Key takeaways
- Voluntary repayments can be made any time, in any amount. The ATO's preferred methods are BPAY and credit card, quoting your payment reference number (PRN).
- No discount applies. The ATO's voluntary repayments guidance lists no bonus for paying early; a dollar paid clears exactly a dollar of debt.
- Voluntary payments are extra: if your 2026-27 repayment income tops $69,528, the compulsory repayment still applies at assessment.
- Paying before 1 June beats indexation, but only if the ATO processes the payment in time. Allow at least 4 business days for electronic payments.
- Voluntary repayments are not refundable and not tax deductible when you make them yourself.
- Check your balance before paying a lump sum: the 20% reduction may have left it smaller than you think.
The rules at a glance
| Question | Answer (2026-27) |
|---|---|
| How do I pay? | BPAY or credit card with your PRN; other ATO payment methods also work |
| Is there a discount? | No. None applies to voluntary repayments |
| Can I get it back? | No. Voluntary repayments are not refundable |
| Is it tax deductible? | Not when you pay it yourself; employer-paid amounts differ |
| Do compulsory repayments stop? | No. They apply while an outstanding loan remains and income exceeds $69,528 |
| Best timing? | Well before 1 June; if clearing the whole debt, before you lodge your return |
Know your compulsory repayment first
Before finding spare cash, know what the system already takes. On $90,000 of repayment income the 2026-27 compulsory repayment is $3,071; on $120,000 it is $7,571. The HECS repayment calculator gives your own figure, which is the baseline any voluntary payment adds to.
How to make a voluntary repayment
- Get your payment reference number
Sign in to myGov, open ATO online services, then Tax › Accounts › Loan accounts. Your PRN and the voluntary repayment options are shown against the loan. The full path is in find your HECS debt.
- Pay by BPAY or card
BPAY and credit card are the ATO's preferred methods, and both need the PRN so the money lands on the right account. Payments from overseas are also possible through the ATO's standard payment channels.
- Allow processing time
Electronic and Australia Post payments can take up to 4 business days to be received and applied; cheques take longer. The payment counts when processed, not when you hit send.
- Clearing the whole debt? Pay before you lodge
If you lodge your return first, a compulsory repayment can be raised on your notice of assessment even though the loan was about to be cleared. Pay, wait for it to process, then lodge.
Timing against 1 June indexation
Indexation hits the balance on 1 June each year; the June 2026 rate was 2.8%. Money you were going to pay anyway is worth more before that date: a $5,000 payment processed in mid-May avoids $140 of indexation on the amount cleared, and on a $20,000 payoff the saving is $560. The same payment on 2 June saves nothing until the following year. The practical deadline is earlier than the calendar one: with up to 4 business days of processing, a late May payment is a gamble. How the rate is set, and the full history, is in HECS indexation.
When early payoff stacks up, and when it does not
There is no universal answer, and this is general information rather than personal advice. The honest ledger looks like this.
Points in favour
- A small remaining balance cleared before 1 June skips a final round of indexation
- Once the loan is gone, the extra payslip withholding stops, lifting take-home pay
- Some lenders count a HELP debt against borrowing capacity when assessing a mortgage
- Guaranteed saving equal to the indexation rate, 2.8% for June 2026, with zero risk
Points against
- The money is gone: voluntary repayments are not refundable if plans change
- No discount applies, and indexation is modest by the standards of most consumer debt
- Compulsory repayments will clear the loan anyway while you earn above the threshold
- Debts with real interest rates, or an offset account, may beat a 2.8% saving
- Repayments you make yourself are not tax deductible
The pattern that tends to make sense: paying out a nearly finished loan just before 1 June or just before lodging, so the withholding stops and the last indexation round never lands. The pattern that tends not to: drip-feeding voluntary payments mid-year while carrying credit card or car loan debt that charges many times the indexation rate. Where the extra withholding actually sits in your pay is visible in the take-home pay calculator; once the debt is cleared, lodge a new withholding declaration with your employer so the deductions stop.
Check the 20% reduction before paying a lump sum
The one-off 20% cut was calculated on balances at 1 June 2025 and processed from December 2025, with 2025 indexation recalculated on the reduced amount. If your mental figure for the debt predates that, it is too high. Accounts that ended up in credit after the reduction have been refunded, and the ATO notes that some repayments made by card may need a manual refund request. So: open the loan account, read the current balance, then size any voluntary payment against that number, not against an old statement. What the repayment schedule looks like from here is covered in HECS repayment rates.
Salary packaging voluntary repayments
Some employers let you salary package loan repayments, paying them from pre-tax salary. The ATO's conditions: the payments must be made by BPAY, credit card or direct credit, and they must stop as soon as the loan is cleared. Packaging does not switch off compulsory repayments either; if your repayment income is above the threshold, the assessment repayment still applies. The arrangement can also create a fringe benefit for your employer, with FBT consequences on their side, and employer-paid repayments may be deductible to them. Weigh the package against a plain pay rise with the salary sacrifice calculator before signing anything.
Frequently asked questions
How do I make a voluntary HECS repayment?
Is there a discount for paying HECS early?
Do compulsory repayments stop if I make voluntary payments?
When is the best time to make a voluntary repayment?
Can I get a voluntary repayment refunded?
Are voluntary HECS repayments tax deductible?
Should I pay off HECS or invest the money instead?
Does paying early change my take-home pay?
Sources and further reading
- ATO: Voluntary repayments (payment methods, timing and salary packaging; accessed 28 July 2026)
- ATO: Study and training loan indexation rates
- ATO: View your study loan account online (PRN location and 20% reduction refunds)
Related resources
HECS Repayment Calculator
Your compulsory repayment on any salary
Open →HECS Indexation
The 1 June mechanics and rate history
Open →Find Your HECS Debt
Locate your balance and PRN in myGov
Open →
Narelle Hartigan is a CPA-qualified tax accountant with over a decade of experience in Australian personal taxation and payroll. She founded PAYG Calculator Australia to make tax withholding easy for every Australian worker to understand.