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Car insurance in SA: CTP, regos and renewals

16 February, 2026
3 min

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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How CTP works in SA

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.

Who is covered by CTP insurance in SA?

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.

What’s covered by CTP insurance?

CTP insurance may help cover the cost of:

  • medical care following a road accident
  • ongoing treatment for injuries sustained in the road accident
  • loss of income because of the road accident.

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:

Purchasing CTP in SA

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.

Car registration in SA

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.

Renewing your rego in SA

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:

  • Renew: your new rego period will start from the last expiry date and you'll pay the same amount on your renewal notice.
  • Re-register: a new rego period will begin from the day you pay your registration, and an additional $21 fee1 will apply if the vehicle has been unregistered for more than 90 days.

For information on renewals, head over to sa.gov.au.

Summing it all up

We’ve covered quite a bit, here are the key takeaways:

  • CTP insurance: SA has a third-party CTP insurance scheme. CTP is paid for at the same time as vehicle registration and is intended to help protect drivers from the financial impact of being injured while on the road or injuring another road user.
  • Vehicle registration: All vehicles (including trailers) must be registered before use. You can register your vehicle by visiting a Service SA centre.
  • Registration renewals: Your rego can be renewed for 3 or 12 months. If your rego expires, you can get a backdated renewal or re-register with a new start date.

Helping you find the right car cover

From basic to comprehensive, find the level of insurance that’s right for you.

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.

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