Firstly, I would like to turn your attention to the fact that this paper is not bound to the legal act of the currency conversion, but is explicitly bound to the impact of marketing on income growth and society's income increase. Marketing is a profitable meeting of needs which begins with market exchange. It is considered to be a dynamic field of business economy. Marketing is a managing and social process which creates, offers and exchanges products with value so that these products can meet the needs of individuals and groups. It also has an organisational function with the goal of creating, communicating and delivering values to the consumers. Marketing deals with the needs and wishes of individuals, and with finding ways to meet their needs. Marketing plays a major role in the banking sector because banks make up a large aspect of the national economy. Business banks have developed the most contemporary expression of marketing activities: strategic marketing whose aim is to lead a banking organisation through a continuously renewable process in order to coordinate it with the bank’s market surrounding. An important part of the banking sector’s marketing is the marketing mix which marks the programme of appearance on the market i.e. it is defined as means of endeavour to accomplish the economic operator’s goals. At the same time, marketing mix is a choice as well as a combination of different marketing elements set to accomplish goals. It covers a wide range of products, prices, distribution and promotion which makes up a big part advertisement. Many citizens, who have taken up housing loans in Swiss franc, have faced great difficulties which have initiated marketing campaigns on TV, in the newspapers and on the radio. These campaigns led to the approval of refinanced loans i.e. converted loans from Swiss franc to Croatian kuna. The paper lists bank's products, as well as the decision making process itself.