Proportional taxes are those whose rates are constant regardless of the quantity of taxable items. If, for example, the tax rate is ten percent, and this rate applies on all income regardless of its size, then the tax is proportional. Progressive taxes are those whose rates increase with an increase in the amount of the taxable item. Progressive taxes are usually applied on the basis of income stratas. For example, the rate may be ten percent for the first one thousand units of income, twelve percent for the second one thousand, and fifteen percent for the third one thousand.1 Progressive taxes are supported by many people nowadays, who argue that this kind of tax is more just because it distributes the burden of government expenditures according to the ability of the taxpayers. The following arguments are usually forwarded in support of progressive taxes:

1. Wealthy persons benefit from the economic law of increasing returns, so that the more they accumulate, the more they can obtain higher returns and more accumulation.

This ability to accumulate and to earn increases more than proportionally, so the tax applied on such persons must also be more than proportional.

2. Progressive taxes are the most accessible means to eliminate great differences in income and wealth in a society. Whenever we are confronted with a situation of badly distributed wealth, progressive taxes rectify the situation and shrink the economic gap between rich and poor.