SOF Olympiad Exam Dates 2026–27
SOF typically offers schools a choice of exam dates for each Olympiad rather than a single fixed date. The table below lists the published options for each of the 8 SOF Olympiads this session.
| Olympiad | Exam Dates | Last Verified |
|---|---|---|
| SOF IMO | 23 Oct 2026 · 26 Nov 2026 · 10 Dec 2026 | 2026-09-18 |
| SOF ISO | 30 Oct 2026 · 19 Nov 2026 · 3 Dec 2026 | 2026-09-18 |
| SOF IEO | 30 Sep 2026 · 27 Oct 2026 · 17 Nov 2026 | 2026-09-18 |
| SOF IGKO | 22 Sep 2026 · 6 Oct 2026 · 3 Nov 2026 | 2026-09-18 |
| SOF ICSO | 24 Sep 2026 · 17 Dec 2026 | 2026-09-18 |
| SOF ISSO | 30 Nov 2026 · 19 Jan 2027 | 2026-09-18 |
| SOF IHO | 23 Nov 2026 · 22 Jan 2027 | 2026-09-18 |
| SOF ICO | 30 Nov 2026 · 19 Jan 2027 | 2026-09-18 |
Level 2 dates (for IMO, ISO and IEO qualifiers in Classes 3–12) are announced separately by SOF after Level 1 results are declared. Dates are set by the Science Olympiad Foundation and may change — confirm with your school before finalising any preparation timeline.
Frequently Asked Questions
When is the next SOF IMO, ISO or IEO exam?
For the 2026–27 session, the first exam date option is 23 Oct 2026 for IMO, 30 Oct 2026 for ISO, and 30 Sep 2026 for IEO — see the full table above for every exam's date options.
What is the registration deadline for SOF Olympiads?
SOF does not publish a single public registration deadline for individual students — registration is handled through participating schools, which set their own internal deadlines ahead of SOF's schedule. Check with your school directly.
Do SOF Olympiad exam dates change every year?
Yes. SOF publishes a new exam schedule each academic session, and dates are not guaranteed to repeat from year to year. This page is updated for the 2026–27 session — always cross-check with the official SOF notification closer to your exam.
Preparing Against the Calendar?
A tutor can help build a preparation timeline that works backward from your child's actual exam date.
Tutors Parliament is an independent educational platform and is not affiliated with or endorsed by the Science Olympiad Foundation, HBCSE, MTA(I), IAPT or other examination organizations unless explicitly stated. Examination names and trademarks belong to their respective owners. Please verify registration dates and rules from the official organiser before making any decisions.