The article focuses on the necessity insuring financial stability of an enterprise and problems of this process. Financial stability is one of the main objectives for every enterprise aiming to operate successfully, being competitive and providing future development. Financial stability is one of the most important components of financial analysis. It is important to determining the level of financial stability, as well as in performing necessary activities to maintain acceptable level of financial stability. The model for ensuring financial stability in enterprises and the method for calculation of acceptable and critical level of financial leverage coefficient had been made for this purpose. This model includes methods which in determination of acceptable financial stability in every enterprise corresponds to its sector and features of its financial leverage