AEIS and S-AEIS side by side
| AEIS | S-AEIS | |
|---|---|---|
| Levels | Primary 2 to 5, Secondary 1 to 3 | Primary 2 to 4, Secondary 1 to 2 |
| Application | July | Early January |
| Test | Early September | End February or early March |
| Outcome | December | April |
| School starts | January of the following year | April or May of the same year |
| Cambridge window (Primary) | Test taken from July of the previous year | Test taken from January of the previous year |
The test papers follow the same format as AEIS. The content tested is still the level before the one applied for.
The 2027 S-AEIS
From MOE's page as of 17 October 2026: applications "will open in early January 2027," tests "will be conducted in end February or early March 2027 (tentative)." For the Primary route, the Cambridge test must have been taken from January 2026.
Who uses it
- Applicants who arrived too late for the July AEIS window.
- Applicants who were unsuccessful in September and remain within the age band for a level S-AEIS offers. The age checker shows S-AEIS routes alongside AEIS ones; for some birth years the S-AEIS level is one below the AEIS level.
- Not available for Primary 5 or Secondary 3 entry.
Starting mid-year
A successful S-AEIS applicant joins a class that has already done a term. The first weeks are about catching up on what the class covered from January, so a child who has prepared on the full syllabus of the level below is better placed than one who prepared only for the test.
Official sources
AEIS Daily is an independent study resource. It is not affiliated with, endorsed by, or connected to the Singapore Ministry of Education (MOE), the Singapore Examinations and Assessment Board (SEAB), or Cambridge University Press & Assessment. AEIS test questions are not published; every question on this site is original and written to the MOE syllabus for the level tested.