Questione giuridica chiave
Whether voluntary occupational pension contributions by a self-employed person may be fully deducted from AHV-contribution income.
Decisione estratta
Only half of the personal payments into the occupational pension scheme could be deducted from gross income for AHV purposes.
Motivazione estratta
Under Art. 9(2)(e) AHVG, only personal contributions corresponding to the usual employer share are deductible. The case law in BGE 133 V 563 applies also to self-employed persons with employees; therefore the half-deduction rule governs both ordinary contributions and buy-ins.