Tax Administration 2015

Tax Administration 2015 is a comprehensive survey of tax administration systems, practices and performance across 56 advanced and emerging economies (including all OECD, EU, and G20 members).

Tax Administration 2015, produced under the auspices of the Forum on Tax Administration, is a unique and comprehensive survey of tax administration systems, practices and performance across 56 advanced and emerging economies (including all OECD, EU, and G20 members). Its starting point is the premise that revenue bodies can be better informed and work more effectively together given a broad understanding of the administrative context in which each operates. However, its information content is also likely to be of interest to many external parties (e.g. academics, external audit agencies, regional tax bodies, and international bodies providing technical assistance). The series identifies some of the fundamental elements of national tax system administration and uses data, analyses and country examples to identify key trends, comparative levels of performance, recent and planned developments, and good practices. This edition updates performance-related and descriptive material contained in prior editions with new data up to end-fiscal year 2013, and supplements this information on some new topics (e.g. aspects of compliance management and strategic priorities for increased use of on-line services). It also includes coverage of four additional countries (i.e. Costa Rica, Croatia, Morocco, and Thailand).

This report is the ninth edition of the OECD's Tax Administration Series. It provides internationally comparative data on aspects of tax systems and their administration in 59 advanced and emerging economies.

Widespread voluntary tax compliance plays a significant role in countries’ efforts to raise the revenues necessary to achieve Sustainable Development Goals. As part of this process, governments are increasingly reaching out to taxpayers – current and future – to teach, communicate and assist them in order to foster a “culture of compliance” based on rights and responsibilities, in which citizens see paying taxes as an integral aspect of their relationship with their government.

This report looks at effective e-service provision by tax administrations, summarising eight critical areas, and explores big data management and portals, as well as natural systems. It highlights key opportunities, looking at how these emerging technologies can be best used by tax administrations.

The eighth edition of the OECD's Tax Administration Series, this report provides internationally comparative data on aspects of tax systems and their administration in 58 advanced and emerging economies. The publication presents the results of the 2018 International Survey on Revenue Administration (ISORA), a multi-organisation international survey to collect national-level information and data on tax administration governed by four partner organisations: CIAT, the IMF, IOTA and the OECD. For the 2018 survey round, the Asian Development Bank (ADB) agreed to participate along with the four partner organisations.

This report highlights the key opportunities and challenges in establishing, operating, or improving advanced analytics functions in tax administrations. The report provides practical examples of how administrations are currently utilising advanced analytics, and discusses key topics.