In short

As a car ages and loses value, it's reasonable to drop comprehensive insurance, but never drop third party property cover — it protects you against the cost of damage you cause to someone else's car or property, which can run into tens of thousands of dollars and isn't capped by what your own car is worth. Third party property is one of the cheapest policies you can buy.

For most of us, car insurance is a renewal notice we glance at once a year and pay without much thought. But retirement quietly changes the calculation. The car gets older and worth less, you drive far fewer kilometres than you used to, and the cover that made sense at fifty may not be the best fit at seventy. Rethinking it can save you real money — but there's one cost-cutting move in this area that can be genuinely catastrophic, and it's one retirees make all the time with the best of intentions. Here's how car insurance actually works, and how to get it right for where you are now. This article is general information only, not personal advice.

What are the four kinds of cover?

It helps to be clear about what's what, because "car insurance" is really four different things (ASIC MoneySmart, https://moneysmart.gov.au/car-insurance/choosing-car-insurance).

The first is CTP — compulsory third party, known as a "green slip" in some states. You must have it to register your car, and it covers injuries to people caused by your car; it does not cover damage to vehicles or property (ASIC MoneySmart, https://moneysmart.gov.au/car-insurance/choosing-car-insurance). It's arranged differently depending on where you live — bundled in with your registration in some states, bought separately in others — so it's worth checking how it works in your own state, but the key thing to know is that it covers people, not cars, and won't pay a cent towards repairing a vehicle.

The other three are optional, and they build on each other. Third party property damage covers damage your car causes to other people's cars or property — but not your own car. Third party, fire and theft adds cover for your own car if it's stolen or damaged by fire. And comprehensive is the broadest: it covers damage to your own car — collision, storm, theft, vandalism — as well as the damage you might do to others (ASIC MoneySmart, https://moneysmart.gov.au/car-insurance/choosing-car-insurance).

Which cover can you drop — and which should you never drop?

Here's where retirees get into trouble, so it's worth slowing down on. As a car ages and its value falls, it can be perfectly reasonable to drop comprehensive cover. The most an insurer would ever pay you for your own car is roughly what it's worth, and if that's only a few thousand dollars, you might sensibly decide the premium isn't worth it and choose to carry that risk yourself. That's a legitimate call.

The dangerous mistake is going one step further and dropping all cover, reasoning that a cheap car doesn't need insuring. Because the real financial risk was never the value of your car. It's the possibility that you cause an accident that writes off someone else's near-new vehicle, or damages expensive property — and without cover, you are personally liable for the whole cost. A modern car can be worth tens of thousands of dollars; a serious multi-car accident, far more. That's a bill that could wipe out a retiree's savings, all to avoid a modest premium on a cheap old car.

The protection against exactly this is third party property cover, which does not cover your own car but covers the damage your car does to others' — and it's one of the cheapest policies you can buy (ASIC MoneySmart, https://moneysmart.gov.au/car-insurance/choosing-car-insurance). So the sensible position on an older, low-value car is usually this: treat comprehensive as optional, but never go without at least third party property. Whatever your car is worth, keep the cover that protects you from what you might cost someone else.

Agreed value or market value?

If you do hold comprehensive, there's a choice worth making deliberately rather than by default: how the payout is worked out if the car is written off. Agreed value means you and the insurer settle on a set figure upfront — the premium is usually a little higher, but you know exactly what you'll receive, which is useful for a newer car or one you particularly value. Market value means the insurer values the car on its make, model and condition at the time of the claim; the premium is usually lower, but with market value you don't know in advance how much you'll get, and the agreed value is usually higher than the market value (ASIC MoneySmart, https://moneysmart.gov.au/car-insurance/choosing-car-insurance). For an older car, market value is common and often perfectly sensible; the point is simply to choose it knowingly.

Can you pay less as you drive less?

Retirement is one of the best times to cut a car premium, because most retirees drive far fewer kilometres than they did in their working years — and insurers price for that. Look for low-kilometre or pay-as-you-drive policies, make sure the car is listed as driven only by mature drivers, and consider lifting your excess, which lowers the premium in exchange for paying more if you do claim (ASIC MoneySmart, https://moneysmart.gov.au/car-insurance/how-to-save-money-on-car-insurance).

And don't forget that car insurance is a textbook loyalty-tax product: the premium tends to drift up at each renewal while new customers are offered better deals. So rather than auto-renewing, compare and haggle every year — our companion piece on the loyalty tax spells out how. Just be sure, when you're comparing, that you're weighing like for like, and not quietly trading away the third party property cover that matters most.

What do the worked examples show?

These show the two ends of the decision — the old runabout and the newer car. They are illustrative only, not personal advice, and the figures are illustrative.

Consider Norma, 74, a single age pensioner whose 15-year-old car is worth maybe $3,000, who is thinking of cancelling its insurance altogether to save money. On these facts dropping comprehensive is defensible — the most she'd ever get back for the car itself is around $3,000, so self-insuring that risk is a reasonable trade — but dropping all cover is not, because if she rear-ends a $60,000 near-new car the liability falls on her personally, and that bill could swallow her savings (ASIC MoneySmart, https://moneysmart.gov.au/car-insurance/choosing-car-insurance). On these facts it is generally rational for Norma to keep third party property cover — among the cheapest policies there is — drop comprehensive if she chooses, and quietly set aside a small car-replacement buffer so the day the old car dies isn't a shock.

Now consider Robert and Helen, both 68, with a three-year-old car they still value and drive only for local trips and the occasional holiday. On these facts comprehensive still makes sense, and the live decision is how it's valued: an agreed-value policy locks in a known payout for a slightly higher premium, while market value costs less but pays whatever the car is worth at claim time (ASIC MoneySmart, https://moneysmart.gov.au/car-insurance/choosing-car-insurance). On these facts it is generally rational for them to choose the valuation method deliberately, tell the insurer they're now low-kilometre mature drivers to bring the premium down, and compare and haggle at renewal rather than auto-renewing into a creeping loyalty-tax price (ASIC MoneySmart, https://moneysmart.gov.au/car-insurance/how-to-save-money-on-car-insurance).

What about the replacement buffer?

If you decide to self-insure your car — carrying only third party property on an older vehicle — remember what that means in practice. If the car is written off or simply dies, you'll get nothing towards a replacement; you're covered for the liability to others, not for your own loss. That's a reasonable trade to make, but it works best if you've quietly set aside a small car-replacement buffer in your budget, so that the day the old car finally gives out isn't a financial shock. (For how the car itself is treated by Centrelink, our piece on vehicles and the assets test explains that a car is an assessable asset valued at what you'd get for it — Services Australia, https://www.servicesaustralia.gov.au/asset-types.) Match the cover to the car and to what you could comfortably replace yourself, never drop the third party property, choose your values deliberately, and shop around each year — do that, and your car insurance will be doing exactly what it should at this stage of life: protecting you from the big risks without costing you a dollar more than it needs to.

Sources

Key takeaways

  • Car insurance is really four products: CTP (covers injuries, compulsory), third party property (covers damage you cause to others), third party fire and theft, and comprehensive (covers your own car too).
  • As an older car's value falls, it can be reasonable to drop comprehensive cover, since the most an insurer would pay is roughly what the car is worth.
  • Never drop all cover — third party property protects you from the cost of damaging someone else's car or property, which can run into tens of thousands of dollars and isn't limited by your own car's value.
  • If you hold comprehensive, choose between agreed value (a set payout, higher premium) and market value (payout based on condition at claim time, lower premium) deliberately.
  • Retirees can often cut premiums by using low-kilometre or pay-as-you-drive policies, listing the car as driven only by mature drivers, lifting the excess, and comparing and haggling each year rather than auto-renewing.

Frequently asked questions

What are the four types of car insurance in Australia?

CTP (compulsory third party, covers injuries to people, required to register your car), third party property (covers damage your car causes to others' cars or property), third party fire and theft (adds cover if your own car is stolen or damaged by fire), and comprehensive (the broadest, covering damage to your own car as well as others).

Should I drop comprehensive car insurance on an old car?

It can be a reasonable decision. As a car ages and its value falls, the most an insurer would pay for your own car is roughly what it's worth, so if that's only a few thousand dollars, you might sensibly decide the premium isn't worth it and self-insure that risk.

Why should I never drop all car insurance, even on a cheap old car?

Because the real financial risk isn't the value of your car — it's causing an accident that damages someone else's near-new vehicle or property. Without cover, you're personally liable for the full cost, which could run into tens of thousands of dollars and potentially wipe out your savings. Third party property cover protects against exactly this, and it's one of the cheapest policies available.

What's the difference between agreed value and market value car insurance?

Agreed value means you and the insurer settle on a set payout figure upfront, for a slightly higher premium — useful for a newer or valued car. Market value means the insurer pays whatever the car is worth at claim time based on make, model and condition, for a lower premium, but you don't know the exact payout in advance.

A note on advice. This article is general information only and doesn't account for your personal circumstances. Everyone's situation is different — before acting, it's worth talking it through with a licensed adviser who knows your full picture.