David is the Director of the School of Tax Law in the Centre for Commercial Law Studies, Queen Mary, London University. He teaches on LLM courses on UK Business Taxation, Corporate Finance and VAT. He lectures regularly in a number of European universities (University of Bologna, University of Leuven, University of Tilburg). He is a member of the European Association of Tax Law Professors.

• He gives regular seminars for banks, accountancy and law firms.

International conference papers:

• 'Tax Presumptions', University of Bologna 2008
• UK  National Reporter, ‘The EU and Third Countries: Direct Taxation’, Vienna University of Economic and Business, October 2006
• Joint UK National Reporter, ‘The tax consequences of restructuring of indebtedness (debt work-outs)', International Fiscal Association 2006 Amsterdam Congress
• 'Tax Law Principles in Europe', University of Bologna, September 2003
• 'Symposium on Corporate Income Tax Law', Budget Affairs Commission, Standing Committee of National People's Congress, Beijing, 2003
• 'The Long Term Budget Challenge of the G-7 Nations', Robert Schuman Centre for Advanced Studies and Southern Methodist University, Florence, 2001
• 'Third Sino-European Symposium on Taxation and Sustainable Development', Beijing, 2000
• 'Taxation of Small and Medium-Sized Enterprises', Stockholm School of Economics, 1999
• 'Notions of Tax Abuse in the tax laws of European States - UK Report', Conference of Association of European Tax Professors, University of Osnabruck, 1998
• 'UK Taxation of Trusts', Deakin University Law School, Queensland, 1998
• 'The Goods and Sales Tax', University of Sydney Major Issues Conference, Sydney, 1998

UK conference papers:

• 'VAT and Time Limits;, Victor Durckacz Memorial Lecture 2006
• 'Loan Relationships', Baker Tilly National Conference, 2003
• 'Corporate Tax Planning', BDO Stoy Hayward National Tax Conference, 2000
• 'Taxation of Groups', IIR Group Reporting Conference, June 2000
• 'The changing face of onshore capital gains tax', IIR Conference Tax Planning for High Net-worth Individuals, June 2000
• 'Banking, Secrecy and Tax Evasion', British Bankers' Association conference on Private Banking, February 2000
• 'The General Anti-Avoidance Rule', IIR Corporate Tax Manager Conference, 1999
• 'Taxation of Corporate Debt', Tolley's 1998 Tax Conference