Does Singapore allow dual citizenship? (2026)
No — Singapore does not allow dual citizenship; you must choose by 21.
Singapore does not permit dual citizenship. Citizens who acquire another nationality are expected to renounce it, and dual nationals born with both must choose one by age 21. Naturalising as Singaporean requires giving up your other passport.
Does Singapore allow dual citizenship?
Singapore's constitution and citizenship rules don't allow adults to hold another nationality. Those born dual must renounce the other by 21, and acquiring a foreign citizenship as an adult can cost you Singaporean citizenship.
The catch to watch
Singapore actively enforces this — retaining a foreign passport as an adult citizen can lead to loss of Singaporean citizenship. There's no dual-status workaround.
How dual citizenship arises
Not applicable for duals — Singaporean citizenship is by birth, descent or naturalisation, singly held.
At a glance
| Item | Detail |
|---|---|
| Dual citizenship | Not allowed |
| Must renounce? | Yes — choose by 21 / renounce on naturalising |
| Enforcement | Strict |
| How acquired | n/a for duals |
| Passport | Very strong — ~190+ visa-free |
Where it fits in a borderless plan
A second nationality is one flag of several. Pair it with a low-tax tax residency and a self-custody plan for your Bitcoin. New to this? See which countries allow dual citizenship, or claim one through ancestry.
Frequently asked questions
Does Singapore allow dual citizenship?
No — Singapore does not permit dual citizenship for adults. Those born with two nationalities must choose one by 21, and naturalising as Singaporean requires renouncing your other passport.
What happens if a Singaporean keeps a foreign passport?
An adult Singaporean who holds or uses another nationality risks losing Singaporean citizenship — the rule is enforced.
Can my child hold Singapore and another citizenship?
A child born with both may hold them until 21, at which point they must choose one to retain Singaporean citizenship.
Official sources
Rules change — always confirm the current position with the primary authority:
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