Most of what goes wrong when buying a used car in Australia traces back to two things: not knowing what protection you actually have, and moving money before you've checked anything. Neither is hard to fix, and both are worth sorting before you start inspecting cars.
This page answers the questions buyers ask most — private seller versus dealer, cooling-off rights, what a fair price looks like, deposits, paperwork, interstate purchases and finance. Several of these rules differ by state and territory, so where that matters we say so rather than guess.
The hardest money to recover is money you sent before you saw the car. A seller who won't meet in person, pushes for a deposit to "hold" the vehicle, or asks for payment by gift card, crypto or through a third-party "shipping agent" is describing a scam, not a sale. See avoiding used car scams, and report attempts to Scamwatch.
FAQs
Should I buy from a private seller or a dealer?
It's a trade between price and protection. A dealer sale carries legal protection a private sale doesn't: consumer guarantees under the Australian Consumer Law apply automatically, and most states and territories add a statutory warranty on top, subject to price, age and kilometre thresholds that vary by jurisdiction. A private sale is usually cheaper for the same car, because the seller isn't carrying those obligations, a premises or a margin. Auctions sit in a third category — the ACCC notes most consumer guarantees don't apply to auction sales, which is why buying at auction needs more homework, not less. If an unexpected few thousand dollars of repairs would genuinely hurt, the dealer premium is buying you something real.
Is there a cooling-off period when I buy a used car?
Sometimes, and it depends on both the seller and where you are. Buying from a licensed dealer, Victoria, New South Wales, Queensland, South Australia and the ACT each give you a short window to cancel the contract, with different lengths and conditions attached, while Western Australia, Tasmania and the Northern Territory generally don't. An ordinary private sale doesn't carry a cooling-off period, so once you've paid and taken the car, the deal is done. Where a cooling-off period does exist, taking delivery of the car can end it early, and your deposit may not come back in full. Confirm the current rule with your own state or territory consumer protection agency before you sign anything.
What protection do I actually have when I buy privately?
Less than most people assume, but not nothing. A private seller still has to guarantee they genuinely own the car, that nobody else has a claim on it, and that there's no undisclosed security interest such as outstanding finance. What doesn't carry over is quality: the guarantees that a car is of acceptable quality and fit for purpose apply to supply in trade or commerce, so a private seller generally isn't on the hook when the gearbox fails a fortnight later. There's a practical catch too — buy privately without running a PPSR check and you may not be protected if a financier later comes for the car, which is why that search and an independent inspection matter more in a private sale than in a dealer one.
What should I check before I hand over any money?
Three things, in this order: the car, the paperwork, then the seller. Inspect the car in daylight at the seller's own address, ideally with an independent mechanic — our used car inspection checklist covers what to look at and what should end a viewing. Run a PPSR check on the VIN to confirm there's no money owing and that the car isn't recorded as stolen or written off. Finally, check the seller's name and address against the registration papers, because a mismatch there is a common warning sign in private-sale fraud.
How do I work out whether an asking price is fair?
Compare like with like, then adjust for condition. Search current listings for the same model and variant at a similar year and kilometre reading, and treat what you find as asking prices rather than sale prices — there's usually room between the two. Then adjust for the things that cost real money: service history, tyres, an approaching timing belt interval, and whether registration has months left or weeks. Two cars that look identical in a listing can be thousands apart once you account for a missing logbook and four tyres due. A car priced well below comparable listings is a question to answer, not a bargain to grab.
How do I negotiate on price without wasting anyone's time?
Negotiate on evidence, not on nerve. Turn up having actually inspected the car, bring the comparable listings you found and quotes for anything that needs doing, then make one reasonable offer with the reasoning attached — "it needs tyres and a service, so I can do X" lands far better than a round number pulled from the air. Decide your walk-away figure before you arrive and hold to it, because there is another car. Our guide to buying on the evidence rather than the folklore covers which common rules of thumb hold up under scrutiny and which don't.
Should I pay a deposit, and can I get it back?
Not before you've seen the car — and get the terms in writing either way. In a private sale a deposit is a matter of contract rather than a specific consumer right, so whether it's refundable comes down to what the two of you agreed before the money moved. Write down, even in a text message, what the deposit covers, what happens if a mechanical inspection turns something up, and when the balance is due. Dealer deposits are a different matter, because several states regulate how much a dealer can take and how much they may keep if you pull out, so check the rule where you're buying. If a seller wants a deposit before you've laid eyes on the vehicle, that isn't a deposit — it's the pattern described at the top of this page.
What paperwork do I need to buy a car privately?
At minimum: the seller's photo licence, a registration certificate in that same name, a signed transfer form, and a receipt recording the date, price, VIN, registration number and both parties' names and addresses. Some states also require the seller to provide a roadworthy or safety certificate before transfer, and some require them to lodge a notice of disposal — this differs by state and territory, so confirm the requirements with your own road authority rather than assuming a rule you read about elsewhere applies where you live. Take the service books and both sets of keys as part of the deal, and don't leave the handover without the paperwork in your hand. How to buy a used car walks through the sequence.
Is it worth buying a car interstate?
It can be, if the saving comfortably exceeds the cost of getting it wrong. Budget for a pre-purchase inspection by someone local to the car, because you can't eyeball it yourself and that inspection is carrying the whole decision, plus transport or a one-way flight and the drive home. Stamp duty is charged by the state or territory you register the car in, at that jurisdiction's rates, and is usually calculated on the higher of the price paid or market value. Several states give you roughly a fortnight from purchase to transfer registration before late fees apply, so check both your own road authority and the seller's before committing — requirements for interstate transfers, inspections and plates aren't uniform.
Should I pay cash or use finance?
Cash is cheaper if you have it and the purchase doesn't drain your buffer; finance costs more but leaves money available for the repairs a used car eventually needs. If you borrow, compare the comparison rate rather than the headline rate, and be wary of balloon or residual payments — Moneysmart points out that the smaller monthly figure generally means a higher total cost, since you repay that lump sum with interest. Dealer-arranged finance is convenient but can involve a broker as well as a lender, so ask who is being paid and what fees are built in before you sign. A secured loan usually prices lower than an unsecured one, with the trade-off that the lender can repossess the car if you fall behind.
Where to next
- How to buy a used car — the full step-by-step, from shortlist to handover
- Used car inspection checklist — what to check, and what should end the viewing
- Avoiding used car scams — the patterns that cost buyers money
- Buying a car at auction — what you're really signing up for
- Buying on the evidence, not the folklore — which rules of thumb survive scrutiny
- Browse cars for sale — compare live listings to sanity-check an asking price