The fiscal imbalance in Australia is the disparity between the revenue generation ability of the three levels of governments in Australia relative to their spending obligations; but in Australia the term is commonly used to refer more specifically to the vertical fiscal imbalance, the discrepancy between the federal government's extensive capacity to raise revenue and the responsibility of the States to provide most public services, such as physical infrastructure, health care, education etc., despite having only limited capacity to raise their own revenue. In Australia, vertical fiscal imbalance is addressed by the transfer of funds as grants from the federal government to the State and territory.
Vertical fiscal imbalance in Australia is largely the product of the Commonwealth's takeover of income taxes in 1942, during World War II, and rulings of the High Court of Australia that made various state taxes unconstitutional under the Australian Constitution, in particular section 90 and section 109.
Although the Australian Constitution allows both States and the Commonwealth to raise revenue, subsequent constitutional interpretation and political developments have limited state taxing powers and led to a vertical fiscal imbalance. Vertical fiscal imbalance means that the revenue-raising abilities of the governments do not coincide with their spending responsibilities. As Section 51 and other provisions of the constitution (such as section 52 and section 90) prescribe only limited legislative powers to the Commonwealth, Australian states have considerable obligations. For example, primarily, Australian states fund schools and hospitals. The result of the limitations on state taxing power is that the Commonwealth collects the money through taxes, and distributes that money to states. The power to distribute funds to states, on conditions, is contained in Section 96 of the Australian Constitution. As a result, the sphere of Commonwealth power has expanded through dictating policy through conditional grants. This limits the autonomy and power of the states in controlling policy.