The Supreme Court on Thursday upheld a provision of a 2017 corporate tax reform law, known as the mandatory repatriation tax, that taxes the undistributed profits from U.S. shares of foreign corporations in which Americans own a majority. An American couple had challenged the constitutionality of the one-time tax, which was imposed on earnings after 1986 and would increase the couple’s tax bill by approximately $15,000. But by a vote of 7-2, the court ruled that the tax does not violate the Constitution.
Justice Brett Kavanaugh wrote for the majority. Stressing that the court’s ruling was a narrow one, Kavanaugh noted that a contrary decision “could render vast swaths of the Internal Revenue Code unconstitutional.”
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In its 24-page ruling, the majority did not resolve the question whether – as the Moores contended and the government disputed – the Constitution requires income to be realized before it can be taxed. Instead, Kavanaugh explained, the real “precise and narrow question” before the justices was whether Congress can attribute income that an entity has realized but not distributed to its shareholders or partners and then tax that income. For Kavanaugh and the four justices who joined his opinion – Chief Justice John Roberts and Justices Sonia Sotomayor, Elena Kagan, and Ketanji Brown Jackson – the answer was clear from the Supreme Court’s “longstanding precedents”: yes, although they stressed that their ruling was a narrow one that “applies when Congress treats the entity as a pass-through.”
Moreover, Kavanaugh continued, “in an effort to contain the blast radius of their legal theory,” the Moores have conceded that other taxes – such as partnership taxes, taxes on S-corporations, and taxes under subpart F of the Internal Revenue Code, which applies to American-controlled foreign corporations – are constitutional. Because the Moores “cannot meaningfully distinguish” the mandatory repatriation tax from those other taxes, Kavanaugh reasoned, their argument, “taken to its logical conclusion,” would mean that other parts of the code are also unconstitutional – which could in turn cost the federal government “trillions in lost tax revenue.”
“The logical implications of the Moores’ theory would therefore require Congress to either drastically cut critical national programs or significantly increase taxes on the remaining sources available to it — including, of course, on ordinary Americans.” “The Constitution,” Kavanaugh concluded, “does not require that fiscal calamity.”
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