In 2018, Warren Buffett and Bill Gates gave 3%–4% of their wealth to charities.

But when it comes to philanthropy, they are outliers.

The norm among America's billionaires seems closer to 0.3% (= 1/20 of what they would pay with a 6% annual wealth tax) pic.twitter.com/2jmkvDc9g9

— Gabriel Zucman (@gabriel_zucman) November 25, 2019

What's the true tax rate of the richest person in the world?

Based on publicly available info for 2018:
– Amazon fed corporate tax: ~0%
– Amazon local business taxes: ~8%
– Bezos realized capital gains: ~1%
– Bezos wages, dividends: 0%

Total: 9%

Average tax rate in the US: 28%

— Gabriel Zucman (@gabriel_zucman) November 18, 2019