Summary

Owen J. Roberts Adams Manufacturing Company v. Storen…

A tax upon gross receipts affects each transaction in proportion to its magnitude and irrespective of whether it is profitable or otherwise. Conceivably it may be sufficient to make the difference between profit and loss, or to so diminish the profit as to impede or discourage the conduct of the commerce. A tax upon the net profits has not the same deterrent effect, since it does not arise at all unless a gain is shown over and above expenses and losses, and the tax cannot be heavy unless the profits are large.
Source: Wikisource

Owen J. Roberts Adams Manufacturing Company v. Storen…

Those that do not, do no more than impose a normal burden of government upon that commerce. On the other hand, some state gross income taxes may be designed or applied so as seriously to impede the freedom of interstate commerce. If interstate commerce should be so impeded, Congress might-under its commerce power-find it 'necessary and proper' to condemn all state taxes on gross receipts, in order to 'carry into execution' its granted power to regulate and protect interstate commerce.
Source: Wikisource

Owen J. Roberts Adams Manufacturing Company v. Storen…

At the same time, local intrastate enterprises, doing business in the same communities, must pay state gross receipts taxes whether profitable or unprofitable. Such a construction of the Commerce Clause-designed to prevent a State from imposing unfair tax burdens upon those engaged in interstate commerce actually serves to impose an unfair and discriminatory burden upon local intrastate business. Failure of an interstate business to make a profit does not relieve the State of its burden in affording protection for that business.
Source: Wikisource

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