QCE scaling explained: how QTAC scales results for the ATAR

What QCE scaling does

Queensland students can qualify for an ATAR with thousands of subject combinations. QTAC's explanation is that scaling adjusts for the fact that it is more difficult to get a high result in some subjects than in others. That is not because some subjects are harder or easier in themselves, but because some attract a more competitive group. It adjusts each raw subject result for how well students did in their other subjects and for how hard it was to reach a particular result in the subject compared with all others.

The aim is that you are neither advantaged nor disadvantaged by the subjects you choose. Your QCE subject results, the marks and A to E grades from QCE results explained, are unchanged. Only the scaled results go into the ATAR.

The steps from results to ATAR

1. The QCAA gives QTAC your Units 3 and 4 results and any completed VET qualifications.
2. QTAC runs the subject scaling.
3. The best five scaled results from your eligible inputs are added into a Best Five Subject Aggregate.
4. Students are ranked from the highest aggregate down.
5. QTAC fixes how many students go in each of the 2000 ATAR bands, based on the Queensland Year 12 population. With about 60,000 students, around 30 go in each band: the top 30 students get 99.95, the next 30 get 99.90, and so on.

The 2000 bands run from 99.95 down to 0.00 in steps of 0.05. Units 1 and 2 do not go into the ATAR.

Which results can go in

• Five General subjects at Units 3 and 4; or
• Four General subjects plus one Applied subject at Units 3 and 4; or
• Four General subjects plus one completed VET qualification at Certificate III level or above.

You must also pass an English subject with at least a C to be eligible, though that result only counts in the aggregate if it is among your best five scaled results. Results can be collected over five years.

Rules about combinations

• Only General English subjects or Applied English subjects can be included, but not both. The same goes for General and Applied Mathematics: you cannot count Mathematical Methods and Essential Mathematics together.
• You can count both General Mathematics and Mathematical Methods and Specialist Mathematics, and both English and Literature, and a language with its Extension.
• Only one result for the same subject, taken as a General subject and as a Senior External Examination, can be included.

Scaling VET qualifications

VET results are recorded as completed or not, with no grade. QTAC scales VET at each AQF level by a default starting value and by averaging the ranks of students in the cohort who completed that level. This means every completed Certificate III has the same scaled score in a given year, whichever industry and provider. The scaled scores change from year to year with each Year 12 cohort.

Scaling is not the same as an adjustment factor

Adjustment factors, which used to be called bonus points, are added to an ATAR or other rank to make a selection rank for a particular course at a particular institution. They do not change the ATAR. Common types include subject adjustments for a language other than English or Specialist Mathematics, and equity, location and elite athlete adjustments. Each institution limits them, for example by capping the increase to your selection rank. The subjects whose scaled results count towards your ATAR are covered in the ATAR in Queensland.

Practise for the raw result

Scaling can only work with the results you earn. Sit a short timed paper from our Year 12 Maths, Year 12 Physics, Year 12 Chemistry or Year 12 Biology papers. They are 8 questions worth 25 to 35 marks, and the results page shows a predicted grade from A to E with typical cut-offs, not the QCAA's. Mathematics and science subjects count the external assessment for 50 per cent, so exam practice carries weight. The 2026 exam days are in QCE exam timetable 2026.

Common mistakes about QCE scaling

• Choosing subjects for their scaling. The scaled result depends on the group of students that year. QTAC says you are neither advantaged nor disadvantaged by your choice.
• Expecting every subject to count. Only your best five scaled results go into the aggregate.
• Counting Units 1 and 2. They do not go into the ATAR.
• Mixing up scaling and adjustment factors. Adjustment factors act on a selection rank, not the ATAR.

Read next

Australia · QCEATAR in Queensland: how QTAC works it out from your QCEThe ATAR in Queensland explained: who gets one, the best five rule, English requirement, how to get yours from QTAC, and the 2026 release date.