Subject scaling -

Best- & worst-scaling WACE subjects for 2026 planning - 2025 TISC data

Plan your 2026 WACE subjects with the latest available TISC scaling data (2025): the highest- and lowest-scaling mainstream WA courses, plus choice advice.

By The Polarbear Team4 min read

Best- & worst-scaling WACE subjects for 2026 planning - 2025 TISC data
Data source: TISC scaled-score percentiles, report TR320C (2025) · 2025 data · checked August 2026How we verify →

For 2026 planning, the latest available TISC scaling data is 2025. In that dataset, Chinese: Second Language, Mathematics Specialist and French: Second Language scaled the highest of WACE courses with 50+ candidates, while Chinese: First Language scaled the lowest. Here are the top and bottom 10 of WACE courses with 50+ candidates, with a link to each subject’s full scaling table. We will re-stamp the rankings when TISC publishes the next dataset.

Highest-scaling WACE courses with 50+ candidates

Lowest-scaling WACE courses with 50+ candidates

Should you pick a subject because it scales?

The pattern is consistent year to year: the most demanding courses scale up because they attract academically strong cohorts. But that doesn’t mean you should choose a subject just because it sits near the top of this list.

Scaling rewards how well you perform relative to everyone else in that subject. A strong result in a subject you’re genuinely good at will usually beat a weak result in a higher-scaling subject you find brutal. Pick courses you can excel in and enjoy - scaling follows performance, not the other way around.

Curious about a specific subject? Open its page from the full WACE scaling list, or read how the WACE ATAR is calculated.

Frequently asked questions

Ranked by mean scaled score /100, from the TISC 2025 Course/Subject Statistics Summary - Scaled Scores for Specified Percentiles (TR320C). Scaled-score distributions from TISC’s 2025 course statistics (report TR320C). TISC and SCSA standardise combined marks before scaling, so WA publishes no raw-mark-to-scaled-score conversion - for any raw mark there is a range of scaled scores. These figures are indicative of how a course scaled, not a per-mark lookup.


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