Australian banks have paid more than $55 million [1] in compensation after an investigation found mortgage offset accounts were set up incorrectly.

This failure meant thousands of homeowners paid more interest than necessary. Because offset accounts are designed to reduce the principal balance used to calculate interest, any configuration error directly increases the cost of a home loan.

The Australian Securities & Investments Commission (ASIC) discovered that banks failed to correctly configure these accounts, which led to the wide-scale underpayment of savings benefits. The compensation payments were distributed over a two-year period [2].

Mortgage offset accounts typically link a savings account to a loan, allowing the balance in the savings account to offset the loan balance. This reduces the total interest charged on the remaining debt, a feature that is critical for borrowers attempting to pay off their homes faster.

Following the findings, guidance has been issued to help borrowers verify that their accounts are functioning as intended. Sally Tindall, the Data Insights Director at Canstar, said homeowners should check their statements for these errors.

Borrowers are encouraged to compare their daily loan balance against their offset account balance to ensure the interest is being calculated on the net amount. If the interest charge remains high despite a significant offset balance, the account may be misconfigured.

ASIC intervened to protect consumers after the systemic errors were identified. The regulator's focus remains on ensuring financial institutions adhere to their obligations to provide the products and benefits promised to customers.

Banks paid more than $55 million in compensation for offset-account failures

The ASIC investigation highlights a systemic failure in the automated systems used by major Australian lenders to manage mortgage products. When banks misconfigure offset accounts, they effectively strip borrowers of a primary tool used to mitigate interest costs, leading to significant financial loss for the consumer and regulatory penalties for the institution.