Which case is cited as the business purpose doctrine: Gregory v. Helvering or Ableman v. Booth?
Gregory v. Helvering Gregory v. Helvering, 293 U.S. 465 (1935), was a landmark decision by the United States Supreme Court concerned with U.S. income tax law. The case is cited as part of the basis for two legal doctrines: the business purpose doctrine and the doctrine of substance over form. The business purpose doctrine is essentially that where a transaction has no substantial business purpose other than the tax avoidance and tax evasion|avoidance or reduction]] of Federal tax, the tax law will not regard the transaction. The doctrine of substance over form is essentially that, for Federal tax purposes, a taxpayer is bound by the economic substance of a transaction where the economic substance varies from its legal form.
Taylor v. Standard Gas &amp; Electric Co. Taylor v. Standard Gas and Electric Company, 306 U.S. 307 (1939) , was an important United States Supreme Court case in United States corporate law that laid down the "Deep Rock doctrine" as a rule of bankruptcy and corporate law. This holds that claims, as creditors, upon an insolvent subsidiary company by controlling shareholders or other insiders, like managers or directors, will be subordinated to the claims of all other creditors.