Abstract
nternational corporate tax avoidance by multinational enterprises likely lowers the Czech Republic's corporate income tax revenue, but it is not clear by how much. To clarify this I first review existing estimates of the costs of international corporate tax avoidance to government revenue worldwide.
I then discuss research and revenue estimates relevant for the Czech Republic and develop a few new ones, albeit only illustrative. None of the existing research focused on the Czech Republic nor the five recent international studies I examine provide reliable estimates for the Czech Republic.
The extrapolations from these studies result into a range from 6 to 57 billion CZK (4-38 % of current corporate income tax revenue) with a median of 15 billion CZK (10 %) in annual corporate income tax revenue loss. This scale is comparable with the responses of 35 Czech experts with a median of 20 billion CZK (13 %).
I conclude with a discussion of these rough estimates as well as questions for further research and policy recommendations.