Communication is important in every aspect of life, including the business world. Communication among employees is called internal communication. Motivating workers is the main reason for good or bad performance of a particular work task in the overall operations of the company. The aim of motivating employees is to encourage employees to take themselves to achieve the objectives of the company. As motivation is not personal characteristic, it can affect the behavior of the master. The very concept of internal communication, as well as the importance of a successful internal communication and its impact on employee motivation is the theme of this paper. In order to compile the theoretical definition, the author used secondary sources of information or knowledge of the relevant scientific literature. The proposed hypotheses are related to the testing of satisfaction with the performance and the influence of motivation on employee productivity. In order to confirm the hypothesis, will be surveyed in the form of a survey the company Zagrebačka banka on a sample of 50 employees.