Warren Buffett said in his annual letter to shareholders of Berkshire Hathaway in late February that the company paid 1 1/2% of all corporate income taxes collected by the US government in 2019. It paid $3.6 billion. Total US corporate income tax collections over the same period were $243 billion . . . . US corporations reported total profits in 2019 for book purposes of $12.5 trillion, according to Statista.