Moorman Manufacturing Co. v. Bair Case Brief

Supreme Court of the United States1978Docket #215040
57 L. Ed. 2d 197 98 S. Ct. 2340 437 U.S. 267 1978 U.S. LEXIS 111 Constitutional Law Tax

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Case Brief Summary & Legal Analysis

4 min read

tl;dr: The Supreme Court upheld Iowa’s single-factor sales formula for apportioning corporate income tax, finding it did not violate the Due Process or Commerce Clauses, even though it differed from the three-factor formula used by most states and created a risk of duplicative taxation.

Legal Significance: This case establishes that states have wide latitude in choosing income apportionment formulas. The Court will not mandate national uniformity under the Commerce Clause, deferring that power to Congress, and will only invalidate a formula on Due Process grounds if it produces a grossly distorted result.

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Case Facts & Court Holding

Key Facts & Case Background

Moorman Manufacturing Co., an Illinois corporation, manufactured animal feeds in Illinois and sold them in Iowa, where it maintained salesmen and warehouses. Iowa taxed the income of interstate corporations using a single-factor apportionment formula based solely on the percentage of a company’s total sales that occurred in Iowa. Moorman, whose Iowa sales were about 20% of its total, argued this formula was unconstitutional. Illinois and most other states used a three-factor formula, which equally weighed property, payroll, and sales. Moorman contended that Iowa’s formula taxed income generated by its manufacturing activities in Illinois, violating the Due Process Clause. It also argued that the discrepancy between Iowa’s formula and the prevalent three-factor formula resulted in duplicative taxation and discriminated against interstate commerce, violating the Commerce Clause. Moorman did not, however, provide a separate accounting analysis to prove the precise amount of income generated by its out-of-state activities.

Court Holding & Legal Precedent

Issue: Does a state’s use of a single-factor sales formula to apportion the net income of an interstate corporation for tax purposes violate the Due Process Clause or the Commerce Clause of the U.S. Constitution when most other states use a three-factor formula?

The judgment of the Iowa Supreme Court is affirmed. The Court held Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Lorem ipsum dolor sit amet, consectetur adipiscing eli

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IRAC (Issue, Rule, Analysis, Conclusion) is the structure professors expect in exam answers. Each LSD.Law brief states the issue, the governing rule with citations, the court's application of that rule, and the conclusion - the same reasoning pattern you will use on exams and in practice.

Legal Issue

Does a state’s use of a single-factor sales formula to apportion the net income of an interstate corporation for tax purposes violate the Due Process Clause or the Commerce Clause of the U.S. Constitution when most other states use a three-factor formula?

Conclusion

This decision solidifies the principle of judicial deference to state tax apportionment Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in

Legal Rule

A state's income apportionment formula is presumptively valid and will not be Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Lorem ipsum dolor sit amet, conse

Legal Analysis

The Court's analysis proceeded in two parts. First, addressing the Due Process Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exe

Flash-to-Full Case Opinions

Flash Summary

  • A state’s single-factor sales formula for apportioning an interstate company’s income
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatu

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