A A discretionary payment, usually a percentage, levied on income, property value, sales price, etc - for the support of a government.
B A charge usually of money imposed by authority on persons or property for public purposes.
C An amount of money levied by a government on its citizens and used to run the government, the country, a state, a county, or a municipality.
D An amount of money paid to the government, which is based on your income or of the cost of goods or services you have bought.
E A sum of money demanded by a government for its support or for specific facilities or services, levied upon incomes, property, sales etc.