Prof. Dr. Knut Henkel (Emden/Leer University of Applied Sciences) and Dr. Jenny Lay-Kumar (Managing Director of Regionalwert Research) present their concept and methodology for Sustainable Performance Accounting (SPA). They will explain how companies' environmental and social responsibility is incorporated into their financial statements: through the double materiality analysis of sustainability reporting and entries in the ESG sustainability memory, a dedicated section of the company's balance sheet, as well as how results from True Cost Accounting (TCA) can be integrated into valuation and accounting.