Offset vs. Redraw: What a $55 Million Bank Failure Means for Your Mortgage Strategy

In July 2026, Australia's corporate regulator revealed that banks have paid out more than $55 million in compensation because offset accounts across the industry weren't working the way customers were told they would. If you're choosing between an offset account and redraw for your home loan, that finding deserves a place in the decision — not as a scare story, but as a genuine data point about how each option actually behaves in practice, not just on paper.

The two approaches, in brief

An offset account is a separate transaction account linked to your home loan. The balance in it doesn't earn interest itself, but it reduces the loan balance your interest is calculated on — $50,000 sitting in offset against a $500,000 loan means you're only charged interest as if you owed $450,000, while the $50,000 stays fully accessible for everyday spending.

Redraw works differently: extra repayments go directly onto the loan itself, immediately reducing the balance you're charged interest on, with the option to draw those extra funds back out later if you need them.

Run the numbers on a $600,000 loan at 5.99% over 25 years, with a household directing roughly $2,873 a month in genuine surplus toward either option, and the two approaches land in almost exactly the same place: the loan clears in around 9 years 11 months either way, with total interest of roughly $195,600. That's not a coincidence — when the same amount of money is applied with the same consistency, offset and redraw are mathematically close to interchangeable. The real differences are structural, not financial.

What regulators just found with offset accounts

The Australian Securities and Investments Commission reviewed 204,000 home loans settled across eight major banks — covering more than 70% of the home loan market — between March and August 2025. The most common failure it found, accounting for 55% of cases reviewed, was an offset account that had been opened but was never actually linked to the home loan. Customers saw a normal-looking balance sitting in what they believed was their offset account, while the loan's interest calculation never reflected it. Manual errors by bank staff were identified as the main cause.

The compensation figures give a sense of scale: one customer was repaid more than $17,000; another lost an extra $3,500 in interest in just over a month after a working offset link broke. Across the sector, Australians currently hold around $349 billion in offset balances, so even a modest error rate translates into real money.

What makes this failure mode particularly worth knowing about is that it's invisible by default. Your minimum repayment doesn't change when an offset stops working. Your account still shows a balance. Nothing on the surface tells you anything is wrong — which is exactly why the regulator's report was titled "Offsets, out of mind."

Why this doesn't apply to redraw in the same way

This is a genuine structural point in redraw's favour, worth stating plainly: an offset failure happens because it requires two separate systems — a transaction account and a home loan — to be correctly linked, and that link is what can silently fail. Redraw doesn't have an equivalent failure mode, because there's nothing to link. An extra repayment reduces the loan's own recorded balance directly; it's the same ledger, not a linked one. If you can see your loan balance has gone down by the extra amount you paid, it's working, by definition.

That doesn't make redraw the automatically superior choice — it has its own, different trade-offs. Redraw funds are typically a little less immediately accessible than offset (often requiring a transfer rather than being spendable straight from a linked everyday account), and access can be capped or restricted at the lender's discretion, particularly on some fixed-rate or special loan products. If there's a realistic chance this property becomes an investment property down the track, redrawing funds for private use can also complicate the loan's tax-deductible purpose in ways offset generally doesn't — we've covered that in more detail in our piece on . Redraw simply isn't exposed to this particular linkage-failure risk the way offset is.

How to actually check your offset is working

If you already have an offset account, the regulator's own guidance is worth acting on regardless of what you read here. Three checks:

• Check your home loan statement directly shows the offset balance reducing the interest-bearing portion of your loan — not just that the offset account exists elsewhere in your banking app.

• Confirm in your banking app or with your bank that the offset account is explicitly linked to the correct home loan account number, especially if you've refinanced, switched products, or opened accounts around the same time.

• Sense-check the interest actually being charged against what you'd expect given your loan balance minus your offset balance. If it looks off, contact your bank and ask them to review it.

If you find a problem, banks are required to investigate and compensate for lost interest — but as the regulator noted, some banks only did this when a customer complained, rather than proactively identifying the error themselves. Don't assume no news is good news.

Where the 0% credit card fits in

A third variation worth a brief mention: some households route everyday spending through an interest-free credit card, clearing it in full every billing cycle, so their income sits in offset a little longer each month before it's spent. Done properly, this adds a modest additional saving — a few thousand dollars over the life of a loan like the one above — on top of whichever core approach (offset or redraw) you're using. It's a minor optimisation layered on top of the real decision, not a substitute for it, and it carries its own discipline risk: miss a payment and the interest charged can outweigh the benefit many times over.

So which should you choose?

Financially, on the numbers alone, it's close to a genuine tie. The honest basis for choosing is everything this article has covered: how accessible you want your extra savings to be day-to-day, whether you're comfortable relying on a bank to correctly maintain a linked account (and are willing to actually check that they have), whether this property might ever become an investment, and how disciplined you are likely to be as any balance grows. Neither option is objectively better — but if you do go with offset, treat verifying it's genuinely linked as a non-negotiable first step, not an afterthought.

Not sure which structure suits your loan?

This article is general information only and does not take into account your personal financial situation, needs, or objectives. It is not financial or tax advice. Figures are illustrative estimates based on the scenario described and may not reflect your circumstances. Details of the ASIC review are drawn from ASIC Report 837, "Offsets, out of mind: Banks fall short on mortgage offset account promises" (29 July 2026); if you're concerned about your own offset account, contact your bank directly. Please seek independent financial and/or tax advice before making decisions about your home loan. Ian Freeman is a Credit Representative (Credit Representative Number 439731) of Finsure Finance & Insurance Pty Ltd, Australian Credit Licence 384704.