The aim of the article is to use investor classifications to determine the responsibilities of an investment advisor. The article develops the most appropriate tools to enable an investment advisor to classify clients and appropriately advise them through the investment advice process. The article states that a prudent investor’s standard is similar to the “typical consumer” within the meaning of Directive 2005/29/EC and case law of the European Court of Justice. The article concludes with stating that investment advice should be determined according to the characteristics of the individual investor in question.