Inflation and your retirement: why the price of staying still keeps rising

The post-pandemic years gave Australian retirees a reminder that had been dormant for nearly two decades. After a long stretch of low inflation, the sharp rise in 2022 and 2023 — with headline CPI peaking at around 8.4% in December 2022, according to the Australian Bureau of Statistics — demonstrated that purchasing power erosion can be rapid when conditions shift. For people still working, inflation is inconvenient but manageable: wages eventually catch up, and there is flexibility to adjust. For retirees, inflation is structural. Income is largely fixed, the retirement period stretches decades, and even modest inflation compounds quietly into meaningful real-income loss.

Why does retirement amplify the inflation problem?

Three features of retirement make inflation more consequential than it was during the working years. First, most retirement income is fixed or semi-fixed in nominal terms — the Age Pension adjusts by formula, super drawdowns are set by the member subject to minimums, and annuities are locked at the rate purchased. None of these respond to inflation the way wages can. Second, the retirement period is long: a couple retiring at 67 in reasonable health may be planning for twenty-five or thirty years of income, and over that span even moderate inflation accumulates. At 2% per year, the price of a basket of goods roughly doubles over thirty-six years. At 3%, it doubles in approximately twenty-four. A retirement income that feels comfortable at the start may feel materially constrained by the end. Third, the inflation experienced by retirees often differs from the headline consumer price index figure — healthcare, dental, optical, aged care, and for renters, housing, all tend to rise faster than the CPI average. The household inflation rate for a retiree with significant healthcare needs can exceed the published figure by a percentage point or more.

Why do real returns matter more than nominal returns in retirement?

A return of 6% in an environment of 3% inflation is a real return of 3%. A return of 4% in an environment of 1% inflation is also a real return of 3%. An 8% return in a 7% inflation environment produces a real return of only 1%. The same nominal figure can be a strong outcome or a weak one depending on inflation. For retirement income planning, real returns — what investments actually earn above the rate of inflation — are what fund genuine purchasing power over a long retirement. A plan built on nominal returns alone is missing half the picture.

How do different retirement income sources handle inflation?

The Age Pension (the means-tested government payment administered by Services Australia) is indexed twice yearly, on 20 March and 20 September each year. The rate is adjusted to the higher of the Consumer Price Index, the Pensioner and Beneficiary Living Cost Index — a CPI variant that tracks spending patterns more representative of pensioner households — and a benchmark linked to Male Total Average Weekly Earnings. In practice, this means the Age Pension generally keeps pace with both prices and wages over time. Retirees who depend primarily on the Age Pension are reasonably well protected against inflation risk.

Defined benefit pensions from Commonwealth schemes — the CSS (Commonwealth Superannuation Scheme), PSS (Public Sector Superannuation Scheme), and MilitarySuper — are typically CPI-indexed twice yearly under their scheme rules. The detail varies between schemes, and older or less common arrangements may have different provisions, but CPI protection is the standard for the major Commonwealth schemes.

Account-based pensions — the drawdown phase of most superannuation balances — carry the inflation risk entirely with the member. The drawdown amount is chosen by the member (subject to minimum percentage requirements), and whether it keeps pace with inflation depends on whether the member increases their drawdown and whether the underlying investments grow to support it. A retiree who sets a fixed annual drawdown and leaves it unchanged will find their real income declining every year as prices rise. This is not necessarily wrong — spending often does fall in the later years of retirement as activity levels reduce — but it should be a deliberate choice rather than something that happens by default.

Lifetime annuities divide sharply into two types: CPI-indexed annuities, which guarantee a real income stream but cost more to purchase, and fixed-nominal annuities, which are cheaper but lose real value with every passing year. The choice between them — and where an annuity fits alongside other retirement income — is one of the more consequential decisions in structuring a retirement income portfolio.

What practical approaches help build inflation resilience in retirement?

Several strategies help a retirement income portfolio stay ahead of inflation over time. Maintaining meaningful equity exposure — rather than retreating entirely into cash and fixed-interest investments — is perhaps the most fundamental, because long-term equity returns have historically outpaced inflation. Australian Treasury Indexed Bonds, issued by the federal government and available directly or through managed funds, provide a direct inflation-linked return that is backed by the Commonwealth. CPI-indexed annuities, where affordable, convert the inflation risk on that portion of income into a certainty. For investors with property exposure, real assets like direct property and listed infrastructure trusts have historically provided some inflation hedge, though with their own liquidity and volatility trade-offs.

The approaches to avoid are those that lock in low fixed nominal income for extended periods. An unindexed fixed annuity or long-dated fixed-rate bond purchased when yields are low may look safe but produces poor real outcomes if inflation rises even modestly. Safety and real purchasing power are not the same thing.

What is the inflation risk for housing costs in retirement?

For retirees who own their home with the mortgage paid off, housing costs are relatively contained: council rates, home insurance, and maintenance rise over time but at a manageable pace. For retirees who rent, the picture is different. Rental costs tend to track the broader housing market, and Commonwealth Rent Assistance — the government supplement available to eligible pensioners who rent in the private market — has historically not kept pace with actual rent increases. For long-term renter retirees, housing inflation is one of the central financial planning challenges and warrants specific attention rather than an assumption that the Age Pension will cover it.

Where should retirees start with inflation risk?

The most useful question to start with is: which parts of my income are indexed, and which are not? For most retirees, the Age Pension component is reasonably protected. The account-based pension component is not automatically protected — protection depends on investment returns and the choice to increase drawdowns over time. Understanding which bucket carries the inflation risk makes it possible to address that risk deliberately, rather than discovering it progressively as purchasing power erodes.