumes the class is starting from where its own students are.
The fix is unglamorous. Get both syllabuses, sit down with them side by side, and mark every topic that does not appear on both.
It takes an evening, and it is the most useful thing you can do in the first month. Syllabuses are published free on the board’s website.
The November session is a safety net
One difference works quietly in your favour, and almost nobody mentions it at the point of moving.
Cambridge runs a November exam session as well as a June one. English state schools do not have a direct equivalent for most subjects.
That gives a mid year arrival somewhere to go. A child who lands in January, three terms behind on a syllabus they have never seen, is not forced to sit in June and hope for the best.
It also means a disappointing grade does not cost a full year. A resit in November lands before university applications close, rather than after.
Ask which session the school enters students for by default. Some enter everyone in June out of habit, even when November would suit a particular child better.
Coming back to the UK afterwards
Many relocating families are already thinking about the return trip. The short answer is that IGCSEs come home with you without difficulty.
UK sixth forms accept them. UK universities accept them. The main practical issue is that state school performance tables in England stopped counting international GCSEs after the 2017 reforms, which is a problem for schools rather than for your child.
Keep the certificates and the statement of results. Keep a note of the syllabus codes. Both get asked for later and both are tedious to replace from another country.
Six questions to ask before you accept the place
Ask these at the point of offer, not in September. Every one of them is easier to change early.
- Which board does the school use? Cambridge and Pearson Edexcel are both common abroad and they are not interchangeable.
- Which tier will my child be entered for in each subject, and who decides?
- When is the entry deadline, and can the tier be changed before it?
- Which syllabus code is being taught? Content changes between versions of the same subject.
- Which exam session will they sit, June or November?
- Does any subject require coursework, and does work from a UK school transfer?
None of this is complicated. It is just nobody’s job to tell you, and by the time it surfaces the useful decisions have often already been made.
A relocation is a long list of things going wrong in small ways. This one is avoidable with an evening of reading and two questions to a school office.
