Questione giuridica chiave
Whether input tax on employees' representation expenses could be deducted without invoices or equivalent supporting documents.
Decisione estratta
No. Missing supporting documents are not merely a formal defect; they mean the material condition for input tax deduction is not proven.
Motivazione estratta
Outside the net tax debt regime, only input tax actually and provably borne may be deducted. Arts. 15a and 45a OLTVA concern defective documents, not the complete absence of vouchers.