This CFE Opinion Statement discusses the decision of the Grand Chamber of the ECJ in Vodafone. The Court held that the imposition of the Hungarian progressive turnover-based tax on the telecommunications sector did not infringe the EU fundamental freedoms or article 401 of the VAT Directive (2006/112), and that the question regarding the prohibition of State aid was inadmissible. Vodafone is especially important in respect of the current debate regarding turnover-based digital services taxes.