The base erosion and profit shifting (BEPS) initiative of the Organisation for Economic Cooperation and Development (OECD) and G20 countries marks an important development in the reform of the international taxation regime. In this paper I argue that the initiative nevertheless fails to provide a coherent account of what global justice requires in the realm of fiscal policy. While the OECD's ostensible aim to increase and protect the tax sovereignty of states is commendable, there is insufficient attention for the distribution of relative tax sovereignty. I show that current global income inequality is correlated with significant inequality of tax sovereignty, that this inequality is unjust on a plausible conception of what global justice requires, and that the BEPS initiative is unlikely to meaningfully address this injustice. I close by suggesting that an internationalist conception of justice concerned with securing the tax sovereignty of independent polities may need to prescribe the creation of globally redistributive institutions.