How it's calculated
Since 2025–26, compulsory study loan repayments use a marginal system: you repay a share of the income above the threshold, not a percentage of your whole income. It covers HELP (HECS-HELP and FEE-HELP), VET Student Loans, Student Start-up Loans, Australian Apprenticeship Support Loans and the Financial Supplement.Federal Register of Legislation
- Thresholds for 2026–27. Nothing is due up to $69,528 of repayment income. Above that you repay 15% of each dollar up to $129,717, and 17% of each dollar above it, but never more than 10% of your whole repayment income.
- Indexation. The Act sets $67,000 and $125,000 for 2025–26 and indexes both each year by average weekly earnings published by the ABS, rounded down to the dollar. That gives the 2026–27 figures above, which match the ATO's withholding coefficients for study loans.Australian Bureau of Statistics
- Repayment income is taxable income plus reportable fringe benefits, reportable super contributions (such as salary sacrifice), net investment losses and exempt foreign employment income.
- From your pay. Your employer withholds an extra amount each pay using Schedule 8 of the ATO's withholding instrument. That is a prepayment: the compulsory repayment is worked out when you lodge your return, and any difference is refunded or added to your bill.Australian Taxation Office
The formula
- Repayment income (RI) = taxable income + reportable fringe benefits + reportable super + net investment loss + exempt foreign income.
- If RI ≤ $69,528: repayment = 0.
- Otherwise: marginal amount = 15% × (min(RI, $129,717) − $69,528) + 17% × max(0, RI − $129,717).
- Repayment = the least of the marginal amount, 10% × RI and your remaining loan balance.
Worked example
With repayment income of $90,000 the compulsory repayment is $3,071, which is 3.4% of income. If that is all salary paid fortnightly, about $118 is withheld each fortnight.
| Line | Per year |
|---|---|
| Taxable income | $90,000 |
| Repayment income | $90,000 |
| Compulsory repayment | $3,071 |
| Balance left after repayment | $26,929 |
At $150,000 the repayment rises to $12,476 because the 17% rate applies above the second threshold.
| Line | Per year |
|---|---|
| Taxable income | $150,000 |
| Repayment income | $150,000 |
| Compulsory repayment | $12,476 |
| Balance left after repayment | $37,524 |
Assumptions and limitations
- No repayment is due if a Medicare levy family reduction applies to you (for example, a couple on low combined income); the income tax calculator takes this into account; the pay calculator, which has no family inputs, does not.
- Indexation of your balance on 1 June and voluntary repayments are not modelled.
- Overseas debtors repay on worldwide income through a separate levy; the calculation here uses Australian repayment income only.
- The per-fortnight figure assumes all your income is salary from one employer with the tax-free threshold claimed.