A grouping of civil society organisations, trade unionists and activists has called on the G20 Finance Ministers to take action to "tax the rich" and stop tax abuse by multinational corporations. The organisations say G20 countries, the UN Tax Convention, and the Financing for Development processes are aware of the need to build progressive tax systems in the world and within countries to address the multiple challenges of inequality, hunger, and resourcing for public goods. Thami Ngubeni spoke to Zimbali Mncube, from the South African Tax Justice Working Group