ICAS is an international schools competition assessing students in up to six subjects — English, Mathematics, Science, Digital Technologies, Writing and Spelling Bee — with questions that stretch beyond the standard curriculum into reasoning and problem solving. It is sat at school in a structured exam environment, usually for students from around Year 2 upward. The 2026 sittings run across August by subject; confirm your school’s exact dates as schools register and schedule within the official windows.
Test structures and providers described here last verified June 2026 against official sources. Individual school dates, fees and rules change every year — always confirm with the specific school or official body before you rely on a date.
ICAS is designed to recognise academic strength that goes beyond textbook completion. The Mathematics paper, for instance, goes well beyond calculation, asking students to apply reasoning, logic and creative problem solving to unfamiliar questions. English tests reading comprehension, language conventions and literary analysis with a range of text types. The common thread is reasoning applied to questions students will not have seen in class.
| Subject | 2026 window |
|---|---|
| Digital Technologies | 3–7 August |
| Writing | 3–7 August |
| English | 10–14 August |
| Science | 17–21 August |
| Spelling Bee | 17–21 August |
| Mathematics | 24–28 August |
Your school chooses the exact day within each window, so check with the school for the precise date and to confirm entry.
Each ICAS paper is a timed assessment sat in a structured exam environment at school, made up of multiple-choice and written questions designed to stretch students beyond the standard curriculum. The papers are tiered by year level, so a Year 5 student sits a different paper from a Year 8 student in the same subject.
Choose Maths or Science support for the skill your child needs next.
Our Maths and Science courses build related skills; they are not official ICAS papers.
ICAS is a good entry point that can reveal a taste for harder problems. Students who enjoy ICAS Maths or Science often progress to deeper competitions. See how ICAS Science compares with another popular option in our ICAS Science vs Big Science guide, and use a free diagnostic to gauge readiness for extension work.
ICAS results are reported as award certificates rather than a simple percentage. Students are placed into bands — such as High Distinction, Distinction, Credit, Merit and Participation — based on how they performed relative to others in the same year level, and a percentile or rank is also provided. This means a result reflects standing against peers, not just marks out of total. For a fuller explanation of bands, percentiles and how to read any competition result, see our guide on how students are ranked.
It is tempting to enter every subject, but quality beats quantity. A student who prepares well for two subjects they enjoy usually gains more — in both results and confidence — than one spread thinly across five. Use early-year strengths and the child’s own interest to choose. Maths and Science suit students who like puzzles and reasoning; English and Writing suit strong readers and writers. Because each paper is tiered by year level and pitched above the curriculum, even one well-chosen subject is a genuine stretch worth preparing for properly.
The 2026 ICAS sittings run across August by subject: Digital Technologies and Writing 3–7 August, English 10–14 August, Science and Spelling Bee 17–21 August, and Mathematics 24–28 August. Schools choose the exact day within each window.
ICAS offers up to six subjects: English, Mathematics, Science, Digital Technologies, Writing and Spelling Bee. Students can enter as many as they wish.
Each ICAS paper is a timed assessment sat at school in a structured exam environment, made up of multiple-choice and written questions pitched above the standard curriculum and tiered by year level.
Entry is through the school, which registers students and schedules the sitting within the official window. Check with your school to confirm entry and the exact date.
Choose subjects to their strengths, use sample papers to learn the above-curriculum question style, practise reasoning rather than recall, and add light timing so the pace feels familiar.
Results are out? ICAS results explained — what High Distinction, Distinction and Credit each mean, and what to do next at every band.
Choose a subject and one skill, such as interpreting a graph or following a multi-step argument. Ask the student to explain how they chose an answer, then compare with the worked explanation. Record whether the difficulty came from subject knowledge, reading, reasoning or time pressure. Change the next session in response to that evidence rather than assigning another full paper automatically.
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