Your first year in Australia changes more than where your salary lands. US citizens and Green Card holders generally remain subject to US tax on worldwide income, so Australian wages, investment income, and other earnings can still belong on a US return even when they are earned entirely overseas.
The adjustment is not a one dramatic tax event. It is usually several smaller changes arriving at once: two tax calendars, foreign accounts, new tax-relief options, and unfamiliar investments. For someone looking for US tax experts for Australians living abroad, or more specifically for Americans navigating Australia, getting those first-year details right can make later filings much easier.
Your Income May Now Be Reported In Two Countries
Start with the most obvious change: your Australian income does not replace your US reporting obligations.
Imagine moving from a state in the US to a big city in Australia this year and starting an local job a month later. Your 2025 US return can include the US salary earned before the move as well as Australian wages received afterward because US taxpayers abroad generally continue reporting worldwide income.
That does not automatically mean paying tax twice. But it does mean the same income may need to be considered under two different tax systems.
Your Move Date Makes The First Tax Year A Little Awkward
The calendars themselves create another complication. A US individual tax year generally follows January through December, while an Australian individual tax return covers the income year from July 1 to June 30.
So, if you move in September 2025, your first US return after the move will not line up neatly with one Australian return. Payslips, bank records, and dates of tax withheld may therefore matter more than simply copying figures from an Australian annual tax statement.
It feels administrative, and mostly it is, but those timing differences can affect later calculations.
Foreign Tax Credit And FEIE Decisions Start To Matter
Once you pay Australian income tax, relief from double taxation becomes part of the conversation. The Foreign Tax Credit (FTC) can provide a credit for qualifying foreign income taxes paid or accrued, subject to US rules and limitations. Another option is the Foreign Earned Income Exclusion (FEIE). For the 2025 tax year, qualifying individuals can exclude up to US$130,000 of foreign earned income.
Take note that FEIE eligibility depends on requirements such as the bona fide residence or physical presence test. A mid-year move can therefore make the first year less straightforward than later years.
Everyday Australian Accounts Can Create New Us Reporting
Opening an Australian bank account seems mundane. From a US compliance perspective, though, it may introduce reporting you never had before.
An FBAR is generally required when the aggregate value of reportable foreign financial accounts exceeds US$10,000 at any point during the calendar year.
Separately, Form 8938 may apply when specified foreign financial assets exceed the relevant thresholds. Taxpayers who qualify as living abroad generally have higher Form 8938 thresholds than taxpayers living in the US.
Neither form should simply be thought of as another tax bill; they are separate information-reporting requirements.
Australian Investments Deserve A Us Check First
One first-year mistake is assuming that an investment considered ordinary in Australia will be ordinary in the US too. Certain foreign corporations that meet US income or asset tests can be treated as Passive Foreign Investment Companies (PFICs), potentially bringing Form 8621 reporting into the picture for US shareholders. That makes Australian managed investments worth reviewing before buying rather than after filing season arrives.
Superannuation can also require separate cross-border analysis. The US treatment is not something you can safely infer simply from the Australian tax treatment, particularly when more complicated fund arrangements are involved.
Your Recordkeeping Needs To Improve Surprisingly Quickly
Once two tax systems are involved, keeping only an annual summary is rarely ideal. Save Australian payslips, bank and brokerage statements, records of tax paid or withheld, investment purchase and sale dates, and superannuation statements. The IRS also requires foreign-currency amounts used on US returns to be translated into US dollars under applicable exchange-rate rules.
Starting that habit in month one is far easier than reconstructing everything the following April.
Get Your First Us-australia Tax Year On The Right Track
The first year abroad often sets the pattern for the years that follow. For Americans who have recently moved to Australia, understanding US reporting requirements, foreign tax relief, financial accounts, and cross-border investments can help prevent unexpected filing issues later.
A country-specific guide for US expats living in Australia can be a useful starting point for understanding how US and Australian tax rules may interact, what forms may apply, and which areas commonly require additional attention.
