This technical report discusses product innovation and access to finance in Africa. It finds that the majority of the population in sub-Saharan Africa does not have access to formal financial services like banks, inhibiting economic growth. However, innovations in mobile money transfer, e-money and mobile banking are transforming access. These innovations reduce costs and allow new distribution models. Mobile network operators are well-positioned to provide low-cost transactions through non-traditional retail points. The report argues regulators need to support innovation without inhibiting it, and ensure risks from different financial products are appropriately managed.