Credit boundary and its reflection in bank accounting

The concept of "credit boundary" has not yet been the subject of special research. The author's definition of the credit boundary is given, its features in macro and microeconomics, the qualitative and quantitative credit boundary are reflected. The boundaries of certain types of credit have been clarified: commodity, bank, and state. The conclusion is made about the importance of the concept of "credit boundary" for modern economic science and the possibility of including it in the principles of lending.