Kernrechtsfrage
Whether the AHV authorities were bound by the tax assessment's reported income and deduction treatment.
Extrahierter Entscheid
No binding effect existed because the insured had no reason to challenge the tax assessment.
Extrahierte Begründung
Although AHV authorities are generally bound by tax notifications, that bond falls away where there was no reason to file a tax remedy; then the underlying tax factors may be examined independently.