A blueprint for a coordinated minimum effective taxation standard for ultra-high-net-worth individuals
Contemporary tax systems fail to tax ultra-high-net-worth individuals effectively. This report presents a proposal to address this issue through international cooperation.
Our purpose
Our purpose
The EU Tax Observatory conducts innovative research on taxation, contributes to a democratic and inclusive debate on the future of taxation, and fosters a dialogue between the scientific community, civil society, and policymakers in the European Union and worldwide.
Average statutory corporate
income tax rate in the European Union
The average corporate income tax rate in the European Union has been more than halved since 1980, according to statistics compiled by the OECD and the European Commission
Recent publications
12.06.2025
Effective Tax Blacklists: Rethinking Criteria For the 21st Century
This report examines the evolution of harmful corporate tax practices in recent years, as well as the development of blacklists intended to identify such practices.
06.05.2025
The New Face of Corporate Tax Competition
The effective tax rate of multinational companies declined by 2.7 percentage points in the European Union between 2014 and 2022, shows a new EU Tax Observatory analysis of a decade of corporate tax reforms. The decline was exacerbated by tax competition between Member States.
10.07.2025
The Distribution of Profit Shifting
This paper characterizes profit shifting behavior across the size distribution of multinational enterprises (MNEs) to evaluate the targeting of the recently introduced Global Minimum Tax (GMT).
Our news
16.05.2025
Press Release: EU Tax Observatory Brought Together Leading Policymakers and Experts to Discuss the Future of EU Tax Policies
Paris, 16 May — Earlier this week, the EU Tax Observatory hosted its annual flagship event in Brussels. The event brought together leading voices in European taxation to explore the future of corporate transparency, global tax fairness, and the role of enforcement in a fast-changing world.
10.04.2025
Joint Press Release: Conclusion of the International Conference on Taxing Billionaires
The two-day International Conference on Taxing Billionaires, held in Paris, concluded yesterday. The event attracted over 200 participants, including academics, legal experts, policymakers, and representatives from international organizations. The conference focused on the effective taxation of...
17.10.2024
European Parliament subcommittee meeting on Tax Matters
A well-structured, comprehensive, and progressive taxation system is vital for generating the funds needed to support innovation and public investment, which are critical for the EU's competitiveness objectives.
EUTO in the media
09.07.2025
Esprit
For a European international taxation policy
So far, the United States has shown clear reluctance toward tax multilateralism. The European Union should take a progressive view of international taxation and make it a priority.
07.07.2025
Le Monde
"With the tax on the ultra-rich, France can show the way to the rest of the world": Seven Nobel Prize winners in economics advocate for the Zucman tax
At a time of spiraling public finances and the explosion of extreme wealth, creating a minimum tax on the wealth of billionaires should be a priority, Nobel Prize winners in economics believe in an article in "Le Monde."
02.07.2025
Finansavisen
Alone in supporting Jens' proposal: Wants to increase the basic deduction tenfold
According to Professor Annette Alstadsæter, deferring wealth tax could be a start, but she also wants to increase the basic deduction tenfold and tighten up the exemption method.
Our Tools
To widen access to knowledge, the EU Tax Observatory provides interactive tools, including a simulator of the tax deficit of multinational companies, and an explorer of country-by-country data on the activities of multinationals firms.
Our events
Room 2-21, Paris School of Economics 01.09.2024
The Offshore Talks
Join us for an engaging lecture series featuring a dynamic lineup of distinguished speakers who will uncover the hidden forces driving global inequality.
Hybrid 20.09.2024
2024-25 Lunch Seminar
Twice a month, the EU tax holds a seminar to discuss the challenges posed to national tax systems by the increased global mobility of capital and labour.
Barcelona 03.06.2025
Workshop on the Economics of Taxation
The Workshop on the Economics of Taxation, held at the University of Barcelona on 3-4 June 2025, will feature leading economists discussing topics in public economics, including corporate taxation, offshore wealth, wealth and inheritance taxation, taxes and inequality, and tax incidence.
Join Us
Please contact us for further information.
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