A single tax rate that applies to everyone obligated to pay the tax. Sales taxes are flat taxes. There have been proposals to substitute a flat tax on income for the current graduated tax, which taxes higher incomes at a higher rate. Proponents argue that the flat tax is fair and simple. Opponents view it as a bonanza for the wealthy.
Examples from the Web for flat tax
Roemer says he released his flat-tax proposal three months ago.
The flat-tax option would allow Americans to “file their taxes on a postcard,” according to the Perry plan.
Rick Perry unveiled the details of his flat-tax plan and overall economic package today in South Carolina.