The aim of this dissertation thesis is to compile a systematic methodical approach for fixed assets as a national methodology. It focuses on stocks, consumption of fixed capital and capital services. The thesis is divided into three parts and six chapters. Chapter one and chapter two are used as a general theoretical base for chapters 3 to 5. Chapter 3 is based on a standard approach to the perpetual inventory method (PIM) as it is used in the Czech Republic. Chapter 4 is devoted to capital services and to an alternative approach to PIM. It is not used in the Czech Republic until now. Estimates are an integral part of the chapter. Chapter 5 describes capital services for other non-market producers, both methodology and estimates are covered...