Tax Administration 2019

Comparative Information on OECD and other Advanced and Emerging Economies

image of Tax Administration 2019

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.

The report has three parts. The first contains four chapters that examine and comment on tax administration performance and trends up to the end of the 2017 fiscal year. The second part presents ten tax administration-authored articles providing a country view on a range of topical issues to tax administration, while part three contains all the data tables that form the basis of the analysis in this report as well as details of the administrations participating in this report.


Executive summary

Together the 58 tax administrations participating in the eighth edition of the OECD?s Tax Administration Series (TAS 2019) collect net revenues of EUR 11.4 trillion (2017). They are large and complex organisations employing around 1.6 million staff. They deal with the tax affairs of around 810 million personal income tax and corporate taxpayers who contact tax administration in excess of 500 million times via telephone, in-person, e-mail or paper and generate more than 1.6 billion online contacts. And the tax administrations do this on a combined operating budget amounting to around EUR 71 billion, equivalent to less than 1% of total revenues collected.


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