Yes, Australia does allow dual citizenship. Since April 4, 2002, Australian citizens have been able to acquire another nationality without losing their Australian status, and foreign nationals who become Australian citizens are not required to give up the citizenship they already hold.1Parliament of Australia. Australian Citizenship Legislation Amendment Bill 2002 The current framework under the Australian Citizenship Act 2007 treats dual nationality as a recognized and protected status, subject to a handful of specific obligations around passports, parliamentary eligibility, and the narrow circumstances in which citizenship can be lost.
What Changed in 2002
Before April 4, 2002, acquiring a second nationality meant automatically losing Australian citizenship. Section 17 of the Australian Citizenship Act 1948 stripped citizenship from any adult who voluntarily acquired the nationality of another country.2Department of Home Affairs. Become an Australian Citizen Again (Resuming Australian Citizenship) The Australian Citizenship Legislation Amendment Bill repealed Section 17 outright, and from that date forward Australians could take up another passport without any effect on their Australian one.
Nothing in the Australian Citizenship Act 2007 requires citizens to choose between Australian nationality and any other, and nothing requires foreign nationals who naturalize as Australians to renounce their birth citizenship.3Australian Citizenship Act 2007. Australian Citizenship Act 2007 No. 20, 2007 The only way an Australian citizen voluntarily loses their status today is by formally applying to renounce it under Section 33, and the Minister cannot approve renunciation unless the person already holds, or will immediately acquire, citizenship of another country. That safeguard prevents anyone from becoming stateless.
People Who Lost Australian Citizenship Before 2002
Australians who lost their citizenship under the old Section 17 before April 4, 2002 can apply to resume it. To be eligible, you need to show that you ceased being an Australian citizen because you acquired another country’s citizenship as an adult during that period.2Department of Home Affairs. Become an Australian Citizen Again (Resuming Australian Citizenship)
The application is Form 132. You will need identity documents tracing your history from birth to the present, evidence of how your citizenship ceased (typically a foreign naturalization certificate), and overseas police clearance certificates if you spent significant time outside Australia in the past ten years. Applicants aged 18 and over must also satisfy good character requirements. There is no citizenship test, no pledge ceremony, and no residency period.
The Other Country’s Rules Still Matter
Australia’s permission is only half the picture. At least 39 countries worldwide do not permit dual citizenship at all, including China, India, Japan, Singapore, and Indonesia. If you naturalize in one of those countries, that country may require you to give up your Australian citizenship first, and Australia has no say in that. Before starting any process to acquire a second nationality, check the other country’s laws.
The same works in reverse. If you are a foreign national becoming Australian and your country of origin does not allow dual citizenship, taking up Australian nationality may cost you your original status under that country’s rules, not Australia’s.
Passport Rules for Dual Citizens
One obligation is not optional. The Australian Border Force states that Australians holding dual or multiple nationalities “should hold an Australian passport and use it to enter or leave Australia, even when using a foreign passport overseas.”4Australian Border Force. Travel Documents Arriving at an Australian airport on a foreign passport alone creates problems at immigration clearance.
Many other countries impose the same rule for their own citizens. The United States, for example, requires all U.S. nationals, including dual citizens, to use a U.S. passport when entering and leaving the country.5U.S. Department of State. Dual Nationality Dual citizens who travel between their two countries generally carry both passports and present the correct one at each border.
Consular Help Has Limits
Under the widely recognized master nationality principle in international law, when you are inside one of your countries of citizenship, that country treats you exclusively as its own national. If you run into legal trouble in your other country of citizenship, Australia’s ability to provide consular assistance is severely limited, because the other country is under no obligation to grant Australian consular officers access to you. The safety net of consular help largely disappears in a country that considers you its own citizen. It is worth understanding this before you travel.
Dual Citizens and the Australian Parliament
Politics is the one area where dual citizenship creates a hard barrier under Australian law. Section 44(i) of the Australian Constitution states that any person who is a “subject or a citizen” of a foreign power is incapable of being chosen or sitting as a Senator or Member of the House of Representatives. The provision has been enforced strictly. Candidates for federal Parliament must take reasonable steps to renounce any foreign citizenship before nomination day, and not knowing you held dual citizenship is not a defense.
With an estimated three to five million dual or multiple citizens in Australia, many of whom may not know they hold foreign citizenship through a parent or grandparent, this constitutional provision has produced ongoing eligibility disputes. If you are considering running for federal office and have any connection to foreign nationality through birth, descent, or marriage, resolve your status well in advance.
When Australia Can Take Citizenship Away
Involuntary loss of Australian citizenship is narrow and now runs through a court, not a minister acting alone. The Australian Citizenship Amendment (Citizenship Repudiation) Act 2023, which took effect on December 8, 2023, established the current framework. Under Section 36D of the Citizenship Act, the Minister for Home Affairs can apply to a court for an order stripping a person’s Australian citizenship, and the court can grant the order only if all of the following are met:
- The person is 14 years or older.
- The person holds citizenship of at least one other country, so the order will not leave them stateless.
- The person has been convicted of one or more serious offenses and sentenced to a combined imprisonment period of at least three years.
- The court determines the conduct was so serious it demonstrates the person has repudiated their allegiance to Australia.
The serious offenses that can trigger the process include terrorism, treason, espionage, foreign interference, and certain explosives-related crimes.6Department of Home Affairs. Citizenship Cessation The court weighs factors including the scale of the person’s involvement, the intended and actual impact of the conduct, and whether it caused or was intended to cause harm to human life. This process does not apply to Australians who hold no other citizenship, because stripping their status would leave them stateless.
Outside that narrow revocation pathway and voluntary renunciation under Section 33, Australian citizenship held alongside another is simply Australian citizenship. Holding a second passport does not weaken it.