Fact-checked against Department of Education — 20% reduction and ATO — Study loans what’s new on 2026-05-02.
Got a HECS-HELP debt in 2026? Three things are happening to it at roughly the same time. A one-off 20% cut is coming off outstanding balances. A new marginal repayment system has replaced the old flat-percentage rules. And the annual 1 June indexation is on its way. Each one matters on its own. Stacked together, they change the maths on HELP debt in ways most borrowers haven’t sat down and worked through. This guide takes each change one at a time, then shows you how they play out together.
The three big HECS-HELP changes hitting Australians in 2026
Three separate updates are landing in the same window. They’re far easier to follow if you treat them as three distinct things rather than one big bundle.
- 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.
Here’s how the three line up side by side before we dig into each one:
| Change | When it applies | What it does to your balance | Action needed? |
|---|---|---|---|
| 20% one-off cut | Based on balance at 1 June 2025 | Removes 20% of the outstanding balance | No – automatic |
| Marginal repayment system | From 1 July 2025 | Charges repayments only on income above $67,000 | Check withholding if income changed |
| Annual indexation | 1 June 2026 | Adds the lower of CPI or WPI to balances 11+ months old | Optional voluntary payment before 1 June |
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 has legislated a one-off 20% cut across all outstanding HELP balances. The official write-up sits on the Department of Education’s 20% reduction page, with the ATO’s version on its study loans what’s new page.
What the reduction covers
The cut hits 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 reaches other study and training loans the ATO administers, including VET Student Loans. If you’ve got one of these, you’re covered.
How the cut is calculated
The 20% comes off your loan balance as it stood on 1 June 2025, before any 2025 indexation was applied. So:
- 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.
Keep in mind that the cut lands before indexation, not after. That ordering drives the maths in the sections that follow.
You don’t need to apply
The reduction is automatic. Most balances were processed by the ATO before the end of 2025. More tangled cases – loans spread across multiple categories, deceased estates, transferred debts – may flow through into early 2026. You’ll be told once it’s applied, by SMS, email, or a message in your myGov inbox.
Change 2 – The new marginal repayment system
From 1 July 2025, the way compulsory HELP repayments are worked out changed at a structural level. The old flat-percentage system is gone, replaced by a marginal one. And the old system used to throw up some genuinely odd outcomes that the new one fixes.
What the old system did
Under the old rules, your entire repayment-income got multiplied by a single percentage rate, set by whichever income band you landed in. So a small pay rise that nudged you into a higher band could trigger a much bigger compulsory repayment – because the higher rate now applied to all your income, not just the part above the new threshold.
What the new system does
From 1 July 2025, repayments are marginal. Only the income above the threshold gets charged. Here’s 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.
Old system versus new, at a glance:
| Feature | Old flat-percentage system | New marginal system (from 1 July 2025) |
|---|---|---|
| What gets charged | Your whole repayment-income | Only income above $67,000 |
| Effect of crossing a threshold | Higher rate applied to all income – sudden jump | Higher rate applied only to the marginal dollars |
| Repayment on income up to $67,000 | Could apply once a band was reached | Nothing |
| Rate on income $67,001 to $125,000 | Single flat rate on the lot | 15c per dollar over $67,000 |
The upshot: a pay rise that crosses a threshold no longer triggers a sudden jump in compulsory repayment on your whole income. It only touches the marginal dollars above the threshold. The repayment is worked out proportionally, the same way income tax has run 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 lands on 1 June each year. It isn’t interest in the usual sense. It’s an inflation adjustment that keeps the real value of the debt steady as prices rise. The full mechanics sit on the StudyAssist indexation page.
How the rate is set
Under rules brought in to stop debt outpacing wage growth, the annual indexation rate is set 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 rate. For 2026, current consensus forecasts put it 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 applies 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 get indexed.
Worked example
Say your post-20%-cut balance is $32,000 and the 2026 indexation rate lands at 3.0%. Indexation adds about $960, taking the balance to $32,960 right after 1 June 2026. Voluntary repayments made before 1 June reduce the amount that gets indexed, which is why some borrowers deliberately time extra payments around late May.
How the three changes interact (worked example)
Let’s run the numbers for a borrower carrying a $50,000 HELP balance, so you can see how the three changes stack.
- 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 x $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.
Here’s where the difference comes from. The 20% reduction carries most of the load. 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 stops it 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 most borrowers, it’s “not much”. But a handful of specific things are worth checking off. Here they are, roughly in order of what matters most:
- Confirm the 20% reduction has landed – the biggest dollar change, and the one most likely to need chasing if it hasn’t shown up.
- Update your TFN declaration if your income has shifted – keeps your withholding in line with what you actually owe.
- Decide whether a voluntary payment before 1 June is worth it – only matters if you’ve got spare cash and want to cut the indexed amount.
- Lodge worldwide income if you live overseas – non-negotiable if it applies to you, and penalties bite if you skip it.
Confirm the 20% reduction has been applied
Sign in to myGov and check your ATO loan account. The 20% reduction should show up as a separate transaction. If you held a HELP debt at 1 June 2025 and it hasn’t appeared, contact the ATO directly. Most cases were sorted by the end of 2025, but the messier ones can run into early 2026.
Update your TFN declaration if income has changed
With the new marginal system, accurate withholding matters more than it used to. If your income has shifted materially, lodge an updated TFN declaration with your employer so PAYG withholding lines up with your 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 shrink the balance that gets indexed. If you’ve got cash to spare and you want the debt gone faster, late May is the window. Whether it’s worth doing comes down to the projected indexation rate against whatever else you’d do with the same money.
Living overseas? Lodge worldwide income
Australians overseas with HELP debts have to report worldwide income to the ATO each year and make compulsory repayments based on it. Skip the disclosure and you can cop penalties, even if you’re not currently an Australian tax resident.
Common myths and misunderstandings
A few 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 get 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 no longer fully pass through. But indexation itself is still there.
Myth: I should pay off my whole balance now
Sometimes yes, often no. Whether to clear HELP early depends on the indexation rate against other uses of the money – savings interest, super contributions, a mortgage offset, investment returns. For high-debt borrowers in a 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 left 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 noticeably better year for HELP debt than the recent run of years. The 20% reduction takes a real chunk off outstanding balances. The marginal repayment system clears out 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 rewrites the basic logic of HELP. It’s still a long-term loan, repaid through the tax system based on what you earn. But the 2026 framework is materially more generous than what borrowers were facing even two years back. That’s good news – and it’s worth a quick look at your own myGov balance to see exactly where the 20% cut has landed for you.
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.