Abstract: The article represents a critical overview of existing in scientific literature and business practice scientific views on the analysis of debt capital. The significance of diagnostics of credit relations of with banks was emphasized. The cost of credit agreement, level of payment discipline and efficiency of debt exploitation are considered to be the main aspects of such an analysis. The key primary parameters of the credit agreement that should be thoroughly studied by business analysts include the amount of the loan, term of crediting, interest rate, guarantees of the warrantor and their implementation, intended purpose, technology of interests’ calculation, calendar schedule of debt servicing, bank charges and other related fees, possibility and procedure of early loan settlement, fine system etc. The cost of the debt is to be calculated by taking into account all expenses incurred by the borrower in connection with its fulfillment.

The full set of possible expenses of the borrower is defined. To calculate the real cost of credit it is necessary to use the tabular editor of Microsoft Excel, which will determine the appropriate interest rate.

An algorithm for preparing initial financial values to use a special formula (XIRR) is described. The payment discipline assessment under the loan contract should be carried out not only on the part of the borrower, but also, in the case of large investment projects that require tranch financing, but also on the part of the granting banks.

Performance analysis of bank loans’ exploitation provides calculation of such indexes as return on bank loans and bank loans’ turnover.