A tax that takes a higher percentage of low incomes than high ones. Sales taxes, especially on food, clothing, medicine, and other basic necessities are widely cited as examples of regressive taxes. (Compare progressive tax.)
Regressive Tax
A tax that takes a larger percentage from the income of low-income people than the income of high-income people.
Investopedia Commentary
Some examples include gas tax and cigarette tax.
See also: Flat Tax, Income Tax, Progressive Tax
regressive tax