# B-T03-M-01: What affects a New Zealand car insurance premium besides the make and model?

Collected 11 October 2026

[Car insurance study](https://nzbrands.ai/research/insurance/car-insurance)

## ChatGPT

Answer ID: c985a52d-37a1-4d13-a6e5-a457e26c21e3

In New Zealand, car insurance premiums depend on more than just the make and model. Insurers assess how likely you are to make a claim, how much that claim could cost, where the car is kept, and the level of cover you choose. The exact weighting varies between insurers. [Car insurance](https://www.consumerprotection.govt.nz/help-product-service/cars/paying-registering-insuring-car/car-insurance)[Car and Motorcycle Cover Costs](https://www.ami.co.nz/car-insurance/car-premiums)[ICNZ Consumer Guide 2024](https://www.icnz.org.nz/wp-content/uploads/2026/01/ICNZ-Consumer-Guide-2024-%E2%80%93-Insurance-Pricing.pdf)

## The main factors that affect your premium

### 1. Driver details and driving history

- Age and driving experience: Younger and less experienced drivers often pay more.
- Licence type: Learner and restricted licence holders may face higher premiums or excesses.
- Claims history: Previous accidents and insurance claims can increase your premium, particularly if you were at fault.
- Driving record: Speeding offences, other driving convictions and licence infringements may affect the price.
- Other drivers: Adding a young driver or someone with a poor driving history can increase the cost, depending on the policy.

[Car insurance](https://www.consumerprotection.govt.nz/help-product-service/cars/paying-registering-insuring-car/car-insurance)[Car insurance buying guide](https://www.consumer.org.nz/money/insurance/car-insurance/guide)[Car and Motorcycle Cover Costs](https://www.ami.co.nz/car-insurance/car-premiums)

### 2. Where you live and park

- Location: Areas with more traffic, accidents, theft or vandalism can attract higher premiums.
- Parking arrangements: A locked garage or secure off-street parking may reduce the perceived risk compared with parking on the street.
- Local repair costs: Repair costs and the availability of repair services can differ across New Zealand.

[How much does car insurance cost?](https://www.mas.co.nz/hub/how-much-does-car-insurance-cost/)[Your insurance premium](https://www.aainsurance.co.nz/premiums)[ICNZ Consumer Guide 2024](https://www.icnz.org.nz/wp-content/uploads/2026/01/ICNZ-Consumer-Guide-2024-%E2%80%93-Insurance-Pricing.pdf)

### 3. How you use the car

- Private versus business use: Business use, such as deliveries or work-related driving, may require different cover.
- Driving frequency: Your mileage and how often you drive may matter to some insurers.
- Who drives it: A car used by several people may be priced differently from one driven by a single named driver.

Make sure you describe the car's actual use accurately, as incorrect information could affect a future claim. [Car insurance](https://www.consumerprotection.govt.nz/help-product-service/cars/paying-registering-insuring-car/car-insurance)[Car and Motorcycle Cover Costs](https://www.ami.co.nz/car-insurance/car-premiums)

### 4. The type and amount of cover

- Level of cover: Comprehensive cover generally costs more than third-party or third-party, fire and theft cover.
- Insured value: A higher agreed value or sum insured usually means a higher premium.
- Optional extras: Windscreen cover, roadside assistance, rental-car cover and other benefits can add to the cost.
- Excess: Choosing a higher excess can lower your premium, but you will pay more yourself if you make a claim.

[Car insurance](https://www.consumerprotection.govt.nz/help-product-service/cars/paying-registering-insuring-car/car-insurance)[Car insurance buying guide](https://www.consumer.org.nz/money/insurance/car-insurance/guide)[Understanding how premiums are calculated](https://www.bnz.co.nz/support/insurance/general-insurance/understanding-how-premiums-are-calculated)

### 5. Vehicle condition and security

- Modifications: Performance upgrades, lowered suspension and other alterations can affect the price.
- Anti-theft protection: Alarms and other security measures may qualify you for a lower premium.
- Theft risk: Some vehicles attract a higher theft excess, which can also affect the overall value of a policy.

[Car insurance](https://www.consumerprotection.govt.nz/help-product-service/cars/paying-registering-insuring-car/car-insurance)[Car insurance buying guide](https://www.consumer.org.nz/services/car-insurance/guide)[The cost of car and motorcycle cover. Explained.](https://www.state.co.nz/car-insurance/car-premiums)

### 6. Payment choices and wider insurance costs

- Payment frequency: Some insurers charge less if you pay annually rather than monthly.
- Multi-policy discounts: Insuring your car and home or contents with the same provider may qualify you for a discount.
- Repair and parts costs: Rising labour costs, parts prices and increasingly complex vehicle technology can push premiums up.
- Government levies and insurer costs: Levies, GST, reinsurance and the insurer's own operating costs contribute to the final price.

[Your insurance premium](https://www.aainsurance.co.nz/premiums)[Car insurance](https://www.consumerprotection.govt.nz/help-product-service/cars/paying-registering-insuring-car/car-insurance)[ICNZ Consumer Guide 2024](https://www.icnz.org.nz/wp-content/uploads/2026/01/ICNZ-Consumer-Guide-2024-%E2%80%93-Insurance-Pricing.pdf)

## How can you reduce your premium?

Here are five practical steps:

1. Compare at least three insurers using the same cover level and insured value.
2. Consider a higher excess if you could comfortably afford it after an accident.
3. Review your cover and extras to make sure you aren't paying for benefits you don't need.
4. Ask about discounts for secure parking, eligible security devices or combining policies.
5. Check your policy details at renewal, particularly the main driver, insured value and claims history.

The New Zealand government's [Consumer Protection car insurance guide](https://www.consumerprotection.govt.nz/help-product-service/cars/paying-registering-insuring-car/car-insurance) provides further advice on comparing policies and reducing costs. [Car insurance](https://www.consumerprotection.govt.nz/help-product-service/cars/paying-registering-insuring-car/car-insurance)[ICNZ Consumer Guide 2024](https://www.icnz.org.nz/wp-content/uploads/2026/01/ICNZ-Consumer-Guide-2024-%E2%80%93-Insurance-Pricing.pdf)

One important point: the cheapest premium isn't necessarily the best deal. Compare the excesses, exclusions, theft conditions and payout value as well as the annual price. Two insurers can quote quite different premiums for the same car and driver because they assess risk differently.

## Gemini

Answer ID: 469a1269-b26d-43e4-b253-f7d579b16cdf

In New Zealand, car insurance premiums are calculated based on an individual's overall risk profile. Aside from the make and model of the vehicle, insurers consider a wide range of driver, policy, and environmental factors:

### 1. Driver Profile and History
* **Age and Experience:** Younger drivers (especially under 25) and those on learner or restricted licenses typically face higher premiums and higher excesses due to statistical risk. Some insurers also adjust rates for older drivers.
* **Driving and Claims History:** Your "no-claims bonus" (or no-claims discount) lowers your premium if you haven't made any claims. Conversely, past accidents, traffic violations, or insurance claims within the last few years will usually drive your premium up.
* **Additional Drivers:** Who else has access to the car matters. Listing or excluding young/inexpensive drivers on the policy can directly increase or decrease the cost.

### 2. Location and Parking
* **Where the Car is Kept Overnight:** Insurers look at statistical data for your area. Parking your car on the street in a high-density urban environment or an area with higher rates of vehicle theft and accidents will generally cost more than parking it securely in a locked garage.

### 3. Usage and Purpose
* **How the Car is Used:** Whether you use the vehicle for private/social purposes, regular commuting to work, or for business use affects the price. Business use or high annual mileage usually increases premiums because the car spends more time on the road.

### 4. Policy Structure and Coverage
* **Type of Cover:** Choosing comprehensive cover costs significantly more than third-party, fire, and theft, or basic third-party-only insurance.
* **Market Value vs. Agreed Value:** Choosing an "agreed value" (a fixed payout amount if the car is written off) can impact your premium compared to relying on fluctuating "market value".
* **Excess Amount:** The voluntary excess you choose (the amount you pay out-of-pocket when making a claim) acts as a lever. Selecting a higher excess typically lowers your regular premium, while a lower excess raises it.

### 5. Vehicle Security and Modifications
* **Anti-Theft Devices:** Having a professionally installed alarm, immobiliser, or tracking device can sometimes qualify you for a discount.
* **Modifications:** Non-factory modifications (such as performance upgrades, custom paint, or lowered suspension) can alter your risk profile and increase costs.

### 6. Macro-Economic and Industry Factors
* **Inflation and Repair Costs:** Rising costs for specialized parts, technology (like sensors in modern bumpers), and labor across New Zealand repair shops heavily influence overall premium adjustments.
* **Government Levies and Taxes:** New Zealand car insurance policies include compulsory government-related charges, such as the **Fire and Emergency New Zealand (FENZ) levy** and **Goods and Services Tax (GST)**, which are factored into the final cost.

## AI Overviews

Answer ID: 16770343-2595-4e2f-8b6d-211fb345dac9

Aside from the vehicle's make and model, New Zealand car insurance premiums are calculated using a blend of **personal, geographical, policy-specific, and external economic factors**.

An overview of what influences how much you pay includes:

1\. Driver Profile & History

 * **Age and Experience:** Drivers **under 25** years old statistically face much higher premiums due to a higher frequency of claims. Drivers between 30 and 60 generally receive the lowest rates.

 * **Claims & Driving History:** Having clean records with zero recent at-fault accidents or traffic violations keeps costs low. Many insurers reward this with a **No-Claims Bonus (NCB)** or discount.

 * **Intended Use:** Using the car solely for private use or commuting is cheaper than using it for business purposes, which increases time spent on the road and premium costs.

2\. Location & Storage

 * **Geographic Risk:** Areas with dense traffic or higher rates of vehicle theft and vandalism incur higher premiums.

 * **Overnight Parking:** Parking the vehicle in a **locked garage** or off-street driveway reduces risk and lowers premiums compared to leaving it parked on the street.

3\. Policy Structures

 * **Type of Cover:** Choosing Comprehensive cover costs the most because it covers accidents, theft, and natural disasters. Third Party Only (covering only damage you cause to others) is the cheapest.

 * **Sum Insured Type:** Choosing an **Agreed Value** (a fixed payout amount agreed upon with your insurer) provides certainty but often costs more than opting for **Market Value** (the car's retail worth just before an accident).

 * **Excess Amount:** The excess is the amount you pay out-of-pocket when making a claim. Opting for a **higher voluntary excess** lowers your regular premium payments.

 * **Named Drivers:** Restricting the policy strictly to named, older drivers—and explicitly excluding drivers under 25—can reduce costs.

4\. External Costs & Government Levies

Even if your personal details stay the same, external components can cause premiums to shift annually:

 * **Government Levies and Taxes:** Total costs include New Zealand’s **15% GST** and the **Fire and Emergency New Zealand (FENZ) levy** , which is capped at a fixed **$25 per vehicle annually** (plus GST).

 * **Global Reinsurance & Climate Events:** Following major natural disasters in New Zealand (such as Cyclone Gabrielle or extreme regional flooding), the global cost for insurance companies to insure themselves ("reinsurance") spiked, which trickled down into standard car insurance premiums.

 * **Inflation and Repair Complexity:** The rising cost of mechanic labour and the advanced technology embedded in modern cars (like proximity sensors and reversing cameras) mean even minor bumper scratches are significantly more expensive to repair than they used to be.

* * *

If you are currently reviewing your car insurance, I can help you look at ways to manage your costs. For instance, would you like to explore **how to safely lower your premium** or look into the **differences between market and agreed value**?

## Google AI Mode

Answer ID: 50debf07-5a48-44f2-b1a5-824c5da1596b

Aside from your car's make and model, _New Zealand_ insurers (such as Tower Insurance and AA Insurance) evaluate a wide array of driver, location, and policy variables to calculate your premium.

Driver and History Factors

 * * **Driver Age and Experience:** Younger drivers (especially under 25) and older drivers (70+) often face higher premiums due to statistical risk profiles or changes in reaction times/health. Drivers in their 30s to 60s generally attract the lowest risk ratings.

 * **Claims and Driving History:** Your personal track record—including past at-fault accidents, traffic infringements, or insurance claims made within the last 3 to 5 years—directly increases your risk score.

 * **Named vs. Unnamed Drivers:** Specifying who regularly drives the car matters. Allowing younger or unlicensed/inexperienced drivers under 25 access to the vehicle will raise the cost. [Tower Insurance NZ]

 *

Location and Environmental Factors

 * * **Parking and Location:** Where the car is kept overnight (locked garage, driveway, or street parking) and the physical address where it is predominantly parked influence the rate. High-density urban areas, suburbs with higher vehicle theft rates, or locations prone to natural hazards (like flood zones or earthquake risks) cost more to insure.

 *

Policy and Cover Choices

 * * **Agreed vs. Market Value:** Choosing an **agreed value** (a fixed set amount agreed upon with the insurer) versus a **market value** (what the car is worth right at the time of the claim) affects your calculation.

 * **Excess Amount:** The voluntary excess (the amount you agree to pay out-of-pocket when making a claim) is inversely related to your premium. Opting for a higher excess lowers your regular premium, while a lower excess raises it.

 * **Type of Cover:** Comprehensive cover costs significantly more than third-party, fire and theft, or basic third-party-only insurance.

 * **Optional Add-ons:** Including extras like roadside assistance, rental car cover after an accident, or protected no-claim bonuses will adjust the final total. [Tower Insurance NZ]

 *

External and Macro Factors

 * * **Inflation and Repair Costs:** Broader economic factors like the cost of specialized parts, local labor rates, and supply chain delays heavily influence overall industry pricing.

 * **Government Levies and Taxes:** Total costs include compulsory government charges such as the **Fire and Emergency New Zealand (FENZ) levy** and Goods and Services Tax (**GST**).

 *

Would you like to explore **ways to reduce your specific car insurance premium** or look into how changing your **excess or cover type** impacts the cost?
