HECS-HELP Repayment Calculator Australia

What this calculator does

The HECS repayment calculator estimates the compulsory repayment on your study loan under the marginal system that applies from the 2025-26 year. It shows three things at once: the repayment for the year, the effective repayment rate that figure represents against your income, and a rough sense of how many years it would take to clear your remaining balance if things stayed roughly the same.

For anyone carrying a HELP debt, these numbers turn an abstract balance into a plan. You can see what will come out this year, how heavily it weighs on your income, and when the debt might realistically be gone.

How the marginal system works

The important change to understand is the shift to marginal repayments. Under the older approach, crossing a threshold could apply a percentage to your entire income, so a small pay rise sometimes triggered a jump in the repayment out of proportion to the extra earnings.

The marginal system fixes that. You repay a rate only on the income above each threshold, in the same layered way income tax is calculated. The calculator applies these bands to your repayment income, so the repayment rises smoothly as you earn more, without a sudden cliff at each step.

The three numbers you get

• Compulsory repayment: the amount due for the year based on your repayment income
• Effective repayment rate: that repayment expressed as a share of your income, which is lower than the top marginal rate because only part of your income is charged at it
• Years to clear: an indicative timeline to pay off the balance at a similar income

Seeing the effective rate alongside the repayment is useful, because it corrects a common misunderstanding. The marginal rate on your top slice of income is not the share of your whole income that goes to the debt.

Who should use it

• Recent graduates wanting to know what their first year of repayments looks like
• Anyone getting a pay rise who wants to see the smoother marginal effect
• People planning ahead who want a rough payoff date for their balance
• Budgeters lining up the compulsory repayment with the rest of their take-home pay

Compulsory versus voluntary repayments

The repayment this calculator estimates is the compulsory one: the amount the system requires based on your income for the year. It is not the only way to reduce your balance. You can also make voluntary repayments on top, and doing so brings the debt down faster and shortens the years-to-clear timeline.

Whether extra repayments are worthwhile is a personal judgement. A study debt behaves differently from ordinary borrowing, and money put toward it is money not available for other goals like a deposit, an emergency fund or investing. The calculator helps by showing what the compulsory path looks like, so you can see the gap between where that leaves you and where you would like to be, and decide whether closing it faster is worth the trade-off.

How a pay rise really affects your repayment

One of the clearest benefits of the marginal system is how it treats a rising income. Because only the income above each threshold is charged at the higher rate, earning more never leaves you worse off after the repayment: the extra you keep always outweighs the extra you repay.

That was not always obvious under the older approach, where crossing a threshold could feel like a penalty. Running two income levels through the calculator makes the new behaviour clear. You can see the repayment rise gently as your income grows, and confirm that taking on more work or accepting a raise leaves you ahead, which is a useful thing to know before making that decision.

Things to keep in mind

This is an estimate. The repayment depends on your repayment income for the year, which can include more than salary, and the thresholds and rates are maintained from official figures that can change. The calculator reflects the current marginal structure but cannot capture every personal detail.

The years-to-clear figure is the softest number here. Your balance is adjusted over time under the scheme's indexation rules, and both indexation and your income can move from year to year. Treat the timeline as a guide to plan around, not a promise.

Voluntary repayments, changes in income, and time out of the workforce all shift the picture. If a decision depends on the exact figures, confirm them with the tax authority or a registered agent rather than relying on an estimate alone.

Getting the most from it

Enter your realistic repayment income to see this year's compulsory amount and how much of your income it represents. Try a higher income to watch the marginal system raise the repayment gradually rather than in a jump, which helps when you are weighing a pay rise or extra work.

Then look at the years-to-clear figure as a planning anchor. If you want the debt gone sooner, you can see how a higher income or voluntary contributions would shorten the road, and use that to decide your approach. Revisiting the estimate each year, as your income and balance change, keeps the picture current and helps you track real progress rather than relying on a single snapshot.

This is general information to help you plan and compare, not financial advice.

About This HECS Repayment Calculator

Use this HECS repayment calculator to get an instant, accurate estimate. The figures follow official guidance and every rate and threshold is kept up to date for 2026. Adjust the inputs above to match your situation, or browse all our calculators to plan your next step.