The Freuler v. Helvering case in 1933 revolved around the issue of taxation on income derived from a partnership agreement. The petitioner, Freuler, was an administrator for a deceased individual who had been part of a business partnership that owned and operated two theaters. Upon his death, his share in the profits continued to be paid out to his estate as per the terms of the original contract which stated that such payments would continue even after death until dissolution or termination by mutual consent. The Commissioner of Internal Revenue argued these payments were taxable income under section 22(a) and (b)2 of the Revenue Act while Freuler contended they should be treated as non-taxable capital returns since it represented purchase price for decedent's interest in partnership assets. The Supreme Court ruled against Freuler stating that these payments constituted taxable income rather than return on capital investment because there was no evidence indicating any change in ownership rights over property or assets following death; hence it could not be considered payment towards purchase price but simply continuation of profit-sharing arrangement agreed upon during life time.

In the dissenting opinion for Freuler v. Helvering, Justice Cardozo disagreed with the majority's view that a taxpayer could not deduct losses from sales of stock to a corporation controlled by his family members. He argued that there was no evidence of collusion or fraud in this case and thus, it should be treated as any other sale between independent entities. According to him, the tax law did not prohibit deductions for such transactions unless they were sham or fraudulent. He also pointed out inconsistencies in how the court had previously interpreted similar provisions of tax law and warned against creating an overly broad rule that would unfairly penalize taxpayers who engaged in legitimate business transactions with related parties.