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Borrowing power

HECS-HELP and home-loan borrowing capacity

HECS-HELP is not interest-bearing like a personal loan, but compulsory repayments reduce assessable income and lenders still load the remaining balance into serviceability. Indexation makes the balance a moving target.

By Priya Raman, Policy correspondent · 14 April 2026 · Updated 7 October 2026 · 5 min read

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HECS-HELP is the quiet third person in many Australian home-loan applications. It does not charge a market interest rate. It is indexed. The ATO takes a compulsory extra withholding once you earn over a threshold. Lenders, who live in a world of commitments, treat that withholding — and often the balance — as a reason you can afford less house.

This is not a moral argument about university. It is a serviceability argument.

Two ways HECS shows up in the assessment

1. Income reduction. Compulsory HELP repayment is a function of your repayment income. It is money you never see. A lender using net income or adding a HELP commitment is trying to capture that. If you have just crossed a threshold, a pay rise can reduce borrowing power until the extra income outruns the extra withholding. That perversity is real.

2. Liability treatment. Some credit policies apply a monthly equivalent of the remaining HELP balance (for example, a percentage of the balance as a notional repayment). A $48,000 balance then behaves a bit like a personal loan in the calculator even though you cannot be sued by a bank for it in the same way.

Ask the broker or lender which method they use. It changes the strategy.

Indexation

HELP indexation is tied to inflation measures set in legislation and has been politically noisy after large indexation years. A balance that grew while you were saving a deposit is infuriating. It also changes the liability the lender sees. When indexation is due, a file submitted in May and assessed in June can move. Lodge with current ATO statements.

Voluntary repayments

You can pay the ATO extra. That can reduce indexation exposure and shrink the liability in the credit assessment. It can also spend the cash that would have been a deposit or LMI avoider. A $20,000 voluntary HELP repayment that leaves you at 92 per cent LVR instead of 88 per cent may be a bad trade. A $20,000 repayment that takes you below a lender's HELP-policy cliff may be a good one. This is spreadsheet work.

Do not borrow on a card to pay HECS. That is swapping cheap indexed debt for 20 per cent debt.

Combined applicants

If one of you has a large HELP balance and the other has none, the joint assessment still carries it. Sometimes structuring as a single applicant plus guarantor (careful, different product) is floated; that is a specialist conversation with legal advice, not a party trick. Usually you just live with the joint file.

Worked sketch

Salary $88,000, HELP $36,000, compulsory repayment in the ballpark of a few thousand a year (thresholds change — check ATO). Lender A subtracts the ATO withholding only. Lender B also applies 1 per cent of the HELP balance as a monthly commitment ($360). Lender B will offer less. Neither is 'wrong'. Shop the policy, not just the rate.

Practical steps

  • Download a current HELP statement from myGov.
  • Know which repayment threshold you sit in.
  • Model deposit versus voluntary repayment.
  • Do not time a job switch to a lower-paying role the same month you apply; both income and HELP withholding move.

HECS is not a stain. It is a policy instrument that happens to sit inside borrowing-power maths. Treat it as a number you can plan around, not as a secret you hope the bank will not notice. They will notice.

Second degrees and combined HELP

A masters on top of a bachelors can make a HELP balance that looks like a car loan. Lenders will not be sentimental about your thesis. If you are mid-degree, the balance may still rise. Tell the assessor if a new semester of fees is about to index onto the file.

Indexation timing versus settlement

If you are settling in June, ask whether a 1 June indexation will be re-pulled. Some credit teams use the statement you gave them; some re-check. A few thousand of extra HELP is rarely the difference between yes and no, but on a knife-edge file it can be.

Paying HELP with a windfall

An inheritance or bonus: model deposit versus HELP versus offset. HELP is usually the cheapest 'rate' but the worst LVR tool. Offset is flexible. Deposit changes bands. There is no universal winner; there is a spreadsheet.

Talk to the lender about method, not feelings

'Do you assess HELP as a repayment withholding, a balance commitment, or both?' is a professional question. 'I think HECS shouldn't count because it is not real debt' is a feeling. You will get further with the first. If Lender A's method costs you $40,000 of borrowing power versus Lender B, that is a policy shop, the same as overtime shading.

HELP is not immoral and it is not invisible

You do not owe anyone an apology for going to university. You do owe the assessor a current statement. Get it from myGov the week you apply. Old PDFs waste days. If your employer withholding looks wrong versus the ATO, fix that too; serviceability uses real pay slips.

Documents to bring, and a last caution

When you sit down with a lender, broker, packager or yard manager, bring a current myGov HELP statement, your PAYG summary, and two scenarios (pay HELP vs keep the deposit). If they will not look at paper, they are selling speed. Speed is expensive in Australian credit.

Write down the thing you are afraid to ask — the fee, the balloon, the HELP treatment, the break cost — and ask it first, while you still have the nerve. The second conversation is always weaker. If the answer is vague, you do not have an answer.

This desk would rather you delay a week than sign a contract whose comparison rate you cannot explain to a friend. ASIC's MoneySmart remains the public-interest spare brain: use it the night before, not the morning after. And if the product only works on overtime that is not in your contract, it does not work. Buy a smaller thing, or wait. Waiting is still allowed.

People also ask

Does HECS affect how much I can borrow?
Yes. Lenders allow for the compulsory repayment that comes out of your salary and many also apply a commitment to the remaining HELP balance. The effect is larger when you are just above a repayment threshold or when the balance is large relative to income.
Should I pay off HECS before applying for a home loan?
Only if the serviceability gain beats using that cash as a deposit or offset. HECS is usually cheaper debt than a credit card, and sometimes cheaper than wasting a 5 per cent deposit opportunity. Run both scenarios.
Can I consolidate HECS into my mortgage?
You can make voluntary HELP repayments with cash, including cash-out from a refinance, but you cannot 'transfer' HECS to a bank like a card payout. Once paid to the ATO, it is gone from HELP and you simply have a larger home loan. That is rarely elegant.

Related guides

  • How lenders calculate borrowing power in Australia

    Borrowing power is a credit-policy output: assessable income, haircut, expenses, existing commitments, HEM versus your statements, and a serviceability buffer on the proposed rate. The homepage calculator is theatre.

  • The APRA serviceability buffer, explained

    Australian lenders must assess home loans as if the rate were higher than the contractual rate, by a buffer APRA sets. That buffer is why you cannot borrow the repayment you can 'make today'.

  • How much deposit do you need for a home loan in Australia?

    The honest answer is: enough to satisfy the lender's LVR, plus costs, plus a buffer. Twenty per cent is a pricing threshold, not a moral one. Five per cent is possible with the right scheme and a strong stomach.

  • When to refinance your home loan in Australia

    Refinance when the saving survives fees, a new serviceability test and a reset clock — not because a billboard offered cashback. Timing is a spreadsheet, a credit-file decision and a life decision.

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