Supreme Court to Hear Foreign Earnings Tax Case in December

Supreme Court Justices will hear oral arguments in a pivotal tax case on foreign earnings on Dec. 5, according to the high court’s docket.

Charles and Kathleen Moore have challenged the mandatory repatriation tax, also called the transition tax, enacted in the 2017 tax law, arguing that it’s an unconstitutional charge on unrepatriated foreign earnings from 1987 to 2017. Lawmakers, the Joint Committee on Taxation, and tax professionals have warned that the case, Moore v. US, could upend large parts of the tax code.

The Supreme Court on Thursday set the oral argument date for ...