Australia Three Month Interbank Rate. In Australia, the interbank rate is the rate of interest charged on short-term loans made between banks.. This page provides - Australia Three Month Interbank Rate - actual values, historical data, forecast, chart, statistics, economic calendar and news. Get updated data about global government bonds. Find information on government bonds yields, bond spreads, and interest rates. The ASX Bank Bill Swap (BBSW) Benchmark Rates represent the midpoint of the nationally observed best bid and best offer (NBBO) for AFMA Prime Bank Eligible Securities. Consistent with other unsecured short term money market benchmarks used globally, BBSW is characterised as an interest rate which includes a credit premium.