In Indonesia, a country with a majority Muslim population, there exists a deficiency in the understanding of Islamic banking. Despite the presence of Islamic banks operating in Indonesia for several decades, their penetration remains remarkably low. This situation is also reflected at BSI KCP Madiun, where there is a lack of interest among the populace in depositing their funds due to their limited knowledge about Islamic banking. This research aims to investigate the influence of knowledge on the inclination to save funds at BSI KCP Madiun. The research method employed is the quantitative research method. The sampling technique utilized is simple random sampling. A total of 100 respondents were sampled. The data analysis employed includes validity, reliability, simple linear regression, multiple linear regression, t-test, and coefficient of determination. From the data analysis results, it can be concluded that: partially, the knowledge variable has an influence on saving at BSI KCP Madiun. This is evidenced based on the results of the t-test in Table 4.10, which is 0.001 < 0.05, thus Ha is accepted, and H0 is rejected. Based on the coefficient of determination (R2) obtained, which is 0.611, it means that the knowledge variable has an influence of 61.1% on the interest in saving funds at BSI KCP Madiun, and 38.9% is influenced by factors not included in the model.