In the case of Hopkins v. Bacon in 1930, the Supreme Court dealt with a dispute over inheritance tax law. The respondent, Bacon, was an heir to a large estate and argued that certain deductions should be made before calculating his inheritance tax liability. These deductions were based on debts owed by the deceased at their time of death as well as administration expenses related to settling the estate. However, Hopkins, acting as Collector of Internal Revenue disagreed and insisted that these amounts should not be deducted from gross estate value when determining taxable amount under federal law. The Supreme Court sided with Bacon's interpretation of the relevant statute (Revenue Act), ruling that such deductions are indeed permissible under federal law for purposes of calculating net taxable estates for inheritance taxes. This decision clarified how inheritances would be taxed moving forward - specifically allowing for deduction from gross estate values any outstanding obligations or costs associated with administering an inherited estate.

The dissenting opinion in the case of Hopkins v. Bacon disagreed with the majority's ruling that a tax assessment on an estate was incorrect due to a misinterpretation of the Revenue Act by the Commissioner of Internal Revenue. The dissent argued that there was no ambiguity in how to interpret and apply this law, stating it clearly meant for all property transferred at death - including life insurance proceeds - to be included when calculating gross estate value for taxation purposes. They believed this interpretation aligned with Congress' intent when passing legislation related to federal revenue collection from estates, which aimed at taxing wealth transfers occurring upon death comprehensively. Therefore, they felt that excluding life insurance proceeds from these calculations would contradict legislative intent and undermine efforts towards comprehensive taxation.