VCE study scores, scaling and the ATAR explained

Most of Year 12 runs on SAC percentages. Then on results morning you get a study score for each subject and a single ATAR, and it isn't obvious how one became the other. The system has a reputation for being confusing, and with so much riding on it, that can feel daunting. Taken one step at a time, though, it's a lot easier to follow than it looks.

There are four steps. Your SACs and exams become a study score in each subject, and those study scores are then scaled so that different subjects can be compared fairly. Your best scaled scores add up to an aggregate, and the aggregate becomes your ATAR. The Victorian Curriculum and Assessment Authority (VCAA), which runs the VCE, handles the first step. The Victorian Tertiary Admissions Centre (VTAC), which handles applications to universities and TAFEs, does the rest.

I'm part of TMJ's quality and tutor team, and this is the explanation I'd want every student to have before results day. I've written it to you as a student, but parents working through it alongside their child should find it just as useful.

To keep it concrete, I'll follow one student the whole way through. Mia is made up, but her results come straight from the official figures for 2025, the most recent year published. She got a study score of 30 in all six of her subjects, right around the state average. That means scaling is the only thing that separates her subjects.

A study score is your result for a Units 3 and 4 subject, reported on a scale from 0 to 50. It's a ranking: it shows where you finished compared with everyone in Victoria who completed that subject in the same year, and the scale is set so the average sits around 30 (VCAA).

So a 30 puts you around the middle of the state, a 35 is a strong result that only about a quarter of students reach, and a 40 or more puts you in roughly the top 9%.

Each subject mixes school-based assessment with one or more exams, in proportions the VCAA sets. Most of the school-based part is SACs, the tests, essays and reports your school sets and marks across Units 3 and 4. A few subjects, such as Media and Product Design and Technologies, also have a school-assessed task (SAT), which is a larger project set by the VCAA and assessed by your teachers. Here's the mix for Mia's six subjects in 2026.

How SAC moderation works

Because every school sets and marks its own SACs, an 80% at one school isn't necessarily worth the same as an 80% at another. Before SACs are combined with exams, the VCAA moderates them, comparing each school's SAC scores in a subject with how the same group of students did on that subject's exam, which everyone in the state sits. If the group did better on the exam than its SAC marks suggested, its SAC scores generally move up, and if it did worse, they generally move down (VCAA).

Moderation never changes the order, so if you were third in your school's group on SACs, you're still third afterwards. The gaps between students carry through as well, although they can be stretched out or squeezed together, and your own exam mark only ever counts for you, since it's the group's exam results that set the adjustment.

Your percentages aren't then simply averaged. Each moderated part is compared with how the whole state did on it, then weighted and combined into a rank, and that rank is your study score (VCAA).

A 30 in Maths Methods and a 30 in Business Management both put you around the middle of that subject, but they're different groups of students. VTAC scales study scores to account for how strong the competition was, judged by how each subject's students did in their other subjects. Where the competition was stronger, scores move up, and where it was weaker, they move down (VTAC).

Scaling is worked out again every year from that year's results, so past years show the pattern without telling you this year's figures. Scaled scores can go as high as 55, and the figures below already include the extra adjustments VTAC applies to languages and maths (VTAC). Move the slider to see what a study score became in each subject in 2025, or add your own subject from the 77 in VTAC's report.

At 30, for example, Methods went up to 35 while Business Management went down to 27.

So should you pick subjects that scale up?

I'd be careful here, because it isn't quite the shortcut it looks like. Methods scales up because the students who take it tend to do well in everything. That same group is what makes a high study score in Methods hard to get, and choosing a subject for its scaling alone means signing up for that competition. VTAC's own advice is the same: a strong result in a subject you're good at and enjoy can be worth more than a weaker result in one that scales up (VTAC). You'll see that play out with Sam below.

VTAC builds your aggregate from your scaled scores in a set way (VTAC):

• Your best English score, from English, EAL, English Language or Literature. It always counts in full, even if it's one of your lowest.
• Your next three best scores, also in full.
• 10% of your fifth and sixth scores, if you have them.

There's also a limit on similar subjects: no more than two from the same group (two maths, two English, two languages and so on) can sit in your top four, and no more than three can count at all (VTAC). Here's Mia, with her 30 in every subject.

Mia's fifth and sixth subjects add 5.5 points between them, about 4% of her aggregate. The top four do almost all the work.

Three of Mia's top four subjects scaled up. Sam's went the other way. Sam, also made up, picked subjects they were good at and liked, and none of them scaled up in 2025. But Sam did better in them than Mia did in hers: 35 in English, Psychology, Business Management, PE and Health and Human Development, and 30 in General Maths. Every one of those results lost a point or more to scaling.

Even so, Sam's aggregate comes to 137.90 against Mia's 133.50. Scoring 35 instead of 30 in five subjects more than made up for the difference in scaling.

Mia's six 30s were each around the middle of their subject, yet her ATAR was 78.75, which surprises people who expect the middle to be about 50. The difference is in what each one ranks you against. A study score ranks you within one subject, while the ATAR ranks your combined, scaled results against your whole age group, which VTAC counts as including people who left school before Year 12 (VTAC).

The ATAR runs from 0 to 99.95, and an ATAR of 80 means you finished ahead of about 80% of that age group (VTAC). Each year VTAC lines up every student's aggregate and publishes a table showing which aggregates matched which ATAR (VTAC), and here are Mia and Sam on the 2025 one.

Sam finishes ahead, 81.30 to 78.75. The curve also steepens towards the top. In 2025, going from an ATAR of 80 to 90 took about 20 aggregate points and 90 to 95 took about 15, then 95 to 99 took another 22. Students are more spread out up there, so each step costs more.

Neither Mia nor Sam is a prediction. Scaling and the ATAR table both change every year, and 2026's won't exist until results come out. What carries over is how it works.

If you're in Year 12 now

Your position in your school's SAC order carries through, so one tough SAC doesn't sink a subject. The exams matter twice over, counting for you directly and setting the level for your school's SAC scores, which makes them worth everything you can give them.

If you're a parent

The two things most worth knowing are that one tough SAC doesn't sink a subject, and that the exams count twice. Around preference time, it's also worth sitting down together with VTAC's course guides and prerequisites, since that's where the ATAR turns into actual options.

Where TMJ can help

If one subject is the weak link in your top four, that's usually where extra help makes the most difference, and it's a big part of what we do at TMJ. We match each student with a university tutor who suits the subject and the way they learn, and the sessions follow their own school program, at home or online. We've run more than 14,800 VCE tutoring sessions since 2021, and our VCE tutoring page is the place to start.

On results day

Results and ATARs come out at 7 am on Thursday 10 December 2026 (VTAC). Your ATAR is one part of a university application: courses also look at prerequisites, and many add adjustment factors to make a separate selection rank, so an ATAR a little under a course's past guide can still lead to an offer. VTAC's site is the place to check your options and the change-of-preference dates.