The mainstay of federal business taxation, the US corporate income tax, is riddled with distortions and inequities. As a means of taxing the richest Americans--a popular goal--the corporate income tax is a hopeless failure. Many companies pay no corporate tax, and among those that do, the burden is highly uneven. Meanwhile, the richest Americans command income from numerous sources besides corporate dividends. The distortions and inequities are amazing. Under pressure from business lobbies, Congress legislates deductions and exemptions that twist the corporate tax base far from any plausible...