This study aims to analyze the influence of financial literacy, trust, location, income, and public views related to profit sharing in saving at Islamic banks. This type of research is qualitative and quantitative. Sampling techniques are simple random sampling and questionnaires. The results showed that financial literacy and location did not affect the interest in saving at Sharia Banks in the people of Perbaungan District. Trust, income and perception of profit sharing have a positive and significant effect on the interest in saving at Sharia Banks in the people of Perbaungan District. The need to expand the arrangement of data on Islamic banks such as sharia principles and products/goods in Islamic banks, so that interest in saving at Islamic banks will increase.

Banks that carry out their business activities based on sharia principles, or principles of Islamic law, are called sharia banks. As time goes by, Islamic banks are starting to have more Muslim customers. Bank BSI Kc Kualasimpang, for example, has active Muslim customers. Muslims are known to have great interest in Islamic sharia banking. BSI Bank Kc. Kualasimpang operates based on sharia principles and does not provide payment services. Because the data was obtained from direct observations at BSI Kc Kualasimpang, this is a type of field research. This study uses a qualitative methodology. Primary and secondary data were used in this research. Primary data consists of a description of the factors that influence non-Muslim customers. Secondary data consists of books related to the research topic. The author found two components: internal and external factors. The research results show that of the internal and external factors studied, the dominant external factors influencing non-Muslim customers' interest in BSI Kc Kualasimpang are promotion, service, location and social level. Work and motivation are internal factors. The more promotions and services offered by banks to non-Muslim customers, the more likely they will join an Islamic bank.