SYDNEY, May 11, 2026, 00:01 AEST
Commonwealth Bank of Australia will lift variable home loan rates by 25 basis points on Friday, pushing its standard owner-occupier principal-and-interest reference rate to 8.80% from 8.55% as borrowers move closer to feeling the full force of this year’s Reserve Bank tightening. Existing customers will be able to see their new rate in NetBank and the CommBank app from Saturday, the bank said.
The timing matters because many mortgage holders are still not paying the full cost of the Reserve Bank of Australia’s three rate increases this year. Canstar data insights director Sally Tindall told NewsWire that banks calculate interest daily, “but they don’t ask you for that extra money straight away,” with the latest rise expected to add about A$91 a month to repayments on a A$600,000 mortgage and about A$272 across all three increases. News
The RBA’s cash rate, the overnight lending benchmark that influences mortgage and deposit rates, is now 4.35%, effective May 6. A basis point is one-hundredth of a percentage point; the May move was a 25-basis-point increase and the central bank said inflation risks remained tilted to the upside.
CBA’s retail banking head Angus Sullivan said the bank recognised that many customers were already managing higher living costs and that another rate increase could add pressure. “Our focus is on supporting customers to stay on top of their finances,” Sullivan said, pointing customers to budgeting tools, repayment changes and financial assistance channels. CommBank
CBA is not moving alone. Westpac, National Australia Bank and ANZ, its big-four peers, are also set to implement mortgage rate increases from May 15, while AMP Bank was listed as moving earlier, from May 11, in a spread that Broker Daily said showed a 21-day gap between the fastest and slowest lenders.
The hit is broader than home loans. CBA said eligible variable-rate business loans, including BetterBusiness Loans and Business Overdrafts, will also rise by 25 basis points from May 15. Mike Vacy Lyle, CBA’s group executive for business banking, said inflation and global conditions continued to shape the operating environment for Australian firms.
For investors, the rate move lands just before CBA’s third-quarter trading update, scheduled for May 13. The update is likely to draw attention to lending growth, deposit pricing, net interest margins and arrears, as higher rates can support bank income but also test customers’ ability to repay.
The main risk is that the inflation shock does not fade quickly. CBA Head of Australian Economics Belinda Allen said “economic outcomes will dictate the path of policy,” and warned that another rate rise could not be ruled out, depending on budgets, wages, consumer spending and June-quarter inflation data. CommBank
CBA also had a small operational item over the weekend, listing planned work on NetBank, the CommBank app, Ceba and messaging services on Sunday. The bank said physical cards and digital wallets would continue to work during the maintenance window.
The immediate story is still rates. CBA borrowers get the higher mortgage rate this week; the larger question is how much of the delayed repayment shock turns up in household spending before the RBA’s next decision on June 16.
