The dual accounting method is an approach to managing financial records which separates out two separate sets of accounts. One set of accounts records the book value of assets and liabilities, while the other set reflects the market value of assets and liabilities. This dual approach allows companies to create a more accurate picture of their finances by providing up-to-date, market-based valuations of assets and liabilities. With dual accounting, companies can get a clearer understanding of their financial position and make more sound business decisions.