RBA Analysis Tracks Dwelling Rents as a Persistent Inflation Input

Short summary

An RBA Bulletin analysis published on 27 August 2026 found that dwelling rents made a sizeable and sustained contribution to growth in the household consumption deflator from late 2022 to early 2026.

The analysis does not say rents rose three times faster than the Consumer Price Index. It uses a broader housing treatment than CPI: the consumption deflator includes an estimated rental value for owner-occupied homes as well as rents paid by tenants. CPI instead measures rents for tenants and new dwelling construction costs for owner occupiers.

The paper is a research decomposition of past price growth. It is not a rent forecast, a cash rate decision or a measure of one household's bills.

Read the July 2026 Housing CPI update for the latest index result. Use the Rent-to-Income Ratio Calculator with an actual rent and income, not a national inflation contribution.

What the RBA analysis did

The Bulletin paper breaks growth in the household consumption deflator into broad input-cost contributions:

• labour costs;
• business owner returns;
• dwelling rents;
• import prices;
• net taxes; and
• an unexplained residual.

The author found that all main inputs contributed to elevated household price growth after the pandemic, although their relative importance changed.

Import prices and business owner returns were more important early in the inflation episode. Their contributions later eased. Labour costs and dwelling rents became larger and more persistent contributors from 2023.

The paper compares these contributions with an illustrative case in which the deflator and each component grow at 2.5%. That is a benchmark for the analysis, not a forecast and not the formal measure used for Australia's inflation target.

Household consumption deflator versus CPI

Both measures describe price change, but they are built for different purposes.

An imputed rent is not a bill sent to an owner occupier. It is a statistical estimate of the housing service the owner receives from living in the home.

This wider treatment is why the paper says the dwelling-rent contribution to the consumption deflator was around three times larger than the rent contribution to CPI. The statement is about contribution weights and scope. It does not mean market rents increased at three times the CPI rate.

Why dwelling rents became more prominent

The paper links the sustained rent contribution to the delayed effect of tight rental-market conditions. It notes that housing demand rose alongside the return of international migration after the pandemic.

That is not presented as a single-cause explanation. Rental prices can also reflect the local balance of available homes and households, lease timing, property type, location, condition and regulation.

The RBA analysis says labour costs were also a large and persistent input from late 2022. By contrast, import prices and business owner returns moderated after making larger contributions earlier in the inflation period.

This sequence matters because a broad inflation result can contain different pressures at different times. A falling import-cost contribution does not automatically remove domestic rent or labour-cost pressure.

A practical measurement example

Consider two otherwise similar households:

1. A tenant pays $650 a week in rent.
2. An owner occupier lives in a comparable home and pays no rent to a landlord.

The CPI rent measure records price change for the tenant's rental service. For owner-occupier housing, CPI instead tracks the price of new dwelling construction, excluding land.

The household consumption deflator includes the tenant's rent and an estimated rent for the housing service consumed by the owner occupier. The owner does not actually pay that estimated amount. It is included to measure consumption consistently across different tenure types.

Neither measure can tell the two households how their actual budgets changed. The tenant needs the lease amount, while the owner may need mortgage, rates, insurance, maintenance and utility records.

What it means for calculators and estimates

No RealEstateCalc formula changed because of this paper.

• The Rent-to-Income Ratio Calculator divides the rent entered by the income entered. It does not use national rent inflation.
• The Inflation Calculator tests a constant-rate scenario. It does not reproduce the household consumption deflator or CPI weights.
• The Mortgage Repayment Calculator uses a loan balance, interest rate and term. Imputed rent is not a mortgage input.
• The Market Data dashboard provides economic context, not a household budget or property forecast.

For a current budget, use the amount on the lease, loan statement, rates notice, insurance renewal and utility bill. National price indexes are useful context, but they are not substitutes for those records.

What remains uncertain

• The decomposition is an analytical estimate, not a direct observation of every input.
• The unexplained residual can capture factors that are not cleanly separated.
• National results hide substantial differences by city, region and dwelling type.
• Imputed rent is a statistical measure, not an owner-occupier cash expense.
• A contribution to past inflation does not predict the next rent movement.
• The paper does not determine a future RBA cash rate decision.

The latest ABS CPI release reported annual rent inflation of 3.6% in July 2026 and annual housing-group inflation of 5.0%. Those figures and the Bulletin decomposition answer different questions and should keep their labels.

Sources

• RBA Bulletin: An Input-cost Decomposition of the Household Consumption Deflator, published 27 August 2026 and checked 31 August 2026.
• RBA Bulletin, August 2026, publication index checked 31 August 2026.
• ABS: Consumer Price Index, Australia, July 2026, released 26 August 2026 and checked 31 August 2026.
• RBA: Australia's Inflation Target, checked 31 August 2026.

General information disclaimer

This article provides general information about official price measures and an RBA research analysis. It is not financial advice, tax advice, legal advice, a rent forecast, a property valuation, an interest-rate prediction or a recommendation. Actual rents, housing costs and household budgets vary. Check current ABS, RBA, lease and account information before relying on an amount.

Last updated: 31 August 2026.