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Car insurance costs explained

Discover some of the factors impacting car insurance costs, some of the things to consider when renewing your policy, and ways you may be able to reduce your premium at renewal time.

How are car insurance costs calculated?

The amount of money you pay each month or year to be covered by insurance, is called a ‘premium’.

Everyone’s situation is different, so we work out the premium by looking at a range of factors that relate to you, such as the level and type of cover you’re after, the level of risk involved, your age, location and driving history.

It’s worth noting that premiums aren’t set in stone. A quote you receive today might look a little different at a later date, simply because the factors that influence pricing can shift over time.

When we calculate the cost of your premium, we consider things like:

  • Expected claims cost (likelihood of a claim and anticipated cost of a claim)
  • commercial considerations for NRMA Insurance
  • choice of excess and policy options
  • minimum and maximum premium
  • government charges.

For more detail, read our Premium, Excess and Discounts Guide1.

What’s the average cost of car insurance in Australia?

The average cost of comprehensive car insurance in Australia from 2019 to 2024 was $1052, according to the Insurance Council of Australia. Keep in mind, that’s an average across the 5-year period for comprehensive insurance only, and more current research from other sources has the average figure considerably higher.

For some drivers with newer or high‑value cars, car insurance costs could be considerably more.

Generally, comprehensive cover such as our Comprehensive Car Insurance tends to cost more than other levels of car insurance cover, because it intends to offer the most complete level of protection, such as cover for damage to your own car as well as others on the road.

On the other hand, third party car insurance options such as Third Party Property Damage Car Insurance usually costs less, as these policies intend to only cover damage you cause to someone else’s vehicle or property.

Rather than relying solely on averages, it’s often more helpful to focus on your own personal circumstances and the level of cover you feel comfortable with. Get a quote with us and choose a policy that fits your needs, not just the typical price range.

Can I control the cost of my car insurance by changing the excess amount?

Yes. Excess is the out-of-pocket amount you might have to pay in the event of a claim. Often opting to have a higher excess at claims time, can help reduce what you pay meaning lower premiums when you first buy your policy or when you renew your policy, which could help you manage your monthly or annual insurance costs.

Read more at: What is an excess and who pays it?

Are there discounts available that could help reduce the cost of my car insurance?

Yes. We offer a range of discounts that could apply to eligible insurance policies:

  • Relationship Discount – you could qualify for a Relationship Discount when you’ve had an eligible policy with us for 5 years in a row2.

  • Multi-Product Discount – you could qualify for a Multi-Product Discount when you have 2 or more eligible policies with us3. For more information about how our discounts work, visit our customer discounts page.

  • Online Discount – you could get up to 10% off your first year’s premium when you buy an eligible policy online4.

Why do car insurance premiums often increase over time?

There’s a number of things that can contribute to rising car insurance costs at renewal time including:

Repair and replacement costs
Inflation can impact costs across the board, from the price of parts and materials, to vehicle towing and storage fees, government levies and duties, and the affordability of labour costs set by repairers. These factors make it more expensive to repair and replace cars, which can increase insurance prices at renewal time.

Car complexity
New cars are becoming more complex, with specialised systems like Advanced Driver Assistance Systems (ADAS) or adaptive cruise control. These systems can require their own parts and materials, along with dedicated testing and calibration tools that are operated by repairers with advanced training.

Reinsurance costs
Reinsurance is insurance for insurers. It helps guarantee our ability to pay out claims, especially after a major event like severe weather (bushfire, flood, or storm). As Australia continues to experience more severe weather events, reinsurance costs have gone up, which may impact premiums at renewal time.

Costs of a claim
Insurance premiums generally reflect the likelihood of claims in the future and the anticipated costs of a claim, if one is made. This means estimates can change year to year, even if your personal circumstances at renewal time remain the same.

Things to consider at car insurance renewal time

Pricing is an important consideration, but it’s not the only one. Along with your budget, the type of insurance you choose may also be influenced by your lifestyle; such as your driving habits, who else uses your car and whether you’ve recently relocated.

Here are some questions you can consider during renewal time:

Has the value of your car changed?
Over time, the value of your car may depreciate based on its age. Lifestyle changes could also mean that you’re driving your car more or less often than you used to. There may no longer be finance, like a loan or a lease, on your car. Check your details at renewal time, including your excess, and consider whether your policy suits your current circumstances and car usage.

Read more at: What is an excess and who pays it?

Have you reviewed the sum insured for your car?
Unless you have selected third party property car insurance, your vehicle will be covered for a sum insured. 

The sum insured you have selected is displayed on your Certificate of Insurance. You may have had the option to select a sum insured that is either the market value or agreed value of your car. For market value, we calculate your car’s value at the time of a claim, if one is made. For agreed value, you nominate a fixed amount from a range of values we provide. When you renew, you can review your agreed value sum insured and make sure it still reflects the current value of your car.

Read more at: What does sum insured mean?

Have you changed your residential address or added occasional drivers?
You might have changed where you live or where you store your car (in a garage or on the street). You might have started to share your car with more drivers, such as a spouse or teenage kids. Check you’ve got the details right for the authorised drivers on your policy, including their ages.

Read more at: Do I need to add occasional drivers to my policy?

Have you considered a different level of cover to suit your needs and budget?
We have a range of car insurance policies to help you find one that suits your needs. Take some time to review our policies and what’s best for you. 

Need to make a change?

To update your policy, you can make changes in your online account or contact us for more options.

Why should I renew with NRMA Insurance?

As Australia’s most trusted insurance brand 4 years in a row5, we’ve been protecting what matters most to Australians for 100 years.
But what do you get for renewing your car insurance policy with NRMA Insurance?

Here when disaster strikes

We strive to be the first insurer in and last insurer out during major disasters. That means you’ve got real people to talk about what to do after a major event and how to recover.

Service that suits your needs

Whether you want to give us a call, use our app or manage your insurance online, we’re here to help wherever you are.

Rewards and offers 

With our Help Hub, you can get access to offers and discounts, discover safety challenges to help reduce your risk in and outside of the home, and get Priority Assistance.

Lifetime guarantee 

We provide a lifetime guarantee on the workmanship of all authorised repairs for as long as you own the car.

Ready to renew your car insurance policy?

Renew and manage your policy, update your details and more in your online account or the NRMA Insurance app.

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Things you should know

  1. The NRMA Insurance Car Insurance Premium, Excess and Discounts Guide should be read with and forms part of the NRMA Insurance Car Insurance Product Disclosure Statement and Policy Booklet (PDS) prepared on 10 September 2023. It applies to all policies with a commencement date on or after 21 April 2024 or with a renewal effective date on or after 1 July 2024. The guide provides further information about the cost of your insurance and excesses you may need to pay if you make a claim. The capitalised terms used in the guide have the same meaning as those used in the PDS.

  2. Any applicable discounts may be subject to minimum premiums. Discounts only apply until a minimum premium is reached. When we determine your premium on renewal, we may also limit any increases or decreases in your premium by considering factors such as your previous year’s premium amount. You may not save more by staying with us longer if a minimum premium is reached, or we have limited increases or decreases in your premium.

  3. Any applicable discounts may be subject to minimum premiums. Discounts only apply until a minimum premium is reached. When we determine your premium on renewal, we may also limit any increases or decreases in your premium by considering factors such as your previous year’s premium amount. You may not save more with more eligible products if a minimum premium is reached, or we have limited increases or decreases in your premium. When we complete the Multi-Product Discount calculation, we will use the policy start date of your policy, not the date that you purchase your policy. As such, policies must be purchased in order of their start date so that the discount can be appropriately applied.

    Any applicable discount is applied in tiers based on the number of eligible policies only. Maximum tier reached at 9 eligible policies. Existing policies will not be eligible for any new discount tier until renewal. We sometimes refer to this as the “multi-policy discount”.

  4. See the full details of the online discount. Any applicable discounts may be subject to minimum premiums. Discounts only apply until a minimum premium is reached. When we determine your premium on renewal, we may limit any increases or decreases in your premium by considering factors such as your previous year's premium amount.

  5. NRMA Insurance has been awarded Australia’s most trusted general insurance brand in the Roy Morgan Trusted Brand Awards 2022–2025.