Let’s get one thing straight at the outset: the syllabus doesn’t change. Whether you pick A*–G (letters) or 9–1 (numbers), you’ll sit the same papers, on the same dates, using the same resources. What changes is how your achievement is reported. So, which scale gives you the clearest advantage in 2026? The honest answer: it depends on your goals and your school’s setup—but there are some sensible rules of thumb.

Executive summary (for parents in a hurry)

• Both systems are accepted worldwide by universities and employers. No doors close because you chose one over the other.

• 9–1 offers finer differentiation at the top. A grade 9 sits above the old A*, which can help standout candidates show they’re truly at the top of the pile.

• In some recent sessions, the threshold for the top grade has been a touch more accessible under 9–1 than A*–G (it varies by subject and session).

• If your school uses A*–G as standard, sticking with it is absolutely fine—and simpler administratively.

If you’d like the nuance (and you probably should), read on.

What’s actually different—and what isn’t

• What’s the same:

• Syllabuses, teaching content, exam dates, and resources.

• The overall purpose: to report what you know and can do.

• What differs:

• The reporting scale: eight letter grades (A*–G) versus nine numerical grades (9–1).

• Precision at the top end: 9–1 separates the strongest candidates more clearly.

It’s a bit like measuring height in centimetres versus half-centimetres—same person, slightly finer ruler.

Two landmarks to remember:

• The ‘A* split’: 8 and 9 both indicate A*‑level performance; 9 is that extra flourish.

The ‘C line’: many requirements reference a ‘C’; under 9–1, that typically maps to a 5 (sometimes 4, depending on context). Always check the exact policy for your target sixth‑form or college.

Decision framework: which should you pick in 2026?

High achiever aiming for the top:

Go 9–1. It gives you the chance to demonstrate exceptional attainment with a 9.

School defaults to A*–G:

Stay with A*–G. It’s globally recognised, tidy on transcripts, and won’t hinder applications.

Worried about recognition:

Don’t be. Both scales are equally accepted by universities and employers.

Strategist keeping an eye on boundaries:

9–1 can sometimes offer slightly more accessible top thresholds, but treat that as a bonus, not a promise.

Scenarios (because real life is messy)

• ‘I’m applying to very competitive sixth forms and scholarships.’

9–1 could help your profile stand out with 8s and 9s, signalling you’re at the very top of the cohort.

‘My grades vary a bit across subjects.’

Either scale is fine; choose the one your school supports best. Consistency across subjects looks neat.

‘Our school community is firmly A*–G.’

Choose A*–G and focus your energy on mastering the content—it’s the same learning, after all.

‘I like data and I’m targeting 9s.’

9–1 aligns with your goals; the finer resolution rewards marginal gains.

Practicalities: aligning with your school and documents

Confirm what your school can actually support administratively (not all centres can mix‑and‑match easily).

Make sure predicted grades and reports use the correct scale (admissions teams appreciate clarity).

If applying internationally, include the equivalence context when needed—most institutions already understand both, but a brief note never hurts.

Action checklist for 2026

• Check your school’s default grading system and any flexibility.

Review your recent mock results and where you tend to sit relative to the top bands.

Consider the competitiveness of your target sixth forms or colleges.

Glance at recent grade boundary trends in your key subjects (as a guide, not a guarantee).

Decide early—ideally by registration—so your preparation, targets, and reporting are aligned.

Bottom line

Both systems are globally valid. 9–1 gives a touch more precision at the top and can provide a useful signal for the strongest candidates. A*–G remains a solid, familiar choice—particularly if it’s your school’s default. Pick the scale that aligns with your goals, your school’s processes, and (importantly) how you like to be measured. Then get back to the real work: learning the material well enough that the scale, frankly, becomes a footnote.

Sources and further reference

• YouTube: ‘Which grading system is better for IGCSE: the 9–1…’
• 21K School: ‘IGCSE Grading System’
• Out‑Class: ‘IGCSE Grading System’

And if you’re still torn: ask yourself, ‘Where do I usually land—solidly strong or right at the top?’ If it’s the latter, 9–1 is a friendly companion. If not, A*–G will serve you perfectly well. Either way, you’re sitting the same exam—so let’s focus on learning that tricky bit of algebra (or those pesky enzymes) and bagging the grade you deserve.