Supreme Court Considers Constitutional Limitations on Federal Taxing Power

Published on December 5, 2023

A retired Washington state couple urged the Supreme Court on Dec. 5 to strike down a 2017 tax on “unrealized” income from overseas investments, a move some say could jeopardize current tax code provisions and handcuff Congress. Legal observers are watching the case, Moore v. United States (court file 22-800), because the court could use it to strike down the Mandatory Repatriation Tax (MRT), also known as the Section 965 transition tax, which was part of the Tax Cuts and Jobs Act approved by the Republican-controlled Congress in 2017 and signed into law by then-President Donald Trump. Conservative constitutionalists say if the Supreme Court finds that the MRT violates the 16th Amendment to the Constitution, which allowed an income tax without having to determine it based on population, such a legal precedent could prevent Congress from enacting legislation to tax wealth....