HECS HELP Repayment Calculator (AU)

How HELP loans actually work

HECS-HELP, FEE-HELP, OS-HELP, SA-HELP, and VET Student Loans are all part of Australia’s federal student loan program (collectively “HELP”). Unlike US/UK student loans which charge interest, HELP loans charge no interest — but the balance is indexed each year by inflation. Repayment is income-contingent: if you earn under the threshold, you pay nothing; above it, repayments are deducted from your salary automatically by your employer (and reconciled at tax time).

The structure is genuinely progressive — students from low-income backgrounds can study at world-class universities and only repay if they earn enough afterward. Income below A$54,435 (2024-25) means zero compulsory repayment. The repayment rate then steps up gradually as income rises, capping at 10% of total income above A$159,664. Critically: the rate applies to your full income, not just the portion above the threshold (unlike marginal tax brackets).

The math example: if you earn A$75,000, you fall in the 3.5% bracket. Your annual compulsory repayment is A$75,000 × 3.5% = A$2,625. If you earn A$100,000, you fall in the 5.5% bracket — A$100,000 × 5.5% = A$5,500. The whole-of-income approach means small income increases can trigger meaningful repayment jumps when crossing bracket boundaries.

The 2024-25 repayment brackets

For the 2024-25 financial year (1 July 2024 – 30 June 2025), the ATO publishes the following compulsory repayment thresholds. Rates apply to your full repayment income — not marginal.

Note that “repayment income” is broader than taxable income. It equals taxable income + reportable fringe benefits + reportable super contributions + net investment loss + exempt foreign employment income. The ATO uses repayment income (not just salary) precisely to prevent income-shifting strategies that would otherwise let high-earners reduce HELP repayments through salary sacrifice.

Indexation — the hidden cost

HELP loans don’t charge interest. But every 1 June, the outstanding balance is indexed by an inflation-linked rate. Historically this was CPI (Consumer Price Index). After the politically controversial 2023 indexation of 7.1% (the highest since 1990), the Albanese government changed the rule in 2024: indexation is now the lower of CPI or WPI (Wage Price Index). This was applied retrospectively to 2023, reducing the 2023 indexation to 3.2% and giving most borrowers a credit on their accounts.

Indexation rates for recent years:

• 2020: 1.8%
• 2021: 0.6%
• 2022: 3.9%
• 2023: 7.1% (later capped to 3.2% after reform)
• 2024: 4.0% (lower of CPI or WPI)
• 2025: Expected 3-4% range

The indexation timing matters. The 1 June indexation is applied to the balance as of that date. Your compulsory repayment from the previous financial year doesn’t reduce the indexed amount because it’s only credited to your HELP balance after your tax return is processed (typically July-October). This creates a quirk: if you make voluntary repayments before 1 June, they immediately reduce the indexed balance.

Voluntary repayments — when they make sense

When voluntary repayment helps

• High balance, low income, high indexation. If your debt grows faster than your compulsory repayments shrink it, voluntary repayments stop the negative spiral. Use the calculator — if it shows “balance grows forever,” voluntary repayment is essential.
• Just before 1 June (indexation date). Reducing your balance before indexation saves you indexation on that amount. A A$5,000 voluntary repayment on 31 May saves A$200 of indexation at 4%.
• You won’t earn high income for years. If you’re planning a career break, sabbatical, or move to a lower-paying field, voluntary repayments now (while earning higher income) lock in progress.
• Going overseas long-term. Australians overseas still owe HELP repayments based on worldwide income (since 2017), but enforcement is uneven. Many overseas residents prefer to clear the debt to simplify their tax position.

When voluntary repayment is wasteful

• You have other debt at higher effective rates. Credit card at 22% > HELP indexation at 4%. Pay the credit card first, every time.
• You’re not maxing employer super match. Capturing employer contributions is usually a 100% return — better than 4% indexation savings.
• You could invest the money for higher returns. Investment returns at 8-10% historical outperform 4% HELP indexation savings (though indexation is “guaranteed” while market returns are not).
• You expect income to drop or pause. The beauty of HELP is income-contingent repayment. If you’re planning maternity leave, retraining, or career uncertainty, keeping liquidity matters more than accelerating HELP payoff.
• Tax deduction unavailability. HELP voluntary repayments are NOT tax-deductible (unlike investment loan interest). The effective cost is the full dollar amount.

HECS HELP Calculator FAQ

What is “repayment income” exactly?

The ATO defines repayment income as: taxable income + reportable fringe benefits + reportable super contributions + net investment loss + exempt foreign employment income. This is broader than just salary or taxable income. It catches salary sacrifice arrangements that would otherwise let high earners artificially reduce their compulsory HELP repayment. Most employed Australians: repayment income = salary + reportable items.

How does the calculator handle income changes over time?

It assumes income stays constant in real terms (so rate stays constant). In reality your income probably rises over your career, which means your repayment rate increases too, accelerating payoff. The calculator is therefore conservative — actual payoff is usually faster than shown. For a more accurate projection, recalculate at each major income change.

Why does the calculator show “balance grows forever” sometimes?

When your annual compulsory repayment is less than your annual indexation cost (e.g., A$1,000 repayment vs A$1,200 indexation on a A$30K balance at 4%), the balance grows faster than you can reduce it. To make progress, you need to either earn more (higher repayment) or make voluntary repayments. The calculator flags this scenario so you know action is required.

Are HELP repayments deducted from my pay throughout the year?

Yes, if you earn above the threshold. Your employer withholds an extra amount each pay cycle (like PAYG tax) and forwards it to the ATO. At tax time, the actual obligation is calculated based on full-year income, and any shortfall/refund is reconciled with your tax return. This means your monthly take-home is lower than it would be without HELP, even if you don’t see a separate “HELP” line item on your payslip.

What happens if I move overseas?

You still owe HELP repayments based on your worldwide income (since 2017). You’re required to register your overseas residence with the ATO. Enforcement varies — overseas residents are not subject to PAYG withholding, so compliance depends on voluntary annual reporting. Many overseas residents continue making repayments through tax returns; some don’t, accepting the indexation risk.

Can my HELP debt be inherited or transferred?

No. HELP debts are discharged on death — they’re not passed to the estate or family. This is one reason the program is genuinely progressive: the financial risk falls on the government, not on the borrower’s family. Unlike US student loans (which can be passed to co-signers), HELP creates no inheritance liability.

What if I can’t make my compulsory repayment?

You don’t have to — that’s the point of income-contingent repayment. If your income drops below the threshold in any year, no compulsory repayment is due that year. Below-threshold income protects you completely. The balance still gets indexed annually, but no enforcement action occurs.

Does the calculator account for the 2024 indexation reform?

Yes — the indexation rate input is yours to set. For current planning, use 3-4% (the post-reform CPI-or-WPI cap). Historical scenarios can use higher values. The reform applies prospectively to 2024+, plus retrospectively to 2023 (which was re-indexed at 3.2% instead of 7.1%).