Peer-to-peer (P2P) networks – decentralized group structures allowing anyone to easily download and share resources online – already play a critical role in the distribution of digital content. Most of the debate on P2P heretofore has focused on copyright issues. However, as the basis for legitimate business models a number of companies have already quietly embraced, P2P has a largely unknown and underestimated impact on taxation, with vast repercussions on the development of mature, profitable markets. This book analyses the current framing for digital and media supplies provided via P2P technologies through the lens of an interdisciplinary approach drawing on tax law, computer science, economics, copyright law, and business studies. VAT concepts such as those of economic activity and taxable person, taxable transactions, consideration, barter and taxable amount, and territoriality rules are discussed in connection with P2P, as is the evaluation of VAT liability for P2P operations in the presence of copyright infringement. Topics and issues considered include: