Residential building management is a business activity that has existed in its current form for only about twenty years. The primary goal of each residential building manager is to preserve the building and increase its value, and to insure that the building functions adequately. Since residential buildings cannot function without constant flow money, monitoring and managing of the building money reserve is one of the main segments of residential building management. Therefore, it is very important to secure regular payments into the building money reserve. Research and literature on residential building management and the factors affecting the regularity of reserve payments are very scarce. The aim of this research was to examine the potential factors that affect the regularity of building reserve payments. The factors are divided into two separate groups of variables - sociodemographic factors and satisfaction of the building co-owners with different aspects of the building management service. A sample of 90 participants was included in the research. Two questionnaires were designed to conduct the survey. The results indicate a significant importance of financial status in predicting the regularity of the reserve payment - participants with higher household incomes are more inclined to pay the reserve regularly. Other sociodemographic variables did not prove significant. Also, the statistical significance of certain aspects of satisfaction with the work of the Manager in predicting the regularity of reserve payment was not found. However, it is important to emphasize that a possible explanation for the insignificance of these variables lies in the sample of respondents. Since only a part of the initially envisaged participants agreed to participate in the research and, by looking at their answers, one gets the impression of a homogeneous profile of participants, it is necessary to conduct further research on this topic in a larger and more diverse sample.