A double tax agreement (DTA) is a treaty between Australia and another country that determines which country has the right to tax specific types of income, and ensures the same income is not fully taxed in both jurisdictions. Australia has DTAs with more than 40 countries. They override Australia’s domestic tax law in many situations and can significantly affect how foreign income is treated.
Why Double Tax Agreements Exist
Without tax treaties, an Australian resident earning income in another country could face tax in both countries — once by the source country (where the income is earned) and again in Australia (where the person lives). DTAs allocate taxing rights and provide relief mechanisms to prevent this.
The two main mechanisms are:
- Exclusive taxing rights — the DTA gives one country the sole right to tax a type of income (the other country cannot tax it at all)
- Shared taxing rights with credit relief — both countries may tax the income, but the country of residence provides a credit for tax paid in the source country (Australia does this through the Foreign Income Tax Offset)
Countries Australia Has a DTA With
Australia has comprehensive DTAs with (among others):
Major economies: United States, United Kingdom, Canada, Japan, China, Germany, France, Singapore, South Korea, India, New Zealand, Switzerland, Netherlands, Sweden, Norway, Finland, Denmark, Belgium, Austria, Italy, Spain
Other key jurisdictions: Indonesia, Malaysia, Thailand, Philippines, Vietnam, Papua New Guinea, Fiji, Chile, Mexico, Argentina, Czech Republic, Slovakia, Poland, Hungary, Romania, Turkey, South Africa, UAE (limited arrangement)
The exact treaties in force and their provisions vary. The ATO publishes the full list on its website.
What DTAs Cover
Most DTAs address:
| Income type | Typical DTA treatment |
|---|---|
| Employment income | Taxed where the work is performed; resident country credits source tax |
| Business profits | Taxed where the business has a permanent establishment |
| Dividends | Source country may withhold tax (often at a reduced rate); resident country gives credit |
| Interest | Source country may withhold tax (reduced rate); resident country gives credit |
| Royalties | Source country may withhold tax (reduced rate); resident country gives credit |
| Capital gains | Usually taxed in country of residence (some exceptions for real property) |
| Government pensions | Usually taxed only in the source country (the country paying the pension) |
| Private pensions | Taxed in country of residence in most DTAs |
Reduced Withholding Rates
One practical benefit of DTAs is reduced withholding tax rates on dividends, interest, and royalties paid between the two countries. Without a DTA, many countries withhold 30% on dividends paid to foreign investors. With a DTA, the rate is often reduced to 15% or less.
Example: An Australian resident investing in US shares. Without the Australia-US DTA, the US would withhold 30% on dividends. Under the DTA, the rate is reduced to 15% (or 5% for significant corporate shareholders). The Australian investor then claims the FITO for the 15% withheld, reducing their Australian tax on the income.
The Tie-Breaker Rule
If you are a tax resident of both Australia and another treaty country (a dual-resident situation), the DTA’s tie-breaker article determines which country you are a resident of for treaty purposes. Tie-breaker rules typically consider:
- Permanent home (where you have a permanent home available)
- Centre of vital interests (closer personal and economic ties)
- Habitual abode (where you regularly live)
- Nationality
- Mutual agreement between tax authorities
How to Claim DTA Benefits
DTA benefits are not always automatic. In some cases:
- You must provide a Certificate of Residency to the foreign tax authority to claim a reduced withholding rate
- You may need to lodge a foreign tax return and claim a refund of excess withholding
- In Australia, you report the gross foreign income and claim the FITO for tax paid
Frequently Asked Questions
Does Australia have a tax treaty with the USA? Yes. The Australia-US DTA has been in force since 1983 and has been updated. It covers dividends (15% withholding for portfolio investors), interest, royalties, capital gains, and employment income, among others.
Can a DTA eliminate all tax on my foreign income? Rarely entirely, but it prevents full double taxation. The more common outcome is that you pay the higher of the two countries’ effective tax rates on the income, not both rates in full.
What if my country does not have a DTA with Australia? Australia’s domestic Foreign Income Tax Offset still applies — you claim a credit for foreign tax paid, capped at the Australian tax payable on that income. Without a DTA, however, the source country may withhold tax at its full domestic rate.
Do DTAs apply to super? Generally, Australian superannuation fund earnings are taxed under Australian domestic rules. DTAs do not typically affect how super fund earnings are taxed inside the fund. Distributions from foreign pension schemes may be covered by DTA provisions.
This article provides general tax information. International tax treaties are complex legal documents that interact with domestic law in ways that require professional interpretation. For advice tailored to your situation, speak with a registered tax agent with international tax experience. Find one through the Tax Practitioners Board register.