High bank interest rates have been one of the main problems in certain periods for Turkey. When the development trend of interest rates is examined, it is seen that interest rates were high in the past, they decreased between 2002 and 2010, and they have been increasing after the year 2011. In order to reach low bank interest rates, monetary and fiscal policies are the main tools that can be used. Therefore, the application of monetary and fiscal policies in a harmonious way has substantial importance. Within this context, this study is prepared to evaluate the recent experience of Turkey in terms of harmonious monetary and fiscal policies. In this context, the period after 2010 is included and the period after 2016 is focused especially. Hence, recent approaches and practices in Turkey in terms of the harmonious policy are examined. As a result of the study, it is determined in the study that tight monetary policy and loose fiscal policy are applied generally in Turkey. However, monetary and fiscal policies have begun to be harmonious with the last quarter of 2018. In this context, the credit interest rate of banks has been decreasing with the last quarter of 2018 which was increasing since 2017. This shows that harmonious policies are so important that low bank interest rates cannot be reached without the practice of harmonious policies. This is the most important point that should be stated. Therefore, if it is desired to reach a low credit interest rate of banks, it is highly recommended that Turkey should always adopt harmonious monetary and fiscal policies.