We provide a run down on how Compulsory Third Party (CTP) insurance, car registrations and renewals work in South Australia (SA).
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CTP is a mandatory insurance scheme that applies to all vehicle owners in Australia. While the scheme and legislation for how CTP works differs depending on which state or territory you’re in, broadly, it exists to help protect drivers from the financial impact of causing death or injury to another road user.
CTP in South Australia operates as a third-party scheme, which means that claims for injuries may only be accepted if you’re not at fault, or if two drivers are found to be equally at fault (depending on the circumstances). It won’t cover an injured driver who is entirely at fault, which differs from some other Australian states and territories, such as NSW.
CTP insurance may help cover the cost of:
If someone is killed, CTP may also cover compensation to the deceased person’s relatives.
Remember, CTP does not cover damage to vehicles or property. For property damage cover, you may consider these optional cover types:
In SA, you pay for CTP at the same time you register your vehicle. You can choose the insurer, allowing you to shop around for the service and price that suits you, but all insurers ultimately offer the same policy of insurance.
All vehicles in South Australia need to be registered before they can be used on the road, including trailers. This applies regardless of whether you’re driving a car, caravan, or motorbike.
If you’re buying a new car, some dealerships may register the car on your behalf. Otherwise, you can arrange it yourself by visiting a Service SA centre.
For information on what you need and how it works, visit sa.gov.au.
You can renew your car, motorbike, caravan or trailer registration for 3 or 12 months. To renew your rego, you’ll need your vehicle’s plate number and your licence or client number.
If you renew early and pay for your rego before the expiry date (A+ for being on top of your life admin!), your rego will kick in the day after the expiry date.
If your registration expires, you'll have 2 options:
For information on renewals, head over to sa.gov.au.
We’ve covered quite a bit, here are the key takeaways:
1 Fee correct as of January 2026. Department for Infrastructure and Transport. Renew vehicle registration. SA.GOV.AU. https://www.sa.gov.au/topics/driving-and-transport/registration/vehicle-registration/renewals/renew
All content on the NRMA Insurance Blog is intended to be general in nature and does not constitute and is not intended to be professional advice.