Suncorp borrowers told minimum repayments may rise when home loans move to ANZ

Some Suncorp Bank mortgage customers have been warned that their minimum repayments are likely to rise after their loans move onto ANZ’s systems, highlighting how different lender rules can change a household’s required payment even without a new interest rate.

The issue affects principal-and-interest borrowers who have made advance payments and have money available through Suncorp’s Cashback or redraw facility. Suncorp has historically allowed those payments to reduce the balance used when calculating the minimum repayment.

ANZ uses a different calculation. When a loan transfers, the money paid ahead can continue reducing the interest charged, but it may no longer produce the same reduction in the minimum amount that must be paid each month.

ABC News reported on Monday that one customer’s correspondence indicated a possible increase of more than $1,000 a month. The size of any change will depend on the outstanding debt, advance payments, remaining term and the repayment currently required by Suncorp.

Suncorp Bank chief executive Malcolm Stedman told the ABC that most customers would see no repayment change. He said borrowers who were ahead on their schedules could face an increase if they took no action.

Why the required payment can change

A borrower might have a $600,000 contractual debt but have made $100,000 of advance payments. The extra money generally reduces the balance on which interest is charged, leaving the household paying interest as though it owed $500,000.

The question is whether the lender also uses that lower effective balance when setting the minimum payment needed to clear the mortgage within its remaining term.

According to the Suncorp transition information, ANZ’s calculation may produce a higher minimum than Suncorp’s where advance payments have previously lowered the required instalment. This does not necessarily mean the interest rate has increased or that the borrower has lost the benefit of the money sitting in the loan.

A higher required payment may also repay the principal faster and reduce lifetime interest. The immediate problem is cash flow: a household that has arranged its budget around the lower Suncorp minimum may need to find hundreds of dollars more each month.

What customers will be told

ANZ acquired Suncorp Bank in July 2024 and has begun moving customers to its systems and services. ANZ has said the broader transition is expected to be completed by June 2027.

Suncorp’s published guidance says the first minimum repayment after transfer will match the amount applying at Suncorp at the time of the move. ANZ will then notify the customer of the subsequent minimum and provide at least 30 days before that new amount starts.

Borrowers should not assume the headline example reported by the ABC will apply to them. The impact is account-specific, and many customers who have not built up advance payments may see no change for this reason.

Customers should check both their redraw or Cashback balance and the contractual loan balance shown in their correspondence. They should also confirm whether any action suggested by the bank changes their access to savings, loan term, interest costs or account features.

Anyone considering refinancing should compare the full package rather than the advertised rate alone. Discharge fees, offset access, redraw conditions, annual fees and the remaining loan term can materially affect the result. Investors may also need tax advice before rearranging money associated with a loan.

Borrowers struggling to meet a new required payment should contact the bank before it takes effect. Early contact provides more time to discuss repayment frequency, restructuring, refinancing or hardship support.

What it means for you

• Suncorp borrowers with substantial advance payments should read their transfer notice carefully rather than assuming their minimum will stay unchanged.
• Confirm the new repayment amount and commencement date directly with the bank before changing redraw or Cashback arrangements.
• Compare rates, fees and loan features if refinancing, not just the monthly repayment displayed by a new lender.