"The average rent increase in Australia was X% this year" gets quoted constantly, by landlords justifying an increase and by media covering the rental market. The number is real, but it is also a blend of very different experiences. Here is what the data actually shows, and how to use it without being misled by it.
What this covers
- Headline CPI vs the ABS rents sub-index, and why they diverge
- The historical trend: 2022 to now
- Why national averages understate what renters actually face at lease renewal
- How vacancy rates are driving the gap between CPI and asking rents
- How to use average data in a negotiation without overstating it
Two different numbers get called "the average rent increase"
When someone cites "the average rent increase," they are usually referring to one of two different ABS figures, and the two tell different stories.
Headline CPI measures the change in prices across the entire consumer basket: food, fuel, housing, health, and everything else. It is the number the RBA targets and the one most commonly reported.
The rents sub-index is a component within CPI that measures rent prices specifically. It is calculated from a rolling sample that includes both tenants who just had an increase and tenants who did not, which means it moves more slowly than what a tenant negotiating a fresh notice actually experiences.
The trend since 2022
| Year (to December) | Headline CPI | General trend |
|---|---|---|
| 2022 | 7.8% | Peak inflation period, rates rising sharply |
| 2023 | 4.1% | Easing but still well above target band |
| 2024 | 2.4% | Back within RBA's 2-3% target band |
| 2025 | ~2-3% (indicative) | Broadly stable within target band; confirm against the latest ABS release |
Headline CPI figures for 2022-2024 are published ABS data. The 2025 figure is indicative based on the RBA's stated target band; verify the exact figure against the most recent ABS Consumer Price Index release before citing it in a negotiation or dispute application.
The rents sub-index has run above headline CPI in most quarters across this period. Tight vacancy has meant landlords face little competitive pressure to hold rents at general inflation, even as headline CPI cooled through 2024 and 2025.
Why vacancy is the number that actually explains the gap
Vacancy rates below 2% in Sydney, Melbourne, and Brisbane through 2025 and into 2026 mean landlords in those cities have faced very little pressure to price competitively to retain or attract tenants. When supply is tight, asking rents can run ahead of general inflation regardless of what the RBA does with the cash rate.
This is covered in more detail, alongside the other pressures pushing rents up in 2026, in why rent might increase in Australia in 2026.
Why the average understates what you might be facing
A national or state average blends every tenancy in the sample, including long-term tenants who have not had an increase in over a year and tenants who just signed at a lower rate. If your notice lands at lease renewal after 12+ months without an increase, your landlord is often catching up to market in one move rather than tracking the smoothed average.
This is why a 15-20% increase can be consistent with a national average of 4-6%: the average includes everyone, and your specific notice reflects a single point-in-time adjustment for one property.
None of this makes a large increase automatically fair. It means the average is a starting comparison, not a ceiling or a verdict.
Compare your specific increase, not just the average
Enter your current rent and the proposed new rent. The calculator works out your landlord's replacement cost and gives you a break-even rent and three counter-offer tiers, specific to your numbers rather than a national average.
Calculate my counter-offerHow to use average data in a negotiation
The average rent increase figure is a legitimate opening reference point, but it works best combined with two more specific numbers.
- Start with the average as context."Headline CPI has been running at 2-3% for the past year" sets a baseline your landlord cannot dispute, because it is public ABS data.
- Move to your postcode. If you are in NSW, pull the median for your postcode from NSW Rent Check. In other states, use current comparable listings from Domain and REA. This is more specific and more persuasive than the national average.
- Finish with replacement cost. The break-even rent from the calculator tells your landlord the number below which keeping you is still their better financial outcome. This is the number most likely to move a negotiation, because it speaks to their incentives rather than a general statistic.
For the full negotiation approach, see how to negotiate a rent increase in Australia. To assess whether your specific notice passes both the CPI and replacement cost tests, see is my rent increase reasonable?
If your increase is well above the average
A proposed increase significantly above both headline CPI and the rents sub-index is not automatically invalid, but it shifts the burden onto your landlord to justify it against comparable properties in your specific area, not general market commentary. If negotiation does not resolve it, each state has a dispute process:
| State | Dispute path | Guide |
|---|---|---|
| NSW | NCAT | Dispute guide |
| VIC | VCAT | Dispute guide |
| QLD | RTA conciliation, then QCAT | Dispute guide |
| WA | Commissioner for Consumer Protection, then Magistrates Court | Dispute guide |
The takeaway
The average rent increase is real data, and it is useful context. It is not, on its own, a verdict on whether your specific increase is fair. Use it as an opening reference, then move to postcode-level market evidence and your landlord's actual replacement cost, the two numbers that carry the most weight in an actual negotiation or dispute.
Run your specific numbers
Enter your current rent and the proposed new rent. The calculator shows the landlord's replacement cost, the break-even rent, and your counter-offer range. Free, no sign-up, 30 seconds.
Calculate my counter-offer