Calculate Court Interest for any Australian Jurisdiction


Court Interest Calculator

This complimentary calculator calculates interest using the current interest rate in each jurisdiction. You will need Calin - Lawyer's Interest Calculator in these other situations:

  • Period involves past interest rates.
  • You need particulars of calculation for court pleadings.
  • You need to print details of the calculation.
  • Other interest rates - eg bank rates.
  • Take leap years into account.
  • Compound & periodic interest.
  • Data input validation.

Caution - check interest rates carefully and please advise us if the page and rates are out of date!

  Day Month   Year Include?  
First Day    
Last Day    
Jurisdiction  
     
Principal          
Days        
Interest Rate        
Rate Started        
         
Interest        
 
 
 



Calin's list of supported Australian interest rates and their oldest and newest rate changes.

No.NameStartedLast Change
1Qld Magistrates Ct Pre-J 25-Feb-1993 01-Jan-2014
2WA Sup Ct Pre-J 28-Jun-1991 11-Sep-1997
3Qld Supreme Ct Pre-J 25-Feb-1993 01-Jan-2014
4Qld District Ct Pre-J 25-Feb-1993 01-Jan-2014
5NSW Supreme Ct Post-J 01-Jul-1972 01-Jan-2014
6ATO General Interest Charge 01-Jul-1992 01-Jan-2014
7ATO Late Payment 01-Jul-1992 01-Jul-1999
8Family Law Act Post-J 08-May-1987 01-Jan-2014
9Federal Court Post-J 01-Aug-1979 01-Jan-2014
10SA Magistrates Ct Post-J 01-Jan-2000 01-Jan-2000
11WA Magistrates Ct Pre-J 28-Jun-1991 11-Sep-1997
12WA District Ct Pre-J 28-Jun-1991 11-Sep-1997
13NSW District Ct Pre-J 01-Jul-1972 01-Jan-2014
14NSW Local Ct Pre-J 01-Jul-1972 01-Jan-2014
15NSW Supreme Ct Pre-J 01-Jul-1972 01-Jan-2014
16NSW District Ct Post-J 01-Jul-1972 01-Jan-2014
17NSW Local Ct Post-J 01-Jul-1972 01-Jan-2014
18Vic Magistrates Ct Pre-J 01-Jul-1983 07-Oct-2013
19Vic Magistrates Ct Post-J 01-Jul-1983 07-Oct-2013
20Vic County Ct Pre-J 01-Jul-1983 07-Oct-2013
21Vic County Ct Post-J 01-Jul-1983 07-Oct-2013
22Vic Supreme Ct Pre-J (PIRA) 01-Jul-1983 07-Oct-2013
23Vic Supreme Ct Post-J 01-Jul-1983 07-Oct-2013
24SA District Ct Post-J 04-Sep-2006 01-Jan-2014
25SA Magistrates Ct Pre-J 01-Jan-2000 01-Jan-2000
26SA Supreme Ct Post-J 01-Jan-1987 01-Jan-2014
27SA Supreme Ct Pre-J 01-Jul-2010 01-Jan-2014
28ACT Magistrates Ct Post-J 01-May-1986 01-Jan-2014
29ACT Supreme Ct Pre-J 01-Jan-1974 01-Jan-2014
30ACT Supreme Ct Post-J 01-Oct-1977 01-Jan-2014
31Tas Supreme Ct Pre-J 01-Jul-2010 01-Jan-2014
32Tas Supreme Ct Post-J 01-May-2000 01-Jan-2014
33NT Local Ct Post-J 01-Sep-1987 01-Jan-2014
34NT Supreme Ct Post-J 01-Sep-1987 01-Jan-2014
35Federal Ct Pre-J 01-Jan-1991 01-Jan-2014
36Fed Magistrates Ct Post-J 01-Aug-1979 01-Jan-2014
37WA District Ct Post-J 28-Jun-1991 11-Sep-1997
38WA Magistrates Ct Post-J 28-Jun-1991 11-Sep-1997
39WA Supreme Ct Post-J 28-Jun-1991 11-Sep-1997
40Qld Magistrates Ct Post-J 17-Dec-1983 01-Jan-2014
41Qld Supreme Ct Post-J 17-Dec-1983 01-Jan-2014
42Qld District Ct Post-J 17-Dec-1983 01-Jan-2014
43ACT Magistrates Ct Pre-J (<15-7-1992) 01-Jul-1981 10-Jan-2005
44ACT Magistrates Ct Pre-J (15/7/92-10/1/2005) 01-Jul-1981 10-Jan-2005
45ACT Magistrates Ct Pre-J Commenced after 9/1/2005 01-Jul-1981 01-Jan-2014
46RBA Cash Rate Target 02-Aug-1990 07-Aug-2013
47Vic Legal Profession Act 2004 08-Nov-2007 07-Aug-2013
48NSW Legal Profession Act 01-Oct-2005 07-Aug-2013
49ATO Shortfall Interest Charge 01-Apr-2005 01-Jan-2014
50ATO Base Rate of Interest 01-Jan-1971 01-Jan-2014
51RBA Bank Accepted Bills (90 days) 01-Jan-1970 01-Jan-2014
52ATO Div7A Benchmark Interest Rates 01-Jul-1998 01-Jul-2013
53NSW Pre-J (Using Sched 5 to 30/6/10 then CRT) 01-Jul-1972 01-Jan-2014
54ATO Interest on Early and Over Payments 01-Jan-1971 01-Jan-2014
55Qld Interest on Money Orders 01-Jul-1998 01-Jan-2014

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