Three demerit points on a driver’s licence can mean very different CTP premiums depending on the insurer. One brand might quote $620 for an NSW green slip, while another wants more than $800 for the same vehicle and the same accrued demerit points.
The gap arises from how each insurance company interprets driving history under the NSW CTP scheme.
Quick overview: how demerit points fit into CTP
In NSW, three things sit at the centre of this story:
CTP is compulsory
- Every New South Wales driver must hold compulsory third party (CTP) insurance before paying car’s registration.
- CTP, or CTP green slip, covers injuries to other drivers, passengers and pedestrians in a motor vehicle accident.
CTP does not cover the car itself
- It does not cover accidental damage to your own car.
- That sits with new comprehensive car insurance or other general insurance products.
Demerit points are one pricing signal
- When insurers are calculating car insurance premiums and setting a CTP premium, demerit points help flag a possible high risk driver.
- They sit alongside vehicle, postcode, age, claims history and other factors in NSW CTP insurance.
SIRA and the NSW government decide which rating factors are allowed.They do not require all insurers to price penalty points in the same way. That is where the “lottery” starts.
Do all NSW CTP insurers charge the same for demerit points?
They do not. All CTP insurers in NSW apply SIRA’s pricing rules, but they each set their own loads for demerit points.
Key things insurers can rate on include:
- Vehicle type and vehicle use (private, business, rideshare)
- Garaging postcode and local crash risk
- Driver age and licence type, including unrestricted licences
- Driving record, driving offence history and claims history
- At‑fault motor accident records over recent years.
How they treat demerit point balance inside that mix is where prices spread out:
- Some New South Wales drivers see a small increase in CTP insurance when moving from zero demerit points to a few points.
- Others find that once they reach four to six points, the cheapest CTP policy from a brand drops away and higher‑priced options remain.
External data shows:
- Every extra point can add a large amount to the cheapest green slip.
- Three or more points can add more than $280 compared with a clean licence.
For rules on how many demerit points you can have and how demerit points work, see:
- Demerit Points System in NSW
- All You Need To Know About Demerit Points in NSW
Those guides explain the demerit point limit, what counts as too many demerit points, and what happens if a licence is suspended.
How do demerit points affect CTP premiums?
Demerit points sit beside other risk factors, not above them. They still matter. Insurers usually look at:
- Vehicle type – small car, ute, SUV, motorcycle
- Vehicle use – private, business or both
- Garaging postcode – traffic volume and crash rates
- Driver age and licence type – including unrestricted licences vs provisional
- Driving history – speeding, mobile phone, serious driving offence entries
- Claims history – at‑fault motor accident records in recent years.
Common demerit‑point offences include:
- Speeding above the speed limit
- Using a mobile phone while driving
- Running a red light
- Parking in a disabled space without a permit.
Higher‑risk behaviour can add more points in one go, such as:
- Heavy speeding
- Driving during a fire ban with a fire risky object
- Other serious driving offence categories.
In simple terms:
- More demerit points, closer together in time, often equals a higher risk flag.
- A higher risk flag can mean a higher CTP premium and higher car insurance premiums.
For a bigger picture on pricing, see How is the CTP insurance price set for each motor vehicle?
It explains the role of vehicle class, fund levy, support scheme charges and how the NSW CTP scheme funds medical expenses, lifetime care and other insurance products for severely injured people.
Why the same demerit points create a “lottery” between insurers
The rules are shared. The risk models are not.
Behind the scenes:
- Every CTP insurer uses its own data on crashes, claims and customer profiles.
- Each brand decides how much extra risk it sees from a certain number of demerit points.
That means:
- Insurer A might see three demerit points and a clean claims history as manageable.
- Insurer B might see the same history and put the driver in a much higher risk band.
The result at quote time:
- Two drivers with similar driving history and accrued demerit points can get very different CTP premium offers.
- One brand only adds a small load; others quote hundreds more for the same CTP insurance.
Market examples show:
- Every extra point can add around $100 to the cheapest green slip.
- Three or more points can add more than $280 against a clean licence.
Other reasons prices change are covered in:
- Why Did My Green Slip Quote Change?
- How Often Do CTP Prices Change?
Those pieces cover postcode shifts, insurer price reviews and more. This article stays on one slice: demerit points CTP insurer difference.
Which CTP insurer is best if a driver has demerit points?
There is no single “best” insurer for everyone with points. “Most forgiving” depends on the driver. Things that usually change the result include:
- Vehicle – small car vs ute vs high‑performance model
- Driving record – low points vs many demerit points and claims history
- Address in NSW – low‑risk vs busy traffic areas
- Licence type – older, stable licence vs newer licence
- Work use – including any limited ABN business use.
Patterns in the market:
- Some insurers chase NSW drivers with clean licences and price any penalty points hard.
- Others are more open to moderate demerit point levels if there are no recent motor vehicle accident claims and the vehicle type is low risk.
Rather than guessing:
- It makes sense to compare offers from every CTP insurer.
- That shows who is truly most forgiving for a specific profile, not in general.
Greenslips 4 Earth helps with this part:
- The Green Slip Compare Prices & Why CTP Rates Change guide explains how to compare green slip prices.
- The Greenslips 4 Earth calculator shows in real time how driving history and number of demerit points affect quotes from each insurer.
For timing questions, Should I Switch CTP Insurer This 2026? looks at:
- When to review providers
- How new traffic offences or address changes can move a driver into a new risk band.
Can drivers reduce the impact of demerit points?
Drivers cannot erase valid demerit points early. They can reduce how much those points cost them.
Useful steps:
Check the current demerit point balance
- Use a myServiceNSW account or the Service NSW Check your demerit points tool.
- This shows how close the driver is to the demerit point limit and how recent offences were.
Get fresh quotes
- Collect quotes from each CTP insurer, not just last year’s provider.
- A changed driving record can move a driver to a different brand’s “sweet spot”.
Avoid more traffic offences
- Follow tips from Driving Dos and Don’ts in NSW and Safety Tips for First-time Drivers.
- Adopt smoother and safer habits from Eco-Friendly Driving to Lower Your CTP Insurance Premium.
- These help drivers drive safely, stay within the speed limit, and lower the chance of another driving offence.
Some brands also offer:
- Extra rewards for drivers who keep a clean record over time
- Offers that can soften higher insurance premiums caused by past demerit points.
Over time:
- Fewer new offences mean fewer new points.
- Older points expire, which can improve offers on car insurance and CTP.
For optional cover, Compare Car Insurance in Australia explains:
- How claims history, prior motor accident records and demerit points affect comprehensive car insurance costs.
- How the cover’s extent differs between CTP and comprehensive.
- What happens to any unused portion of a policy if it is cancelled mid‑term.
What happens if a driver reaches the demerit point limit?
Reaching the demerit point limit can trigger a licence suspended notice from Transport for NSW.
During suspension:
- The driver cannot legally drive.
- Compulsory insurance does not change that position.
Suspension can also affect CTP:
- It can be harder to adjust a CTP policy or renew car’s registration while suspension issues are unresolved with Service NSW.
- In some cases, insurers may review the policy or consider policy cancellation if the vehicle can no longer be legally used.
For the legal side of offences, see:
- NSW Traffic Fines and Penalties: Understanding the Consequences of Traffic Offences
- Impaired Driving: CTP Insurance and Legal Consequences
These explain how traffic offences, penalty points and fines interact, and how too many demerit points affect both licence status and standing with any CTP insurer.
What to do next
If there are already accrued demerit points on the record, one message stands out.
The same points do not cost the same amount with every CTP insurer.
In NSW, brands use different pricing models under the same NSW CTP scheme, so comparing options matters.
Checking demerit points through Service NSW, gathering key details, then using green slip comparison and calculator tools shows how each CTP insurance provider treats a particular driving history.
With Greenslips 4 Earth, drivers can compare all licensed NSW insurers in one place.
Each eligible policy also supports tree‑planting projects that help offset transport emissions.
These steps can reduce how much demerit points cost each year.
They also help drivers keep the cover they need if a motor vehicle accident injures other people on the road.
