Banks are special and therefore must run business based on prudential principles. The functions of banks in Indonesia are basically as financial intermediary that take deposits from surplus units and channel financing to deficit units. According to Indonesian banking law, Indonesian banking institutions are typically classified into commercial and rural banks. Commercial banks differ with rural banks in the sense that the latter do not involve directly in payment system and have restricted operational area. In term of operational definition, banks in Indonesia are classified into non-Sharia and Sharia-based commercial banks.
Recapitulation of Banking Institutions in Indonesia as of October 2011