Income tax is a direct tax which is levied on the income of private individuals. Various income tax systems exist. Those range from a flat tax to an extensive progressive tax[?] system.
Taxes levied on the income of companies is called corporate tax[?].
... age is 39 years. For every 100 females there are 113.3 males. For every 100 females age 18 and over, there are 108.7 males.
The median income for a household in the ...