Business entities must invest financial resources in projects in order to achieve business growth.They have at their disposal other people's and their own sources of financing. Often, the available own funds are insufficient to start the desired project, and business entities find the required financial resources from other sources. Other sources of financial resources create an obligation for the business entity towards creditors who expect benefits in the future from the borrowed funds. Most often, business entities seek financial resources from credit institutions, primarily banks, which conduct a credit analysis of the business entity that determines its creditworthiness, based on the results of which the lending of financial resources is approved. To analyze the creditworthiness of the client, the bank can use 6K credit analysis. 6K credit analysis evaluates 6 key elements of the client: character, capital, capacity, conditions, collateral and control. Each element evaluates different items, and it is important to evaluate each element in order to obtain a complete assessment of the client's creditworthiness. The importance of the assessment of each category for a complete assessment of the client's creditworthiness is tested by the hypothesis of the work "omission of any element of the 6K analysis can lead to a different conclusion about the creditworthiness of the analyzed client". To test the hypothesis, 6K credit analysis was used to assess the creditworthiness of Sintel d.o.o. The conducted assessment determined that the company has a positive creditworthiness. By analyzing all elements of the 6K credit analysis, a thorough assessment of the company's operations is obtained, on the basis of which it is possible to assess its intention to repay the loan obligation. Empirical research has proven that omitting the assessment of any category can result in an incomplete assessment of creditworthiness, which is why banks can make erroneous decisions when lending.