Corporate lending in the banking activities is one of the most important places, since it gives banks the opportunity to receive the greatest return, provided a sound and rational credit policy, and is one of the ways of obtaining financial support from the legal entities.The purpose of our work is to study and analyze the corporate lending sector to forecast the sales of credit banking products for corporate clients in the Russian Federation for the period until 2019. The object of our study is the activity of banks in lending to corporate clients. The subject of our study is the forecasting of credit relations of banks with corporate clients in the process of servicing their needs in the implementation of business development projects.The article is devoted to the study of corporate credit portfolio of the banking system of the Russian Federation and to the forecasting based on the multiple correlation-regression analysis method of increasing the sales volume of credit banking products for corporate clients in the Russian Federation