The provisions of Sixth Council Directive 77/388/EEC must be interpreted as not precluding national legislation, such as that at issue in the main proceedings, under which the right to deduct VAT may be refused to taxable persons who are recipients of services and are in possession of invoices which are incomplete, even if those invoices are supplemented by the provision of information seeking to prove the occurrence, nature and amount of the transactions invoiced after such a refusal decision was adopted. The principle of fiscal neutrality does not preclude the tax authority from refusing to refund the VAT paid by a company providing services, in the case where the exercise of the right to deduct the VAT levied on those services has been denied to the companies receiving those services by reason of the irregularities confirmed in the invoices issued by that service-providing company.
CJ nr. C-271/12, 8 May 2013