HECS Indexation 2026: How Much Did Your Debt Grow?

Use the Velofy HECS repayment calculator to work out your exact repayment under the marginal system in under 30 seconds, for 2026–27 or for your 2025–26 return. Enter your income and HECS balance — the calculator returns your annual repayment, monthly PAYG withholding, payoff timeline at current indexation, and whether voluntary repayments make financial sense at today's savings rates. Below: the ATO bands for both years, how the 20% debt cut was applied, and worked examples at typical Australian incomes.

HECS 2026: Indexation, Threshold and Repayment at a Glance

HECS-HELP indexation for 2026 is 2.8%, applied to your remaining balance on 1 June 2026. Two threshold sets are in play, and mixing them up is the most common mistake: income you earn in 2026–27 is assessed from $69,528, while your 2025–26 tax return is assessed from $67,000. Both use the same marginal structure, which replaced the old debt cliff where crossing a threshold triggered repayment on your whole income. Separately, the government applied a flat 20% reduction to all outstanding HELP balances as at 1 June 2025 — auto-applied, no application required.

Current year: 2026–27 repayment bands (income you are earning now)

Worked example on the current-year bands: on $85,000, you repay 15% × ($85,000 − $69,528) = 15% × $15,472 = $2,321 per year, or about $193 a month withheld through PAYG. The same income assessed on the 2025–26 bands would be $2,700 — the threshold lift is worth roughly $379 a year to someone at that income.

Your 2025–26 return: the bands that apply to it

Your 2025–26 tax return is assessed on the older bands below. Use this table for that return; use the table above to check what your employer is withholding from your pay in 2026–27.

HECS indexation for 2026 is 2.8% (lower of CPI/WPI), effective 1 June 2026. The 20% debt reduction was applied to balances as at 1 June 2025, before indexation. Marginal repayment system in force from 1 July 2025. Source: ato.gov.au Study and training loan indexation rates; Department of Education Study Assist.

Priya is 27, a registered nurse in Melbourne earning $85,000 a year. On 1 June 2025, her HECS debt stood at $34,000. After the law took effect in August 2025, the ATO applied a flat 20% reduction to every outstanding HECS-HELP balance — automatically, with no application. It began applying the cut in November 2025. Priya's debt dropped by $6,800 to $27,200. She did not know until she checked myGov.

The reduction is real and significant. But for most Australians it is only one part of a bigger picture — new repayment thresholds have also changed how much you pay each year, indexation was 2.8% on 1 June 2026, and HECS debt has a direct and often overlooked impact on home loan borrowing power. Here is everything that changed, what it means for your money, and what does and doesn't lower your repayments.

What the 20% HECS Reduction Actually Means

The 20% reduction was applied to HELP balances as at 1 June 2025, before that year's 3.2% indexation was added. The sequencing matters: the cut came first, then the 2025 indexation was recalculated on the lower balance — and the 2.8% added on 1 June 2026 was charged on the lower balance too.

Your yearly compulsory repayment depends on your income, not your balance, so the cut doesn't change it; the debt is paid off sooner. The reduction was automatic — you did not need to apply, lodge anything, or contact the ATO. Your updated balance is visible at myGov → ATO → Loans → Study and training loan accounts.

Priya's example: Her $34,000 reduced to $27,200 — saving $6,800 in principal. At her 2026–27 repayment of $2,321 a year, that's nearly three years of repayments she won't have to make.

The New Marginal Repayment System — No More Debt Cliff

From the 2025–26 financial year, HECS repayments switched to a marginal repayment system — one of the most significant structural improvements to the scheme in years.

Under the old system, which applied up to 2024–25, crossing an income threshold triggered a repayment rate on your entire income, so a small pay rise could cost hundreds of dollars more in HECS repayments that year — a cliff effect that penalised overtime, bonuses, and promotions. The new system calculates repayment only on income above each threshold — just like income tax.

Priya's repayment calculation: Her $85,000 salary sits in the first band. For her 2025–26 return, the repayment is 15% × ($85,000 − $67,000) = 15% × $18,000 = $2,700 ($225 a month via PAYG withholding). In 2026–27 it's 15% × ($85,000 − $69,528) = $2,321 (about $193 a month).

Comparing two job offers as a HECS-affected graduate? The headline salary isn't the right number. A $95,000 offer with 12% super and a $90,000 offer with 13% super look $5,000 apart. After tax and HECS ($3,821 vs $3,071 in 2026–27), the take-home gap is about $2,650 a year, and the 13% offer pays $300 a year more into super, which compounds over a career. The Velofy Job Offer Comparison Calculator runs base + super% + bonus likelihood + HECS impact + 30-year retirement-balance gap side-by-side so the trade-off becomes explicit.

One trap for higher earners: if your income crosses $105,000 (singles, 2026–27) you also hit the Medicare Levy Surcharge of 1.00% on top of HECS — a separate tax that only applies if you don't hold private hospital cover. A graduate earning $110,000 in 2026–27 with no hospital policy repays $6,071 HECS (15% × $40,472 above the $69,528 threshold) plus an extra $1,100 MLS — a combined $7,171. The $1,100 MLS portion is avoidable with complying private hospital cover. See the tiers for both years in the Medicare Levy Surcharge thresholds guide, and whether basic hospital cover would cost less than the surcharge at your income.

HECS Indexation 2026 — The Exact Rate, Formula, and Dollar Cost

The HECS indexation rate for 2026 is 2.8% (ATO). On a $27,200 balance, that adds approximately $762 to your debt on 1 June 2026, before any compulsory repayment offsets it.

How HECS indexation is calculated in 2026

Since 1 June 2023, HECS-HELP indexation is capped at the lower of CPI or the Wage Price Index (WPI) — a structural fix that replaced the CPI-only rule, which had caused the damaging 7.1% indexation spike in 2023. The change was backdated, so the 2023 rate became 3.2% and the 2024 rate 4.0% (down from 4.7%). The exact formula:

1. ATO calculates the 12-month CPI to the March quarter (latest ABS release before 1 June)
2. ATO calculates the 12-month WPI to the March quarter (latest ABS release before 1 June)
3. The lower of the two is applied to every outstanding HELP, HECS, VET Student Loan, OS-HELP, SA-HELP, and Australian Apprenticeship Support Loan balance held on 1 June
4. Indexation is applied BEFORE any tax-time compulsory repayment is netted off

For 2026, the ATO published an indexation rate of 2.8% — the lower of the CPI and WPI series, calculated from ABS figures over the two years to the March 2026 quarter. The official rate is confirmed by the ATO at ato.gov.au.

HECS indexation dollar impact by balance size (2026)

How HECS indexation 2026 compares to other debt

At 2.8%, HECS is one of the cheapest debts available to any Australian — roughly in line with inflation and far below any commercial loan. A credit card balance of $27,200 at 20% interest costs $5,440 per year. A personal loan at 10% costs $2,720. HECS at 2.8% costs $762. That is why most financial advisers tell graduates to prioritise high-interest debt or a high-interest savings account (the best ongoing rates were about 5.25–5.65% in October 2026) over voluntary HECS repayments.

When does HECS indexation apply each year?

Indexation is applied once per year, on 1 June. The rate applies to your balance as it stood on that date — so a voluntary repayment made on 31 May reduces the balance that gets indexed; a repayment made on 2 June does not. For Australians considering a voluntary top-up, the strategic window is the last week of May.

The annual compulsory repayment (taken via PAYG withholding throughout the year and reconciled at tax time) is netted off AFTER indexation — so your end-of-FY-26 balance is: opening balance × 1.028 − compulsory repayments − any voluntary payments.

Should You Pay Off HECS Early? The Honest Maths

The question every HECS holder asks: should I make a voluntary lump-sum repayment? The maths is straightforward:

• HECS indexation 2026: 2.8% per year
• High-interest savings accounts (October 2026): about 5.25–5.65% a year for the best ongoing rates, mostly with monthly conditions (Canstar, 19 October 2026)
• 12-month term deposits (October 2026): up to about 5.5–5.6% (Canstar and Mozo)
• Diversified share index fund (long-run): 7–10% per year (with volatility)

Savings interest is taxed; the indexation you avoid by paying early isn't. At 5% interest and a 32% tax rate (30% plus the 2% Medicare levy), you keep 3.4% after tax, against 2.8% indexation. So every $10,000 you keep in savings rather than paying off HECS leaves you about $60 a year ahead. Money in a mortgage offset account does better, because it saves your full home loan rate and that saving isn't taxed.

Priya's decision: With a $27,200 balance, a savings account earning 5% pays her $1,360 a year, or about $925 after tax. HECS indexation at 2.8% costs $762. Keeping the money in savings is about $160 a year better. The general conclusion for most people: do not make voluntary HECS repayments while your money earns more than indexation after tax. At the top tax rate (45% plus the Medicare levy), 5% interest leaves about 2.65%, less than indexation, so paying early comes out slightly ahead.

The one exception: If your balance is small enough to clear entirely — say, under $8,000–$10,000 — eliminating the debt removes your compulsory annual repayment obligation immediately. Priya repays $2,321 in 2026–27. If she had only $6,000 remaining, clearing it in one hit would free that $2,321 a year of cash flow straight away. That is a different argument to the pure indexation maths.

HECS and Your Home Loan — The Hidden Borrowing Impact

This is the aspect of HECS that catches first home buyers most off guard. When a bank assesses your home loan serviceability, it includes your compulsory HECS repayment as a recurring monthly expense — exactly like a car loan or credit card minimum. That directly reduces the income available to service a mortgage.

Repayments at 2026–27 rates. Borrowing reduction = the monthly repayment as a loan payment tested at 9.5% (a 6.5% variable rate plus the APRA 3-point buffer; the lowest advertised variable rates were 6.29%–6.50% on 11 October 2026), 30-year principal and interest: roughly 10 times the yearly repayment. Individual bank assessments vary.

Priya's situation: With her $27,200 HECS balance and $85,000 salary, her $2,321 repayment in 2026–27 reduces her borrowing capacity by roughly $23,000. If she used $27,200 of savings to clear the debt, she would add about $23,000 to her maximum loan but have $27,200 less for her deposit. For her, clearing the debt costs more deposit than it adds in borrowing.

Paying off HECS before a home loan helps most when the balance is small compared with the yearly repayment: as a rough guide, less than about 10 times the repayment. On $85,000 income in 2026–27 that means a balance under about $23,000. It also only matters if borrowing power, not your deposit, is what limits the price you can pay. A mortgage broker can model both scenarios before you decide.

Does Extra Super Lower Your HECS Repayments?

No. Many people assume that putting more into super will reduce their HECS repayments. It won't, whether you salary sacrifice or make a personal contribution and claim it as a tax deduction. The ATO works out HECS on your repayment income: your taxable income plus your reportable super contributions, which include both salary-sacrificed super and personal contributions you claim as a deduction. Whatever the contribution takes off your taxable income is added straight back.

Priya's example: She puts $5,000 into her super fund during 2026–27 and claims it as a tax deduction. Results for 2026–27:

• Taxable income: $85,000 → $80,000
• HECS repayment income: $80,000 + $5,000 added back = $85,000
• HECS repayment: unchanged at $2,321
• Income tax saving: $5,000 × (32% − 15% super tax) = $850 (her 30% tax rate plus the 2% Medicare levy)

The tax saving is real; a HECS saving isn't. What does lower your repayment income is an ordinary work-related deduction, such as tools, union fees or work travel, because those aren't added back. Investment losses, such as a negatively geared rental, are added back.