Join Congress as they assess their economic abilities for spending—and as they discover their limits. High schoolers use an educational resource to explore Congress's economic powers and learn to apply these concepts to their everyday...

This resource provides a detailed overview of the 16th amendment to the U.S. Constitution. Content includes a focus on income tax, the history and purpose of the amendment, and the incomes subject to taxation.

This resource describes the different types of income that are taxable by the government based on numerous court cases in which definitions of the 16th amendment Corporation Tax Act of 1909 were applied.

Check out this interactive timeline documenting the history of federal taxation in the United States.

How did this day come to be the national day for taxes being due? What is it for? To find out the answers to these and other questions, visit this site from the Library of Congress.