The Reserve Bank increasing the cash rate by 125 basis points (1.25%) over the past three months has put upward pressure on home loan rates.

A 30-year 3.00% p.a. interest rate increasing to 4.25% p.a. adds $425 per month to the average mortgage.

A homeowner who settled a mortgage before November 2021 was likely assessed on a serviceability buffer of 2.50% (the buffer has since been increased to 3%), meaning a 5.50% serviceability rate if the home loan was 3.00% p.a.

Markets are expecting the cash rate to hit 2.50% by year's end - variable mortgage rates will be dragged up too, meaning some homeowners could breach their original serviceability ceiling by Christmas.

This could be a real problem for those that took out loans at or near their maximum borrowing power, because it means their borrowing power may fall below their outstanding debt - rendering them risky in the eyes of many lenders.  

Banks reassessing the Household Expenditure Measure (HEM) in-line with high inflation may also cause headaches for those looking to get a better deal - increased living expenses also eat into borrowing power.

This is all while holding near-record debt - debt to income ratios beyond six-times continue to make up a bigger portion of the mortgage market.

Decreased equity in the home through falling home prices may also throw another spanner in the works - Sydney and Melbourne are already down about 1 to 1.5%.

Many bank economists forecast home price falls of up to 15%, of which the RBA says could happen with another 75 basis points' worth of rate rises.

If all these headwinds come to fruition, some homeowners might find themselves unable to refinance, locked into an expensive mortgage prison.

How can homeowners avoid a 'mortgage prison'?

1. Consider refinancing

The message is to refinance now to breathe some life into the buffer and keep on top of household expenses.

Marie Mortimer, managing director of online lender, said refinancing could allow borrowers to "future-proof" themselves in anticipation of tougher market conditions.

"That is especially true if they are coming off a fixed-rate loan onto a high variable rate with the same lender. Our biggest concern is that post COVID, some borrowers may be trapped with their current lender on higher rates because they can no longer service with other lenders," Ms Mortimer told

ABS data shows refinancing activity has picked up significantly since April, and new lender Unloan has already seen an influx of refinanced mortgages.

"For a long time, loyalty meant that people would keep their mortgage with major banks, but customer priorities have changed. Now, value is more important than loyalty, and people want simplicity," Unloan CEO Daniel Oertli said.

"In the past, switching lenders seemed like an inconvenience ... [now] people can apply for refinancing in 10 minutes – so that’s no longer a roadblock.

"For those who haven’t considered switching yet, it’s probably something they should consider as they look to tighten their belts in economical ways over the next few years."

Chad Hoy Poy, national lending manager at non-bank lender WLTH, said the aim is to refinance as soon as possible.

"Given the expectation of many economists and industry experts for the interest rates to continue rising throughout the year, homeowners should look to refinance as soon as possible," Mr Hoy Poy told

"As interest rates increase, the ability to borrow decreases as loan repayments increase inline with increasing interest rates and serviceability buffers used by lenders."

Mr Hoy Poy also urged borrowers to look out for exit fees and potential break fees when refinancing, as well as the comparison rate which gives an indication of the fees on the new home loan.


Daniel Oertli, CEO of Unloan. Image supplied.

2. Look beyond cashback deals and other offers

Mr Hoy Poy said cashback offers are worth a look but "should not be at the expense of good service or a lower interest rate".

"Check the fine print and understand what the home loan entails. An instant lump sum of money upfront may be enticing, but if it will cost more in the long run, then it may not be a good deal," he said.

Ms Mortimer said cashbacks and frequent flyer points are short-term gimmicks that can leave borrowers at a financial disadvantage over time. 

"During COVID we saw a lot of borrowers move to big banks offering large cashback incentives on fixed-rate loans," she said.

"In the next period, many of these borrowers will switch over to expensive variable rates with these banks, and are at risk of being worse off in the longer run.

"To compare home loans, the main thing to look at is the comparison rate, which rolls all of the costs and benefits into one simple number."


Marie Mortimer, managing director of Image supplied.

3. Look for fast approval times

The faster mortgage holders can refinance, the faster they can get a new rate before the RBA hikes the cash rate further and banks tighten lending criteria.

Challenger lender Nano claims to unconditionally approve customers in as little as 10 minutes, while Mr Hoy Poy said WLTH can approve a refinance from start to finish in three days.

This contrasts with the big banks; ANZ for example was losing $1 billion in mortgage customers a month as onboarding new customers took upwards of six weeks.

"Aside from just the numbers, choosing the right lender is paramount. Fast application and approval processes not only saves stress and hassle, but allows the mortgage owner to start saving money quicker," Mr Hoy Poy said.

In a Pureprofile survey commissioned by Nano, 270 of the 1,000 respondents said their bank took three to six weeks (or longer) to approve their home loan application.

One-in-five (20% or 200) said they missed out on a property due to how long their bank took to unconditionally approve finance.

"[Pre-approvals] are popular with traditional lenders ... because they're the papier-mâché over the inability to actually make a decision in a timely fashion," Nano CEO Andrew Walker said in June.

See Also: Compare Lenders' Approval Times

4. Don't think it's too hard

Ms Mortimer said a common misconception when shopping for a better mortgage deal is that it's too hard.

"My suggestion would be to look for a lender with a good rate and a hassle-free process so you get the refinance done and move on with your life," she said.

"Our research shows that the biggest reason why people delay refinancing is because they think it will be a huge hassle. More than two-thirds of our refinancers were pleasantly surprised it turned out to be easier than they expected.

"Almost everyone felt five years later that the savings were big enough to justify the effort."

Ms Mortimer also said online lenders typically aren't subject to regular banking hours, meaning those refinancing can complete the whole process in their own time and at home.

In the interest of full disclosure, and are both associates of Firstmac.


Buying a home or looking to refinance? The table below features home loans with some of the lowest interest rates on the market for owner occupiers.

Update resultsUpdate
LenderHome LoanInterest Rate Comparison Rate* Monthly Repayment Repayment type Rate Type Offset Redraw Ongoing Fees Upfront Fees LVR Lump Sum Repayment Additional Repayments Split Loan Option TagsFeaturesLinkCompare
6.04% p.a.
6.06% p.a.
Principal & Interest
Featured Online ExclusiveUp To $4K Cashback
  • Immediate cashback upon settlement
  • $2,000 for loans up to $700,000
  • $4,000 for loans over $700,000
5.99% p.a.
5.90% p.a.
Principal & Interest
Featured Apply In Minutes
  • No application or ongoing fees. Annual rate discount
  • Unlimited redraws & additional repayments. LVR <80%
  • A low-rate variable home loan from a 100% online lender. Backed by the Commonwealth Bank.
6.14% p.a.
6.16% p.a.
Principal & Interest
Featured Unlimited Redraws
  • No annual fees - None!
  • Get fast pre-approval
  • Unlimited additional repayments free of charge
  • Redraw freely - Access your additional payments when you need them
  • Home loan specialists available today
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 . View disclaimer.

Photo by Charles Deluvio on Unsplash

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