In Australia, the sales tax rate is a tax charged to consumers based on the purchase price of certain goods and services. The benchmark we use for the sales tax rate refers to the highest rate. Revenues from the Sales Tax Rate are an important source of income for the government of Australia. This page provides - Australia Sales Tax Rate - actual values, historical data, forecast, chart, statistics, economic calendar and news. Australia Sales Tax Rate - GST - actual data, historical chart and calendar of releases - was last updated on March of 2019.