296 F. Supp. 3 (N.D. Ohio 1969)
Cesarini v. United States is a staple in introductory federal income tax courses because it vividly illustrates the breadth of "gross income" under Internal Revenue Code § 61 and the practical operation of Treasury Regulation § 1.61-14(a) on treasure trove.
Does cash discovered inside a purchased used piano constitute gross income under Internal Revenue Code § 61, and if so, in which year is it includible—the year of discovery or the year of purchase—and is the amount taxable as ordinary income or capital gain?
Internal Revenue Code § 61(a) defines gross income broadly as "all income from whatever source derived," a phrase interpreted expansively by the Supreme Court to include undeniable accessions to wealth, clearly realized, over which the taxpayer has complete dominion (Commissioner v. Glenshaw Glass Co.). Treasury Regulation § 1.61-14(a) specifically provides that "treasure trove, to the extent of its value in United States currency, constitutes gross income for the taxable year in which it is reduced to undisputed possession." The timing of undisputed possession is informed by state property law. Exclusions, such as gifts under § 102, require donative intent by a known donor, and capital gain treatment under §§ 1221–1222 generally requires a sale or exchange of a capital asset.
The found cash was includible in the Cesarinis' gross income as ordinary income in 1964, the year it was discovered and reduced to undisputed possession. It was not taxable in 1957, was not a gift, and did not qualify for capital gains treatment.
Cesarini is frequently cited to demonstrate the expansive scope of § 61 and to teach timing and characterization principles for windfalls. It shows how administrative regulations like Treas. Reg. § 1.61-14(a) operationalize the Code and how state property law can determine when a taxpayer's rights vest for federal tax timing purposes. The case also reinforces that unexpected accessions to wealth are ordinary income absent a statutory exclusion or a sale/exchange event, and it dispels common misconceptions that found property might be a gift or capital gain.