The ATO has published the 2017 September quarter rates for the General Interest Charge (GIC) and the Shortfall Interest Charge (SIC):
|GIC Annual Rate||8.73%|
|GIC Daily Rate||0.02391781%|
|SIC Annual Rate||4.73%|
|SIC Daily Rate||0.01295890%|
Ref: ATO website – GIC and SIC rates
Editor: the rate for that period for the interest on early payments (IEP), interest on overpayments (IOP) and delayed refund interest (DRI) is 1.73%.