Interbank Rate in New Zealand averaged 7.00 percent from 1985 until 2023, reaching an all time high of 35.50 percent in March of 1985 and a record low of 0.25 percent in May of 2020. This page provides - New Zealand Three Month Interbank Rate - actual values, historical data, forecast, chart, statistics, economic calendar and news. New Zealand 90-Day Bank Bill Rate (BKBM) - values, historical data and charts - was last updated on June of 2023.