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Earnings from a different country may lead to an uneasy tax dilemma: is it possible to pay tax twice – first in the country where the income has been generated, and then in Australia?
Many Australians who are tax residents in Australia will be required to add their foreign income to the tax return in Australia. This could include income earned in foreign countries like salary, rents, dividends, interest, pension, business earnings, and some types of capital gains. The Australian Taxation Office says that Australian tax residents should normally declare foreign income along with the Australian income.
However, there is a way to minimize double taxation in Australia. If you have paid foreign tax on your income, you may be entitled to receive a Foreign Income Tax Offset (FITO).
However, claiming FITO is not as simple as entering the foreign tax amount you have paid. The factors such as your eligibility, the foreign tax you have paid, the income, and the relevant foreign tax offset limit are just some of them.
A Foreign Income Tax Offset helps eligible Australian taxpayers receive relief when the same foreign income has been taxed in another country and is also subject to Australian tax.
For example, imagine you are an Australian tax resident and receive rental income from a property in the United Kingdom. You pay eligible UK tax on that rental income and must also include the income in your Australian tax return.
Rather than simply ignoring the overseas tax, the Australian tax system may allow you to claim an offset for eligible foreign tax paid.
The purpose is to reduce the possibility of the same income being taxed twice. However, the offset is generally not a separate cash payment from the ATO. It reduces Australian tax payable, subject to the relevant rules and limits.
The rules mainly apply to Australian residents for tax purposes who have foreign income that is also subject to Australian tax. The ATO’s 2026 guidance states that the system mainly applies to Australian resident taxpayers.
This is why determining your tax residency is an important first step.
If you are an Australian resident for tax purposes, you generally need to declare your worldwide income. If you are a foreign resident, your Australian tax obligations can be different and generally focus on Australian-source income.
For Australians living or working overseas, residency can sometimes be complicated. Factors such as where you live, your family and economic ties, the length of your stay and your circumstances can influence the outcome.
Foreign income can come from many different sources. Depending on your circumstances, you may need to consider:
The ATO requires Australian tax residents to declare foreign income in their Australian tax return.
The important point is that foreign income should not simply be left out because tax has already been paid in another country.
Consider a simple example.
Suppose an Australian tax resident earns the equivalent of $20,000 from an overseas investment during the financial year.
They pay $3,000 of eligible foreign tax on that income.
The $20,000 may need to be included in their Australian tax return. The foreign tax already paid may then be relevant when calculating their Australian tax position.
However, the Australian offset is subject to a limit. You cannot automatically assume that every dollar of foreign tax paid will reduce your Australian tax by the same amount.
The ATO specifically provides calculation rules for determining the maximum amount that can be claimed.
This is one of the most common areas where taxpayers make mistakes.
Not necessarily.
The amount of tax you paid overseas and the amount you can claim in Australia are not always identical.
The offset is subject to a FITO limit, which can restrict the amount available. If the foreign tax you paid exceeds the amount allowed under the Australian calculation, you may not be able to claim the entire amount.
The ATO also confirms that the offset is not a refundable tax offset. In simple terms, it generally cannot create an additional refund once your Australian tax payable has been reduced to nil.
This makes it important to calculate the offset rather than simply copying the foreign tax amount into your Australian return.
Foreign property is a common source of overseas income for Australians.
Suppose you live in Perth and own an investment property in another country. You receive rent from that property and pay tax in the country where the property is located.
If you are an Australian tax resident, the foreign rental income may need to be declared in Australia as part of your worldwide income.
You may also have expenses associated with the property, such as:
The Australian treatment of those expenses can be different from the rules in the country where the property is located.
If foreign property is a significant part of your portfolio, a Property Investment Accountant can help you understand how the overseas rental income, expenses and foreign tax interact with your Australian tax obligations.
Foreign employment income can also create reporting issues.
For example, an Australian tax resident may work remotely for an overseas employer or spend part of the year working outside Australia.
The tax outcome depends heavily on the individual’s residency, where the employment is performed, the source of the income and whether tax was paid overseas.
The ATO has specific rules covering foreign and worldwide income, so it is important not to assume that foreign salary is automatically exempt from Australian tax simply because tax has already been withheld overseas.
Good records can make the tax return process significantly easier.
If you have foreign income, keep documents such as:
Foreign amounts generally need to be converted into Australian dollars when completing the Australian tax return. The ATO provides guidance on translating foreign income and expenses into Australian currency.
Keeping the original foreign documents is also useful if the ATO later asks you to substantiate the income or tax claimed.
Not always.
The rules can depend on the nature of the foreign income and how the foreign tax was imposed. Certain situations involving attributed foreign income, trusts, controlled foreign companies and other structures have additional requirements.
This is why a foreign tax receipt by itself does not necessarily prove that the amount can be claimed.
The ATO’s 2026 guidance contains specific rules about which foreign taxes count toward the offset and how the calculation is performed.
Foreign income tax issues can become complicated quickly. Some common mistakes include:
The best approach is to deal with foreign income before lodging your Australian tax return.
Start by identifying every source of overseas income and determining your Australian tax residency status. Then calculate the Australian-dollar value of the income, identify the foreign tax actually paid and check whether that tax qualifies for relief.
If you are an Australian expat with several overseas income sources, getting professional advice can also help you identify relevant expat tax deductions and avoid reporting errors.
It is also worth keeping your foreign tax documents throughout the year rather than trying to reconstruct everything when tax time arrives.
Professional assistance can be particularly useful when you have multiple countries, foreign property, investments, business income or changing residency circumstances.
An experienced Expat Tax Accountant can review your Australian and overseas income, consider your residency position and help determine whether the foreign tax you paid is eligible for an offset.
For Australians returning from overseas or preparing their first Australian return after living abroad, understanding the expat tax return guide can also help you gather the right information before lodging.
If you are comparing professional services, factors such as experience with international tax matters, the complexity of your situation and the cost to hire tax accountant can all be considered before choosing an adviser.
For taxpayers with straightforward employment income, the process may be relatively simple. More complicated situations involving overseas property, investments, trusts or business interests generally require closer review.
Foreign income does not necessarily mean you have to bear the full burden of tax in two countries. Australia provides relief mechanisms for eligible taxpayers who have already paid foreign tax on income that is also taxed in Australia.
However, the rules are more detailed than simply deducting overseas tax from your Australian tax bill. Your residency, type of income, foreign tax paid and FITO limit can all affect the final result.
If you regularly earn income overseas, own foreign investments or have recently moved between Australia and another country, getting your international tax position reviewed before lodging can help you avoid costly mistakes.
Working with an experienced accountant in perth can help you understand your Australian reporting obligations and make sure your foreign income is reported correctly.
For taxpayers with straightforward employment income, the process may be relatively simple. However, situations involving overseas property, investments, foreign employment or changing residency can require a more detailed review.
A Personal Tax Accountant can help you assess your individual circumstances, understand applicable tax offsets and prepare your Australian tax return correctly when overseas income forms part of your overall taxable income.
