Lots of talk about billionaires not paying taxes
No one knows how the journalists at ProPublica got hold of tax records for several years for some of the richest Americans.
Bezos, Musk, Soros, Buffet, etc., paid what appear to be small dollar figures in income tax for certain years (some years $0, some years around $70k were the most quoted figures, dating back to the year 2011). This is because they don't generally make income (particularly when you're talking about each year). Instead, they hold assets. Their largest asset is generally company stock, which is only taxed if it is sold (capital gains). Some years, they need to raise cash and so they take loans against their assets. This is not taxable.