Summary

Portrait of Harlan F. Stone Harlan F. Stone Lucas v. Alexander — Opinion of the Court

There the value as of the date of death is the very thing taxed, and can usually be determined only by speculation as to future events. Here 1913 value is at most merely a mothod of allocating a known income to the periods in which it actually accrued. It is never necessary to speculate, as did the court below, as to what might later be realized from his property by the taxpayer, nor as to what might have been realized if, on March 1, 1913, he had made some forced disposition of the property which would have precluded any taxable gain.
Source: Wikisource

Portrait of Harlan F. Stone Harlan F. Stone Lucas v. Alexander — Opinion of the Court

For the necessity of ascertaining value as of March 1, 1913, can never arise until some later date when income has been produced by converting the property into money or money's worth and the amount actually realized is known, and then as we have said, only for the purpose of apportioning the total gain which has accrued between the periods before and after March 1, 1913.
Source: Wikisource

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