The management problem is especially important due to the risk of enterprise bankruptcy under a market economy. Management by a business risk and to economic stability and safety of enterprise. Now, different methods are used in order that to prevent enterprises’ bankruptcy on the basis of prognoses and safety of risk methods, among from that, maybe, would be marked the following to those: method of DuPont, model of Altman, model of Olson, statistical methods well-known as the “Winnings” methods. The practical use of these models gave us a high result in case of small and middle enterprise. In every model the used discoveries are undertaken from the documents of the official financial reporting. The article analyzes mathematical methods and algorithms used to evaluate financial stability of an enterprise, such as the Altman Z-Score model. The models are designed to evaluate enterprise bankruptcy risks. The central concept is evaluation of the enterprise bankruptcy risk and presentation of an automated risk calculation system