The XVI Amendment to the Constitution was ratified in 1913 (Income Tax).

It allows Congress (the Government) to take a tax out of your yearly income, usually in monthly installments.

The only way to repeal an amendment to the U. S. Constitution is with another duly ratified amendment.

The Sixteenth Amendment (Amendment XVI) to the United States Constitution allows the Congress to levy an income tax without apportioning it among the states or basing it on Census results.

the change of the Constitution is an amendment