Australian tax residency determines whether you are taxed on worldwide income. Here is how the four residency tests work and why getting this right matters so much.
Few questions in Australian tax law have more significant financial consequences than the question of tax residency. Whether you are an Australian tax resident determines whether you are taxed on your worldwide income or only on Australian-sourced income, what CGT rules apply to you, and what tax rates you pay.
Despite its importance, tax residency is widely misunderstood. Many people assume that if they live overseas, they cannot be Australian tax residents, or that if they live in Australia, they automatically are. Neither assumption is reliable. This article explains how Australian tax residency is legally determined.
Australian tax residents are taxed on their worldwide income, meaning all income from all sources, both Australian and foreign, must be declared in their Australian tax return. Non-residents are taxed only on Australian-sourced income.
In addition, Australian residents receive the tax-free threshold and certain tax offsets that non-residents do not. Non-residents pay a higher marginal tax rate on Australian-sourced income, with no tax-free threshold, and are excluded from the main residence CGT exemption on Australian property sales.
The difference between being a resident and a non-resident for tax purposes can mean a difference of tens or hundreds of thousands of dollars in tax liability on a given set of facts.
The primary test for Australian tax residency is the resides test. Under this test, a person is an Australian resident if they actually reside in Australia, that is, if Australia is their regular place of abode. This is a factual question that looks at where a person lives, where their home is, the length and continuity of their presence in Australia, and the nature of their connections to Australia.
A person who moves to Australia from overseas and establishes a home here will generally be a tax resident from the date they arrive and take up residence. A person who moves overseas and establishes a genuine home abroad will generally cease to be a resident from the date they depart, provided they do not maintain a regular place of abode in Australia.
Even if a person does not satisfy the resides test, for example because they are living overseas, they may still be an Australian tax resident under the domicile test. Under this test, a person is an Australian resident if their domicile is in Australia, unless their permanent place of abode is outside Australia.
Domicile is a legal concept that refers to the country a person considers their permanent legal home. It is not easily changed, and in many cases, a person who was born in Australia retains an Australian domicile even after many years of living overseas.
The domicile test was central to one of our most significant cases, where we successfully established that a client who had lived in the UK for more than three years was still an Australian tax resident, saving her from a $350,000 CGT liability.
The 183-day test applies to individuals who are not residents under either of the above tests. A person satisfies the 183-day test if they are actually present in Australia for more than half of the income year, that is, for 183 days or more, whether continuously or intermittently. There is an important proviso: the test does not apply where the Commissioner is satisfied that the person’s usual place of abode is outside Australia and they do not intend to take up residence here.
This test operates as a catch-all for people who spend a substantial part of the year in Australia but may not have established a regular place of abode here. It is most commonly relevant to people working in Australia on temporary assignments.
The fourth and narrowest test is the Commonwealth superannuation test. A person who is a contributing member of certain Commonwealth government superannuation schemes (the CSS or PSS) is an Australian tax resident regardless of where they live and work, as is their spouse and any child under 16. The test exists to keep Australian government employees posted overseas, such as diplomats and defence personnel, within the Australian tax system, and it rarely applies outside that context.
The residency tests are deceptively simple in summary, but their application to real-world facts can be extremely complex. It is also worth noting that the reform proposals announced in the 2021 to 22 Federal Budget, including a primary 183-day ‘bright line’ test, remain unlegislated as at mid-2026, so the four tests described in this article remain the law. The ATO has issued extensive guidance on residency, and there is a significant body of case law that illuminates how the tests apply in different circumstances.
Errors in residency determination are common, and costly. A person who incorrectly believes they are a non-resident may fail to declare Australian income that is actually assessable, or may incorrectly claim that CGT exemptions available only to residents apply to them.
If you are in any doubt about your residency status, particularly if you are moving to or from Australia, or have complex ties to multiple countries, seek specialist tax advice before lodging your return.
Related guides: Moving Overseas? The Tax Consequences of Leaving Australia; What is the “permanent place of abode” in Tax Residency?.
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