Indonesia is one of the largest Islamic country in the world, this can be seen from the religious routine performed by the people of Indonesia as the holy days of Islam. as well as the development of banking in Indonesia particularly Islamic banking is in great demand by the people of Indonesia as this is in accordance with the basic principles that run the principle of mutual aid or principle of kinship.

History of Islamic Banking in Indonesia
 
        Islamic banking in Indonesia, was first pioneered by Bank Muamalat Indonesia which was established in 1991. The bank at the beginning of its establishment initiated by the Indonesian Ulema Council (MUI) and the government and received support from the Association of Indonesian Muslim Intellectuals (ICMI) and some Muslim businessmen. At the time of monetary crisis in late 1990, the bank was having trouble so that equity is the only remaining one-third of initial capital. IDB then give an injection of funds to these banks and in the period 1999-2002 can rise up and make a profit.
Until the year 2007 there were 3 institutions of Islamic banks in Indonesia, Bank Muamalat Indonesia, Bank Syariah Mandiri and Bank Syariah Mega. Meanwhile, commercial banks have sharia business unit is among 19 banks are large banks such as Bank Negara Indonesia (Persero) and Bank Rakyat Indonesia (Persero).
Sharia system has also been used by the Rural Bank, currently has grown 104 BPR Syariah.

The working principle of Islamic banks is the rule of Islamic law based on agreement between the bank and others to deposit funds and / or financing of business activities, or other activities in accordance with sharia.