The U.S. Supreme Court case Commissioner of Internal Revenue v. Duberstein et ux., 1959, revolved around the issue of whether certain transfers constituted gifts under section 102(a) of the Internal Revenue Code and were therefore not taxable income. The court ruled that there was no definitive test to determine if a transfer is a gift but stated it depends on the intention of the donor as gleaned from all factual circumstances. In this particular case, two transactions were scrutinized: one where Mr.Duberstein received a Cadillac from an associate after providing him with business contacts (which was deemed not to be a gift), and another where Stanton gave his church $20,000 upon retiring (which was considered to be a gift). Ultimately, in both cases, lower courts' decisions were reversed because they had used incorrect standards for determining what constitutes as "gifts". The Supreme Court emphasized that such determinations should rely heavily on facts rather than set definitions or labels.

In the dissenting opinion for Commissioner of Internal Revenue v. Duberstein et ux., Justice Brennan, joined by Justices Warren and Douglas, argued that the majority's decision to leave determinations about whether a transfer constitutes a gift or income up to lower courts on an ad hoc basis was impractical and would lead to inconsistent results. Instead, they proposed a more objective standard: if there is no legal or moral obligation for the transfer and it comes from detached generosity, then it should be considered as a gift; otherwise, it should be treated as income. They also disagreed with the majority's view that gratitude alone could not transform compensation into gifts because in their perspective such transformation can occur under certain circumstances where gratitude is significant enough. The dissenters believed this approach would provide clearer guidance for taxpayers and ensure greater consistency across different cases.