Legal History Commons^™

Brief Of Amicus Curiae Tax Professors In Support Of Respondent In Moore V. United States, Donald B. Tobin, Ellen P. Aprill

Faculty Scholarship

Petitioners in Moore v. United States have argued to the Supreme Court that the word “incomes” in the Sixteenth Amendment authorizes only the taxation of “realized” income. Thus, they assert, a repatriation tax (referred to as MRT) in the Tax Cuts and Jobs Act is invalid because it taxes unrealized gains. While other briefs in the case explain that, as properly understood, the tax at issue taxes only realized gains, this brief counters the petitioners’ Sixteenth Amendment argument. It explains that economists, accountants, and lawyers in the early twentieth century all defined income in broad terms, embracing the definition of …