AbstractThis study introduces an enhanced theoretical model aimed atminimizing the total costs of working capital within Supply Chains by lever-aging Reverse Factoring and Inventory Financing. A comprehensive modelwas then developed for financial costs in supply chains with a combinedtopology. This model was not only stated but also transformed into a prac-tical tool for professionals. To validate its applicability, the model was imple-mented in real-world business scenarios. Further, this paper offers guidelinesfor future deployments of the developed tool.