That discounted rate is offered to those who refinance online to the bank's Flexi First Option home loan and marks a 35 basis point cut on the product's previously advertised rate. 

However, not all borrowers will be eligible for – or willing to take up – the mortgage product.

Borrowers must have a loan-to-value ratio (LVR) of 70% or less to take up the deal.

Those with smaller deposits or less equity will face a less competitive interest rate of 5.94% p.a. (comparison rate* 5.95% p.a.).

Additionally, the online-only offer isn't available to those refinancing through a broker or branch.

"We expect our refreshed offer, coupled with the convenience of refinancing online, will appeal to both owner occupiers and investors looking for a fast and simple way to achieve greater savings on their existing home loan," Westpac managing director of mortgages James Hutton said.

The big bank has realised a 45% increase in mortgage borrowers refinancing to its books in the most recent quarter.

"With cost of living remaining top of mind for many Australians, savvy refinancers are making the most of the competitive mortgage market and shopping around for a better deal," Mr Hutton said.

Rates offered to those refinancing to Westpac online include:

LVR Rate Comp rate*
Owner-occupier ≥80% 6.59% 6.59%
70-80% 5.94% 5.95%
≤70% 5.84% 5.85%
Investor ≥80% 6.89% 6.89%
70-80% 6.19% 6.20%
≤70% 6.09% 6.10%

The discounted products won't be for everyone, though.

“While our Online Home Loan offer is available direct to refinancers online, many customers will still choose to go to a lender or broker for their expertise and face-to-face support,” Mr Hutton said.

How does Westpac's new variable home loan rate stack up?

It's the latest move in a game of direct-to-customer home loan offers put forward by big banks in recent years.

The ANZ Plus Home Loan has advertised rates matching those now offered by Westpac since the bank implemented the Reserve Bank rate cut in February.

That rate, from ANZ's app-based mortgage product, is applicable to refinancers with LVRs as high as 80%.

Additionally, the bank offers a $2,000 cashback deal to new-to-bank borrowers refinancing loans of $250,000 or more before 31 March.

CommBank unveiled its Digi Home Loan, which currently offers a rate of 5.90% p.a. (comparison rate* 6.03% p.a.) to direct-to-bank refinancing customers, in the middle of last year.

Contrastingly, NAB doesn't currently offer an online-only refinancing product.

Its lowest variable home loan rate is 6.19% p.a. (comparison rate* 6.23% p.a.) - head and shoulders above those promised by its peers.

Looking past the big four, many mutual banks currently advertise home loan rates as low as 5.64% p.a.

These include Horizon Bank, Australian Mutual Bank, and Summerland Bank.

Investors on the hunt for competitive refinancing deals

While owner-occupiers typically face the lowest advertised home loan rates, investors appear to be making the most of the RBA rate cut.

Think Mortgage director Kapil Virmani reports seeing "significant movement" among investors hunting the most competitive rates.

"Of course, everyone wants a lower rate, but this is particularly the case with investors, who regard their property as a financial asset and are very numbers-driven," Mr Virmani said.

"Owner-occupiers are more likely to set and forget their home loan."

Mortgage complacency could be a major financial mistake.

A mortgage holder with a $600,000 home loan realising an interest rate of 6.00% p.a. could save more than $950 a year by refinancing to a mortgage rate of 5.75% p.a.

Looking longer term, that same borrower could save nearly $29,000 over the life of a 30-year mortgage.


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Update resultsUpdate
LenderHome LoanInterest Rate Comparison Rate* Monthly Repayment Repayment type Rate Type Offset Redraw Ongoing Fees Upfront Fees Max LVR Lump Sum Repayment Additional Repayments Split Loan Option TagsRow TagsFeaturesLinkComparePromoted ProductDisclosure
5.79% p.a.
5.83% p.a.
$2,931
Principal & Interest
Variable
$0
$530
90%
  • Owner Occupier
  • Variable
  • Principal & Interest
  • 10% Min Deposit
  • Redraw
  • Extra Repayments
  • More details
  • Available for purchase or refinance, min10% deposit needed to qualify.
  • No application, ongoing monthly or annual fees.
  • Dedicated loan specialist throughout the loan application.
Disclosure
5.84% p.a.
5.86% p.a.
$2,947
Principal & Interest
Variable
$0
$250
60%
  • Owner Occupier
  • Variable
  • Principal & Interest
  • 40% Min Deposit
  • Redraw
  • More details
  • Easy application. Fast approval. No annual fee.
  • Unlimited additional repayments free of charge.
  • Redraw freely - Access your additional payments.
Disclosure
5.74% p.a.
5.65% p.a.
$2,915
Principal & Interest
Variable
$0
$0
80%
  • 100% owned by Commbank
  • Owner Occupier
  • Variable
  • Principal & Interest
  • 20% Min Deposit
  • Redraw
  • More details
  • A low-rate variable home loan from a 100% online lender.
  • Backed by the Commonwealth Bank.
Disclosure
Important Information and Comparison Rate Warning

Base criteria of: a $400,000 loan amount, variable, fixed, principal and interest (P&I) home loans with an LVR (loan-to-value) ratio of at least 80%. However, the ‘Compare Home Loans’ table allows for calculations to be made on variables as selected and input by the user. Some products will be marked as promoted, featured or sponsored and may appear prominently in the tables regardless of their attributes. All products will list the LVR with the product and rate which are clearly published on the product provider’s website. Monthly repayments, once the base criteria are altered by the user, will be based on the selected products’ advertised rates and determined by the loan amount, repayment type, loan term and LVR as input by the user/you. *The Comparison rate is based on a $150,000 loan over 25 years. Warning: this comparison rate is true only for this example and may not include all fees and charges. Different terms, fees or other loan amounts might result in a different comparison rate. Rates correct as of .

Important Information and Comparison Rate Warning

Image by Sam Wilson via Wikimedia Commons