Informatization and internetization bring numerous and positive changes in the operations of catering facilities, allowing the inclusion of Croatian catering facilities in the world's business development trends. Information systems are complex systems that facilitate the operation of catering facilities, given the specificity of the business of catering facilities. It is also important to emphasize the implementation of fiscalization, or the introduction of traffic control in trade, as citizens get insight into the amounts of taxes that must end in the state budget rather than on someone's private account, which reduces the possibility of doing business in the gray zone. In addition to this process, fiscalization affects software development and providing IT support, as well as more effective control over employee work. The paper seeks to link the development with the influence of information technology in the conduct of catering business. In addition to providing easier business tracking, more customer service is more protected because they have insight into the accounts that hosts are required to issue to each guest. The subject of the study is coffee bar No UNO, which is located in Cista Provo and in which example will show the way of informatization of the catering facility, as well as the implementation of the fiscalization process and compliance with the provisions defined by the Law on Fiscalization.