InsuoraHow car insurance works in Australia
Australia has two distinct layers of car insurance. The first — CTP (Compulsory Third Party), called a Green Slip in NSW — is a legally required government scheme that covers personal injury claims when you are at fault in a crash. It is included in registration fees in most states (e.g. Victoria's TAC levy) or purchased separately in NSW and QLD. It does not cover vehicle or property damage.
The second layer is voluntary motor insurance — comprehensive, TPFT, or third-party property only — purchased privately from insurers such as NRMA, AAMI, Allianz, QBE, Budget Direct, RACQ, or RACT. This calculator estimates the cost of this voluntary cover.
Coverage types explained
- Comprehensive
- Covers your vehicle for collision (including at-fault accidents), theft, fire, storm, hail, and flood — as well as damage you cause to other people's vehicles and property. The most complete cover. Essential for newer or financed vehicles.
- Third Party, Fire & Theft (TPFT)
- Covers damage you cause to others' vehicles and property, plus theft of and fire damage to your own car. Does not cover collision damage to your own vehicle. A middle-ground option for older cars that are worth insuring against theft but not worth full comprehensive cover.
- Third Party Property
- The minimum voluntary cover — protects you against claims from other drivers or property owners if you are at fault. No cover for your own vehicle. Appropriate only for older, low-value cars.
Key pricing factors in Australia
- State / territory — NSW has the highest comprehensive premiums due to traffic density, higher repair costs and Sydney's hail risk. Tasmania and the ACT are among the cheapest.
- No-claims bonus (NCB) — Most insurers offer up to 60–65% discount after 5 consecutive claim-free years, building year by year from around 12% at year one. A single at-fault claim can reduce your bonus significantly; some policies offer 'protected no-claims bonus' as an add-on to preserve your discount after one claim.
- Driver age — Drivers under 25 attract the steepest loading — often 50–70% above the adult rate — reflecting their higher crash frequency. Some policies charge an additional 'young driver excess' on top.
- Vehicle type and age — Luxury and performance vehicles cost more to repair and replace. Older vehicles may not qualify for agreed-value policies.
- Agreed vs. market value — Agreed value locks in a set payout amount at the time you take out the policy, giving certainty; market value pays what your car is worth at the time of the claim and is typically cheaper. Agreed value policies cost around 8–12% more but are preferred for newer and collectible vehicles.
- Voluntary excess (deductible) — Choosing a higher voluntary excess reduces your annual premium — opting for a $1,000+ excess instead of the standard $500 can save 8–12%. Most policies also impose a compulsory age excess (often $600–$1,200) for drivers under 25, on top of any voluntary excess.
Frequently asked questions
- Is this calculator free?
- Yes — completely free, no account needed. It runs in your browser and nothing you enter is saved.
- What is CTP and is it included here?
- CTP (Compulsory Third Party) insurance covers personal injury claims only. In most states it is built into your vehicle registration fee; in NSW and QLD you purchase a Green Slip separately. CTP is not included in this calculator — it is calculated when you register your vehicle with your state's transport authority.
- Why did my premium increase so much at renewal?
- Australian car insurance premiums rose 15–25% in 2023–24 due to a combination of factors: global vehicle parts shortages driving up repair costs, rising labour rates for smash repairers, supply chain inflation, and a series of major weather events (2022 Queensland / NSW floods, 2023 hailstorms). Most insurers applied double-digit increases at renewal across all policy classes.
- Does comprehensive insurance cover flood damage?
- Yes — most comprehensive policies include flood damage as a standard peril in Australia. However, check your Product Disclosure Statement (PDS) carefully: some policies exclude 'storm surge' or have different definitions for 'flood' vs. 'storm water runoff'. If you live in a known flood zone, confirm flood cover is explicitly included before purchasing.