Car Insurance Glossary: Policy Jargon in Plain English
Insurance documents are written in a dialect all their own. This page translates it: first the three documents you'll actually receive, then your obligations under them, then an A–Z of the terms that matter.
How do I read my car insurance policy documents?
You'll get three documents. The policy schedule is your personal summary — car, cover type, premium, excess, listed drivers. The PDS (Product Disclosure Statement) is the legal contract — every inclusion, exclusion and definition; claims are decided against it. The FSG (Financial Services Guide) explains who's selling to you and how they're paid.
The exclusions section of the PDS is where most claim disputes are born — read it before buying, not after an incident. If anything is unclear, ask the insurer to explain it in plain language before you commit. Moneysmart's financial glossary is a good general companion; the definitions below are specific to car insurance.
What are my obligations as a policyholder?
Five core duties: disclose everything material (history, modifications, drivers, garaging, business use) at purchase and every renewal; report incidents promptly; take reasonable care to prevent loss (lock the car, obey flood warnings); keep the car roadworthy; and pay premiums on time. Breach these and claims can be reduced, denied, or the policy voided.
The duty of disclosure is the big one — a material fact is anything that would have influenced the insurer's decision to cover you or the terms they offered. When in doubt, disclose. The ICA's consumer guidance covers these duties in detail, and state road authorities like VicRoads define what roadworthy means in practice.
Car insurance terms, A–Z
- Agreed value
- A fixed payout amount for a total loss, agreed when the policy starts. Certainty at a slightly higher premium. Contrast market value.
- Approved repairer
- A workshop authorised by your insurer to carry out repairs under the policy.
- Assessor
- The person appointed by the insurer to inspect damage, price repairs and decide whether the car is a write-off.
- At-fault claim
- A claim where you're deemed legally responsible for the incident — the kind that costs your no-claims bonus and triggers your excess.
- AFCA
- The Australian Financial Complaints Authority — the free, independent body that resolves disputes with insurers when internal complaints fail. See resolving disputes.
- Comprehensive
- The highest cover level: your own car against collision, fire, theft, storm, flood, hail and vandalism, plus liability for others' property. See what comprehensive covers.
- Cooling-off period
- A window after purchase (typically 14–21 days) to cancel for a full refund, provided you haven't claimed.
- CTP
- Compulsory Third Party insurance — mandatory, injury-only cover for other people when you're at fault. The NSW version is the green slip. See CTP by state.
- Depreciation
- The fall in your car's value over time — the reason market-value payouts shrink each year.
- Duty of disclosure
- Your legal duty to truthfully tell the insurer everything material, at purchase and every renewal.
- Excess
- The amount you contribute to each covered claim. Variants stack: basic, age (young drivers), unlisted driver, and claim-type excesses (e.g. glass).
- Exclusion
- An event or circumstance the policy explicitly won't pay for — the section of the PDS to read twice.
- FSG
- Financial Services Guide — discloses who's providing the financial service and how they're remunerated.
- Green slip
- NSW's name for CTP insurance, bought separately before registration.
- Lapse
- When cover ends because premiums weren't paid — you're driving uninsured (beyond CTP) from that moment.
- Market value
- What your car would have sold for immediately before the loss, as assessed by the insurer. Contrast agreed value.
- Material fact
- Anything that would influence the insurer's decision to cover you or on what terms — the subject of the duty of disclosure.
- No-claims bonus (NCB)
- The discount earned for consecutive at-fault-claim-free years, typically maxing out ("Rating 1") around five years. Protection add-ons preserve it through one or two claims.
- PDS
- Product Disclosure Statement — the legal contract defining your cover. The document claims are assessed against.
- Policy schedule
- Your personalised summary: vehicle, cover type, period, premium, excess, listed drivers.
- Salvage
- The remains of a written-off car — usually becomes the insurer's property after a total-loss payout.
- Sub-limit
- A smaller cap inside the policy for specific items — e.g. $500–$1,000 for personal effects stolen from the car.
- Sum insured
- The maximum payable for a total loss — your agreed or market value.
- Telematics / UBI
- Usage-based insurance priced from monitored driving behaviour (speed, braking, kilometres) via an app or device.
- Third party
- Anyone other than you and your insurer. Third party covers protect their people and property, not yours.
- Third party fire & theft
- Third party property damage plus your own car against fire and theft. See details.
- Third party property damage
- Covers damage your car causes to others' property; often includes a capped uninsured-motorist benefit. See details.
- Total loss / write-off
- When repair costs exceed the car's value (or it's unsafe to repair) — triggers a sum-insured payout minus excess.
- Underwriter
- The entity that accepts the insurance risk, issues the policy and pays claims.
- Uninsured motorist cover
- The capped benefit in many third party policies covering your car when an uninsured at-fault driver hits it.
More terms worth knowing
| Term | What it means in practice |
|---|---|
| Betterment | Where a repair leaves the car better than before, an insurer may ask you to contribute — most often for new tyres, batteries or a repaint of an aged panel. |
| Salvage | The wreck after a total loss. It becomes the insurer's property once you're paid, unless you negotiate to keep it for a reduced payout. |
| Subrogation | Your insurer's right to step into your shoes and recover its outlay from the at-fault party. It's why you're told not to admit liability. |
| Indemnity | The principle that insurance restores your position, rather than profiting you. It's the reason market value, not purchase price, is the default measure. |
| Sum insured | The maximum the insurer will pay for your vehicle — the agreed value figure, or the assessed market value. |
| Sub-limit | A cap inside a cap: personal effects, trailer cover or emergency accommodation limits that sit below the overall sum insured. |
| Endorsement | A written change to the standard policy terms — adding business use, a modification, or a named driver. |
| Excess stacking | Multiple excesses applying to the same claim (basic + age + unlisted driver). Ask how they combine before you buy. |
| Rating 1 / No Claim Bonus | The top discount tier, usually reached after around five continuous claim-free years. |
| NCB protection | A paid option letting you claim once or twice without dropping your rating. Worth it mainly once the bonus is large. |
| Shortfall / gap insurance | Covers the difference between an insurance payout and what you still owe a financier after a total loss. |
| Statutory write-off | Damage severe enough that the vehicle can never be re-registered. Distinct from a repairable write-off. |
| Repairable write-off | Economic to scrap but physically repairable; re-registration is possible in some states after inspection. |
| PPSR | The Personal Property Securities Register — check it before buying used to reveal finance owing and write-off history. |
| Choice of repairer | Whether you pick the repair shop or use the insurer's network. Standard on some policies, optional on others. |
| Cooling-off period | Normally 14 days after buying a policy in which you can cancel for a full refund, provided you haven't claimed. |
| Duty to take reasonable care | The modern consumer-insurance standard replacing the older duty of disclosure: don't misrepresent facts when answering an insurer's questions. |
| Unlisted driver excess | An additional excess when the driver at the time wasn't named on the policy. Frequently the largest single excess on a claim. |
| Nominal Defendant | The fund of last resort for CTP injury claims where the at-fault vehicle was unregistered or unidentified. |
| Total loss | The insurer's decision that repair is uneconomic or unsafe, triggering settlement at agreed or market value. |
| Telematics | Driving data — distance, braking, speed, time of day — collected by app or device and used to price a policy. |
| Thermal runaway | A self-sustaining chain reaction in a lithium-ion cell. The reason EV and e-bike battery fires behave differently from petrol fires. |
Using these terms against your own PDS
Definitions in a PDS override ordinary usage, and that's where most disputes originate. Three worth checking in your own wording before you need them:
- "Flood" versus "storm" versus "water damage." On motor policies these are usually all covered under comprehensive, but the definitions determine which section applies and which excess.
- "Business use." Some wordings capture carrying tools, others only capture carrying goods or passengers for reward. Read yours if you work out of your vehicle — and see the myth about work driving.
- "Unattended." The definition decides whether leaving the engine running at a service station voids theft cover. It usually does.
If a definition genuinely seems ambiguous, that ambiguity is generally construed against the insurer who wrote it — but the cheaper path is a phone call before the claim, with the answer confirmed in writing.
Frequently asked questions
What is an excess in car insurance?
The excess is the fixed amount you pay out of pocket towards each claim your policy covers. A higher excess buys a lower premium and vice versa. Extra excesses can stack on top — for young drivers, unlisted drivers, or specific claim types.
What is a PDS in insurance?
The Product Disclosure Statement is the legal document that defines your policy: every inclusion, exclusion, limit, definition and condition. Claims are assessed against the PDS, not against ads or summaries — read it before you buy.
What is the duty of disclosure?
Your legal obligation to truthfully tell the insurer everything they ask that's relevant to insuring you — driving history, modifications, garaging address, regular drivers — both when taking out the policy and at every renewal. Failing to disclose a material fact can void the policy or sink a claim.
What does no-claims bonus mean?
A discount that grows for every consecutive year you go without an at-fault claim, typically reaching its maximum ('Rating 1') after about five years. Many insurers sell NCB protection so one or two at-fault claims don't reset it.