Amazon essentially makes very little profit and what it does make gets deferred or tax credited away. . . Bezos is considered the richest man in the world due to his inflated Amazon stock holdings. He pays income taxes on his income as CEO and on the value of the stock he receives, when he converts it to cash.
Bezos creates new loss making startups to cover the massive cash profits previous startups begin to generate.
Amazon is a horizontally integrated perpetual tax avoidance scheme.