War Revenue Act of 1917


The United States War Revenue Act of 1917 greatly increased federal income tax rates while simultaneously lowering exemptions.
The 2% bracket had previously applied to income below $20,000. That amount was lowered to $2,000. The top bracket was raised from 15% to 67%.
The act was applicable to incomes for 1917.

War Income Tax for Individuals

In addition to the Normal Tax and an Additional Tax levied against the net income of individuals in the Revenue Act of 1916 a
"like normal" tax and a "like additional" tax were levied against the net income of individuals as shown in the following table.
by CPI: