During the year, there were certain changes both in people's lives and in the business world. Specifically talking about the 21st century and the various changes that have accompanied it for some time, we apply how the whole world is getting used to new and unpredictable ways of doing business. The whole situation with COVID19 is unaccepted to many in terms of digital business transformation. Many companies accept telecommuting as a sustainable and productive way of doing business and managing the workforce. Given that employers and workers were found in unknown conditions, it was necessary to provide employees with the appropriate infrastructure as soon as possible, with uninterrupted communication and collaboration, so business information systems are important to us in the organization. Nowadays, it is simply impossible to imagine a business that does not include business information systems. The thesis analyzes the individual components and life cycle of the business information system and, based on theories, is transferred to the analysis of the accounting company Vomi commerce d.o.o. Observing the business of the accounting service we can apply how accounting firms are still connected to the documentation we keep in paper form, but to make the organization of data as clear as possible all data transmitted in applications that are themselves programmed in such a way that each data has its own module which allows him easier control. In this thesis we will analyze the Synesis program and some of its essential modules that stand out for the functioning of accounting services. As time goes by, the company enables the storage of data through the Drobox program, which is used by a large number of people for the purpose of storing important data, files and stored content. Such a business system leads to wider business because it has the easy ability to scan and store documentation in applications without physically delivering documentation.