Students in the double degree programme are required to be enrolled at the University of Göttingen the entire time (four semesters). While in Göttingen, the usual semester fees apply. 

While in Florence, no tuition is required, but there are mandatory service fees. Also, during your stay in Florence, you can receive partial exemption from service fees due in Göttingen upon request at the Studiendekanat (Office of the Dean of Academic Affairs).