Volunteering is the most visible expression of promoting solidarity, facilitating social inclusion and building social capital. For these reasons Volonteurope aims to promote the need for greater recognition of volunteering and explore ways to better capture its impact in systemic form through this policy paper.This paper provides a summary of research carried out in Belgium, Bulgaria, Czech Republic, Italy, The Netherlands, Romania, Serbia and the United Kingdom. It also defines social impact and identifies case studies on how Civil Society Organisations (CSOs) and volunteer-involving organisations (VIOs) measure their impact. An overview of the main tools available to assist the learning process and facilitate social and economic impact assessment is outlined. These tools are described in details and their strengths and limitations are highlighted.