Page 4 - IOTA Good Practice Guide

0. Introduction

The evolution of big data is dramatically reshaping the way businesses operate. Technologies emerge
rapidly and the world expects tax administrations to join the revolution. In the Good Practice Guide, a
wide variety of good practices in applying data and analytics within tax administrations is collected.
Along the edges of five different topics, more than ten European countries have shared their valuable
insights.

These insights about data and analytics were collected through a questionnaire (which can be
downloaded on the GPG website). Roughly 30 countries took the opportunity to submit their answers
regarding this project. Many of these novice and advanced countries in data and analytics expressed
their interest in being further involved in this project and to actively share experiences, developments
and future possibilities of data and analytics in tax administrations. Therefore, a task force has been
formed and supported the Project Team for the valuable continuation of the project.
Also, the online IOTA GPG discussion platform, and the IOTA workshop ‘Analysis and Efficient Use of
Big Data - A Challenge for Tax Administrations’ in Utrecht, the Netherlands in October 2016 provided
useful input the project. From this input, five topics were selected that appeared to be most occurring
and challenging. These topics are data management, predictive modelling, social network analysis,
data visualisation and random audits. Additional examples from different areas within data and
analytics can be found under ‘Other topics’.

Since data and analytics is quite a technical subject, we strived to gather not only advanced examples
and insights, but also good practices that help novice countries to develop their data and analytics
capabilities. With each given example under the topics, the level of difficulty is displayed (basic,
intermediate or advanced).

All examples on this website were assembled by a task force consisting of data experts from different
IOTA member countries. Therefore, IOTA and the NTCA are very grateful to the following people for
their valuable contributions to the final result.

Country/organisation Name Title
Hungary Ádám Tibor Fajkusz Task force member
Norway Thomas Myhrvold-Hanssen Task force member
Switzerland Jean-Luc Wichoud Task force member
The Netherlands Shidrukh Khazen Task force member
The Netherlands Sander Lubbers Interaction designer
The Netherlands Roel Niessen Project leader
IOTA Mostafa Amini Project coordinator
IOTA Péter Póth Web master

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