Most arguments about the cost of living in Australia are not really arguments about numbers. They are arguments about which number to use. A national inflation figure, a household-type index and an income-versus-prices research measure can all be accurate and still point in different directions, because they answer different questions. This guide is about locating the official and authoritative sources yourself, so you can settle a claim rather than repeat one.
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What the official measures actually count
Start with the definition, because it controls everything you read afterwards. The Australian Bureau of Statistics (ABS) states that the price indexes it publishes "provide summary measures of the movements in various categories of prices over time."
That single sentence carries three consequences worth understanding before you quote anything:
- An index measures movement, not affordability in dollars.
- It measures movement for a basket of goods and services, not for your household's actual spending pattern.
- It is a summary, which means some individual items move far more than the headline figure suggests.
The ABS's Selected Living Cost Indexes (LCIs) narrow the question. Rather than describing the whole economy, they are published by household type, using one national index per type, with quarterly and annual movement expressed as a percentage. That household-type framing is the reason two people can look at the same release and see different stories: their circumstances sit in different parts of the table.
A separate line of work sits alongside this. POLIS: The Centre for Social Policy Research at the Australian National University publishes a research note setting out the methodology used by CSRM to calculate a quarterly living standards index and cost of living index for Australia. As POLIS describes it, this measure "compares income growth for Australian households with their cost of living."
That comparison is the useful part. Price indexes tell you what prices did; they cannot tell you whether household incomes kept pace. POLIS also flags a common substitution error: a number of other Australian measures are "often used as a proxy for household living standards, such as the ABS' Gross National Income measure," but that is defined for the entire economy rather than for households. Using a national income aggregate as a household wellbeing measure will mislead you even when both numbers are correct.
Inside the ABS Selected Living Cost Indexes release
This is the primary release for household-type cost-of-living comparison. Here is what to check each time you open it.
Which reference period you are looking at. Index releases are tied to a specific quarter or period, and the release page states it. One table in the current publication carries the reference period December 2025. A cost-of-living number without its reference period attached is not usable.
Where you are in the release calendar. The ABS lists its current release for this series as June 2026, and the following release (September 2026) with a scheduled publication date of 3 February 2027. Release dates matter because indexes are revised and re-referenced over time; quoting an old release as "the latest" is the most common citation mistake.
The household-type table itself. Search the release for the table headed along the lines of "Selected Living Cost Indexes (LCIs) by household type, Australia, quarterly and annual movement (%)". Read the quarterly and annual columns separately — they answer different questions. The annual column smooths out seasonal price behaviour; the quarterly column shows recent direction.
The methodology page. The ABS publishes a methodology document alongside the release (listed for the June 2026 edition). Read it before making comparisons across releases, particularly around how each household type is constructed and how the basket weights are set.
Access path: the release sits under the ABS statistics section for Economy → Price Indexes and Inflation → Selected Living Cost Indexes, Australia, with the "Latest Release" page as the entry point.
What the data showed in early 2026 — and how to cite it
Reporting on new ABS data, ABC News said on 4 February 2026 that annual living costs increased for all household types, "by between 2.3 and 4.2 per cent last year," while noting that pressures are being felt by all households but some are being hit harder than others.
Two details from that reporting are worth carrying into how you use it:
- The range exists because the household types differ. A single "cost of living went up X per cent" claim discards the finding the release was designed to produce.
- Ben Phillips, an economic and social researcher at the Australian National University, told the ABC the data showed positives for employee households where the primary source of income was wages and salaries.
Treat those percentages as a snapshot of the period that release covered, not as a standing fact. Confirm the current figures directly against the ABS release before repeating them, and name the source and reference period when you do — for example, "according to the ABS Selected Living Cost Indexes release covering [reference period], annual movement for [household type] was X per cent, as reported by [outlet]."
How to read an index release in five steps
- Open the ABS latest release page and write down the reference period before anything else.
- Confirm whether the figure is quarterly or annual movement. They are not interchangeable.
- Identify the household type that matches your question, not the one closest to your household — they are constructed categories.
- Check the methodology note for that edition if you are comparing against an earlier release.
- If your question is about wellbeing rather than prices, add the POLIS/CSRM living standards index, which pairs income growth against cost of living rather than reporting prices alone.
Choosing the right source
| If your question is... | Start with | Keep in mind |
|---|---|---|
| How did prices move for different household types? | ABS Selected Living Cost Indexes | quoted ? quarterly vs annual movement differs; check the reference period |
| What is the broad measure of price movements in the economy? | ABS price indexes generally | these are summary measures across the whole economy, not households |
| Did incomes keep up with prices for households? | POLIS/CSRM living standards and cost of living indexes | research methodology; read the research note before comparing to ABS figures |
| Is economy-wide income a fair stand-in for household living standards? | No — POLIS notes Gross National Income is defined for the entire economy, not households | using it as a household proxy is a known error |
(Question marks in any table you build should become explicit questions to resolve, not guesses.)
Questions to verify before you rely on a figure
- Is this the current release? Check the ABS release date against the stated next release date.
- Am I comparing like with like? Different index families use different baskets, weights and household definitions.
- Am I reading movement or level? Percentage movement is not the same as dollars spent.
- Whose commentary am I reading? Media reporting is useful for interpretation, but quote the underlying ABS or POLIS source for the number itself.
- Does my situation actually resemble the household type? Indexes describe categories. Individual circumstances vary.
If you need to understand how these figures apply to your own circumstances, consider speaking with a registered financial counsellor or qualified adviser. Nothing here is personalised advice.
Your next step
Pick one question and trace it to source. Open the ABS Selected Living Cost Indexes latest release, note the reference period, and read the household-type table for the annual column. Then read the POLIS research note to see whether the income side of the story changes your conclusion. Doing those two things in order takes less time than reading commentary about them, and leaves you able to cite the origin.
Where household cost reviews turn to the housing line of the budget, Australian Today's home loans guide explains how repayments are structured and what to check.
This article is general information only. It is not legal, tax, financial, credit or migration advice, and it does not predict outcomes or recommend any provider. Figures change with each release; always confirm details with the Australian Bureau of Statistics, POLIS, and the relevant official source before relying on them.