Legal history of income tax in the United States Legal history of income tax in the United States Taxation of income in the United States has been practised since colonial times. Some southern states imposed their own taxes on income from property, both before and after Independence. The Constitution empowered the federal government to raise taxes at a uniform rate throughout the nation, and required that "direct taxes" be imposed only in proportion to the Census population of each state. Federal income tax was first introduced under the Revenue Act of 1861 to help pay for the Civil War. It was renewed in later years and reformed in 1894
Income tax in the United States of which is also to be withheld from wages. Withholding of income and Social Security taxes are often referred to as payroll tax. Individuals (with income above a minimum level), corporations, partnerships, estates, and trusts must file annual reports, called tax returns, with federal and appropriate state tax authorities. These returns vary greatly in complexity level depending on the type of filer and complexity of their affairs. On the return, the taxpayer reports income and deductions, calculates the amount of tax owed, reports payments and credits, and calculates the balance due. Federal individual, estate, and trust income tax returns are