Questione giuridica chiave
Whether the lump-sum expenses attributed to O. for the second half of 2008 and 2009 were properly included in the AVS contribution base.
Decisione estratta
The existing record did not allow the court to verify whether the lump-sum expenses corresponded to actual work-related expenses and whether they could be combined with claimed actual expenses.
Motivazione estratta
Lump-sum expenses must reflect the concrete circumstances and correspond at least overall to the actual expenses incurred. The file did not establish the nature of the expenses covered, and combining lump-sum and actual expenses for the same cost item is generally impermissible.