The development of information technologies and the digitalization of the entire economy have influenced changes in the company's operations. The implementation of e-invoicing is part of the process of digitalization of business processes, especially the automation of accounting. E-invoice is an integral part of modern and paperless business. The implementation of e-invoices began with an exchange in public procurement, proven by the Law on Electronic Invoicing in Public Procurement. By amending the Ordinance on Value Added Tax, the electronic invoice has been completely equated with the paper invoice, this removing legal obstacles that have affected the possibility of exchanging e-invoices. The basic goal of this paper is to explore and point out the importance of e-invoicing and its impact on the quality of accounting processes. The professional contribution of this postgraduate specialist work is in researching and presenting the importance of the application of information technology in accounting processes, with special emphasis on the use of e-invoices that contribute to the quality of accounting information. In the postgraduate specialist thesis, a case study of one budget user is presented. The implementation of e-invoices is specific to the observed budget user due to the special treatment of Value Added Tax, which presented a great challenge in creating automatic postings of incoming e-invoices. Based on the entire research, both the theoretical part and the case analysis, all the advantages of e-invoice implementation are presented and suggestions for improving the implementation process are given. The benefits of implementing an e-invoice reflect the ease of receiving and sending e-invoices and saving time, which enables simple and better business. E-invoice exchange significantly reduces the costs of businesses required to exchange paper-based invoices.