The U.S. income tax system has changed quite a bit over the years—and that includes more than the due date for Form 1040.

While instituting the largest tariff increase in modern history, Trump claimed that the income tax was passed for “reasons unknown to mankind” and caused the Great Depression.Here’s the real history.

L ove it or hate it, it’s that time of year again when Americans face their annual reckoning with Uncle Sam: April 15 or, ...

A 3% tax was imposed on all annual incomes over $800. The purpose was to finance the Civil War. Generally, federal income tax is due on April 15 of every year. The day shifts to the following ...

1913 and a prior 10-year period in the 1860s when a tax on income helped pay for expenses related to the Civil War. While Americans have grown accustomed to income taxes, particularly at the ...

President Herbert Hoover signed the Smoot-Hawley Tariff Act in 1930, even as many economists warned that the levies would ...

If you’re a political nerd like me, you may have observed then-candidate and now President Donald J. Trump’s pledge to eliminate taxes on tips.

This was not the first income tax effort, however. For a few short years during and after the Civil War, the United States imposed its first tax on income to help fund the massive costs of the war.