This chapter examines European Union (EU) law on discrimination. It provides an overview of provisions on gender equality and discusses equal pay for equal work under Article 157 of the Treaty on the Functioning of the European Union (TFEU). The chapter explains the principles of equal treatment in self-employment, social security matters and occupational pension schemes, and also discusses the provisions of Directives 2004/113, Directive 2000/43 and Directive 2000/78.