Fiscal capacity is the ability of the state to extract revenues to provide public goods and carry out other functions of the state, given an administrative, fiscal accounting structure.[1] In economics and political science, fiscal capacity may be referred to as tax capacity, extractive capacity or the power to tax, as taxes are a main source of public revenues. Nonetheless, though tax revenue is essential to fiscal capacity, taxes may not be the government's only source of revenue. Other sources of revenue include foreign aid and natural resources.[2][3]
In addition to the amount of public revenue the state extracts, fiscal capacity is the state's investment in "state structures—including monitoring, administration, and compliance through such things as training tax inspectors and running the revenue service efficiently".[2] When investment in these administrative or bureaucratic fiscal structures are specific to the state's power to extract resources, fiscal capacity is moreover related to a larger concept of state capacity. Finally, given that public goods funded by fiscal capacity include infrastructure development, health, education, military and social insurance, a state's fiscal capacity is essential to its economic growth, development, and state-building.[4][5]