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Mike Williams, Director, Business and International Tax, HM Treasury

Mike Williams is Director Business and International Tax at HM Treasury.  

As such he is responsible for corporation tax, capital gains tax, value added tax, other consumption taxes, international tax and environmental taxes.  His main tax expertise is in international tax and banking.

Mike is the UK delegate to the OECD’s Committee on Fiscal Affairs, Chair of the ad hoc group to create the BEPS multilateral instrument on tax treaty measures, and is also a member of the Steering Group of the Global Forum on Transparency and Exchange of Information for Tax Purposes.

Among previous posts, Mike was:

  • Director Personal Tax and Welfare Reform at HM Treasury from January 2008 to March 2010.  This involved responsibility for income tax, social security contributions, inheritance tax, tax credits, savings and pensions and social security benefits;
  • Director International Tax at HM Treasury from July 2004 to January 2008.  As such he was responsible for cross-border aspects of direct and indirect tax, including VAT, and for the conduct of and responses to tax litigation before the European Court of Justice;
  • Deputy Director, International at the Inland Revenue from 2001 to 2004, with responsibility for business tax, in which role he was Competent Authority under the UK’s tax treaties.

Mike has a degree in physics from Balliol College, Oxford.