HECS Repayment Threshold 2026: 7 Rules & Real Examples
The HECS repayment threshold is the annual repayment income level above which compulsory HELP repayments begin — approximately AUD 54,000 to 56,000 in recent financial years, and indexed every year. From 2025-26 a marginal system applies, so you repay a percentage only of the income above the threshold, not of your whole salary.
That single change matters more than most people realise. Under the old rules, earning one dollar over a bracket boundary could trigger a repayment calculated on your entire income, producing a jarring cliff. The marginal method removes that cliff. This guide explains how the threshold is defined, what income actually counts, how the marginal calculation works with worked examples, and how PAYG withholding interacts with your final tax assessment. Figures marked "approximately" are indicative as of 2026 and change with annual indexation — always confirm the current figure with the ATO before relying on it, or run the numbers through our HECS debt repayment calculator.
What the HECS repayment threshold actually is
The threshold is not a salary figure and it is not your taxable income. It is a line drawn against your repayment income, a broader ATO measure designed to stop people from reducing compulsory repayments through salary packaging, negatively geared investments or heavy voluntary super contributions.
Three points that trip people up:
- It is indexed annually. The threshold moves each financial year in line with wage or price indexation, so the figure you memorised two years ago is out of date.
- It applies to the financial year, not the pay cycle. Your employer withholds based on a projection from each pay, but the real test happens once, at assessment, against your full-year repayment income.
- It is per person, not per household. Your partner's income does not raise or lower your HECS-HELP threshold.
What counts as repayment income
Repayment income is taxable income plus several add-backs. This is the most common reason someone is surprised by a HECS bill: their taxable income sat below the threshold, but their repayment income did not.
| Component | Included in repayment income? | Why it matters |
|---|---|---|
| Taxable income (salary, wages, business income after deductions) | Yes — the base figure | Work-related deductions genuinely lower it |
| Reportable fringe benefits | Yes — added back | Novated car leases and packaged benefits commonly push people over the line |
| Net investment losses (including rental property losses) | Yes — added back | A negatively geared property does not reduce your HECS obligation |
| Reportable superannuation contributions (salary sacrifice and personal deductible contributions) | Yes — added back | Sacrificing into super lowers tax but not repayment income |
| Employer compulsory super guarantee | No | Standard SG is not "reportable" and is excluded |
| Tax-free government payments and most tax offsets | No | Offsets reduce tax payable, not the income measure |
| Your partner's income | No | HELP repayment is assessed individually |
A practical example: someone on a $52,000 salary with a $6,000 reportable fringe benefit from a novated lease has a repayment income of about $58,000 — above the threshold — even though their payslip suggests otherwise.
How the marginal repayment system works from 2025-26
Under the marginal system, the calculation runs in two steps:
- Work out how much of your repayment income sits above the threshold.
- Apply the relevant repayment rate to that excess only, stepping up through higher rates as income rises into higher bands.
Compare this to the old approach. Previously, crossing a boundary meant the rate applied to every dollar you earned. The difference at the margin is dramatic.
| Scenario (illustrative, threshold assumed ≈ $56,000) | Old method: rate × total income | Marginal method: rate × income above threshold | Effect of one extra dollar earned |
|---|---|---|---|
| Repayment income exactly at the threshold | Nil | Nil | No repayment either way |
| $100 above the threshold | Repayment calculated on the full ~$56,100 — a large step | Repayment calculated on $100 only — a few dollars | Cliff removed under the marginal method |
| $10,000 above the threshold | Calculated on ~$66,000 | Calculated on $10,000 | Materially smaller compulsory repayment |
| Crossing into a higher rate band | The higher rate re-applied to all income | The higher rate applies only to the slice in that band | Smooth, predictable increase |
The dollar figures above are illustrative only, built on an assumed threshold of approximately $56,000 to show the shape of the calculation. Actual thresholds and rate bands are set by legislation and indexed each year — check the current ATO schedule.
The headline consequence: a pay rise or a few extra shifts can no longer trigger a disproportionate HECS jump. The marginal design means your compulsory repayment now scales with the income above the line, not with your entire earnings.
Working out your own number
The mechanics are simple enough to do on paper:
- Start with taxable income.
- Add reportable fringe benefits, net investment losses and reportable super contributions.
- Subtract the current threshold.
- Apply the rate that corresponds to each band of the remainder.
The fiddly part is the banding, because each slice attracts its own rate. If you would rather not do it by hand, our free HECS debt calculator handles the banding and the add-backs for you.
PAYG withholding versus your actual liability
Your employer withholds extra tax each pay period once you tick the HELP box on your TFN declaration. That withholding is an estimate based on annualising the current pay. It is not the debt being paid down in real time — the amount sits in your general tax withheld balance until assessment.
| Situation | What PAYG does | What happens at assessment | Typical outcome |
|---|---|---|---|
| Steady salary above the threshold all year | Withholds close to the correct amount | Compulsory repayment applied to your debt | Small refund or small bill |
| Part-year work (graduate starting mid-year) | Withholds as if the high pay ran all year | Full-year repayment income may be under the threshold | Over-withheld — refund likely |
| Second job or irregular overtime | Each employer withholds on its own slice; combined income ignored | Combined repayment income assessed once | Commonly under-withheld — bill likely |
| Salary packaging or novated lease | Fringe benefits generally not captured in withholding | Benefits added back to repayment income | Under-withheld — bill likely |
| Rental property running at a loss | Not reflected in withholding at all | Loss added back, raising repayment income | Under-withheld — bill likely |
| Did not declare HELP debt to employer | Nothing withheld for HELP | Full compulsory repayment falls due at once | Largest bills come from here |
Indexation, timing and the order things happen
Two separate annual events affect your balance, and confusing them causes a lot of unnecessary panic:
- Indexation increases the outstanding balance to maintain its real value. HELP debts do not attract interest in the conventional sense; indexation is the mechanism instead.
- Your compulsory repayment is worked out at assessment and applied to the balance after your return is processed.
Because withheld amounts are not credited to the debt until assessment, a balance can appear to have grown even though you have had money withheld all year. It has not been lost — it is applied when the return is lodged. Lodging promptly shortens the gap.
Voluntary repayments
Voluntary repayments are optional, can be made at any time, and reduce the balance immediately rather than waiting for assessment. Whether they are worth prioritising over other debts depends on your indexation rate versus your alternative uses of the money — that is a personal financial decision and worth discussing with a registered tax agent or licensed adviser.
Common mistakes worth avoiding
- Assuming taxable income is the test. It is not — the add-backs are what catch people.
- Not telling your employer about the debt. Nothing is withheld, and the entire compulsory repayment lands in one assessment.
- Forgetting the second job. Each employer withholds in isolation; the ATO assesses the total.
- Assuming last year's threshold applies. Indexation moves it every financial year.
- Expecting the debt to shrink mid-year. Compulsory repayments are credited at assessment, not per pay.
Frequently asked questions
What is the HECS repayment threshold right now?
It has sat in the region of approximately AUD 54,000 to 56,000 in recent financial years and is indexed annually, so the exact figure changes each 1 July. Confirm the current-year amount on the ATO website before relying on it for planning.
Do I repay a percentage of my whole income once I cross the threshold?
No — not from 2025-26 onwards. The marginal system applies the repayment rate only to the portion of your repayment income above the threshold, which removes the old cliff effect at the boundary.
Does salary sacrificing into super reduce my HECS repayment?
No. Reportable superannuation contributions are added back when calculating repayment income. Salary sacrifice can reduce income tax while leaving your compulsory HELP repayment unchanged, or even leaving you under-withheld.
Why did I get a tax bill when my employer withheld extra all year?
Usually because your actual repayment income was higher than the amount withholding was based on — a second job, overtime, reportable fringe benefits or a negatively geared property will all do it. Withholding is an estimate; assessment is the real calculation.
Does my partner's income affect my HECS repayments?
No. Compulsory HELP repayments are assessed on your individual repayment income. Household or spouse income is irrelevant to the threshold test.
Check your own figures
Because repayment income includes add-backs and the rate now applies marginally, estimating by eye is unreliable. Enter your salary, fringe benefits, investment losses and super contributions and let the tool do the banding. Calculate your repayment in seconds
Frequently asked questions
What is the HECS repayment threshold right now?
It has sat in the region of approximately AUD 54,000 to 56,000 in recent financial years and is indexed annually, so the exact figure changes each 1 July. Confirm the current-year amount on the ATO website before relying on it for planning.
Do I repay a percentage of my whole income once I cross the threshold?
No - not from 2025-26 onwards. The marginal system applies the repayment rate only to the portion of your repayment income above the threshold, which removes the old cliff effect at the boundary.
Does salary sacrificing into super reduce my HECS repayment?
No. Reportable superannuation contributions are added back when calculating repayment income. Salary sacrifice can reduce income tax while leaving your compulsory HELP repayment unchanged, or even leaving you under-withheld.
Why did I get a tax bill when my employer withheld extra all year?
Usually because your actual repayment income was higher than the amount withholding was based on - a second job, overtime, reportable fringe benefits or a negatively geared property will all do it. Withholding is an estimate; assessment is the real calculation.
Does my partner's income affect my HECS repayments?
No. Compulsory HELP repayments are assessed on your individual repayment income. Household or spouse income is irrelevant to the threshold test.
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Open the calculatorWritten and reviewed by the HECS Debt Calculator editorial team. Facts checked against primary sources; see the reference above.