Digitalization is transforming economies and societies by enabling ubiquitous connectivity and new business models. This raises challenges for international tax rules. The OECD report discusses three key characteristics of highly digitalized businesses - scale without mass, reliance on intangibles, and the role of data and user participation - and whether they require changes to tax rules regarding nexus and profit allocation. Countries disagree on these issues and whether interim measures are needed. The OECD is working towards a consensus-based global solution by 2020 to maintain a coherent international tax system in a digitalizing world.