In the 1963 case of Bruning v. United States, the Supreme Court examined whether a taxpayer could deduct from his gross income payments made to his former wife under a property settlement agreement incorporated into their divorce decree. The petitioner, Mr. Bruning, argued that these payments were deductible as alimony under Section 23(u) of the Internal Revenue Code of 1939. However, the IRS and lower courts disagreed with this interpretation. The Supreme Court affirmed these decisions by ruling against Mr. Bruning's claim for deductions on his tax return for those years in question (1952-1954). They concluded that such payments did not qualify as "periodic" or "installment" payments because they were part of an overall lump sum payment divided over several years rather than being dependent upon contingencies like life expectancy or remarriage status - factors typically associated with alimony. This decision clarified how taxpayers should treat certain types of spousal support when calculating taxable income and set precedent for future cases involving similar issues.

In the dissenting opinion for Bruning v. United States, it was argued that the majority's interpretation of Section 145(b) of the Internal Revenue Code was incorrect and overly broad. The dissent contended that this section should not be applied to cases where a taxpayer has made an honest mistake in their tax return due to confusion or misunderstanding about what is required by law. They believed that such errors are different from deliberate attempts to evade taxes, which is what Section 145(b) was intended to punish. Furthermore, they pointed out inconsistencies in how similar cases had been handled previously and suggested that these discrepancies indicated a lack of clear guidelines on how this law should be applied. Therefore, they disagreed with the decision to uphold Bruning's conviction for tax evasion based on his failure to report income he did not realize he needed to include in his returns.