Progressive tax

Progressive taxation, also known as variable taxation is a tax system where resident's in a country / area are made to pay a certain amount of tax which is based on their own financial income and living situations rather than taxing everyone the same amount. For example, a person with low income living in a small one bedroom flat would pay less in tax than a billionaire living in a mansion, spending his day eating giant watermelons.

This type of taxation is popular with the left wing. It is this policy which sparked fear in rich American Republicans that Barack Obama is actually a socialist and may turn into the new Stalin. Apparently wanting to help people rather than now makes you a dictator.

The opposite of progressive taxation is flat taxation.

Robin Hood
"We rob from the rich and give to the poor." The earliest example of a financial liberal.