Green Slip (CTP) in NSW — how to actually compare and save $150-$300
Six insurers, one product, vastly different prices. Here's how to read the SIRA comparator without getting hosed.
Green Slip (Compulsory Third Party insurance) is the one form of car insurance you legally cannot avoid in NSW. It covers injury to other people if you cause an accident. Six insurers offer essentially the same product — but premiums vary by up to $400 on the same car at the same address.
The six NSW CTP insurers in 2026
- Allianz
- AAMI (Suncorp)
- GIO (Suncorp)
- NRMA (IAG)
- QBE
- Youi
Use the SIRA Green Slip comparator
Always start at greenslips.nsw.gov.au — the official SIRA tool quotes all six insurers in 60 seconds. Never accept the first renewal quote from your current insurer without running it.
What drives the price
- Vehicle class (passenger, ute, motorcycle).
- Garaging postcode (Bondi is ~30% pricier than Penrith).
- Driver age range (under 25 adds ~25%).
- At-fault claim history.
- Demerit points (4+ pushes price up materially).
Sydney suburb premium examples
| Suburb | Cheapest 2026 quote | Dearest 2026 quote |
|---|---|---|
| Bondi (2026) | $650 | $890 |
| Parramatta (2150) | $590 | $810 |
| Penrith (2750) | $510 | $720 |
| Newtown (2042) | $620 | $870 |
Indicative for a 40-year-old, 2020 Mazda CX-5, no claims. Get your own quote — these move quarterly.
What CTP doesn't cover
- Damage to your own car (that's comprehensive).
- Damage to other people's property (that's third-party property).
- Theft (comprehensive only).
- Your own injury if at fault (income protection or TPD).
Where CTP sits in the total cost of getting the car on the road
Buyers routinely budget the purchase price and forget everything that follows it. A Green Slip is only one line in that list, and it is the line you cannot negotiate away. Setting the whole sequence out before you commit stops the familiar situation where the car is bought and the money for the first round of maintenance is not there.
- The Green Slip itself, which must be in place before registration can transfer into your name.
- Registration and duty payable to Service NSW on transfer.
- Comprehensive or third-party property insurance, which is a separate product from CTP.
- Anything the inspection found with life left in it but not much — brakes and tyres are the usual pair.
- The first service if the book shows one is due or overdue.
The inspection line item that changes the maths
Insurance costs are largely fixed by the vehicle, the driver and the address. Condition is the variable you can still act on before you hand over money. Our inspectors measure the wear items and scan the vehicle's modules, so the near-term spend stops being a guess: you know whether the brakes are a next-year job or a next-month one, and whether the engine and transmission are logging faults the dash is not showing you.
Common questions
Can I get a Green Slip refund?
Yes — cancel via your insurer in writing. Refunds calculated pro-rata to days remaining minus $40 admin.
Does Green Slip transfer to a new owner?
Yes, the Green Slip stays with the car for the rego period. New owners benefit until next renewal.
Lock in your inspection
Book a mobile pre-purchase inspection at the seller's address. Same-day slots across Sydney from $199, with a written repair cover on Elite (30 days / up to $3,000).
Mobile inspections near you