For business processes, it can be said that their approximate meaning can be explained as a way forward. But really, business processes are very difficult to define in detail. In order to define them, it is necessary to know where they are really used, what they really are, what their purpose is, and ultimately you need to know the end result of business processes. Reengineering actually signifies radical changes, which ultimately lead to a new start for the company. Which would mean that the company eventually leaves, actually loses all those well-established business procedures, and introduces some innovations in the production of its products or services, just to provide some new value to the customer, based on which it would create higher sales and therefore higher income. When it comes to doing reengineering in companies, it’s not about the formula, it’s actually about the tools that companies use to improve the current way of working. The aim of this paper is to describe in more detail how Hrvatske autoceste d.o.o. conducted a reengineering process in the toll collection sector. Also, the possibility of re-conducting reengineering in Hrvatske autoceste d.o.o. will be described in more detail, also in the toll collection sector.