This study relates to a particular type of services provided in the EU, financial services. The legislation regarding financial services in the EU will be briefly analyzed in this paper. The EU legislation has changed and will change the financial markets of the Member States. Member States have to enact proper legislation compliant with the rules established for the integration of the financial market of Member States. Even if it seems that at this moment the integration task has been completed, a single financial market is still an objective to the European Union. The EU Commission has built a special framework for action in the field of financial services. The Commission wants to eliminate the remaining barriers to the free provision of financial services and aims to improve legislation and controls on the financial market for the period 2005-2010. This article will also try to make a short presentation of EU rules regarding banking, insurance, transaction in securities, financial conglomerates and institutions for occupational retirement.