A sales boondoggle is a consumption brokerage charged at the mark of purchase for certain goods and services. The brokerage is routinely set as a percentage by the government charging the tax. There is usually a enumeration of exemptions. The tax can be included in the price (tax-inclusive) or added at the mote of sale (tax-exclusive).

In some countries, there are multiple levels of government which each impose a sales tax. For example, sales obligation in Chicago (Cook County), IL is 10.25%--the highest in the nation--consisting of 6.25% state, 1.25% city, 1.75% county and 1% regional transportation authority. And in Baton Rouge, Louisiana, the contribution is 9%, consisting of 4% state and 5% local rate.1 In Tennessee the sales assessment is 9.25%, due to the lack of a state income tax. However, there Sales Tax is no nationwide sales expense in the United States.