G7 countries reached a historic deal on global tax reform this week. Under the agreement, G7 nations will back a global minimum corporate tax of at least 15 per cent. The reforms will affect the largest companies in the world with profit margins of at least 10 per cent. But what does this mean for Africa. Anthony Munanda, Technical Expert: International Taxation at the African Tax Administration Forum (ATAF) joins CNBC Africa for more.