Why is the individual income tax a progressive tax

I hope this helps you out

Explanation:A progressive tax is one that charges a higher tax rate for people who earn a higher income. The rationale is that people with a lower income will usually spend a greater percentage of their income to maintain their standard of living. ... The income tax system in the United States is considered a progressive system

i think it should be slowed colonial western march

in all honesty, it really hasn't. except that hitler killed himself.