The hardest problem in retirement isn’t saving the money — it’s not knowing how long it has to last. Retire at 67 and you might need income for 20 years or 35; nobody knows in advance. An annuity is the one product built specifically to solve that problem: you hand over a lump sum, and in return you get a guaranteed income, either for a set number of years or for the rest of your life. That certainty is the whole point.
This guide explains how annuities work in Australia, when they make sense, and their trade-offs. It’s a cluster under our retirement planning pillar, and it’s the natural counterpart to account-based pensions — the flexible-but-uncertain option.
What an annuity is
An annuity is a contract, usually bought from a life insurance company, that converts a lump sum — often from your super — into a series of guaranteed regular payments. Unlike an account-based pension, the income doesn’t rise and fall with markets: it’s promised by the provider regardless of how investments perform. You trade flexibility and growth potential for certainty.
The two main types
- Lifetime annuities pay a guaranteed income for as long as you live, no matter how long that is. This is the purest hedge against longevity risk — the risk of outliving your savings.
- Fixed-term annuities pay a set income for a chosen number of years. At the end of the term you may receive a residual capital value, depending on the product.
Because annuity income is insulated from share-market swings, they appeal to retirees who prioritise stability over the growth and access that an account-based pension offers.
Longevity risk: the problem annuities solve
Longevity risk is the central challenge of self-funded retirement. Draw down an account-based pension too fast and you may run out; draw too cautiously and you under-spend the retirement you worked for. A lifetime annuity removes that guesswork for the portion of your money you put into it — the income simply keeps coming for as long as you live. Pooling this risk across many people is what lets providers guarantee lifetime income, and it’s something no self-managed drawdown strategy can fully replicate on its own.
Pros and cons
Advantages
- Guaranteed income — predictable payments make budgeting easy and remove market anxiety.
- Protection from market risk — your income isn’t affected by downturns.
- Longevity protection — a lifetime annuity can’t be outlived.
- Potential Age Pension benefits — certain annuities receive favourable treatment under Centrelink’s means tests, which can lift your Age Pension entitlement.
Disadvantages
- Limited flexibility — your capital is largely locked in; access to lump sums is restricted.
- Inflation risk — unless you buy an inflation-linked annuity, the real value of fixed payments erodes over time.
- Complexity — features vary widely between providers and products can be hard to compare.
- Opportunity cost — money in an annuity isn’t exposed to the potential growth of shares or other investments.
How annuities fit a retirement plan
Annuities are rarely used as the sole source of retirement income. The most common approach is a blend:
- Put a portion of your super into a lifetime annuity to guarantee income for your essential, non-negotiable expenses (housing costs, food, utilities).
- Keep the rest in a flexible account-based pension for discretionary spending, lump-sum access and growth.
This “floor and upside” structure gives you certainty for the essentials and flexibility for everything else. It can also improve your Age Pension position, because some annuities are assessed more favourably under the means tests than an equivalent amount held in an account-based pension.
A quick illustration
A retiree with $700,000 in super might direct $250,000 to a lifetime annuity that guarantees a set income for life, covering their essential bills, and leave $450,000 in an account-based pension for travel, home upgrades and emergencies. If markets fall, the annuity income keeps flowing regardless — and the guaranteed floor lets them stay invested for growth with the rest.
Key considerations before buying
Compare products carefully
Rates and features vary between providers. Get quotes from more than one, and compare payment options, indexation (inflation-linking), death benefits and any residual value.
Match it to essential expenses
A useful rule is to annuitise roughly the amount needed to cover your non-negotiable spending, and keep the flexible remainder invested.
Understand the Centrelink treatment
Because some annuities are means-tested favourably, they can interact usefully with the Age Pension — but the rules are detailed, so it’s worth checking your specific situation.
Weigh certainty against flexibility
The core trade-off is guaranteed income versus locked-away capital. If you value certainty and want to hedge longevity, that trade may be worth it; if you want maximum flexibility, an account-based pension may suit better.
Fixed-term vs lifetime: which suits you?
The choice between the two main annuity types comes down to what risk you’re most worried about.
A fixed-term annuity guarantees income for a set number of years — say 10 or 15 — and can be a good fit if you want certainty for a specific period. Retirees sometimes use one to bridge a gap: guaranteeing income from, say, 60 to 67 until the Age Pension begins, or covering the years before another income source kicks in. Some fixed-term annuities return a residual capital value at the end of the term, so you’re not necessarily spending the whole lump sum.
A lifetime annuity guarantees income for as long as you live, which is the only product that truly eliminates longevity risk. The trade-off is that if you die early, you may receive less than you paid in (unless the product includes a death benefit or guarantee period). That’s the nature of pooling — those who live longer are effectively subsidised by those who don’t, which is exactly what makes a lifetime guarantee possible.
For many retirees the answer isn’t either/or: a fixed-term annuity handles a defined near-term need, while a lifetime annuity underwrites income into very old age.
What annuity rates depend on
Because annuities are priced by providers rather than set by the market you invest in, a few factors drive how much income a given lump sum will buy:
- Interest rates. Higher prevailing rates generally mean better annuity income, which is part of why annuities have drawn renewed interest in recent years.
- Your age (and life expectancy). The older you are when you buy a lifetime annuity, the higher the income, because it’s expected to be paid for fewer years.
- Indexation. Choosing inflation-linked payments lowers your starting income in exchange for protection against rising prices.
- Death benefits and guarantee periods. Features that pay something to your estate if you die early reduce the income you receive while alive.
Comparing quotes on a like-for-like basis — same term, same indexation, same guarantees — is essential, because a headline rate means little without the fine print.
Common misunderstandings
- “An annuity is all or nothing.” Most retirees annuitise only part of their savings.
- “Payments always keep up with prices.” Only inflation-linked annuities do; fixed ones lose real value over time.
- “It’s the same as an account-based pension.” No — annuities guarantee income and lock in capital; account-based pensions are flexible but market-exposed.
Related reading
Compare the flexible alternative in account-based pensions, see how guaranteed income affects your entitlement in the Age Pension guide, and fit annuities into your broader strategy via the retirement planning pillar and how much money you need to retire.
This article is general information only and not financial or tax advice; consider your own circumstances and speak to a licensed adviser or the ATO before acting.