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[?].
... them, 74.5% are married couples living together, 8.3% have a female householder with no husband present, and 13.1% are non-families. 11.0% of all households are made up ...