The thesis examines the future of tax havens as a result of the OECD, the G20 nations and in Australia the Australian Taxation Office taking direct action to make them more transparent and to reform their bank secrecy laws. Tax havens have been blamed for adding to the global financial crisis and are seen as a source of revenue for those nations with large budget deficits. However, the US and the UK are still eager to attract the mobile capital flowing to tax havens and offshore financial centres and as a result tax havens will continue to provide financial services in the future. This thesis examines the activities of the OECD in making soft international law.