In every country, there are some certain service which the government must provide tothecitizen of a country because of its essential natural;. The service indisputable in life that individual or corporate bodies are not allowed to provide them in even of they do, they may not be allowed to monopolies the supplies on the production. 

Government   does this to ensure that the supply of goods and services are demisted in a society so that the rich and the poor alike any benefit.  

The provisions of such essential goods and services involve a large amount of money and expenditure. ; how does government of  a country exchange amount of money as finance the supply of such essential goods and service totheitizen.

For the economic balance to be maintained in an economy, government must find a way of financing  her  administer  one of his service of income of his type through tax.  This can be this   of personal income tax.