Mandatory pension participation in the Netherlands is currently under review. This article examines the manner in which the system of mandatory participation in sectoral pension funds is presently organised as well as future proposals from the perspective of the freedom to provide services. It also briefly reviews mandatory participation in Belgium, Denmark, Germany, France and Sweden and asks whether it constitutes a barrier to the freedom enshrined in Article 56 TFEU. Restrictions of this freedom in the field of mandatory participation are too easily excused in the Netherlands by pointing to decisions by the European Court of Justice (ECJ) in which it judged the system to be permissible. These decisions, however, were made from the perspective of competition law, and not on the basis of Article 56 TFEU. Grounds for justifying restrictions to this freedom exist, although different justifications are available for direct and indirect discrimination. The article questions how mandatory participation in the Member States considered in this article fare from this perspective?