The graduation theses is focused on wage problems and related areas in the private sector and contains summary of informations necessary to right pay accounting. With respect to tax and social insurance reforms in last years the main aim of this theses is to compare the impact of changes on pay accounting in years 2007 -- 2009. Problems of social and health insurance and taxes are mentioned in regularizations valid in these years. In every chapter are added examples concerning these problems. These examples allow year-on-year comparison. The graduation theses contains within mentioned problems also other problems: payroll deductions, mileage, refundof wages and benefits as other form of remuneration of employees. Also in these chapters are given examples for best understanding and clarity. Each chapter contains also accounting of mentioned problems in double-entry accounting. The graduation theses is ended up with complex example which compares height of net earnings in years 2007 -- 2009.