Global Minimum Tax at a glance The OECD ́s Global Minimum Tax is amongst the most discussed topics in the recent international tax law debate. The book provides for more than 25 individual but co-ordinated essays on multiple relevant topics on Pillar Two is structured as follows: General Topics including the legal status of the GloBE Model Rules, their relation to tax treaties and EU Law, the GloBE STTR, the specifics of jurisdictional blending, their impact on tax competition and on tax incentives Scoping topics including the computation of the EUR 750 million threshold, the definition of MNE Group, territorial allocation of CEs and excluded entities Charging provisions, including GloBE ́s rule order and the impact of the GloBE Model Rules on minority shareholders Computation of GloBE Income and Loss, including contributions on the adjustment of permanent differences and specifics of dividends and equity gains for purposes of the base determination Computation of Adjusted Covered Taxes, including the notion of covered taxes, the recognition of temporal differences and the territorial allocation of covered taxes Top-up Tax computation including contributions on the general correspondence of covered taxes and GloBE Income, the Substance-Based Income Exclusion, the specifics of Investment and Minority-Owned Constituent Entities and the general role of the QDMTT within the framework of Pillar Two Selected topics on the administration of GloBE, e.g., Safe Harbors and the identification of the taxpayer within the framework of Pillar Two

The book describes the difficulties of the current international corporate income tax system. It starts by describing its origins and how changes, such as the development of multinational enterprises and digitalization have created fundamental problems, not foreseen at its inception. These include tax competition—as governments try to attract tax bases through low tax rates or incentives, and profit shifting, as companies avoid tax by reporting profits in jurisdictions with lower tax rates. The book then discusses solutions, including both evolutionary changes to the current system and fundamental reform options. It covers both reform efforts already under way, for example under the Inclusive Framework at the OECD, and potential radical reform ideas developed by academics.

Eden examines how transfer pricing has been handled in different disciplines, including international business, economics, accounting, law and public policy.

The international tax system is in dire need of reform. It allows multinational companies to shift profits to low tax jurisdictions and thus reduce their global effective tax rates. A major international project, launched in 2013, aimed to fix the system, but failed to seriously analyse the fundamental aims and rationales for the taxation of multinationals' profit, and in particular where profit should be taxed. As this project nears its completion, it is becomingincreasingly clear that the fundamental structural weaknesses in the system will remain. This book, produced by a group of economists and lawyers, adopts a different approach and starts from first principles in order to generate an international tax system fit for the 21st century. This approach examines fundamental issues of principle and practice in the taxation of business profit and the allocation of taxing rights over such profit amongst countries, paying attention to the interests and circumstances of advanced and developing countries. Once this conceptual framework is developed, the book evaluates the existing system and potential reform options against it. A number of reform options are considered, ranging from those requiring marginal change to radically different systems. Some options have been discussed widely. Others, particularly Residual Profit Split systems and a Destination Based Cash-Flow Tax, are more innovative and have been developed at some length and in depth for the first time in this book. Their common feature is that they assign taxing rights partly/fully to the location of relatively immobile factors: shareholders or consumers.

This paper examines the role of minimum taxes and attempts to quantify their impact on economic activity. Minimum taxes can be effective at shoring up the corporate tax base and enhancing the perceived equity of the tax system, potentially motivating broader taxpayer compliance. Where political and administrative constraints prevent reforms to the standard corporate income tax, a minimum tax can help mitigate base erosion from excessive tax incentives and avoidance. Using a new panel dataset that catalogues changes in minimum tax regimes over time around the world, firm-level analysis suggests that the introduction or reform of a minimum tax is associated with an increase in the average effective tax rate of just over 1.5 percentage points with respect to turnover and of around 10 percent with respect to operating income. Minimum taxes based on modified corporate income lead to the largest increases in effective tax rates, followed by those based on assets and turnover.

This annual publication provides details of taxes paid on wages in OECD countries. It covers personal income taxes and social security contributions paid by employees, social security contributions and payroll taxes paid by employers, and cash benefits received by workers. Taxing Wages 2021 includes a special feature entitled: “Impact of COVID-19 on the Tax Wedge in OECD Countries”.

Tax competition in the form of harmful tax practices can distort trade and investment patterns, erode national tax bases and shift part of the tax burden onto less mobile tax bases. The Report emphasises that governments must intensify their cooperative actions to curb harmful tax practices.