This chapter elaborates on the relationship between digital services and the GATS. First, the characteristics of the GATS are explained, including the recognised four modes to supply services, the specific commitments WTO Members have included in their Services Schedules and how this impacts the Members’ obligations under this agreement. Digital services are not explicitly referred to in the GATS, but through an analysis of the scope of the GATS, this chapter explains why measures that affect digital services trade are covered by the GATS. Moreover, electronic delivery of services fits within the four modes of supply as recognised within the GATS. The chapter also elaborates on the principle of technological neutrality and how it applies to the GATS. Finally, the chapter discusses the work that has been undertaken by WTO Members in the context of the Work Programme on Electronic Commerce, which was established in 1998. The lack of substantive progress in the context of this Work Programme illustrates the divergent positions of WTO Members on digital issues.