The benchmark interest rate in Bulgaria was last recorded at 0 percent. Interest Rate in Bulgaria averaged 1.14 percent from 2005 until 2019, reaching an all time high of 5.77 percent in December of 2008 and a record low of 0 percent in February of 2016. In Bulgaria, interest rates decisions are taken by The Bulgarian National Bank (BNB). The official interest rate is the Base Interest Rate (BIR). This page provides – Bulgaria Interest Rate – actual values, historical data, forecast, chart, statistics, economic calendar and news.