This is not tax advice. Cross-border outcomes turn on facts this page cannot know: your visa category, your income mix, where your employer is incorporated, what you own and when you bought it. Use this to ask a qualified cross-border accountant better questions, and verify every figure against Australia's tax authority and, for the US side, the IRS guidance for citizens abroad.
Your position in Australia
In Australia, you become tax resident under this rule: Residents are taxed on worldwide income. Residency is decided by the ordinary 'resides' test plus three statutory tests: domicile (unless your permanent place of abode is outside Australia), presence in Australia for 183 days or more in an income year, and membership of a Commonwealth superannuation scheme. Citizenship is irrelevant. Someone arriving on a multi-year employment contract with their family is normally a resident from the date of arrival. Holders of temporary visas who qualify as 'temporary residents' for tax are generally taxed only on Australian-source income, with most foreign investment income exempt. Australia has an income tax treaty with the United States, and a totalization agreement, so social contributions are not paid into both systems on the same earnings. The top personal income tax rate in Australia is 45%, against a US federal top rate of 37%, and consumption is taxed at 10% against a US sales tax averaging 7.5%. As a US citizen you keep filing a US return from Australia whatever those rates are. Figures reviewed September 4, 2026.
Australia taxes residents on worldwide income. Residency turns on whether you 'reside' here, backed by three statutory tests: domicile, presence for 183 days or more, and Commonwealth superannuation membership. Sign a multi-year contract and bring your family and you are a resident from arrival.
Resident rates for 2026-27 are nil to A$18,200, 15% to A$45,000, 30% to A$135,000, 37% to A$190,000 and 45% above that, plus a 2% Medicare levy, so the effective top rate is 47%. GST is 10% and is already inside the shelf price.
One rule works in your favour. If you hold a temporary visa such as a 482 and qualify as a temporary resident for tax, Australia generally taxes only your Australian-source income and leaves most foreign investment income alone. That exemption ends the day your permanent visa is granted.
You still file a US return every year. The 1982 treaty, in force since 31 October 1983 and amended by the 2001 protocol, prevents most double taxation, and the foreign tax credit normally wipes out US liability because Australian rates are higher. The foreign earned income exclusion caps at $132,900 for 2026. The social security agreement in force since 1 October 2002 exempts self-employed Americans in Australia from US self-employment tax.
The unresolved problem is superannuation. Your employer must pay 12% of salary into a super fund, and the IRS has never settled whether that fund is a foreign grantor trust triggering Forms 3520 and 3520-A. Budget for a cross-border accountant.
The United States does not stop taxing you
The US taxes citizens on worldwide income regardless of where they live. Moving to Australia adds a second tax system; it does not remove the first one. Most Americans abroad end up owing little or nothing to the IRS, but that outcome is produced by filing correctly, not by leaving.
Two mechanisms produce that result — the foreign earned income exclusion, which reaches earned income only, and the foreign tax credit, which offsets US tax with income tax actually paid to Australia and reaches the passive income the exclusion cannot. You cannot apply both to the same dollar.
The full mechanics are the same wherever you move, so they live in one place: US taxes when you live abroad covers the exclusion tests, the credit, treaties and the saving clause, FBAR and FATCA thresholds, self-employment tax and state residency, and maps which mechanism reaches which kind of income — wages, dividends, gains, rent, pensions and Social Security each land differently. The rest of this page is what Australia specifically changes.
Which mechanism fits Australia
Australia's top rate of 45% sits at or above the US federal top rate of 37%. Local tax is doing the heavy lifting, so the foreign tax credit is the mechanism worth modelling first: it usually eliminates the US liability outright and leaves excess credits to carry forward.
Self-employment in Australia
A totalization agreement covers Australia, so a self-employed American here can normally be assigned to one social security system and exempted from the other, evidenced by a certificate of coverage. Arrange it at the start of the engagement, not at filing time.
US-side official references: FEIE ·Foreign tax credit ·FBAR ·FATCA reporting ·Totalization agreements
What Australia's agreements with the US actually change
The general mechanics above apply to every American abroad. What differs country by country is which of them Australia has an agreement to soften. Of the 15 countries covered on this site, 15 have a US income tax treaty, 12 have a totalization agreement and 12 have both. Australia is the case below.
| Issue | Status for Australia | What that means for you |
|---|---|---|
| Double tax on employment income | Treaty in force | A US–Australia income tax treaty exists, so each type of income has an assigned taxing country and there is a defined route to relief rather than an argument. You still file both returns; the treaty decides who taxes what first. |
| Being treated as resident by both countries | Tie-breaker available | Treaties carry a residence tie-breaker: permanent home, then centre of vital interests, then habitual abode, then nationality. It gives you a defensible answer in the year you move, when both countries can plausibly claim you. |
| Social security and payroll contributions | Totalization in force | A totalization agreement covers the US and Australia, so the same earnings are not charged to both social security systems. It also lets contribution periods in each country count toward qualifying for a benefit in the other. |
| Self-employment and freelancing | Certificate of coverage route | Where an agreement applies, a certificate of coverage from the system you do pay into is what you show the other one. Get it before the first invoice, not after the first assessment. |
| Pensions, retirement accounts and investment income | Treaty articles apply | Treaty articles usually address pensions, dividends, interest and capital gains separately from wages. Read the specific articles: a treaty that solves your salary can leave your brokerage account taxed in a way you did not expect. |
Treaty and totalization status is recorded from the sources listed at the foot of this page. Agreements are amended and protocols enter force on their own timetable, so check the current text before taking a position on a return.
Two numbers worth running before you move
Consumption tax, which nobody models
Income tax gets the attention. Consumption tax takes its slice every month without appearing on any return. A US household spending the national average net salary of $4,230 a month would need roughly $4,230 a month in Australia for the same basket, at Australia's overall price level. Of that, the VAT embedded in the prices is up to about $385 a month, against roughly $295 in embedded sales tax at home.
| Measure | United States | Australia |
|---|---|---|
| Headline consumption tax rate | 7.5% | 10% |
| Equivalent monthly basket | $4,230 | $4,230 |
| Tax inside that basket, per month | $295 | $385 |
| Per year | $3,540 | $4,620 |
A ceiling, not a bill. It assumes the whole net salary is spent, and in practice rent sits outside VAT in most systems while food, medicine, books and transport often carry reduced or zero rates, so real exposure lands below this line. The direction of the gap is the useful part: about $90 more per month than at home, before any reduced rate applies.
Marginal rate, read honestly
Australia's top personal rate is 45% against a US federal top rate of 37%, a gap of +8 points. That comparison is weaker than it looks in both directions. The US figure excludes state income tax, which can add several points on top. The Australian figure bites at its own threshold, which may be far lower or far higher in income terms than the US bracket it is being compared to. Top rates tell you the shape of a system, not your bill. Model your actual income against the brackets on the official site before you decide anything.
How Australia compares on tax across our dataset
Australia ranks 5 of 15 on headline top personal rate, lowest first, with 9 countries charging a higher top rate. Every row links to that country's own tax page.
| Country | Top rate | VAT | US treaty | Totalization |
|---|---|---|---|---|
| United States (baseline) | 37% | 7.5% | Not applicable | Not applicable |
| Mexico | 35% | 16% | Yes | No |
| Thailand | 35% | 7% | Yes | No |
| New Zealand | 39% | 15% | Yes | No |
| Italy | 43% | 22% | Yes | Yes |
| Australia · this page | 45% | 10% | Yes | Yes |
| United Kingdom | 45% | 20% | Yes | Yes |
| Spain | 47% | 21% | Yes | Yes |
| Norway | 47.4% | 25% | Yes | Yes |
| Germany | 47.5% | 19% | Yes | Yes |
| Portugal | 48% | 23% | Yes | Yes |
| Netherlands | 49.5% | 21% | Yes | Yes |
| Ireland | 52% | 23% | Yes | Yes |
| Sweden | 52.4% | 25% | Yes | Yes |
| Canada | 53.5% | 5% | Yes | Yes |
| Japan | 55.9% | 10% | Yes | Yes |
Headline rates only. They ignore social contributions, local surtaxes, wealth and inheritance taxes, and the very different incomes at which each top rate starts. A country with a high top rate that begins at a high threshold can cost a middle earner less than one with a lower rate that begins early.
The sequence of tax events in your move year
The move year is the messy one: part-year residence in two systems, two calendars, and deadlines that do not line up. These are the three points where Australia itself changes the answer rather than the US side — the full order, from modelling both mechanisms before you go to re-checking thresholds every year after, is in the shared guide.
- The day you arriveRecord the arrival date against something durable, such as a boarding pass, a lease or a registration receipt, because you may have to evidence it years later. It is the day the clock starts on the rule that decides your Australian tax residency: Residents are taxed on worldwide income. Residency is decided by the ordinary 'resides' test plus three statutory tests: domicile (unless your permanent place of abode is outside Australia), presence in Australia for 183 days or more in an income year, and membership of a Commonwealth superannuation scheme. Citizenship is irrelevant. Someone arriving on a multi-year employment contract with their family is normally a resident from the date of arrival. Holders of temporary visas who qualify as 'temporary residents' for tax are generally taxed only on Australian-source income, with most foreign investment income exempt.
- Weeks 1 to 8: register locallyA Australian tax number is usually a precondition for a bank account, a lease and a payroll run, so it happens early whether or not you feel like a taxpayer yet. Registering does not by itself make you resident; the residency rule above does. Because the US and Australia have a totalization agreement, the social contributions you start paying here should not be duplicated on the US side — but the exemption has to be claimed with a coverage certificate, not assumed.
- First US filing from abroadTaxpayers whose tax home is abroad get an automatic extension beyond the April deadline, and a further extension on request. The extension is for filing, not for paying: interest runs from the original date. The US-Australia treaty decides which country taxes what before either return is prepared, so read the article covering your income type first — it can change which return you complete first.
State residency: the bill people do not expect
Several states test domicile — your permanent home in intent, not where you physically are — so you can spend a full year in Australia and still be assessed as a resident of your old state, on your worldwide income. The relief described above is federal, and a state is not required to follow any of it. Severing residency rests on evidence you gather before you go, and it is easier to establish that you left cleanly on the way out than to argue it from Canberra two years later.
The full checklist, and which states are the difficult ones, is in the US expat tax guide — it applies whichever country you move to.
What to keep, from day one
Start a day-count log before you go, with arrival and departure dates for every trip, including trips back to the US. Two separate tests are settled on it: the US physical presence test, and Australia's own residency rule — Residents are taxed on worldwide income. Residency is decided by the ordinary 'resides' test plus three statutory tests: domicile (unless your permanent place of abode is outside Australia), presence in Australia for 183 days or more in an income year, and membership of a Commonwealth superannuation scheme. Citizenship is irrelevant. Someone arriving on a multi-year employment contract with their family is normally a resident from the date of arrival. Holders of temporary visas who qualify as 'temporary residents' for tax are generally taxed only on Australian-source income, with most foreign investment income exempt.
The rest of the list — payslips, year-end balances, cost basis, coverage certificates and exchange rates — is in the US expat tax guide — it is the same wherever you move.
Tax questions about Australia
Do I still pay US taxes if I live in Australia?
You still file every year, but you rarely owe. The 1982 treaty and the foreign tax credit normally eliminate US liability because Australian rates are higher, and the foreign earned income exclusion covers up to $132,900 for 2026. You will also have FBAR and FATCA reporting. The genuinely unresolved area is superannuation, where the IRS has not settled whether Forms 3520 and 3520-A apply.
Sources and review
The Australia-specific figures on this page, meaning the residency rule, treaty and totalization status, rates and notes, come from the sources below. The general US mechanics are described from published IRS, FinCEN and SSA guidance, linked inline above.
What these numbers are. The headline figures were re-derived from primary sources during review. Some category indices could not be matched to a published statistic and are reasoned estimates, marked as such in the list below. Where a source entry says a value is derived, estimated or crowd-sourced, that is exactly what it is: no international body publishes a like-for-like index for every category, and private insurance premiums are not published at all in most countries. Rent figures are national market averages, so a capital city will run above them. How the dataset is built.
- Reserve Bank of Australia, Exchange rates: 1 AUD = 0.7210 USD on 4 September 2026 (rate used for every AUD to USD conversion on this page). The RBA renders its daily rate table in JavaScript and blocks automated download of the F11 CSV, so the value was cross-checked against the US Federal Reserve H.10 release below. — accessed September 4, 2026
- US Federal Reserve, H.10 Foreign Exchange Rates weekly release dated 31 August 2026: the Australian dollar, quoted in US dollars per unit, at 0.7151, 0.7160, 0.7169, 0.7198 and 0.7166 for 24 to 28 August 2026. Cross-check on the 0.7210 rate used for AUD to USD conversion throughout this page. — accessed September 4, 2026
- Australian Taxation Office, Tax rates - Australian residents. Resident rates 2026-27: nil to A$18,200; 15c per dollar over A$18,200 to A$45,000; A$4,020 plus 30c to A$135,000; A$31,020 plus 37c to A$190,000; A$51,370 plus 45c above A$190,000, exclusive of the 2% Medicare levy. Primary source for income_tax_top_rate (45) and for the tax step in the avg_net_salary_usd_month derivation: A$108,352 gross gives A$4,020 + 30% of A$63,352 = A$23,026. — accessed September 4, 2026
- Australian Treasury, Income tax treaties: Australia-United States DTA signed 6 August 1982, in force 31 October 1983; amending protocol signed 27 September 2001, in force 13 May 2003 — accessed September 4, 2026
- IRS, Australia tax treaty documents (1982 treaty, 2001 protocol and technical explanations) — accessed September 4, 2026
- IRS, Figuring the foreign earned income exclusion: maximum exclusion $130,000 for 2025 and $132,900 for 2026 — accessed September 4, 2026
- US Social Security Administration, Totalization Agreement with Australia: the agreement covers Superannuation Guarantee contributions employers must make for employees, and 'Self-employed U.S. citizens residing in Australia do not have to pay U.S. Social Security contributions on self-employment income' — accessed September 4, 2026
- US Social Security Administration, International Programs, status of totalization agreements: Australia entry into force 1 October 2002 — accessed September 4, 2026
- PwC Worldwide Tax Summaries, Australia individual taxes on personal income: 2026-27 resident rates nil to A$18,200, 15% to A$45,000, 30% to A$135,000, 37% to A$190,000, 45% above; Medicare levy 2%; Medicare levy surcharge 1% to 1.5% for higher earners without private hospital cover. The 16% second-bracket rate fell to 15% from 1 July 2026 under the legislated personal tax cuts. The ATO entry above is the primary source for income_tax_top_rate; this entry corroborates it and is the source for the Medicare levy surcharge range of 1% to 1.5%. — accessed September 4, 2026
- PwC Worldwide Tax Summaries, Australia corporate other taxes: GST levied at 10% (source for vat_rate), and superannuation guarantee permanently increased to 12% from 1 July 2025 — accessed September 4, 2026
- PwC Worldwide Tax Summaries, Australia individual residence: resides test plus domicile, 183-day and superannuation statutory tests; temporary residents generally taxed only on Australian-source income — accessed September 4, 2026
- Foreign Investment Review Board (foreigninvestment.gov.au), Residential land guidance: from 1 April 2025 to 30 June 2029 foreign investors are generally prohibited from purchasing established dwellings; annual vacancy fee applies to under-occupied foreign-owned property — accessed September 4, 2026
Your New Country publishes reference information, not tax advice. Tax positions are fact-specific and the penalties for getting a cross-border position wrong are heavier than the fees for getting it checked. Before you file, take advice from an accountant who works both systems, and confirm everything against Australia's tax authority and the IRS, which administers the US rules described here.