Our expertise

Cross border tax planning

Navigating through an ever-changing landscape


Our expertise

Innovation box and IP tax planning

Proper IP tax planning starts at an early stage


Our expertise

Transfer pricing

It is all about solid preparation and bridging the gap


Our expertise

Tax litigation

Choose your own battles, but then go all the way


Our expertise

M&A Tax Advisory Services

The added value of our M&A Tax Advisory Services is reflected by a stronger negotiating position before and during a transaction, and by a better after-tax return on the transaction.


Our expertise

Tonnage tax regime

Shipping and navigation has been at the core of our nation for centuries,
which is reflected in our attractive tonnage tax regime


Otterspeer, Haasnoot & Partners is an international tax boutique, specialized in Dutch and international tax law. Based in Rotterdam, we advise domestic and foreign clients on both Dutch and international tax matters. Our clients comprise middle-market businesses, multinationals, private equity funds, institutional investors, financial institutions, government bodies and private individual investors.