 ITU presents a roadmap for a national digital identity framework. Today an estimated 1.1 billion people in the world are unable to prove their identity. Without official identification a person cannot access basic services and cannot enjoy health care, education, political and legal rights and countries cannot deliver vital public services. ICTs can help develop digital identification systems to create an inclusive digital society. This guide is for national leaders and policymakers to develop national digital identification initiatives as well as highlighting the key elements that should be taken into account in its development such as overarching principles, governance model, approach of adoption, architectural model critical success factors, digital identity implementation framework and digital identity country case studies. To sum up, this guide addresses the principles, models and guidelines for the development of a national digital identity roadmap. This framework will contribute to the realization of the sustainable development goals in particular Goal 16 which recognizes the need of providing legal identity for all by 2030.