Kernrechtsfrage
Whether the cantonarily upheld tax assessment violated the prohibition of arbitrariness by disallowing the alleged CHF 70,000 brokerage commission.
Extrahierter Entscheid
The challenge failed because it was not established that a genuine independent brokerage service existed or that the payment was made for business reasons; the lower court could infer a personal relationship motive.
Extrahierte Begründung
The disputed payment was largely unsupported by evidence; the court found only assistance in sales efforts, not an autonomous intermediary activity. The factual objections were immaterial or unsupported.