New European commission chief Jean-Claude Juncker under fire after leaked documents reveal Luxembourg 'helped 300 top firms to avoid tax' when he was prime minister
European Union Commission president Jean-Claude Juncker under fire
He presided over Luxembourg while hundreds of firms used it to avoid tax
Papers show firms used internal loans and interest payments to cut tax bills
Leaked tax documents show arrangements were signed off by EU state
Papers relate to 340 top firms including Apple, Louis Vuitton and Vodafone
They are legal, but are predicted to trigger calls to stop firms avoiding taxes
British companies using scheme include Dyson and drugs group Shire
Read more: http://www.dailymail.co.uk/news/article ... z3INKCSGKB