This article tackles the interest rates’ convergence issue within 27 European countries. In this context, a series of data related to the interest rates within the aforementioned countries was used in order to test the rates’ convergence towards the average. Our results show a gradual and evident convergence. However, structural divisions were detected in the rate’s differential, which therefore sheds light on the necessity of being careful in the framework of the integration of new countries into the Eurozone.