There is no interest charged on HELP debts.
However, indexation is added to your debt on 1 June each year.
Indexation is applied to your debt to maintain its real value by adjusting it in line with changes in the cost of living.
HELP debts are not indexed until they are 11 months old.
Information on the process of indexation being applied to HELP debts is set out in relevant loan information booklets and forms that students complete and agree to when requesting a HELP loan.
See the ATO website for current and past indexation rates.