Banks Repay $55m Over Mortgage Offset Account Failures

Australia's corporate regulator has found that some banks are failing to deliver the savings promised with mortgage offset accounts, leaving customers unknowingly paying more interest on their home loans than necessary. The Australian Securities and Investments Commission (ASIC) has revealed that banks have paid more than $55 million in compensation over two years for failures in how these accounts were set up, monitored, and managed.

According to ASIC, the review examined eight banks—AMP, ANZ, CBA, Credit Union Australia, HSBC, ING, Macquarie, and Westpac—which collectively represent more than 70 per cent of Australia's home loan market. The regulator found weaknesses across all of them in how offset accounts were handled.

ASIC chair Sarah Court accused banks of "not getting the basics right," saying that when offset accounts don't operate correctly, the harm can be hidden. "Loan repayments stay the same, while customers unknowingly pay more interest and take longer to repay their loan," she said.

Coverage Comparison

Reporting from ABC Australia and The Guardian highlights the scale of the issue. Both outlets noted that banks have repaid $55 million to customers over two years, with The Guardian specifying that this went to "hundreds of thousands" of customers. The Guardian also reported that ASIC's review of more than 200,000 home loans from eight banks unearthed poor practices, including an example where a bank accidentally unlinked a customer's offset account, resulting in the customer paying more than $3,500 in additional interest in just one month.

ABC Australia's coverage emphasized the increasing popularity of offset accounts, noting that the Reserve Bank of Australia reports 55 per cent of housing loan facilities now have an offset account as of March 2026. The amount of savings in these accounts has reached record highs, with APRA confirming about $349 billion held in offset accounts—a figure The Guardian described as having "ballooned."

The two outlets framed the story slightly differently. ABC Australia's first piece focused on the failures themselves, while a second article offered practical advice for homeowners on how to check if their offset account is working correctly. The Guardian's coverage was more critical in tone, using language like "accused" and "faulty," but all reporting drew on the same ASIC findings.

Key Claims

The central facts of the story, as reported by multiple sources, include:

  • ASIC found weaknesses across all eight banks examined in how offset accounts were set up, monitored, and managed.
  • Banks paid more than $55 million in compensation over two years for offset-account failures, a figure ASIC warned would climb higher as remediation continued.
  • ASIC's review covered more than 200,000 home loans, and in one case a bank accidentally unlinked a customer's offset account, leading to over $3,500 in extra interest in a single month.
  • The amount of savings held in offset accounts has grown to nearly $350 billion, according to APRA figures cited by both sources.
  • Offset accounts are increasingly popular, with the Reserve Bank of Australia data showing 55 per cent of mortgages now have one attached.
A single source, Canstar, estimates that about $61 million worth of interest is being offset every day, a figure reported by ABC Australia.

Why Offset Accounts Matter

An offset account works like a normal bank account but is linked to a home loan. The balance in the offset account is deducted from the outstanding mortgage balance when calculating interest, reducing the amount of interest payable. For example, a borrower with a $500,000 mortgage and $50,000 in an offset account would only pay interest on $450,000.

Melissa Gielnik, founder of Smart Lending Mortgage Brokers, told ABC Australia that in her experience, banks have often not linked the offset account to the mortgage for clients. Sally Tindall, a consumer advocate quoted by ABC, encouraged homeowners to call their bank if they are concerned about their offset accounts.

ASIC chair Sarah Court noted that the failures often went undetected by both banks and customers because loan repayments stayed the same. The regulator's report suggested the problem could be even more widespread, as some banks couldn't readily identify whether a customer had even requested an offset account.

As remediation continues, further compensation is likely, meaning customers may need to check their own mortgage statements to ensure they are receiving the promised interest savings.