The right to an effective remedy guaranteed by the Charter of Fundamental Rights of the European Union requires that persons who hold information that is requested by the national administration, in the context of a cooperation procedure between Member States, must be able to bring a direct action against such a request.
Nevertheless, Member States may deny the taxpayer subject to the tax investigation and the third parties concerned by the information in question the right to bring such a direct action, provided that there are other remedies enabling them to obtain an incidental review of that request
Source curia
