Key legal question
Whether late-payment interest on self-employed AHV contributions for 2002 was owed.
Extracted holding
Late-payment interest was owed on the unpaid contribution balance.
Extracted reasoning
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.