Top rate today
45% In 2022-23 the top marginal rate of 45% applies to income above $180,001.
above $180,001
Peak top rate
75% The highest top marginal rate in the dataset, reached in 1950-51.
1950-51
Tax-free threshold
$18,200 Income up to $18,200 is taxed at 0% in 2022-23.
2022-23
Years covered
73 One ATO rate schedule per financial year, from post-war pounds to today.
1950-51 – 2022-23
The top rate over time
Hover any year for the exact top rate and the income above which it applied. The shaded band marks the pre-decimal era (incomes in pounds); rates are directly comparable across the whole period.
Explore the brackets, year by year
Each step is a tax bracket. Hover a step for its income range, marginal rate and the original ATO wording.
What would you have paid?
Income tax computed from the ATO marginal schedule for the chosen year. Excludes offsets/rebates (e.g. LITO) and surcharges; Medicare levy shown at its headline rate without low-income reductions. A guide, not tax advice.
Levies & repayments
The Medicare levy was introduced in 1983-84; the higher education repayment scheme (HECS, later HELP) began in 1988-89. Hover for the rate and the year each was introduced.
Who pays what
Marginal rate by income for residents, non-residents and working-holiday makers. Non-residents pay from the first dollar; residents get a tax-free threshold.