Australia has four income tax rates, shown below (effective 1st July 2005):
Anyone who isn’t resident in Australia for a whole financial year receives a pro rata portion of the tax-free allowance ($6,000 per year); for example, if you’re resident in Australia for half the tax year, your tax-free allowance is $3,000. Special tax rules apply to those under the age of 18, whose income is generally taxed at a higher rate. There are no special rates for spouses in Australia, where the same tax rates apply to married and single individuals.
| Taxable Income ($) | Tax Rate (%) |
| Under 6,000 | 0 |
| 6,001 – 21,600 | 17 |
| 21,601 – 63,000 | 30 |
| 63,001 – 80,000 | 42 |
| Over 80,000 | 47 |
There’s no tax-free allowance for non-residents with business and trading income in Australia, who are taxed as shown below (note that non-residents should have a tax file number and quote it to their employer, or they’re taxed at the maximum rate of 47 per cent).
| Taxable Income ($) | Tax Rate (%) |
| Up to 21,600 | 29 |
| 21,601 – 63,000 | 30 |
| 63,001 – 80,000 | 42 |
| Over 80,000 | 47 |
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