General Motors Corp. v. Tracy

Background

General Motors, a large industrial buyer, challenged Ohio’s treatment of natural gas sales. Ohio long exempted sales by regulated local gas utilities (LDCs) from state and local sales and use taxes but applied the tax to purchases from other sellers, including out-of-state marketers. During the period at issue, GM bought most of its Ohio gas from out-of-state marketers and was taxed on those purchases. The Ohio Supreme Court held marketers were not covered by the utility exemption and upheld the tax, and GM appealed to the U.S. Supreme Court arguing violations of the Commerce Clause and the Equal Protection Clause.

Reasoning

The Court first held GM had standing because it was directly liable for the tax. The key question was whether the tax exemption unlawfully favored in-state interests over interstate commerce. The Court found that regulated local utilities sell a different, bundled product — gas plus local service obligations and consumer protections — mainly to small, captive customers. Independent marketers sell unbundled gas into a competitive market for large users. Because the two sellers serve different markets and are not similarly situated, the Court concluded the tax differential did not amount to unconstitutional discrimination under the Commerce Clause and that the distinction satisfied the more lenient rational-basis standard for equal protection.

Real world impact

The ruling lets Ohio continue a long-standing exemption for regulated local utilities and allows states to treat regulated utility sales differently from marketer sales. Large industrial buyers who contract with out-of-state marketers may continue to face Ohio use taxes on those purchases and could pay higher costs. The Court emphasized that Congress, not the judiciary, is better suited to weigh national regulatory changes if wider market adjustment is needed.

Dissents or concurrances

Justice Scalia concurred but reiterated skepticism about the Court’s “negative” Commerce Clause doctrine; Justice Stevens dissented from the judgment, arguing that speculative economic effects should not justify upholding a tax that burdens interstate commerce.