Couples in the highest income tax rate bracket paid a rate of 37% on earnings higher than $628,300, the report said.
In 2007, Bezos "did not pay a penny in federal income taxes," and he also avoided any federal income tax liability in 2011, the article said.
Musk, who had an actual taxable income of $1.52 billion during the five-year period, paid no federal income taxes in 2018, according to ProPublica.
Icahn, another investor, paid no federal income tax in 2016 and 2017, years in which his total adjusted gross income was $544 million, the article said.
"There's a reason it's called income tax," Icahn was quoted as saying in the article.
ProPublica, — Jeff Bezos, Elon Musk, Warren Buffett, Carl Icahn, Michael Bloomberg, George Soros —, Buffett, Berkshire Hathaway, Bezos, Musk, Soros, Icahn
Berkshire, Amazon, ProPublica, Bloomberg, New York City