The article discusses the importance of fair value measurement in accounting and control, especially in determining the value of assets and liabilities. International Financial Reporting Standards prioritize providing relevant information to users of financial statements. The article proposes an algorithm for selecting fair value valuation methods and identifies three levels of subjectivity in measuring assets and liabilities. It emphasizes the need for expertise in appraisal and professional judgment when using fair value methods. Historical cost and fair value offer different but valuable information to investors. A dual measurement and reporting model could be more effective for evaluating investments. Using various measurement methods in financial statements helps accurately reflect a company's financial situation and results.