Key Takeaway: You can lower your car insurance premium in Australia by increasing your excess, building a no-claim discount, comparing quotes annually, bundling policies, and improving your vehicle’s security. Small adjustments to your cover level and driver nominations can also deliver significant savings while maintaining appropriate protection.

Car insurance premiums in Australia can vary significantly between insurers and drivers. Whether you hold comprehensive cover, third party property, or third party fire and theft, understanding how insurers calculate your premium gives you the power to reduce it. The strategies below combine immediate changes you can make today with longer-term habits that build savings over time.

1. Increase Your Excess

Your excess is the amount you pay out of pocket when you make a claim. Insurers offer lower premiums to drivers who accept a higher excess, because you share more of the risk. Most policies let you choose a voluntary excess on top of the compulsory excess (which varies by insurer and driver profile).

Increasing your voluntary excess from A$500 to A$1,000 can reduce your premium by 10 to 20 per cent, but only choose an excess you can genuinely afford to pay if you need to claim. According to the Insurance Council of Australia, choosing an excess you cannot afford may leave you unable to repair your vehicle after an accident (Insurance Council of Australia, 2026).

2. Build and Protect Your No-Claim Discount

A no-claim discount (also called a no-claim bonus) rewards drivers who do not make claims. Each claim-free year typically increases your discount, and after four or five years you may receive up to 60 per cent off your base premium.

Protect your no-claim discount by considering whether small claims are worth making. If the repair cost is only slightly above your excess, paying out of pocket preserves your discount and may save you more in the long run. Some insurers also offer no-claim discount protection as an optional extra, which lets you make one claim without losing your accumulated discount.

3. Compare Quotes From Multiple Insurers Annually

Premiums vary widely between insurers for the same level of cover. Comparing at least three quotes each year before renewal ensures you are not overpaying. Use comparison websites as a starting point, then request direct quotes from insurers to confirm the details.

When comparing, check that the cover level, excess, and inclusions match across quotes. The cheapest policy may exclude important features such as hire car cover or windscreen replacement. ASIC MoneySmart recommends reviewing your Product Disclosure Statement (PDS) carefully to understand what is and is not covered (ASIC MoneySmart, 2026).

4. Bundle Multiple Policies With One Insurer

Many insurers offer discounts when you hold more than one policy with them. Bundling your car insurance with home insurance, contents insurance, or another vehicle can reduce your total premium by 5 to 15 per cent.

Before bundling, compare the combined cost against separate policies from different insurers. Bundling is only worthwhile if the discount genuinely delivers overall savings and each policy still meets your needs.

5. Improve Your Vehicle Security

Insurers reward vehicles with strong security features because they are less likely to be stolen or damaged. Installing an approved alarm, immobiliser, or GPS tracking device can reduce your premium. Parking in a locked garage overnight rather than on the street also lowers your risk profile.

When you upgrade your security, notify your insurer immediately. Some insurers require proof of installation, such as a receipt or certificate from the installer, before applying the discount.

6. Choose Your Vehicle Wisely

The make, model, and age of your car directly affect your premium. High-performance vehicles, luxury cars, and models with expensive parts cost more to insure. Vehicles with strong safety ratings and lower theft rates attract lower premiums.

Read also: How to Choose the Right Car Insurance Coverage for Your Needs

If you are buying a new car, request insurance quotes for your shortlisted models before you commit. A vehicle that costs A$2,000 less to purchase may cost A$500 more per year to insure, changing the total cost of ownership significantly.

7. Pay Your Premium Annually

Paying your premium in one annual payment rather than monthly instalments typically saves 5 to 10 per cent. Monthly payments often include an administrative fee or interest charge, which adds up over the year.

If paying annually is difficult, set aside a portion of your income each month into a separate savings account so the lump sum is available when your policy renews.

8. Nominate Experienced Drivers Only

If your policy allows you to nominate specific drivers, limiting cover to experienced, older drivers reduces your premium. Adding a young or newly licensed driver increases the insurer’s risk and raises your cost.

Be honest when nominating drivers. If an unlisted driver has an accident while driving your vehicle, your insurer may refuse the claim or reduce the payout. The savings from restricting drivers are only worthwhile if the restriction reflects how your vehicle is actually used.

9. Review Your Cover Level

Comprehensive cover protects you against the widest range of risks, but it is also the most expensive. If your vehicle is older or has a low market value, switching to third party property or third party fire and theft may deliver significant savings.

As a guide, if your vehicle is worth less than A$5,000 and you have the funds to replace it yourself, downgrading your cover may be cost-effective. Always weigh the premium savings against your ability to absorb the financial loss if your vehicle is written off.

10. Keep Your Details Up to Date

Changes in your circumstances can lower your premium. Moving to a postcode with lower theft or accident rates, changing your occupation, or reducing your annual mileage all affect your risk profile. Notify your insurer whenever these details change.

Similarly, remove modifications or accessories that increase your premium if you no longer use them. Insurers adjust premiums based on current information, so keeping your policy details accurate ensures you are not overpaying.

Conclusion

Lowering your car insurance premium in Australia requires a combination of smart choices at policy selection and ongoing attention to your cover. Start by comparing quotes, adjusting your excess to a level you can afford, and protecting your no-claim discount. Over time, improvements to vehicle security and careful driver nominations compound your savings. Review your policy annually and update your details whenever your circumstances change to ensure you maintain appropriate cover at the best available price.

General Advice Warning: This article provides general information only and does not take into account your objectives, financial situation, or needs. Before acting on any information in this article, you should consider whether it is appropriate for you and read the relevant Product Disclosure Statement (PDS). Consider obtaining personal advice from a licensed insurance adviser regarding your individual circumstances. Cover terms, premiums, and availability vary by insurer and by state or territory. Always verify current details with a licensed adviser before making a decision.