This research paper discusses how to solve the problem of lack of access to financial services that have the vast majority of the population of developing countries. The proposed solution takes the hypothesis that the lack of access to financial services is mainly due to a supply problem. The business models used by financial institutions operating in developing countries are inadequate and inefficient by not allowing profitably serve low-income segments. This supply problem to be solved needs of developing low cost business models for the distribution of microfinance services adapted to serve segments of low-income population profitably.