HECS in 2026: Should You Pay It Off Early or Invest Instead?

For years, the default Australian money advice on HECS sounded like this: "Don't worry about it too much. Just let payroll chip away at it."

That was already only half the story. In 2026, it is even less complete.

The reason is simple. HECS is still not a normal loan, but the rules changed. From 1 July 2025, compulsory repayments moved to a marginal repayment system. That means many people now repay less each year than they would have under the old setup. Great for cash flow. Slightly more annoying for anyone who wanted a tidy one-line answer.

So should you smash the debt, invest instead, or keep your cash ready for something more useful? Here is the practical version.

First, what changed?

According to the ATO, compulsory study loan repayments changed from 1 July 2025.

For the 2025-26 income year:

• the minimum repayment income is $67,000
• for most income bands, repayments are calculated only on the portion of repayment income above that threshold, while the top band pays 10% of total repayment income
• repayment income is broader than salary and can include things like reportable fringe benefits, reportable super contributions, net investment losses and exempt foreign employment income
• thresholds and rates are updated each year, with the ATO noting the new system is indexed in line with average weekly earnings

That is a meaningful shift. Under the old system, once you crossed the threshold, the repayment rate hit your whole repayment income. Under the new system, most bands only apply the rate to the slice above the line, although the top band still works differently.

The ATO's pre-law-change comparison is useful here. Someone on $80,000 repayment income used to face a compulsory repayment of $2,800. Under the marginal system, that drops to $1,950. Same debt, different pain level.

That change matters because the smaller your compulsory repayment, the weaker the "just pay it off quickly" argument becomes for many people.

Why people still want to kill HECS early

There are four sensible reasons Australians make voluntary HECS repayments.

1. They hate indexation

HECS does not charge a normal interest rate, but it is indexed. As of 2026, recent reforms mean indexation uses the lower of CPI or WPI rather than just CPI. The ATO says the 2026 indexation rate is 2.8%, after 3.2% in 2025.

That is better than the ugly spike years, but it does not mean the debt sits still. If you leave the balance there for longer, indexation has more time to do its thing. No drama, just maths being slightly rude again.

2. They want better borrowing capacity

This is the big one for future home buyers. In practice, many lenders and broker serviceability models factor HECS repayments in as an ongoing commitment. If you are trying to stretch into a property purchase, that can shave a chunk off what a bank is willing to lend.

If you are within striking distance of buying, it is worth checking your serviceability with a lender or broker before deciding whether your extra cash should go toward HECS or your deposit.

3. They want cleaner cash flow later

Once the debt is gone, the withholding linked to compulsory repayment eventually disappears too. That can mean more take-home pay and one less financial loose end to think about.

4. They just want the psychological win

That is not fake or silly. Some people sleep better with fewer debts. Personal finance is still personal, even when the spreadsheet crowd gets a bit smug about it.

Why paying HECS early is often not the best move

There are also very good reasons not to rush.

One important update here: if you had an eligible study debt on 1 June 2025, the government has already processed the 20% debt reduction announced in 2025. So if you are comparing old advice with your current balance, make sure you are using the post-reduction number rather than a stale screenshot from last year.

1. HECS is still relatively cheap debt

A mortgage at 6-something percent is expensive debt. A credit card at 20 percent is chaos in plastic form. HECS is not in that league. Even with indexation, it is usually a lower-cost debt than the other stuff people carry.

So if you have credit card debt, a personal loan, or no emergency fund, paying HECS early is usually not the first job.

2. The new system reduced the urgency

Because compulsory repayments are now lower for many incomes, the cash flow pressure is not as harsh as it used to be. That makes it easier to keep building savings, investing, or holding cash for a house deposit instead of launching every spare dollar at your student debt.

3. Investing can still win over time

If your time horizon is long and you are comfortable with investment risk, money invested in a diversified portfolio can outgrow the benefit of making a voluntary HECS repayment. Not guaranteed, of course. Markets do not sign legally binding promises. But over long periods, growth assets can beat the effective cost of carrying HECS.

That is exactly why you should compare the two paths properly rather than relying on vibes, podcasts, or one bloke on Reddit who has "done the research".

A simple way to think about the decision

Ask these questions in order:

1. Do I have an emergency fund? If not, build that first.
2. Do I have more expensive debt? Kill that before worrying about HECS.
3. Am I buying property in the next 1 to 3 years? If yes, HECS might matter because of borrowing capacity.
4. Would I actually invest the money if I did not repay HECS? Be honest. "I will probably leave it in offset or savings" is still a valid answer. "I will definitely invest it" is less valid if you have been saying that since 2022.
5. Do I value certainty more than expected returns? Paying off HECS gives certainty. Investing gives possibility.

A worked example

Say you have:

• a $22,000 HECS balance
• $10,000 in spare cash
• repayment income of $80,000
• a goal of either buying in two years or investing for the long run

Option A: Make a voluntary HECS repayment

You reduce the balance immediately, cut future indexation on that amount, and potentially improve how a lender sees your ongoing commitments. If your home loan plans are close and serviceability is tight, this can be the right move even if it is not the highest theoretical long-term return.

Option B: Keep the money in cash or offset

If you are buying soon, holding the cash might be more useful than sending it to the ATO. Cash can help with your deposit, stamp duty, legal fees, moving costs, and the usual parade of surprise expenses that shows up every time property is involved.

Option C: Invest the money

If buying property is not on the near-term list and you already have your cash buffer sorted, investing can make more sense. Even moderate long-run returns can beat the savings from reducing a low-cost indexed debt, especially now that compulsory repayments are softer for a lot of incomes.

That is the core point. In 2026, the decision is less about whether HECS is "bad" and more about what the money could do elsewhere.

When paying HECS early probably does make sense

• you are trying to improve borrowing capacity soon
• you have no higher-interest debt left
• you already have an emergency fund
• you want a guaranteed reduction in future indexation
• you know you will not invest the money anyway

When leaving HECS alone is usually smarter

• you have credit card or personal loan debt
• you need more cash buffer
• you are not buying property soon
• you can invest consistently for the long term
• you value liquidity more than debt reduction right now

Final word

There is no one-size-fits-all winner here.

For many Australians, the new marginal repayment system makes HECS less urgent than it used to feel. If you have better uses for the money, especially an emergency fund, a deposit, or long-term investing, sending extra cash to HECS may not be the best play.

But if borrowing capacity is the bottleneck, or you simply want the debt gone, paying it down can still be a smart move.

The boring answer is the right answer. Run your own numbers, compare the trade-offs, and do not let one very loud finance opinion on the internet make the choice for you.

Sources: Australian Taxation Office, Study and training loans - what's new; Australian Taxation Office, Study and training loan repayment thresholds and rates; and Australian Taxation Office, Study and training loan indexation rates.

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