"This is a difficult judgment for the Commission," Kotsonis said. "The Commission will welcome the fact that the court has confirmed the Commission’s right to investigate national tax measures for compliance with state aid rules and helpfully re-affirmed its right to analyse the state aid compliance of national tax measures by reference to the arm’s length principle. These outcomes are important as they have been contested vigorously by certain member states and indeed alleged beneficiaries of state aid, including in the Apple case."
"However, much less welcome for the Commission is the court’s confirmation that the evidential burden necessary to demonstrate that a tax measure breaches state aid rules is high. In the Apple case, as in the Starbuck case before it, the court criticised the Commission’s analysis concluding that the Commission, ultimately, did not succeed in showing to the requisite legal standard that there was a breach of state aid rules," he said.
"The ruling will not stop the Commission from pursuing, as it has said it would, other state aid investigations focusing on the tax arrangements of member states with certain multinationals but it is likely to lead to a much more robust economic analysis on the part of the European Commission in its tax-related state aid decisions," Kotsonis said.