The international corporate tax system faces growing challenges. While the OECD/G20 Base Erosion and Profit Shifting (BEPS) project represented an unprecedented multilateral effort to tackle profit shifting, many questions over the allocation of taxing rights remain unresolved. Digitalisation and globalisation have highlighted certain vulnerabilities in the existing framework, which allocates taxing rights principally on the basis of physical presence. In addition to this, some BEPS issues remain. In this context, an increasing number of jurisdictions are taking uncoordinated and unilateral actions (e.g. digital services taxes), contributing to an increase in tax and trade disputes and growing tax uncertainty. The COVID-19 crisis is exacerbating these tensions by accelerating the digitalisation of the economy and increasing pressures on public finances. The fact that many firms have benefitted from direct or indirect government support during the crisis is also likely to intensify public dissatisfaction with tax avoidance by multinational enterprises (MNEs). (…) By David Bradbury, Tibor Hanappi, Pierce O’Reilly, Ana Cinta González Cabral (OECD Centre for Tax Policy and Administration), Åsa Johansson, Stéphane Sorbe, Valentine Millot, Sébastien Turban (OECD Economics Department).