In the United States v. Wheelock Bros., Inc. case of 1950, the U.S Supreme Court dealt with a dispute over income tax deductions related to business expenses. The Wheelock Brothers, who operated a lumber and millwork company in Minnesota, claimed that certain payments they made were ordinary and necessary business expenses deductible under Section 23(a) of the Internal Revenue Code. These payments were made to settle claims by customers for damages arising from alleged breaches of warranty on products sold by them during World War II due to price regulations set by Emergency Price Control Act (EPCA). However, the IRS disallowed these deductions arguing that such settlements constituted penalties or fines which are not deductible as per law. The court ruled in favor of Wheelock Brothers stating that these payments did not constitute penalties but rather represented compensatory damages paid out because their goods failed to meet contractual standards due to wartime conditions beyond their control. Therefore, they should be treated as ordinary and necessary business expenses eligible for deduction under Section 23(a). This decision clarified how businesses could deduct certain types of losses incurred while settling customer claims from taxable income.

The dissenting opinion in the case of United States v. Wheelock Bros., Inc. argued that the majority's decision to uphold a tax assessment against Wheelock Brothers was incorrect and inconsistent with previous court rulings on similar cases. The dissenting justices believed that the company should not be held liable for taxes on income derived from government contracts during World War II, as they were exempt under Section 213(b)(6) of Revenue Act 1942 which provides an exemption for "income resulting directly or indirectly from any contract with or sale to" U.S Government during war period. They contended that this provision was intended by Congress to encourage companies like Wheelock Brothers to contribute their resources towards the war effort without fear of being penalized through taxation later on. Furthermore, they disagreed with majority’s interpretation of “resulting” and argued it should cover all profits made by corporations due its business relationship with government during wartime irrespective if these profits are direct result of those contracts or not.