This final work covers the fields from college of cost accounting, financial accounting and college of financial analysis for small and medium enterprises. The purpose of this final work is to demonstrate the importance and complexity of making internal reports according to the data provided by analytical accounting. Each successful manager recognizes and analyzes the changes that happening in the internal and external environment of the enterprise and according to them and relying on internal reports makes the best decisions for the company's business performance. The form of internal reports is not prescribed by law and as such it is left to the will and the requirements of the manager. Through close collaboration between the management and the accounting department of the company, the internal reporting is at a high level of development and the information contained in them are timely and accurate. In the example of two companies, Diba d.o.o. and Croatia osiguranje d.d., individuality will be shown in the requirements of the internal reports depending on the business activity of the company.