Llinois Central Railroad v. Minnesota

Background

Minnesota requires every railroad that owns or operates lines in the state to pay a five percent tax on gross earnings from operations in Minnesota, in lieu of other taxes. An Illinois railroad that owns no lines in Minnesota but operates 30.15 miles of leased track was assessed tax on net credits from freight-car rentals and borrowings. The railroad’s credits and debits from car exchanges with other lines were apportioned to Minnesota using a formula based on Minnesota revenue freight-car miles compared to system miles, producing a tax bill totaling $26,414.59 for several years.

Reasoning

The Court addressed whether the state’s formula and application violated equal protection, due process, or the rule against improper state taxation of interstate commerce. The Court held that the formula reasonably apportioned earnings to the state and that rough approximation, rather than mathematical exactness, is acceptable for such taxes. The Court found the tax was applied uniformly to railroads operating in Minnesota, did not single out the appellant, and fairly related to property and activity within the state. The Court also rejected objections about double taxation and allowed Minnesota’s recomputation of taxes for past years, noting the statute existed throughout the period. Finally, the Court deferred to the state court’s interpretation that the credits qualified as “gross earnings.”

Real world impact

Railroads that operate in Minnesota can be taxed on apportioned revenues from renting and borrowing freight cars, even if they have little actual track inside the state. Companies with no trackage in Minnesota are not reached by the tax. The decision permits states to rely on practical apportionment formulas and to recalculate past tax liabilities when a statute has long been in force.