The Intra-European Organisation of Tax Administrations (IOTA) has published Disruptive Business Models – Challenges and Opportunities for Tax Administrations. The publication contains 15 articles prepared by the speakers of IOTA’s 21st General Assembly, including tax administrations’ director generals, senior executives and business representatives, and IOTA partners such as the Inter-American Center of Tax Administrations (CIAT) and the European Commission. The articles discuss the challenges and opportunities related to digital business models, the sharing economy, the impact of blockchain technology, and other technology-driven issues.