The aim of this study is to provide economic evidence of the relevance of aggressive tax planning (ATP) structures for all
EU countries. The study relies on economic indicators available at macro level and on indicators derived from firm-level data.
The objective is indeed to look at the relevance of ATP for all EU countries through these two complementary angles. For each
indicator, the study identifies outliers based on a consistent methodology. None of the indicators provides per se an irrefutable
causality towards aggressive tax planning. However, considered together, the set of indicators shall be seen as a "body of
evidence". While there is some data limitation, the study provides a broad picture of which country appears to be exposed
to ATP structures, and how it impacts on their tax base (erosion or increase). The discussed ATP structures can be grouped
into three main channels: ATP via interest payments, ATP via royalty payments, and ATP via strategic transfer pricing. In
addition to general indicators assessing the overall exposure to ATP, we also derive specific indicators for each of the ATP
channels. In combination, these indicators allow to classify entities within multinational enterprises into three types: target
entities, where the tax base is reduced; the lower tax entities where the tax base is increased but taxed at a lower rate;
and conduit entities which are in a group with ATP activities but no clear effect on the tax base is observable.
JEL-Codes:H25, H26, O21
Keywords:Taxation, aggressive tax planning, interest payments, royalty payments, transfer pricing
Research group:Macroeconomics and European Economic Policy