No. Unlike the US, Canada, or even the UK's devolved system, Australian income tax is set entirely at the federal level — there is no separate Western Australia state income tax. Every Australian resident pays the exact same income tax brackets and Medicare Levy regardless of which state or territory they live in. What differs by state is payroll tax (which employers pay, not employees directly), stamp duty, and land tax — none of which affect your personal income tax return.
Western Australia's economy is heavily driven by mining, particularly iron ore, natural gas, and other resources, which has historically translated into some of the highest average wages in the country, particularly in the resources and engineering sectors. Perth, the state capital, is geographically isolated from the eastern states — closer to parts of Southeast Asia than to Sydney — which has shaped a distinct regional economy and labour market. Income tax remains entirely federal, identical to the rest of Australia, though WA's high-wage resources sector means many residents find themselves in higher tax brackets than the national average purely due to the state's earning potential.
| Taxable income | Tax rate |
|---|---|
| $0 – $18,200 | Nil |
| $18,201 – $45,000 | 16c for each $1 over $18,200 |
| $45,001 – $135,000 | $4,288 + 30c for each $1 over $45,000 |
| $135,001 – $190,000 | $31,288 + 37c for each $1 over $135,000 |
| Over $190,000 | $51,638 + 45c for each $1 over $190,000 |
Tax on $80,000: $4,288 + 30% × ($80,000 − $45,000) = $14,788. Medicare Levy: $80,000 × 2% = $1,600. Take-home: approximately $63,612 per year — identical to the same salary anywhere else in Australia, since income tax doesn't vary by state.