Fact-checked against Department of Education — 20% reduction and ATO — Study loans what’s new on 2026-05-02.
If you have a HECS-HELP debt in 2026, three things are happening to it more or less at once: a one-off 20% reduction is being applied to outstanding balances, a new marginal repayment system replaces the old flat-percentage rules, and the annual 1 June indexation is approaching. The thing is, each of these on its own is significant. Together, they change the maths around HELP debts in ways most borrowers haven’t fully worked through. This guide breaks each one down, then shows how they interact in practice.
The three big HECS-HELP changes hitting Australians in 2026
Essentially, three separate updates are landing in the same period. They’re easier to understand if you treat them as three different things, not one big package.
- The 20% one-off debt reduction — applied based on the loan balance at 1 June 2025, removing roughly $16 billion of HELP debt across more than three million Australians.
- The new marginal repayment system — effective from 1 July 2025, replacing the old flat-percentage repayment rates with a marginal system that only charges repayments on income above the threshold.
- The 1 June 2026 indexation — the annual indexation event, calculated under the lower-of-CPI-or-WPI rule introduced to prevent debt outpacing wage growth.
The general HELP-loan structure these sit on top of is covered in our how HECS-HELP works article, and the eligibility rules are in our HELP loans eligibility article. This piece focuses purely on what’s changed for 2026.
Change 1 — The one-off 20% debt reduction
The federal government legislated a one-off 20% reduction across all outstanding HELP debt balances. The official explanation sits on the Department of Education’s 20% reduction page, and the ATO’s update on its study loans what’s new page.
What the reduction covers
The 20% cut applies to every active HELP variant: HECS-HELP (Commonwealth-supported students), FEE-HELP (full-fee students at approved providers), OS-HELP (study overseas), SA-HELP (student services and amenities fee), and the newer START-UP HELP. It also extends to other study and training loans the ATO administers, including VET Student Loans.
How the cut is calculated
The 20% reduction is taken from your loan balance as it stood on 1 June 2025, before any 2025 indexation was applied. In practice this means:
- If your balance was $40,000 at 1 June 2025, the reduction removes $8,000, leaving $32,000.
- If your balance was $25,000 at 1 June 2025, the reduction removes $5,000, leaving $20,000.
- If your balance was $0 (or you’d already paid off the debt), there’s no reduction — the cut applies to outstanding balances only.
The thing is, the cut is applied before indexation, not after. That ordering matters for the maths in the next sections.
You don’t need to apply
The reduction is automatic. Most balances were processed by the ATO before the end of 2025; more complex situations (loans across multiple categories, deceased estates, transferred debts) may flow through into early 2026. Recipients are notified by SMS, email, or through their myGov inbox once the reduction has been applied to their loan account.
Change 2 — The new marginal repayment system
From 1 July 2025, the way compulsory HELP repayments are calculated changed structurally. The old flat-percentage system has been replaced with a marginal system, and the thing is, the old system used to produce some genuinely strange outcomes that the new one fixes.
What the old system did
Under the old rules, your entire repayment-income was multiplied by a single percentage rate based on which income band you fell into. So a small pay rise that pushed you into a higher band could result in a much bigger compulsory repayment, simply because the higher rate now applied to all your income, not just the portion above the new threshold.
What the new system does
From 1 July 2025, repayments are marginal — only the income above the threshold is charged. The current structure:
- Repayment-income up to $67,000 — no compulsory repayment.
- Repayment-income between $67,001 and $125,000 — repay 15 cents for every dollar of income above $67,000.
- Higher repayment rates apply on income above $125,000, set out on the ATO’s study loan rates page.
In practice, this means a pay rise that crosses a threshold no longer triggers a sudden jump in compulsory repayment for your whole income — it only affects the marginal dollars above the threshold. The repayment is calculated proportionally, the way income tax has worked for years.
The full repayment rules for 2026 are documented on the ATO’s study and training support loans hub.
Change 3 — The 1 June 2026 indexation
Annual HELP indexation hits on 1 June each year. It’s not interest in the conventional sense — it’s an inflation-adjustment that preserves the real value of the debt against rising prices. The full mechanics sit on the StudyAssist indexation page.
How the rate is set
Under rules introduced to prevent debt outpacing wage growth, the annual indexation rate is calculated as the lower of:
- Consumer Price Index (CPI) — measures price changes across a basket of household goods and services
- Wage Price Index (WPI) — measures wage growth across the labour market
Whichever is lower at the relevant measurement period becomes the indexation rate. For 2026, current consensus forecasts suggest the rate will sit somewhere in the 2.5%–3.4% range, with WPI likely the binding figure rather than the higher CPI. The ATO publishes the official rate in May each year.
Who’s affected
Indexation is applied to HELP balances that are at least 11 months old at 1 June. Brand-new debts (loans drawn down within the last 11 months) are exempt from that year’s indexation. Most other balances are indexed.
Worked example
If your post-20%-cut balance is $32,000 and the 2026 indexation rate ends up at 3.0%, the indexation adds approximately $960 — bringing the balance to $32,960 immediately after 1 June 2026. Voluntary repayments made before 1 June reduce the indexed amount, which is why some borrowers time additional payments around late May.
How the three changes interact (worked example)
Let’s walk through the maths for a borrower with a $50,000 HELP balance to see how the three changes stack up.
- 1 June 2025 starting balance: $50,000
- 20% reduction applied: -$10,000 → balance now $40,000
- 1 June 2026 indexation (assume 3.0% WPI rate): +$1,200 → balance now $41,200
- Compulsory repayments through FY 2025-26 (assume taxable income of $90,000): 15c per $ above $67,000 = 15c × $23,000 = $3,450 across the year
By the end of FY 2025-26, this borrower’s balance has dropped from $50,000 to roughly $37,750 ($41,200 minus $3,450 of compulsory repayments). Without the 20% reduction, the same borrower would be sitting around $48,500 — a difference of nearly $11,000 over a single financial year.
The thing to notice is that the 20% reduction does most of the heavy lifting. The marginal repayment system makes ongoing repayments more predictable. Indexation is the recurring drag the system has always had, but the lower-of-CPI-or-WPI cap keeps it from spiralling out of proportion to wage growth the way it sometimes did before the rule change.
What you need to do (or not do)
For the vast majority of borrowers, the answer is “not much” — but a few specific actions are worth checking off.
Confirm the 20% reduction has been applied
Sign in to myGov and check your ATO loan account. The 20% reduction should be visible as a separate transaction. If you held a HELP debt at 1 June 2025 and the reduction hasn’t appeared, contact the ATO directly — most cases were processed by end of 2025 but more complex situations can run into early 2026.
Update your TFN declaration if income has changed
The new marginal repayment system means accurate withholding matters more. If your income has changed materially, lodge an updated TFN declaration with your employer so PAYG withholding aligns with actual repayment liability. The general TFN process is covered in our TFN article.
Consider voluntary repayments before 1 June
Voluntary repayments made before 1 June reduce the balance that gets indexed. For borrowers with cash to spare and a desire to clear the debt faster, late May is the best window for voluntary payments. Whether that’s worth it financially depends on the projected indexation rate vs the alternative use of the same money.
Living overseas? Lodge worldwide income
Australians living overseas with HELP debts must report worldwide income to the ATO each year and make compulsory repayments based on that income. Missing the disclosure can lead to penalties even if you’re not currently an Australian tax resident.
Common myths and misunderstandings
Some things people believe about the 2026 changes that aren’t quite right:
Myth: The 20% cut applies to all my future HELP loans too
It doesn’t. The 20% reduction is a one-off applied to the balance at 1 June 2025. New HELP loans drawn down after that date follow the standard rules — they accrue indexation each year and are repaid through the marginal system, but they don’t get a 20% cut.
Myth: Indexation has been abolished
Also no. Indexation still happens every 1 June. What changed (under earlier reforms, not the 2026 update) is the rule that caps it at the lower of CPI or WPI. So the worst of the indexation spikes that hit during high-inflation periods don’t fully pass through any more — but indexation itself remains.
Myth: I should pay off my whole balance now
Sometimes yes, often no. Whether to pay off HELP early depends on the indexation rate vs alternative uses of the money (savings interest, super contributions, mortgage offset, investment returns). For high-debt borrowers in a financial position to clear it, paying off has a clear psychological win. For most others, the marginal repayment system handles repayment automatically without much pain.
Myth: I’ll get a refund if my repayments exceeded the 20% cut amount
No. The 20% reduction applies to the balance, not to past repayments. If you’ve already cleared your debt, there’s nothing to reduce.
Frequently asked questions
How is the 20% HECS-HELP debt reduction calculated?
The 20% reduction is calculated based on what your HELP debt balance was at 1 June 2025, before any indexation was applied. For example, a $40,000 balance at 1 June 2025 has $8,000 removed, leaving $32,000 before indexation. The Department of Education has stated the reduction is automatic — recipients don’t need to apply, and most reductions are processed by the ATO with notifications via SMS, email, or myGov inbox.
When does HECS-HELP indexation hit in 2026?
Indexation is applied on 1 June 2026. The rate is announced by the ATO in May and applies to all HELP debts at least 11 months old at that date. The 2026 rate is calculated as the lower of the Consumer Price Index (CPI) and the Wage Price Index (WPI), under rules introduced to ensure debt growth doesn’t outpace wage growth.
How does the new marginal HELP repayment system work?
From 1 July 2025, HELP repayments are calculated using a marginal system — only income above $67,000 attracts a repayment rate. Between $67,001 and $125,000, you repay 15 cents for every dollar over $67,000. This replaced the flat-percentage system where the entire taxable income was multiplied by a single rate, often producing a much larger compulsory repayment for borrowers just above each old threshold.
What this all adds up to in 2026
For most borrowers, 2026 is a meaningfully better year for HELP debt than recent years have been. The 20% reduction takes a substantial chunk off outstanding balances. The marginal repayment system removes the strange threshold-jump effects of the old flat-percentage rules. And the lower-of-CPI-or-WPI rule keeps indexation from spiking the way it sometimes did during high-inflation periods.
None of this changes the underlying logic of HELP — it’s still a long-term loan that’s repaid through the tax system based on income. But the 2026 framework is materially more generous than what borrowers were dealing with even two years ago. That’s worth knowing, and it’s worth checking your own myGov balance to see exactly where the 20% cut has landed for your situation.
For the broader rules and lodgment context that surrounds HELP loans, the tax return lodgment article and the Australian tax system overview on this site cover the surrounding territory.