Questione giuridica chiave
Whether late-payment interest on self-employed AHV contributions for 2002 was owed.
Decisione estratta
Late-payment interest was owed on the unpaid contribution balance.
Motivazione estratta
Interest under Art. 41bis AHVV serves to offset the creditor's lost interest and the debtor's gain; it is owed without fault and also where the delay is not attributable to the debtor or, in principle, to the compensation fund.