The income tax was established in 1913 with the ratification of the single sentence of the 16th amendment. Tax rules and regulations have undergone many revisions and changes in the 110 years since then, including the 2017 Tax Cut and Jobs Act. One provision of that act, concerning multinational corporations repatriating income, is being challenged in the case Moore v. United States. Oral arguments in that case, which could have far-reaching implications for the tax system, will be heard by ...
