Provides basic information on the filing of tax returns, with the opportunity to submit questions to the site's sponsors.

A history of the national gasoline tax, including yearly revenues since it began.

Center on Budget and Policy Priorities article arguing that the percentage of income that typical middle-class families pay in federal taxes is often overstated.

The Internal Revenue Service for more than a year has let many tax delinquents go without paying tax bills that total billions of dollars.

Essay discussing the concepts of progressivity in taxation, the role of taxation in regulating the economy, and explaining why sales taxes are considered to be regressive.

Suggesting replacing most or all federal taxes with a tax on electronic transfers of funds.

Quiz to determine your stance on tax policy.

Book available from the Urban Institute.

Study found that most states take a far greater share of income in taxes from middle- and low-income families than from the wealthy.