You lock your car, pay your premium on time, and figure you’re covered. But 88% of Australian drivers believe they’re adequately insured, according to the 2025 Youi Under the Hood Report — yet the same study found that only 58% have actually read their full Product Disclosure Statement. That gap between confidence and knowledge is where the real costs live. The average national premium now sits at roughly $2,600 a year, and with premiums rising about 6% annually, believing the wrong thing about your policy can cost you thousands out of pocket.
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This article is general information only and does not constitute professional advice. For your specific situation, consult a qualified professional.
About 80% of Australian drivers hold some form of voluntary car insurance beyond Compulsory Third Party, according to the Youi data. But carrying a policy and understanding what it actually covers are two different things. The research tells a clear story: most people overestimate their protection and underestimate the fine print. Here’s what you actually need to know.
What You Actually Need to Know About Car Insurance
The central concept that trips most people up is the excess — the amount you pay toward a claim before the insurer pays the rest.
What I tend to notice is that many drivers treat their policy like a safety net that catches everything — and then discover the hard way that it’s full of holes they didn’t know existed. The rules around modifications and declared extras are a good example of something that seems straightforward but catches people regularly.
The Real Cost of Common Coverage Gaps
Not all car insurance is the same, and the type you choose determines what you’re on the hook for. The table below shows the four main coverage levels available in Australia and what each one actually protects.
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| Coverage Type | What It Covers | What It Doesn’t | Typical Cost vs Comprehensive |
|---|---|---|---|
| Comprehensive | Your car, others’ property, theft, fire, storm, hail, flood, vandalism, glass | Mechanical wear and tear, personal belongings (beyond limits), unlisted drivers | Full price (baseline) |
| Third Party Fire & Theft | Others’ property, plus fire and theft of your own car | Accidental damage to your own car | 40–60% of comprehensive |
| Third Party Property Damage | Damage to others’ cars and property | Any damage to your own vehicle | Typically the cheapest voluntary cover |
| Compulsory Third Party (CTP) | Personal injuries to others (legally required for registration) | Vehicle or property damage of any kind | Included in or added to registration |
Comprehensive cover is generally recommended for vehicles worth more than $5,000–$10,000, according to Your Finance Guide. Below that, third-party fire and theft may make more sense — but only if you’re comfortable walking away from your own car if it’s damaged in an accident you caused.
Drivers under 21 can pay 50–100% more in premium than a 30-year-old for the same policy. That’s not a myth — it’s how insurers price risk. And a clean claims history can earn you up to a 65% discount, which is worth protecting by avoiding small claims that you could cover yourself.
That meter tells you something important: 42% of drivers haven’t fully read their policy document. Given that 88% think they’re adequately covered, there’s a clear mismatch between confidence and actual knowledge. Reading the PDS isn’t just a formality — it’s where you find out whether your specific situation is covered.
Five Myths That Leave Drivers Out of Pocket
Myth: “I’m not at fault, so I won’t pay anything”
Many drivers assume that if someone else caused the accident, they’re off the hook for costs. That’s not how it works. Even with comprehensive cover, you may still need to pay your excess upfront. The insurer only waives it if you can provide the at-fault driver’s name, address, and vehicle registration — and they’re insured. Without that information, you pay the excess and then wait for the insurer to recover it. If you’re comparing policies, check whether the insurer always charges an excess even when the accident isn’t your fault.
Myth: “Modifications don’t matter if I don’t tell the insurer”
Insurers treat undeclared modifications as a material change to the risk they agreed to cover. Cosmetic upgrades like custom rims or a paint job are usually fine if reported. But performance modifications — turbo kits, engine upgrades, suspension changes — can lead to a claim being reduced or refused entirely. The AAMI guide on car insurance myths makes this clear: you must ensure your car’s ‘amount covered’ can afford to replace those accessories and modifications. If you haven’t updated your sum insured, you’re underinsured.
Myth: “Personal belongings are covered if they’re in the car”
This is one of the most common misunderstandings. Comprehensive policies typically cover personal items only up to a limit — often $1,000 total after expenses, per incident, according to Suncorp’s myth-busting guide. Items like phones, laptops, and sunglasses may be covered, but you’ll need receipts and invoices to verify value. Higher-value items usually need a separate contents insurance policy with specified portable valuables cover. Tools of trade are often excluded entirely and may require business insurance.
Myth: “Anyone driving my car is covered”
Most policies cover only listed drivers. If an unlisted driver causes an accident in your car, you may face an additional excess or the claim could be refused. Learner drivers don’t need to be listed, but they must be added once they get their Ps. Drivers under 25 are often excluded from driving high-performance vehicles entirely. The Autohero guide on car insurance myths recommends adding any regular drivers to your policy to avoid claim rejections.
Myth: “Car insurance covers mechanical breakdowns”
General wear and tear and mechanical breakdowns are not covered by any standard car insurance policy. That’s what regular servicing is for. Some insurers offer optional roadside assistance as an add-on — AAMI Roadside Assist, for example, is available with comprehensive cover but doesn’t kick in during the first 24 hours after purchase. It covers towing, flat batteries, and lockouts, but not the cost of repairing a worn-out engine or gearbox.
How to Match Your Cover to What You Actually Drive
Start with your car’s value
If your car is worth more than $5,000–$10,000, comprehensive insurance is usually the right call. Below that, you need to decide whether you can afford to replace it yourself. Third-party fire and theft typically costs 40–60% of a comprehensive premium and still covers fire and theft of your own vehicle — but not accidental damage you cause. If your car is worth under $3,000, third-party property damage alone might be enough, but remember that covering the other driver’s repairs is the real financial risk.
Choose your excess level carefully
A voluntary excess of $500–$2,000 can reduce your premium by 10–20%, according to Your Finance Guide. But you need to have that cash available if you need to claim. If you’re a new driver or have a history of minor incidents, a lower excess might save you stress even if it costs more per month. The sweet spot depends on your savings buffer and your driving record.
Check who’s driving and what’s on the car
List every regular driver on your policy. If you’re under 25 or have a high-performance vehicle, expect higher premiums — but that’s still better than a refused claim. Declare all modifications, even cosmetic ones. If you’re unsure whether something counts as a modification, check your insurer’s definition or ask directly. The essential tips for new drivers cover this in more detail.
Compare annually — don’t auto-renew
Premium variation between insurers can be up to 30% for the same coverage level. Auto-renewing means you’re almost certainly overpaying. Set a reminder to compare quotes a few weeks before your renewal date. If you’re a low-mileage driver, pay-per-kilometre policies might save you more than a traditional annual policy.
What’s changing in the near future
Insurance technology is evolving fast. Telematics (black box) policies are becoming more common in Australia, and some insurers are starting to factor in real driving behaviour rather than just age and postcode. The future of car insurance tech is worth watching if you’re a safe driver who could benefit from usage-based pricing. Keep an eye on your insurer’s communications about these options — they may not advertise them widely.
Frequently Asked Questions About Car Insurance Misconceptions
Does the colour of my car affect my premium? ▾
If I park in a garage, will my premium be cheaper? ▾
Can I insure a car that’s not in my name? ▾
What happens if an unlisted driver crashes my car? ▾
Does comprehensive cover include a hire car while mine is being repaired? ▾
Is there a waiting period for roadside assistance after I buy it? ▾
Why the Myths Persist — and What Changes That
The Youi report found that 47% of drivers are very confident about the claims process, yet 7% are not familiar with it at all. That’s a lot of people who might only discover what their policy doesn’t cover when they’re standing on the side of the road. The gender gap is real too: 88% of men are confident in their understanding versus 77% of women, according to the same study, despite women reading the PDS at similar rates. Confidence doesn’t equal knowledge.
What shifts the needle is reading the actual document. The 58% of drivers who read their full PDS are far less likely to be caught out by the myths above. If you haven’t read yours, that’s the single most effective step you can take. Pair it with an annual comparison shop, and you’re ahead of most drivers.
Remember: this article is general information only. For advice on your specific situation, speak to a qualified professional.
If this was useful, you might also want to read Fighting a Car Insurance Claim Denial: Your Rights and Recourse in Australia.
Sources and Further Reading
Affordable Car Insurance Tips for Young Drivers in Australia — Practical strategies for drivers under 25 who face the steepest premiums.
Tips for Car Insurance with Roadside Hazard Coverage — What to look for when adding roadside assistance to your policy.
Youi Insurance (2025). Under the Hood Report: Australians’ Understanding of Car Insurance and Claims. 🔗
Your Finance Guide (2026). Car Insurance Australia 2026 Guide. 🔗
AAMI (n.d.). Car Insurance Myths Debunked. 🔗
MoneySmart (n.d.). Choosing Car Insurance. 🔗
