Afederal income tax exists to provide revenue for
schools and other services.
state governments.
local governments.
the us government

The US government.

Explanation:

A federal income tax exists to provide revenue for a country's grow and sustentation, it is taxed on all American citizens. The income from federal tax is credited to the United States government and is applied in many things such as infrastructure; pensions; social welfare; education; security; health or public transportation.

Some states and local governments have their own income tax system that is applied on citizens that are living in their territory, additionally to the federal income tax.

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