In the case of New York Life Insurance Company v. Edwards, Collector in 1925, the U.S. Supreme Court ruled that a life insurance company could deduct payments made to policyholders from its taxable income. The court held that these payments were not dividends but rather returns of excess premiums and thus should be treated as business expenses for tax purposes. This decision was based on an interpretation of the Revenue Act of 1918 which allowed corporations to deduct "all ordinary and necessary expenses paid or incurred during the taxable year in carrying on any trade or business." The ruling clarified how life insurance companies' profits are calculated for taxation purposes, ensuring they aren't taxed unfairly on money returned to policyholders.

In the dissenting opinion for New York Life Insurance Company v. Edwards, the justice argued that the tax imposed by Alabama on out-of-state insurance companies was not a violation of due process or equal protection under the Fourteenth Amendment. The justice believed that states have inherent power to tax businesses operating within their borders and this includes foreign corporations. He pointed out that it is irrelevant whether these taxes are higher than those imposed on domestic corporations because each state has its own unique circumstances and needs which may necessitate different taxation levels. Furthermore, he disagreed with the majority's interpretation of 'privilege' in relation to interstate commerce, arguing instead that conducting business across state lines does not exempt a company from local taxation laws.