The Decolonise IVS Organizational Self-Assessment Tool is designed to help International Voluntary Service (IVS) organizations critically evaluate and transform their structures and practices in a decolonial sense. This tool encourages reflection on how colonial histories influence current power dynamics within and between organizations. It provides guiding questions and exercises to foster mutual understanding, identify privileges and disadvantages, and promote actions toward reparative justice. The tool is interactive, allowing organizations to engage in bilateral conversations with partners and implement changes that support decolonial practices.