Tesoro Corporation v. Alaska Dept. of Revenue

by
Tesoro Corporation challenged its income taxes assessed for 1994 through 1998. The state Department of Revenue (DOR) calculated Tesoro’s Alaska income by applying a three-factor apportionment formula to Tesoro’s worldwide income, including that of its non-Alaskan subsidiaries. An administrative law judge ruled Tesoro was a unitary business that could be subject to formula apportionment, and that DOR could permissibly assess penalties against Tesoro. Tesoro appealed to the superior court, which affirmed. On appeal to the Supreme Court, Tesoro argued that only the income of its Alaska-based subsidiaries should have been subject to taxation in Alaska because Alaska’s tax scheme violates the Due Process and Interstate Commerce Clauses of the United States Constitution. Because Tesoro’s business was unitary, the Supreme Court rejected Tesoro’s challenge to the constitutionality of taxing all of its income under formula apportionment. Because Tesoro lacked standing to challenge the formula’s constitutionality, the Court did not reach the internal consistency issue Tesoro raised. Furthermore, the Court concluded that DOR permissibly imposed penalties on Tesoro. Therefore the Court affirmed the superior court decision that affirmed the administrative law judge’s decision and order. View "Tesoro Corporation v. Alaska Dept. of Revenue" on Justia Law