The main fuel tax in Australia is an excise tax, to which is added a Goods and Services Tax ("GST"). Both taxes are levied by the federal government. In Australia, like Canada, the GST (in Australia's case of 10%) is applied on top of the fuel excise tax. In some cases, businesses may be entitled to exemptions or rebates for fuel excise tax, including tax credits and certain excise-free fuel sources. The tax collected is partly used to fund national road infrastructure projects and repair roads, but most of it (approximately 75%) goes into general revenue.