You can get dual citizenship in Australia because Australian law lets its citizens hold another nationality at the same time. Whether you actually keep your original citizenship depends entirely on that country’s rules: some nations strip your citizenship the moment you naturalize elsewhere, others require a formal renunciation, and many allow you to hold both without issue. On the Australian side, you qualify through one of three routes, and the right one depends on where you were born and who your parents are.1Australian citizenship comes through one of three routes, and which one applies to you depends on where you were born and your parents’ citizenship status.
Which Pathway Applies to You
Three routes lead to Australian citizenship, and only one will fit your situation.
If you were born in Australia and at least one parent was an Australian citizen or permanent resident at the time, you already are an Australian citizen automatically. Your birth certificate and your parent’s citizenship or residency documents prove it.
If you were born outside Australia on or after 26 January 1949 to at least one Australian citizen parent, you apply for citizenship by descent. There is no age limit and no registration deadline, but it is an application, not an automatic status.
If neither applies and you live in Australia as a permanent resident, you go through the conferral pathway, which is the standard naturalization process. This is the longest route and has the most requirements.
Citizenship by Descent for Children Born Overseas
If one parent was an Australian citizen when you were born abroad, you can apply for citizenship by descent at any age. Applicants aged 18 or over must meet the good character requirement, which usually means disclosing any criminal history and, in some cases, producing police clearances.
One rule surprises people whose Australian parent also grew up abroad. If your parent themselves became Australian by descent or by overseas adoption, they must have lawfully lived in Australia for at least two years before you can apply. This stops citizenship being handed down through generations who never actually lived in the country.
You lodge the application online through the Department of Home Affairs ImmiAccount portal, and you can do it from inside or outside Australia. You will need identity documents, your full birth certificate showing both parents’ names, and proof your parent was an Australian citizen when you were born (their Australian birth certificate or citizenship certificate works). If you have spent a cumulative 12 months or more outside Australia since turning 18, add police clearances from any country where you stayed 90 days or more.
Descent applications do not require a ceremony. Once approved, your citizenship certificate arrives by registered post.
Citizenship by Conferral for Permanent Residents
Conferral is the route for permanent residents. You must hold a permanent visa, or be a New Zealand citizen on a Special Category subclass 444 visa, both when you apply and when the Department decides your application.
The residence rule is where most applicants have to work through the calendar carefully. You need four years of lawful residence in Australia immediately before applying, with the final 12 months on a permanent visa. Across those four years, your total time outside Australia cannot exceed 12 months, and in the last 12 months before you apply, absences cannot exceed 90 days.
Applicants aged 18 and over must also meet the good character requirement. The Department weighs criminal convictions, outstanding court matters, and general conduct to judge whether you are likely to uphold Australian laws. Police clearances from countries where you have lived may be required.
Some applicants get exemptions. Members of the Australian Defence Force who have served at least 90 days may be released from the standard residence rule, and family members on certain employer-sponsored visa applications can also qualify. The Minister for Home Affairs has discretion to waive residence requirements in hardship cases, including for spouses of Australian citizens who spent time abroad while keeping close ties to Australia.
The Citizenship Test
If you apply through conferral and are between 18 and 59, you have to sit the citizenship test before your application can be approved. It is computer-based, takes 45 minutes, and contains 20 multiple-choice questions drawn from the official booklet Australian Citizenship: Our Common Bond.
You need at least 75 percent overall to pass, and you must answer all five Australian values questions correctly. Miss even one values question and you fail regardless of your total score. Results come back immediately. If you fail, you can rebook after a waiting period. Applicants aged 60 and over are not required to sit the test.
How to Apply, Fees, and Timing
Most applications are lodged online through ImmiAccount. You will upload identity evidence (passport, driver’s licence, or national identity card), a passport-sized photograph, proof of your residential history, and any required police clearances. Make sure your application details match your supporting documents exactly, because inconsistencies slow processing.
The conferral application fee is $575 for the 2025–26 financial year, with a concessional rate of $80 for eligible applicants. Fees are adjusted annually, and the descent fee is set separately, so check the Department of Home Affairs website before lodging. After you apply, you may be called in for a citizenship test appointment or an identity interview.
Processing under general conferral eligibility is not fast. Department figures show half of applications reach the ceremony within 11 months, and 90 percent are finished within 14 months. Plan around a year from application to pledge.
The Ceremony Makes It Official
Approval is not the finish line for conferral applicants. You must attend a citizenship ceremony and make the Australian Citizenship Pledge before your citizenship takes legal effect. Invitations usually go out about four weeks before the ceremony date, and the gap between approval and ceremony depends on demand in your local government area. If you cannot make the scheduled date, contact the organizer named on your invitation to be moved to the next available ceremony. Until you take the pledge, you are not a citizen.
New Zealand Citizens on a Subclass 444 Visa
New Zealand citizens living in Australia on a Special Category (subclass 444) visa have a direct route that does not require obtaining a separate permanent visa first. For citizenship purposes, the Department treats SCV holders as permanent residents.
If your SCV was granted before 1 July 2022, you have been treated as a permanent resident since 1 July 2022, which meant applications became possible from 1 July 2023 onward if you met the four-year residence requirement. If your SCV was granted on or after 1 July 2022, permanent residency runs from the date the visa was granted. The residence period, good character check, and citizenship test all apply as normal.
Keeping Your Existing Citizenship
Australia’s rule is simple. Becoming Australian does not require you to renounce anything, and taking on another country’s citizenship later does not cost you your Australian one. Every complication comes from the other side.
Some countries do not recognize dual nationality and will cancel yours automatically when you naturalize as Australian. Others require you to file a formal renunciation. Before you apply, contact the embassy or consulate of your other country and confirm what happens to your existing citizenship when Australia confers its own. This is the single check that determines whether you end up with dual citizenship or a swap.
Living as a Dual Citizen
Once you hold two citizenships, a few practical rules take effect. Australian law requires you to use your Australian passport when entering and leaving Australia, and your other country may require its passport at its own border. Most dual citizens carry both and use each at the relevant checkpoint.
Australian consular protection has hard limits inside your other country of nationality. If you travel there on that country’s passport, local authorities may not treat you as Australian, and the Australian government may be unable to help if you are arrested, detained, or called up for military service. The Department of Foreign Affairs is explicit that it cannot extract you from military obligations or legal trouble in a country that regards you as its own.
You remain subject to Australian law at all times, including while overseas. Voting in federal elections is compulsory for enrolled Australian citizens, with a $20 administrative fine for failing to vote. The obligation applies even if you live abroad, though enforcement against overseas residents is limited in practice.
A Warning for U.S. Citizens
American citizens picking up Australian citizenship take on an obligation that citizens of most other countries do not. The United States taxes its citizens on worldwide income regardless of where they live, and an Australian passport does not change that. If you are a U.S. citizen in Australia, you file a U.S. federal tax return every year reporting your global income.
For tax year 2026, the foreign earned income exclusion lets you exclude up to $132,900 of earned income from U.S. tax if you meet either the physical presence test or the bona fide residence test. It covers most Australian salary and self-employment income, but not investment income, pensions, or rental income. The Foreign Tax Credit gives a dollar-for-dollar offset for income tax paid to Australia, which handles most of the double-tax risk on income the exclusion misses. The U.S.–Australia income tax treaty adds further relief on pensions, dividends, and some other categories.
Reporting obligations sit on top of the tax itself. If the combined value of your foreign financial accounts crosses $10,000 at any point in the year, you must file a Report of Foreign Bank and Financial Accounts (FBAR) with FinCEN. Form 8938 separately requires disclosure of foreign financial assets above higher thresholds. Both apply on top of your Australian tax filings, and penalties for missing them can far exceed any tax that was actually owed. If you will hold both citizenships, use a tax professional who works in both systems.