TL;DR
- The Domicile Test and 183-Day Test are the two residency tests most relevant to Australians living overseas.
- Passing the Domicile Test means Australia is still your permanent home, even if you are abroad, which keeps you a tax resident.
- Passing the 183-Day Test means you spent more than 183 days in Australia during the income year, which can make you a resident unless your usual place of abode is outside Australia and you do not intend to take up residence in Australia.
- Non-residents face different tax rates, must lodge a non-resident tax return in Australia for Australian-sourced income, and the CGT 50% discount is generally not available to foreign residents, though an apportioned discount may apply for any period of Australian residency during the ownership of an asset. From 1 July 2027, new legislation replaces the 50% CGT discount with cost-base indexation; residents can still use the discount for gains accrued before that date, and foreign residents generally cannot access it.
- These tests are fact-specific and require careful analysis of your personal circumstances, not a simple day count.
Why Does the Australian Tax Residency Test Even Matter?
Your tax residency status is the foundation of every Australian tax obligation you have. The Domicile Test and 183-Day Test are not academic questions; they determine whether you are taxed on worldwide income or only Australian-sourced income, whether you pay non-resident tax rates in Australia, whether you retain the CGT 50% discount on investment property, and whether you need to lodge a non-resident tax return in Australia at all. Generalist accountants frequently misapply these tests, applying rules designed for domestic clients to expat situations where the facts are fundamentally different. The stakes are high, and the analysis is more layered than a simple calendar count.
What Is the Domicile Test and Who Does It Apply To?
The Domicile Test is specifically designed for Australians who have left Australia but may still be treated as tax residents because Australia remains their permanent home. Under this test, you are an Australian tax resident if your domicile is in Australia, unless the ATO is satisfied that your permanent place of abode is outside Australia [4]. The critical concept here is “permanent place of abode,” which is not the same as where you currently rent an apartment.
The ATO examines a cluster of factors when applying this test:
- Whether you have established a settled, ongoing home in your overseas country
- The duration and continuity of your overseas stay
- Whether you have brought family members with you
- Whether you have maintained or abandoned ties to Australia (family home, bank accounts, club memberships)
- Your stated and demonstrated intention to remain overseas
Real expat example: Sarah is an Australian citizen who moved to Singapore for a two-year banking role. She rented out her Sydney apartment, retained her Australian bank accounts and car, and always described the move as temporary. The ATO would likely find her permanent place of abode is still Australia, meaning she passes the Domicile Test and remains a resident for tax purposes, even while physically living in Singapore.
What Is the 183-Day Test and How Is It Calculated?
Stepping back from the domicile analysis, a separate and distinct question is whether your physical presence in Australia during the income year is enough to make you a resident regardless of your domicile. The 183-Day Test states that if you are present in Australia for more than 183 days during the income year, you are a tax resident unless the ATO is satisfied that your usual place of abode is outside Australia and you do not intend to take up residence in Australia [1].
Key counting rules:
- Days are counted in the Australian income year (1 July to 30 June)
- Partial days of arrival and departure are generally counted as full days
- The 183 days do not need to be consecutive
- The test is a threshold, not a formula: exceeding 183 days raises a presumption of residency that you must rebut with evidence of your overseas home and intention not to take up residence in Australia
Real expat example: James is an Australian consultant living in Dubai. He returned to Australia for three months to manage a family health situation, attended school reunions, and worked remotely from his parents’ home. By year end he had clocked 194 days in Australia. Unless he can demonstrate a settled home in Dubai and no intention to resume Australian residence, he risks being treated as a resident for that income year.
How Do the Two Tests Interact?
Building on the two tests above, the harder question is understanding how they work together. The tests are not applied sequentially in the sense that failing one automatically resolves the other. The ATO can apply any test independently. This means:
| Situation | Domicile Test Result | 183-Day Test Result | Tax Residency Outcome |
|---|---|---|---|
| Moved overseas 5+ years ago, settled family home abroad, under 183 days in Australia | Non-resident (permanent abode overseas) | Non-resident (under threshold) | Non-resident |
| Moved overseas recently, Sydney property retained, brief visits only | Resident (domicile still Australia) | Non-resident (under threshold) | Resident (passes Domicile Test) |
| Lives overseas but returned for extended period exceeding 183 days | Non-resident | Resident (unless usual abode outside Australia proven and no intention to take up residence) | Likely resident for that year |
What Are the 6 Steps to Work Out Your Residency Position?
A related but distinct question is how to actually run through this analysis in a structured way. Here is a practical framework used in assessing Australian expat tax residency:
- Map your physical presence. For the relevant income year (1 July to 30 June), count every day you were physically present in Australia. Use passport stamps, flight records, and calendar entries.
- Apply the 183-Day Test threshold first. If you exceeded 183 days, proceed to assess whether you can rebut the presumption of residency by demonstrating your usual place of abode is outside Australia and that you do not intend to take up residence in Australia [1].
- Identify your domicile. Were you born in Australia or have you established an Australian domicile? If yes, the Domicile Test applies to you.
- Assess your permanent place of abode overseas. Do you have a settled, ongoing home in your country of residence? Consider your lease or property ownership, family presence, local bank accounts, memberships, and the open-ended or permanent nature of your overseas stay [4].
- Examine your Australian connections. Retained property, active bank accounts, close family remaining in Australia, and statements of intention to return all weigh toward continued Australian residency [2].
- Document your conclusion with evidence. Tax residency is a facts-and-circumstances determination. Your position needs to be supported by contemporaneous records, not reconstructed after the fact. If you are uncertain, this is the point at which Australian expat tax advice from a specialist becomes critical.
What Changes If You Are Classified as a Non-Resident?
Being correctly classified as a non-resident for tax purposes is not simply a label. It changes your entire compliance and tax position when lodging a non-resident tax return in Australia:
- You are taxed only on Australian-sourced income (rent, dividends, business income earned in Australia)
- Non-resident tax rates apply from the first dollar of Australian income, with no tax-free threshold (for the 2025-26 financial year, refer to current ATO guidance as these change annually)
- The CGT 50% discount is generally not available to foreign residents; however, where an asset was held during a period of Australian tax residency, an apportioned discount may apply for that period of residency
- The 15% Foreign Resident Capital Gains Withholding (FRCGW) applies on property sales above the relevant threshold
- Medicare Levy is generally not payable while you are a non-resident
- HECS/HELP debt repayment obligations apply based on worldwide income if you are a non-resident
Frequently Asked Questions
Q: Can I be a non-resident in Australia but still need to lodge an Australian tax return?Yes. Non-residents with Australian-sourced income (such as rental income from an Australian property or Australian dividends) are required to lodge a non-resident tax return in Australia for that income. Non-residency does not eliminate your Australian lodgment obligation.
Q: Does owning an investment property in Australia automatically make me a tax resident?No. Property ownership is one factor the ATO considers under the Australian tax residency test, but it does not on its own make you a resident. The overall pattern of your connections to Australia and your overseas living arrangements are what determine residency status.
Q: How does the Domicile Test differ from the 183-Day Test for non-resident tax in Australia?The Domicile Test focuses on where your permanent home is, not how much time you spend in Australia. The 183-Day Test focuses purely on physical presence. You can fail the Domicile Test (because you have established a home overseas) but still pass the 183-Day Test if you spend enough time in Australia in a given year.
Q: If I moved overseas several years ago and have not filed Australian tax returns, what should I do?You should seek specialist Australian expat tax advice as soon as possible. Overdue lodgments can attract penalties, but the ATO has processes for managing these situations. A specialist tax agent can assess your residency position across each relevant year and develop a lodgment strategy to resolve outstanding returns efficiently.
Q: Does the 183-Day Test use calendar days or the Australian income year?The 183-Day Test counts days of presence within the Australian income year, which runs from 1 July to 30 June, not the calendar year.
Q: Can I choose which residency test applies to me?No. The ATO applies all four tests and you are a resident if you satisfy any one of them. You cannot elect to apply only the test most favourable to your situation.
Q: Is state domicile the same concept as Australian tax domicile?No. State domicile rules in various jurisdictions relate to state-level tax obligations and use different criteria [2], [3]. Australian federal income tax domicile is determined under the Income Tax Assessment Act and ATO guidance, which is a separate analysis.
About ODIN Tax
ODIN Tax is Australia’s specialist tax agent practice for Australian expats and non-residents, and part of ODIN. With 2,300+ clients served across 40+ countries and a 4.9/5 Google rating from more than 400 verified reviews, ODIN Tax brings genuine depth to the tax residency determinations, non-resident CGT calculations, and expat compliance challenges that generalist accountants routinely get wrong. Headquartered in Hong Kong and led by Tax Director Pau Lam, ODIN Tax operates from the same cities its clients call home.
Unlike generalist firms, ODIN Tax exclusively serves Australian expats and non-residents. Every process, every piece of expertise, and every client engagement is built around the non-resident tax landscape, from tax residency determinations and Foreign Income Tax Offset applications to overdue lodgment strategy and FRCGW compliance. ODIN Tax is a Registered Australian Tax Agent.
Not sure whether you pass the Domicile Test or the 183-Day Test?
ODIN Tax specialises in exactly this kind of residency determination. Whether you need to clarify your residency status, lodge overdue returns, or understand how your tax position affects your Australian property, our team is ready to help.
References
- Australian Taxation Office. “Residency Tests.” ATO.gov.au
- Australian Taxation Office. “Domicile Test.” ATO.gov.au
- Australian Taxation Office. “Resides Test.” ATO.gov.au
- Australian Taxation Office. “Determining Your Permanent Place of Abode.” ATO.gov.au
