The report sets out how tax compliance strategies are evolving in light of new technologies, data sources and tools, including the increasing use of advanced analytics. It also looks at how these changes might affect the role of audit and auditors in the future. Finally it suggests a number of areas where further work by the Forum on Tax Administration might assist tax administrations in their consideration and implementation of administrative reforms as a result of the changing compliance environment. The OECD is an international organization that consists of 30 Member countries from the developed world that accept the principles of representative democracy and free market economy. It originated in 1948 as the Organization for European Economic Cooperation (OEEC) to help administer the Marshall Plan for the reconstruction of Europe after World War II. Later its membership was extended to non-European states, and in 1961 it was reformed into the OECD. The organization provides a forum where governments can compare policy experiences, seek answers to common problems, identify good practice and co-ordinate domestic and international policies. With active relationships with some 70 other countries and economies, NGOs and civil society, the organization has a global reach. Renowned for its publications and statistics, its work covers economic and social issues from macroeconomics, to trade, education, environment, development and science and innovation.