Corporate Social Responsibility is a concept that is increasingly gaining importance in society as a response to the ever-increasing challenges of modern society. The goal of Corporate Social Responsibility is to focus on preserving the profitability of a company, while at the same time striving to achieve high living standards for all interest groups, inside and outside the company. Corporate Social Responsibility applies, not only to manufacturing companies, but also to service companies, and banks can apply and support the concept in different ways. The focus of the regulatory bodies, that supervise the operations of the institutions of the banking sector, is not primarily focused on the components of social operations, but the pressure of society affects the business policies of banks. This paper will see into the application of Corporate Social Responsibility in the banking sector in the Republic of Croatia and the impact of its application on business success, using the example of the following banks: OTP bank d.d., Erste&Steiermärkische Bank d.d. and Addiko Bank d.d. Through empirical research, it will be examined application of Corporate Social Responsibility, reporting on the application of Corporate Social Responsibility, and the impact of implementing of Corporate Social Responsibility on the example of selected banks, with special reference to the impact of the COVID-19 pandemic, both on socially responsible business as on the financial result of business. The research showed that Corporate Social Responsibility is recognized in the operations of banks in the Republic of Croatia, but it is not possible to confirm that the application of Corporate Social Responsibility has an impact on the financial performance of banks in the Republic of Croatia. Also, the research showed that the COVID-19 pandemic had a positive effect on the Corporate Social Responsibility of banks, and also that it had an impact on the financial performance of banks in the Republic of Croatia.