The study explores the effect of management quality of accounting information system outputs on customer satisfaction in Saudi Arabia commercial banks. In the presentation of the data and the theoretical approach, the descriptive approach was adopted in evaluating the findings of the study aimed at knowing the effect of the consistency of the outputs of the accounting information system on the satisfaction of customers in the KSA commercial banks. Clients of commercial banks working in the KSA are the sample population. The research survey was a random sample involving 600 respondents from clients. The findings of the regression analysis revealed a statistically important reliability effect, where the value of (P) 463,384 was less than (0.00) in statistical terms, and this was verified by the (T) test. This means that stability as an aspect of the consistency of the performance of the accounting information system and the degree of customer satisfaction with the operating banks have a positive impact. A crucial research challenge in the consistency of literature on the quality accounting information system (QAIS) relates to the capacity of management accounting systems (MAS) to offer information that lets managers make smarter choices. Many scholars have advocated the use of more modern (QAIS) over the last decades.