In the past decade, international tax policy and practice have been subject to unprecedented changes. Following the 2008 financial crisis, the 2013 BEPS initiative of G10/OECD aimed at countering tax avoidance by MNCs through the shifting of profits and at redirecting global tax treaty and transfer pricing policies. BEPS’ initially unfinished Action 1 (Tax Challenges Arising from Digitalisation) later developed into BEPS 2.0, with Pillars One and Two as groundbreaking initiatives. At present, it is far from resolved how these initiatives will fare. What seems to be certain, however, is that the ways in which MNCs have been able to conduct their tax affairs rather freely, may come to an end. Transparency and cross-border harmonization are the policy key words in the years to come, with (for companies) aggressive tax planning and (for states) unfettered tax competition and unrestricted fiscal autonomy probably becoming things of the past.

The changes that are currently taking place are magnified by developments at the UN. It recently presented itself as a serious contender in setting the international tax agenda. In November 2022, the UN General Assembly adopted a resolution claiming a major role for the UN in initiating and developing global tax policies. That this was not a short-lived effort became apparent with last August’s follow-up Report from UN’s Secretary General and, very recently, a further UN resolution. Also, where tax treaty policy is concerned, in recent years the UN Tax Committee has become quite visible by expanding the UN Model with rules that are far from mainstream. Further, in October 2023 the Committee surprised the international tax community with proposals for a fast-track instrument to insert in existing tax treaties new (UN Model based) provisions and for far-reaching changes dealing with high-paid executives working online from low-tax countries. It appears that one century after the birth of international tax law in 1923 when the League of Nations published a Report on Double taxation prepared by four distinguished professors, we are reaching another milestone in the overall design of international tax law’s architecture whose new contours are emerging, but which has not yet left the drawing boards.

The Professorship is supported by a generous gift from Mr Khattar ’66. He was one of the youngest “superscale” officers in the legal service before turning 30. A few years later he set up a one-man tax firm, which became KhattarWong. Mr Khattar, who resigned from the company in 2000 to pursue business interests, received the Public Administration Medal (Silver) at the National Day Awards in 1972, the NTUC Friend of Labour Award in 1979, the Meritorious Service Award in 1987, the Distinguished Service Award in 1994, and the Distinguished Service (Star) Award in 2001.