Mobil Oil Corp. v. Commissioner of Taxes of Vt.

1980-03-19

Headline: State power to tax foreign-source corporate dividends upheld, allowing Vermont to apportion and tax a New York oil company's share of dividends from foreign subsidiaries, expanding state reach over multinational income.

Holding: The Court held that Vermont is not constitutionally precluded from including and apportioning a proportionate share of a New York oil company's foreign-source dividend income for state income tax purposes.

Real World Impact:

Allows states to apportion and tax a share of multinationals' foreign dividend income.
Makes it harder for corporations to avoid state income tax on foreign earnings.
Shifts disputes about fairness of apportionment to state tax records and courts.

Topics: state corporate taxation, taxes on foreign dividends, multinational companies, interstate commerce

Summary

Background

A New York–based oil company that does retail and wholesale business in Vermont received large dividends from many subsidiaries and affiliates operating abroad during 1970–1972. Vermont began with the company's federal taxable income, then used a three-factor apportionment formula (sales, payroll, property) to compute the portion taxable in Vermont. Mobil subtracted the foreign dividends as nonapportionable; Vermont re-added them, assessed additional tax, and the Vermont courts split on the proper result.

Reasoning

The core question was whether dividend income from foreign subsidiaries can be apportioned and taxed by a State where the parent does business. The Court said the foreign source or the mere form of payment (dividend) does not automatically bar apportionment if the payor corporations' activities are part of a functionally integrated, unitary business and there is a sufficient connection to the State. The Court also rejected Mobil's claim that the Commerce Clause requires allocating such income only to the State of commercial domicile, noting no present duplicative New York tax and no constitutional rule favoring allocation over apportionment.

Real world impact

States may tax a proportionate share of multinational corporations' foreign dividend income when that income reflects a unitary enterprise doing business in the State. The ruling is limited: the Court did not prescribe exact formulas for a fair apportionment, so challenges about the fairness of particular calculations remain for record-based review.

Dissents or concurrances

Justice Stevens dissented, arguing the record shows Vermont's method overstated Mobil's in‑state income and that Mobil had not waived its challenge to the accuracy of apportionment; he would have reversed.