Marius van Oordt is an expert in indirect taxation in developing countries and has provided policy guidance to African, Asian, European, and American countries. He is an associate professor at the African Tax Institute at the University of Pretoria in South Africa, an external expert at the International Monetary Fund, and a member of the United Nations Subcommittee on Indirect Taxes in Developing Countries. He holds a PhD in tax policy from the University of Pretoria, South Africa.