The report by the Treasury on International Comparison of Australia's Taxes contains a bunch of graphs that put Australia's taxation policies against OECD countries. There is a tonne of data, recommendations and comparisons in this report. An interesting graph shows Australia's tax break down on income and payroll tax.

Components of direct taxation in respect of individuals and payrolls

Source: International Comparison of Australia's Taxes

The graph shows the taxation revenue as a proportion of GDP. Australia's income taxation is high if compared directly to other nations, but Australia does not break out social security as a separate tax.

Cam Riley: South Sea Republic. Freedom, liberty, equity and an Australian Republic.