Question juridique clé
Whether default interest was owed on retroactively assessed self-employed AHV contributions for 2007 and 2008.
Solution extraite
Yes. Under Art. 26 ATSG and Art. 41bis AHVV, default interest is due on retroactively assessed contributions from 1 January following the relevant contribution year; no fault of the insured is required.
Motifs extraits
The insured became contribution liable when she began self-employment in 2007. The compensation office acted diligently after receiving tax information and reminders. Any alleged fault of the office did not exclude interest under the applicable rule.