Kernrechtsfrage
Whether the club could invoke legitimate expectations to prevent retroactive reassessment of AHV/IV/EO contributions on sports salaries and expense portions before 2001.
Extrahierter Entscheid
Yes. Because the earlier audit practice had not objected to the club's long-standing expense allocation method, the club could rely on protected trust and no retroactive contribution recovery before 2001 was permissible.
Extrahierte Begründung
The court held that trust protection under Art. 9 BV applies in social insurance matters when a competent authority's conduct or omission creates justified reliance and the insured party has arranged its affairs accordingly. The earlier control did not object to the wage-expense split, the club plausibly continued the practice in reliance on that silence, and the public interest in enforcing the objective contribution rules did not outweigh that reliance for the period before 1 January 2001.