Abstract. This article discusses the services provided in the tax system through information technologies, their types, interactive services in the tax system and their importance, benefits to legal entities and individuals, and their role in improving the state budget. Today, information technologies are becoming important for providing convenient and fast service to taxpayers, improving the activities of tax authorities and reducing errors. The article provides detailed information about the services provided with the help of these technologies, their positive impact on taxpayers and the activities of tax authorities. Among the information technology services used in the tax system, online tax declaration submission, electronic invoicing system, personal office of taxpayers and other interactive services are distinguished. These technologies allow tax authorities to receive and process information in real time, while saving time and money for taxpayers. The article also discusses the effectiveness of information technology services, the possibilities of paperless work through them, and issues of data security.