Summary

Mahlon Pitney Shaffer v. Carter — Opinion of the Court

That the state, from whose laws property and business and industry derive the protection and security without which production and gainful occupation would be impossible, is debarred from exacting a share of those gains in the form of income taxes for the support of the government, is a proposition so wholly inconsistent with fundamental principles as to be refuted by its mere statement. That it may tax the land but not the crop, the tree but not the fruit, the mine or well but not the product, the business but not the profit derived from it, is wholly inadmissible.
Source: Wikisource

Mahlon Pitney Shaffer v. Carter — Opinion of the Court

The contention that there is a want of due process in the proceedings for enforcement of the tax, especially in the lien imposed by section 11 upon all of the delinquent's property, real and personal, reduces itself to this: that the state is without power to create a lien upon any property of a nonresident for income taxes except the very property from which the income proceeded
Source: Wikisource

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