Sigrid Hemels is a part-time full professor of tax law at the Erasmus School of Law of the Erasmus University Rotterdam. Her main position is State Councillor (Staatsraad)  in the Advisory Division of the Dutch Council of State (Raad van State). She is also a guest professor in tax law at Lund University School of Economics and Management (Sweden). She has focused part of her research on tax incentives for charities and the arts and private patronage (mecenaat). She is member of the scientific committee of the Giving in the Netherlands research project of the Free University Amsterdam. Furthermore, she has published and lectured, both in the Netherlands and abroad, on several other topics such as European tax law and gender equality and taxation.