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Comprehensive vs CTP (compulsory third party)

CTP (compulsory third party) is injury cover — not comprehensive. How comprehensive car insurance differs in Australia, and why they lapse separately.

Australians often say they "have car insurance" when they only have CTP. CTP is essential and compulsory for registration, but it is only one layer. Comprehensive and third-party property policies cover different risks — and they frequently renew on different dates from different companies.

CTP (compulsory third party)

CTP covers your liability for personal injury to other people in a motor accident. In NSW it is commonly called a green slip. Other states and territories have their own CTP or equivalent schemes, sometimes bundled into registration.

CTP generally does not cover:

  • Damage to your own vehicle
  • Damage to someone else's car, fence or shopfront
  • Theft of your vehicle
  • Windscreen, hail, fire or flood damage to your car

Third-party property damage

A third-party property policy covers your liability if you damage someone else's property (most often their car). It still usually will not pay to repair your own vehicle after an at-fault crash. Some products add limited "uninsured motorist" extensions — always check the PDS.

Comprehensive car insurance

Comprehensive cover is the broad optional product most private owners buy. It typically includes:

  • Third-party property damage
  • Accidental damage to your own car
  • Theft
  • Fire, storm and other insured events listed in the PDS
  • Optional extras such as hire car or windscreen cover

Comprehensive still has exclusions (drink-driving, unlicensed drivers, undeclared modifications, wear and tear). Reading the schedule and PDS matters.

How the layers fit together

  • CTP — injury to people (compulsory for registration)
  • Third-party property — damage you cause to other people's property
  • Comprehensive — usually third-party property plus cover for your own vehicle
CTP alone is not "full car insurance". If your car is written off tomorrow in an at-fault accident, CTP will not replace it.

Why people accidentally let one lapse

CTP may renew with registration. Comprehensive often renews on an annual insurer cycle. Add roadside assistance from a motoring club and a household can have three car-related renewals for one vehicle — plus another set for a second car. Missed emails are common; so are households that assume registration renewal somehow renewed comprehensive too. What happens when car insurance lapses depends on which layer expired.

What to track for every vehicle

  • CTP / registration-related cover and its expiry
  • Comprehensive or third-party property policy number and renewal
  • Agreed value vs market value on comprehensive
  • Excess and no-claim bonus
  • Named drivers and any finance provider noted as interested
  • Where the current schedule PDF lives
Insuro tracks car policies (and their separate renewal dates) in one vault. Forward NRMA, AAMI, Allianz, Budget Direct, Youi, RACV and other insurer emails to your private@insuro.com.auaddress. Free during beta. Common questions are on the FAQ.

Frequently asked questions

What does CTP insurance cover in Australia?⌄

CTP (compulsory third party) covers personal injury liability if you injure someone in a motor accident. It does not cover damage to your car, other people's property, or theft.

Is CTP the same as comprehensive car insurance?⌄

No. CTP is injury liability cover required to register a vehicle. Comprehensive is optional cover for your own vehicle and usually includes third-party property damage plus accidental damage, theft and more.

Do I need both CTP and comprehensive?⌄

You need CTP (or the local equivalent) to register the vehicle. Comprehensive is optional but commonly held because CTP alone leaves vehicle and property damage uninsured.

Why do CTP and comprehensive renew on different dates?⌄

They are often sold by different providers and tied to different cycles (registration versus annual comprehensive renewals). Track both dates or one can lapse while the other stays active.

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