Since January 1993, the European domestic market is aimed at providing the free movement of persons, goods, services and capital within the European Community (EC). One of the main objectives of this initiative is to form a single European market, liberate cross-border services and to remove internal restrictions or barriers (e.g. concerning trade, tax etc.). Austria has decided to join this initiative and to transfer regulatory powers to the EC. One integral part of European Economic Law are the directives concerning banking supervision. The before mentioned directives are aimed at liberating and optimizing cross-border services provided by credit institutions.One of the main advantages of the harmonised European domestic market is that credit institutions are allowed to provide cross border services on equal terms both at home and abroad. The objective of the European banking directives are not yet fulfilled. Further steps have to be taken, numerous problems - of European law as well of national law - have to be solved ("structural problems"). The thesis "Strucutural problems in European and Austrian banking supervision law" analyses five selected problems, discusses possibilities of changes in European as well in national supervision law and tries to contribute to the discussions which proceed on european and national levels.