Elizabeth Warren’s wealth tax proposal is constitutional, experts say — and necessary – Los Angeles Times

In any event, the court rejected Pollock only a few years later, by upholding an estate tax and a gift tax — that is, a tax on net worth. After the 16th Amendment, which declared an income tax constitutional, was ratified in 1913 as a response to Pollock, discussions of the constitutionality of taxes other than the head tax dropped off the Supreme Court docket.