16th Amendment

The Sixteenth Amendment (Amendment XVI) to the United States Constitution allows the Congress to levy anincome tax without apportioning it among the states or basing it on Census results. This amendment exempted income taxes from the constitutional requirements regarding direct taxes, after income taxes on rents, dividends, and interest were ruled to be direct taxes in Pollock v. Farmers' Loan & Trust Co. (1895). It was ratified on February 3, 1913.