Vanderbilt Law Review

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An examination of the current status of state net income taxation on interstate business logically begins with the decision in Northwestern Portland Cement Co. v. Minnesota and its companion case Williams v. Stockham Valves & Fitting, Inc.' There the United States Supreme Court held that an apportioned, nondiscriminatory excise tax imposed by a state on the net income of a foreign corporation does not violate either the due process clause or the commerce clause of the federal constitution, even though the income is derived solely from interstate commerce. Mr. Justice Frankfurter, dissenting, warned that increased burdens of bookkeeping necessary to ascertain the tax due under the diverse state formulas would far outweigh the various local interests.