Deposit Interest Rate in Switzerland decreased to -0.33 percent in June from -0.31 percent in May of 2019. Deposit Interest Rate in Switzerland averaged 2.37 percent from 1974 until 2019, reaching an all time high of 9.75 percent in September of 1981 and a record low of -0.34 percent in November of 2017. The Deposit Interest Rate is the average rate paid by commercial banks to individuals or corporations on deposits. This page includes a chart with historical data for Deposit Interest Rate in Switzerland.