The global financial crisis emerged in the United States in 2008 and European debt crisis and its effects on public finance of countries resulted in a globally attention for financial transaction taxes. In this context, European Commission took concrete steps and proposed financial transaction tax at European Union level. Financial transaction taxes are taxes on purchase and/or sale of financial instruments, have generally small rate and ad valorem based. The main purpose of these taxes is to prevent financial instability and provide revenue for state. In this article, financial transaction taxes received from European Union agenda after the global crisis are investigated, whether they are useful for such purposes.