A Guide to Digital Taxation

A comprehensive study on digital taxation that provides a critical evaluation of potential unilateral, bilateral and multilateral measures targeting cross-border digital services and platform-based business models.

Why This Book?

Over the last three decades, information and communication technologies (ICTs) have revolutionized the economy, giving rise to new and dynamic digital business models. Businesses leverage these technologies to reduce costs, enhance productivity and expand their market reach. While the digitalization of the economy brings significant opportunities, it also poses ongoing challenges for traditional tax systems, which are still based on physical business presence. Many domestic and international tax rules have not adapted to digitalization, continuing to depend on principles from the early 1900s to determine taxation rights. As economies become more digital, challenges such as declining tax revenues and limited adaptability underscore the urgency of updating existing tax rules. Achieving worldwide agreement on a unified approach remains distant, especially after the United States withdrew support for such solutions in January 2025.
In this context, this book examines the ongoing debate about tax issues related to digitalization. With more jurisdictions introducing their own unilateral measures, it is essential to identify where current laws fall short so that effective amendments or targeted new rules can be developed for taxing the digital economy.

The book delves into the design and technical details of various unilateral tax measures, thoroughly analysing common approaches like digital services taxes, withholding taxes on payments for digital services and new nexus concepts, such as significant economic presence. It also explores how these measures interact with tax treaties and addresses broader concerns, including their consistency with EU law and WTO standards.
A Guide to Digital Taxation is an invaluable resource for practitioners, students and policymakers. It strives to offer both the most current coverage of this critical issue in international taxation and a depth of analysis that presents the larger perspective essential for meaningful research.