Guide
Car Insurance vs ACC in New Zealand
ACC and motor insurance cover two different things in New Zealand. ACC handles people; motor insurance handles vehicles and property. The two operate side by side under separate legal frameworks.
The two systems
ACC (Accident Compensation Corporation)
ACC is New Zealand's universal no-fault personal-injury cover scheme established under the Accident Compensation Act 2001. Under section 20 of that Act, ACC covers treatment, rehabilitation and (in some cases) weekly compensation for personal injury — including injury sustained in or by a motor vehicle.
Because ACC covers personal injury, New Zealand has no equivalent to the "bodily injury liability" portion of motor insurance found in most other OECD countries. You cannot sue another driver in NZ for compensation for personal injury caused by their negligence on the road — that pathway is statute-barred under section 317 of the Accident Compensation Act 2001 in favour of the ACC scheme.
Motor insurance
Motor insurance is a private contract between you and an insurer that covers damage to vehicles and property. It does not cover personal injury (that's ACC's responsibility). Motor insurance comes in three standard tiers in NZ:
- Comprehensive — damage to your own vehicle plus damage you cause to other people's property
- Third Party, Fire & Theft — damage you cause to other people's property, plus fire and theft of your own vehicle
- Third Party — damage you cause to other people's property only
None of these tiers include personal-injury cover for the driver, passengers or third parties — ACC covers all of those.
How the ACC motor vehicle levy works
ACC funds the Motor Vehicle Account from two sources, per the ACC Motor Vehicle Account page:
- A levy on petrol at the pump
- The Motor Vehicle Licensing levy (paid annually as part of your rego)
This levy is what funds ACC cover for everyone injured in or by motor vehicles on NZ roads. It applies regardless of whether you hold a motor insurance policy — every registered NZ vehicle contributes via rego, and every petrol purchase contributes via the petrol levy.
Where ACC and motor insurance interact
At-scene injuries
If anyone is injured in a motor accident — driver, passenger, pedestrian, cyclist — call 111. ACC covers their treatment costs and (where applicable) rehabilitation. Your motor insurance is not involved in their personal-injury claim; you don't need to lodge anything with your insurer for that aspect.
Vehicle damage
Damage to your own vehicle (if Comprehensive or TPFT and the incident type is covered) and to other parties' vehicles or property (if you have Third Party cover or higher) is paid by your motor insurer, not ACC.
Personal-effects in the vehicle
Personal possessions damaged or stolen from the vehicle — handbags, laptops, tools, child seats — are usually covered by your contents insurance (not motor insurance) if you have a home & contents policy with "personal effects away from home" cover. Some Comprehensive motor policies include a small sub-limit for personal effects in the vehicle; check the wording.
Common misunderstandings
"I have ACC, so I don't need motor insurance"
ACC covers your injury treatment. It does not cover the cost of repairing or replacing your car, paying for damage you cause to other people's cars, or paying for damage to property (someone's letterbox, a shop window, a fence). For those, you need motor insurance. ACC has nothing to do with vehicle damage.
"I have Comprehensive car insurance, so ACC isn't relevant"
ACC is automatic and universal — it covers your injury regardless of what motor insurance you hold. ACC always handles personal injury; your motor insurer always handles vehicle/property damage.
"Is car insurance compulsory because of ACC?"
No. ACC funding is mandatory (via rego + petrol levy), but motor insurance itself is not compulsory in New Zealand. Most drivers carry at least Third Party because they remain personally liable for damage they cause to other people's property — but the law does not require any motor insurance to be held.
Where to read more
- ACC Motor Vehicle Account — how the petrol & rego levies fund injury cover
- Accident Compensation Act 2001 — the founding statute
- NZTA — registration, WoF, and licensing
- Cross-insurer excess comparison — once you know motor insurance is what you need, see how the 12 NZ insurers structure it
- Claim process guide — what to do at the scene