TAXATION REVENUE AS A PROPORTION OF GROSS DOMESTIC PRODUCT (GDP)
The current price estimate of GDP is used to calculate the ratios. This is obtained by reflating the average chain volume estimate, derived from the three independent approaches, by the implicit price deflator derived from the expenditure-based estimates. GDP is as published in Table 32, Expenditure on GDP, Current Prices in the December quarter 2012 issue of Australian National Accounts: National Income, Expenditure and Product (cat. no. 5206.0) pdf version.
Total taxation revenue as a proportion of GDP increased to 26% in 2011–12. As a percentage of GDP, taxation revenue for the Commonwealth Government was 22%, State Government 4% and Local Government 1%. The percentages were unchanged from 2010–11 for all levels government except for Commonwealth Government which had a 1% increase.