Singapore citizens aged 21 or over who have acquired another nationality can formally give up Singapore citizenship. Male citizens with unfulfilled National Service obligations may be refused.
Where to apply in Australia
Online form, then originals posted to ICA in Singapore or, for people living in Australia, to the High Commission in Canberra.
Contact details for every office are on the page of the embassy and consulates of Singapore.
How to apply
Prepare certified copies and the forms first (the portal cannot save progress) | complete the application online at form.gov.sg (about 30 minutes) and pay by card or PayNow | send the notarised declaration, advisory notes and original Singapore documents by registered post to the High Commission with a cover letter | keep proof of postage
Documents you need
- Aged 21+, of sound mind, holds another citizenship
- Certified copies of foreign citizenship certificate, foreign passport and any name-change/marriage documents (notarised by a Notary Public, JP, Commissioner for Oaths or Singapore consular officer; English translation if needed)
- Notarised Statutory Declaration of Renunciation
- Advisory Note on Renunciation Implication
- MINDEF advisory note (males)
- Originals: Singapore NRIC, valid Singapore passport, citizenship certificate if any
Fees and processing time
- Official fee: SGD 35, paid online
Processing time: About 3 months from receipt of all documents; longer if a cooling-off period is chosen.
Good to know
Page dated 6 Nov 2025 (footer 19 Oct 2026).
Official sources
- canberra.mfa.gov.sg/consular-services/renunciation-of-singapore-cit…
- canberra.mfa.gov.sg/consular-services
Check before you apply
This page summarises information published by Singapore's official channels, last checked on 24 octubre 2026. Fees and requirements can change at short notice, so confirm with the office that will handle your case.
Spotted a change? Let us know.
More services of Singapore in Australia
- Cancellation of Employment Pass or Dependant Pass
- Certificate of Clearance (police)
- CPF account closure form certification
- Employment Pass information
- Lost or stolen passport and Document of Identity
- Marriage matters (information)
- Notarial services
- Renunciation of Singapore permanent residency
- Singapore citizenship application for overseas-born minors
- Singapore entry visa
- Singapore passport application