Earlier this month, the New Mexico Administrative Hearings Office issued an opinion that addressed the questions on the minds of many state tax professionals in the wake of federal tax reform: under what circumstances can a state constitutionally impose tax on a domestic company’s income from foreign subsidiaries, including Subpart F income, and when is factor representation required? These issues have recently received renewed attention in the state tax world due to the new federal laws providing additions to income for foreign earnings deemed repatriated under Internal Revenue Code (IRC) section 965 and for global intangible low-taxed income (GILTI). Since many state income taxes are based on federal taxable income, inclusion of these new categories of income at the federal level can potentially result in inclusion of this same income at the state level, triggering significant constitutional issues. In Matter of General Electric Company & Subsidiaries,...

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