Dual citizenship Vietnam–Australia: can you keep both, and what are the trade-offs?

Standing before the Australian citizenship ceremony, many Vietnamese pause at a question that is not in the citizenship test: once I become Australian, am I still Vietnamese?

The short answer: Australia does not require you to give up any citizenship — it fully permits multiple citizenship. The complexity sits on the Vietnamese side: Vietnamese law runs on a single-nationality principle, but contains a mechanism allowing Vietnamese citizenship to be retained upon foreign naturalisation in special cases. This article lays out both frameworks and the practical consequences — with one thing said upfront: this is a topic where a blog post cannot replace a lawyer; any decision should pass through formal Vietnamese legal advice.

The Australian side: multiple citizenship — no issue

Australian citizenship law lets Australian citizens hold as many other citizenships as they like. When you naturalise in Australia:

• Australia does not require you to renounce your existing citizenship;
• Australia does not mandatorily notify the other country of your naturalisation;
• Your rights and obligations toward Australia do not depend on whether you keep another citizenship.

For the full conditions and process from PR, see our Australian citizenship from PR guide. The dual citizenship question is therefore one-sided: only the Vietnamese side needs solving.

The Vietnamese side: a single-nationality principle — with an exception mechanism

Vietnamese nationality law operates on a single-nationality principle. But the principle has an exception mechanism: a person naturalising abroad who wishes to retain Vietnamese citizenship must fall within a special case and obtain the President of Vietnam’s permission.

Heavy hedging is required here, because this is the part most distorted by word of mouth:

• “Special case” is a concept with specific statutory conditions and assessment practice — not everyone who applies is approved;
• Vietnam’s legal framework, procedures and application practice change over time — what you heard from someone who naturalised five years ago may no longer hold;
• Therefore: before deciding to lodge Australian citizenship, consult a Vietnamese lawyer or competent authority about your own citizenship options at that point in time. This article sketches the framework; it is not legal advice on Vietnamese law.

The common reality in the community: many Vietnamese take Australian citizenship and the Vietnamese citizenship aspect is resolved under Vietnam’s prevailing rules — every case is its own; no “common experience” substitutes for an individual file.

If Vietnamese citizenship is lost — what changes in practice?

Losing Vietnamese citizenship does not mean losing your connection to Vietnam. The current framework for people of Vietnamese origin:

• Returning to Vietnam: enter on your Australian passport; people of Vietnamese origin can apply for the 5-year visa exemption certificate — multiple entries within its validity without applying for a visa each time (conditions and procedure per Vietnam’s current rules).
• Owning property in Vietnam: overseas Vietnamese (people of Vietnamese origin settled abroad) hold housing-ownership and land-use rights under their own category in Vietnamese land and housing law — different in scope and conditions from citizens. Vietnamese land and housing law has its own provisions and has been amended repeatedly — large asset transactions need a Vietnamese lawyer reviewing the specific case.
• Children born after your change of citizenship: a child’s nationality follows both countries’ rules at the time of birth — another layer to raise in the same legal consultation.

If you can keep both — how do two passports work?

Those permitted to retain Vietnamese citizenship while naturalising in Australia live with two passports, and the standard operating principle is consistency per country:

• Enter/exit Vietnam on the Vietnamese passport;
• Enter/exit Australia on the Australian passport (Australian citizens enter Australia on Australian passports);
• Keep declarations consistent with each border system — two passports are not a tool for picking roles at will but two parallel legal identities, each used in its proper place.

Questions to answer BEFORE lodging Australian citizenship

1. What specifically do I need Vietnamese citizenship for? Assets held in Vietnam? A long-term plan to return? Or primarily roots and identity (legitimate — but name it accurately)?
2. Would the 5-year visa exemption plus the Vietnamese-origin property category cover that need? For many people, the pragmatic answer is yes.
3. If I do need to retain Vietnamese citizenship, have I obtained Vietnamese legal advice — on whether I might fall within a special case, the procedure and the timing?
4. Is not naturalising an option? Staying on PR is also a path — in exchange you live with the Resident Return Visa maintenance game and the risks of losing PR during long stints abroad. No option is “absolutely right” — only the one that fits your real life.

Summary

• Australian side: multiple citizenship is fully lawful — Australia does not ask you to renounce Vietnamese citizenship.
• Vietnamese side: a single-nationality principle with a special-case retention mechanism requiring the President’s permission — the framework and practice change, so Vietnamese legal advice before deciding is non-negotiable.
• Without Vietnamese citizenship: you still return on the 5-year visa exemption and hold property rights under the Vietnamese-origin category (narrower than citizens’).
• With both: run two passports consistently — each country, its own passport.
• This is a two-legal-system decision — a blog post is a map, not a legal compass.

Weighing Australian citizenship against staying on PR? Book a free assessment and VisaAffairs will analyse the Australian side of the equation — and book the equivalent session with a Vietnamese lawyer for the other side.

References

• Australian citizenship — Department of Home Affairs — naturalisation requirements and Australia’s multiple-citizenship policy.
• Ministry of Justice of Vietnam — nationality — Vietnam’s current nationality legislation.
• Consular Department — Ministry of Foreign Affairs of Vietnam — the 5-year visa exemption certificate for people of Vietnamese origin.

This article is general information current at publication. Australian migration rules change regularly — check the date and contact VisaAffairs before relying on it for your own case. Book a consultation for advice on your specific circumstances.