What is the interest rate?

The rate used in calculating your interest is set by law and is reviewed every quarter.

Interest rates for 2015–16 are shown in the table.

You can get details of other quarterly interest rates from us.

Table: Interest rates used for calculation of early payments, overpayments and delayed refunds (2015–16)

Period	Interest rate (% pa)
1 July 2015 to 30 September 2015	2.15
1 October 2015 to 31 December 2015	2.14
1 January 2016 to 31 March 2016	2.22
1 April 2016 to 30 June 2016	2.28