Following the Budget announcements on 20 March, the UK published the Finance Bill 2013 on 28 March 2013. The Bill includes a reduction in the main rate of corporation tax to 21% in 2014 and to 20% in 2015. Explanatory Notes to the Finance Bill have been issued, and the detailed outline of the Patent Box legislation which applies from 1 April 2013 has been updated in the HMRCā€™s Corporate Intangibles and R&D Manual.

Explanatory Notes to the General Anti Abuse Rule (GAAR) are to be published when the Finance Bill is introduced into Parliament. HMRCā€™s Guidance on the GAAR is to be approved by an Advisory Panel, whose interim members are to remain in place until 15 April to enable them to complete this task. A Chairman has been appointed to the Advisory Panel andĀ will be called upon to give its opinion on cases where HMRC considers the GAAR may be applicable.