In the case of Wisconsin Electric Power Co. v. United States, 1948, the Supreme Court was tasked with determining whether or not a power company could deduct from its federal income tax payments made to customers as part of a promotional program designed to encourage electricity use. The court ruled in favor of the United States, stating that these payments were capital expenditures and therefore not deductible business expenses under Section 23(a)(1)(A) of the Internal Revenue Code. The court reasoned that while these payments might have been necessary for generating increased revenue in future years, they represented an investment in facilities which would yield returns over time rather than ordinary and necessary business expenses incurred during one taxable year.

In the dissenting opinion for Wisconsin Electric Power Co. v. United States, Justice Jackson disagreed with the majority's interpretation of the tax code and its application to this case. He argued that Congress intended for utility companies to be taxed on their net income, not gross revenue, which would include money set aside for depreciation expenses. According to him, allowing such a taxation method would result in double taxation as these funds are already taxed when they're eventually used for repairs or replacements - an outcome he believed was against Congressional intent. Furthermore, he contended that if Congress had wanted utilities' reserve funds included in taxable income it could have explicitly stated so in legislation but did not do so; therefore implying that it should not be considered taxable income under current law.