Back in 2010, the government set out its road map for the reform of corporation tax. The aim was to make the UK's corporation tax system the most competitive in the G20 through, mainly, a phased reduction in the main rate of corporation tax down to 24 %, fundamental reform of the CFC regime and improved rules for the taxation of intellectual property (including the introduction of the patent box). Roll forward two years and much of this has already been delivered or is provided for by Finance Bill 2012. But now there is more.