House prices are falling across most of Australia, which should be good news if you are trying to buy one. Cotality's Home Value Index dropped 0.7% nationally in July 2026, the steepest monthly fall since December 2022, and Sydney and Melbourne now sit more than 5% below their recent peaks.
Here is the problem. Over the same period, the amount the average Australian can borrow fell further and faster than the price of the average house. Three RBA rate rises in 2026 have taken more out of buyer budgets than the correction has taken off asking prices. For most households, a cheaper market has become a harder one, and understanding why is the difference between a realistic search and six months of wasted weekends.
What happened to interest rates in 2026
After a year of easing through 2025, inflation re-accelerated. The RBA delivered three consecutive increases in February, March and May 2026, taking the cash rate to 4.35% and reversing almost all of the previous year's cuts.
The Board's reasoning was straightforward: headline CPI had reached 4.6% and the trimmed mean 3.5%, both above the 2% to 3% target band, with the RBA forecasting headline inflation to peak near 4.8% in the June quarter before easing.
In August the Board held at 4.35%, but the Governor explicitly kept the door open to further increases, and market pricing has continued to imply at least one more rise before the year is out. CBA's economists expect the next move down to arrive only in 2027, with cuts pencilled in around May and August of that year.
For buyers, the significance is not the cash rate itself. It is what the cash rate does to the assessment rate.
Why 4.35% feels like 9% when you apply for a loan
Australian lenders do not assess your loan at the rate you will pay. They assess it at that rate plus a buffer, and APRA has held that buffer at three percentage points.
The arithmetic in mid-2026 works out like this:
| Component | Rate |
|---|---|
| RBA cash rate | 4.35% |
| Typical new variable home loan rate | around 6% |
| APRA serviceability buffer | +3.00% |
| Rate your borrowing capacity is tested at | around 9% |
You will make repayments at roughly 6%. The bank asks whether you could still make them at roughly 9%, and lends accordingly. The buffer exists for a good reason, which is that borrowers who took loans at 2% in 2021 discovered what happens when rates triple. But in a rising-rate environment it compounds every hike, because both the underlying rate and the tested rate move together.
APRA has faced periodic calls to lower the buffer for first-home buyers and has consistently declined, noting that housing credit growth has remained solid despite higher rates. Our explainer on home loan options covers how different loan structures interact with that assessment.
The numbers: capacity lost against prices lost
This is the comparison that reframes the 2026 market. Canstar's analysis of the three 2026 hikes puts the damage to borrowing capacity as follows.
| Borrower | Capacity lost after 3 hikes | If two more hikes land |
|---|---|---|
| Single earner on the average wage | $35,800 | $57,600 |
| Couple, two average wages | $71,600 | $115,200 |
A useful rule of thumb sits behind those figures: each 0.25% move takes roughly $12,000 off a single borrower's capacity and roughly $24,000 off a couple's.
Now set that against the price side. Westpac's forecasts imply a Sydney dwelling value decline of about $29,601 between May and December 2026, and about $18,128 in Melbourne. Canstar's Sally Tindall put the mismatch plainly: "Modest property price declines don't necessarily improve affordability when higher mortgage rates are stripping tens of thousands of dollars from buyers' budgets."
Read those two tables together and the conclusion is uncomfortable. A single buyer in Sydney lost around $35,800 of purchasing power while the typical property got around $29,601 cheaper. The gap went the wrong way. If two further hikes arrive, a couple's budget shrinks by roughly 10%, which no realistic price forecast comes close to offsetting.
Who this hits, and who it does not
The damage is not evenly spread, which is why the market has split so sharply.
Buyers who depend on maximum leverage are hit hardest. First-home buyers, single-income households and anyone stretching to the top of their approval feel every basis point. This is the group whose search suburb quietly changes twice a year.
Buyers with large deposits barely notice. Downsizers sitting on decades of equity, households drawing on family assistance and cash-heavy purchasers are constrained by the price of the house, not by a serviceability calculation. They have been the marginal buyer holding parts of the market up.
That split shows in the price data. Cotality found upper quartile values nationally fell 3.2% in the three months to July while the lower-priced tier gained 0.3%. The expensive end, where borrowing constraints bite hardest relative to price, corrected. The affordable end, where cash-constrained buyers compete and the two-speed market is most visible, did not.
If your budget is set by a bank's calculator rather than your bank balance, you are buying in the half of the market that has not become cheaper.
What else moves your number
Rates are the headline, but four other inputs move borrowing capacity by more than most buyers realise, and unlike the cash rate you control all of them.
HEM. Lenders apply the Household Expenditure Measure, a benchmark of minimum living costs, and use the higher of that benchmark or your declared spending. Living costs have risen, so HEM has risen, and capacity has fallen with it even for borrowers whose income went up.
HELP and student debt. Compulsory repayments reduce assessable income, and lenders treat the debt as ongoing unless it will be extinguished shortly. For a graduate on a decent salary, a HELP balance can cost tens of thousands of dollars of capacity.
Credit card limits. Lenders assess your limit, not your balance. A card with a $20,000 limit that you clear monthly still reduces what you can borrow. Cancelling unused cards is the fastest capacity gain available to most applicants.
Buy now, pay later and personal loans. Both now appear in credit reporting and both are read as recurring commitments.
Five ways to protect your borrowing capacity in 2026
- Close unused credit facilities before you apply. Limits, not balances, are what get assessed.
- Clean up three months of statements. Lenders read them. A period of visibly disciplined spending directly supports a HEM assessment based on your actual costs.
- Consider paying down HELP if the balance is small. For a modest remaining balance, clearing it can free up more capacity than it costs.
- Compare lenders rather than assuming they agree. Assessment policies on overtime, bonuses, rental income and casual work vary widely between banks, and the spread between the most and least generous lender on the same file can run into six figures. This is exactly where a mortgage broker earns their fee.
- Stress-test the repayment, not just the approval. Being approved at 9% and being comfortable at 6% are different questions. Our guide to the loan repayment calculator walks through modelling the payment you will actually make.
Pre-approval has a shorter shelf life than you think
In a stable market, pre-approval is a formality you renew when it lapses. In 2026 it is a countdown clock.
Most pre-approvals run for three months. If a rate rise lands inside that window, the number you were given is no longer the number the lender will honour at formal approval, because your file gets reassessed at the current rate. Buyers have gone to auction on a pre-approval issued before a hike and discovered the gap after the hammer fell.
Three practical rules follow. Confirm with your broker or lender whether your pre-approval is fully assessed or system-generated, because the two carry very different weight. Refresh it if a rate decision falls during your search. And never bid to the top of a pre-approval that predates an RBA meeting, particularly at auction where there is no cooling-off period, as our auction playbook sets out.
The compensation: you have leverage you did not have in 2024
None of this means 2026 is a bad year to buy. It means the advantage has moved from budget to conditions.
Auction clearance rates across the combined capitals have sat below 50% since late May and reached the low 40s in June. Median vendor discounting across the capitals widened to 3.6% in the June quarter, up from 3.0% in March. Capital city listings sit 5.7% above the five-year average, and days on market have stretched to about 30 in the capitals.
Those numbers say the same thing from four directions: you can negotiate, and you have time to think. That is worth real money, and it partially offsets a smaller budget. Our guide to buying in a falling market covers how to use that leverage without catching a falling knife, and reading the underlying market signals yourself is free.
A smaller budget spent well in a soft market can beat a larger budget spent badly in a hot one. Getting the negotiation right is a large part of why buyers engage professional help, and GoMatch will match you with a vetted buyer's agent for free.
The limits: your number is yours, not the average
Every figure in this article describes a representative borrower. Yours will differ, potentially by a lot, because lender policy varies, income structures vary, and your existing commitments are your own.
Rates are also moving. The RBA has signalled that further increases remain possible, and one more hike would materially change the tables above. Treat this as a framework for how the pieces interact, then get a current assessment from a lender or broker before you make an offer on anything.
FAQ: borrowing capacity in Australia
How much can I borrow in 2026?
There is no single answer, because lenders assess income, living costs under the HEM benchmark, existing debts and credit limits differently. What is consistent is the test: with the cash rate at 4.35% and new variable rates near 6%, the APRA serviceability buffer of three percentage points means most applications are assessed at around 9%. Get a written assessment from a broker or lender rather than relying on an online estimate.
Why has my borrowing capacity dropped when my income went up?
Three things move against you at once: higher interest rates lift the assessment rate, the HEM living-cost benchmark has risen with inflation, and any new credit facility or HELP debt reduces assessable income. Canstar's analysis put the loss from the three 2026 hikes alone at about $35,800 for a single average-wage earner and $71,600 for a couple.
Should I wait for rates to fall before buying?
That depends on which side of the equation moves first. CBA economists expect the RBA to cut twice in 2027. If rates fall, capacity returns, but so does competition, and prices historically respond quickly. The counter-argument is that in the current market you can negotiate a discount, take your time on due diligence, and buy a property that would have gone to a crowded auction two years ago.
Where this leaves you
The 2026 market is not the buyer's market the headlines describe. It is a market where the terms have improved and the budget has shrunk, and which of those matters more depends entirely on how you are funded.
If your purchase is deposit-constrained rather than serviceability-constrained, the falls are a straightforward discount. If a bank calculator sets your ceiling, treat protecting that ceiling as the main job: clear your credit limits, get your statements in order, shop lenders properly, and keep your pre-approval current through every RBA meeting. Then use the leverage the soft market hands you. All figures here were confirmed against RBA, APRA, Canstar and Cotality releases current in August 2026, and rates move quickly, so check the latest before you commit.
Sources
- Reserve Bank of Australia, Monetary Policy Decision, August 2026.
- ABC News, "Interest rates on hold but RBA governor keeps door open to hikes", August 2026.
- ABC News, "RBA warns of 'rough' time ahead as interest rates rise by 0.25pc to 4.35pc", May 2026.
- Mortgage Professional Australia, "Borrowing capacity falling faster than house prices as rate hikes bite", 2026, citing Canstar analysis and Westpac forecasts.
- APRA, serviceability buffer guidance, 2026.
- Cotality, "Australia's housing market downturn widens", Home Value Index results for July 2026.
- CommBank Newsroom, "Housing market set to soften before stabilising as rates and policy weigh on sentiment", June 2026.
