NMOS 2026: Date, Format, Awards and Eligibility

Q: What is the NMOS 2026 format?
A: NMO∑ 2026 was one 90-minute written paper with 35 questions, held at participating schools on 14 July. NUS High released results to participating schools on 30 July 2026. The current organiser rules do not describe separate Heat and Special rounds for 2026.

Quick facts
NMOS is for Primary 5 students only. Schools registered participants; individual registration was not allowed. The 2026 fee was 25 Singapore dollars including GST and was non-refundable. Calculators were not allowed. Families should contact the participating school for the released result.

Last reviewed: 25 August 2026. The NUS High result notice, introduction, rules, awards, FAQ, book-sales, and published-solution pages were checked together.

What NMOS is

The National Mathematical Olympiad of Singapore, stylised NMO∑, is an NUS High School initiative run in partnership with the Singapore Mathematical Society. NUS High describes it as a way to generate interest in mathematics and challenge students' mathematical potential.

Eligibility and registration

The 2026 rules state:

• Primary 5 students only;
• registration through the student's primary school;
• no individual registration;
• registration from 20 February to 20 March 2026;
• 25 Singapore dollars per participant, including 9% GST; and
• no refund of the registration fee.

Schools have discretion to select participants. The official pages do not provide a private-entry alternative.

2026 date and format

Participating schools conduct NMOS on 14 July 2026 in any 90-minute slot from 2pm to 4:30pm.

The written paper has 35 questions: