George Osborne’s promise to crack down on multinational companies’ avoidance of UK taxes by the use of impenetrable devices such as the ‘Double Irish’ and the ‘Dutch Sandwich’ certainly has the support of this column. I have long argued that the ‘fiduciary duty’ (identified by Google chairman Eric Schmidt) to minimise tax bills within the law for the benefit of shareholders has to be balanced against a moral duty to pay at least a modicum of tax in every profitable territory.