Buying a car interstate? Two states' rules, and you need to know both

The listing looks perfect: right colour, right kilometres, and a few thousand dollars under anything near home. The only catch is the postcode. It's in another state, and the dealer is happy to organise a one-way flight and a handshake at the yard.

Plenty of buyers do exactly this, and it can work well. But an interstate purchase isn't governed by one set of rules. The dealer sells under its own state's paperwork, you register under yours, and duty lands wherever the car is registered. Knowing which is which is the difference between a smart buy and a surprise at the rego counter.

The national layer that never changes

Start with the good news. The Australian Consumer Law is national. The ACCC says the consumer guarantees apply to new and second-hand cars bought from a licensed dealer: the car must be of acceptable quality, fit for any purpose you disclosed, match its description and come with clear title. A dealer in Perth owes you exactly the same guarantees as one in Parramatta, and no contract clause can take them away.

The PPSR is national too. A $2 online search covers every state, shows any finance owing and, where the data is available, whether the car has been recorded as written off or stolen. The PPSR notes stolen status isn't shown for Tasmania and that this data isn't always complete or up to date, so treat a clean result as a strong start rather than the end of your checks.

The sale: expect the dealer's own state paperwork

Cooling-off and statutory used-car warranties are not national. They come from state dealer laws, and they vary a lot. A licensed dealer will normally hand you the forms its own state requires, which is your first clue to which scheme it believes applies. Don't assume the cooling-off period you'd get at home crosses the border with you. Ask the dealer, in writing, which state's cooling-off and warranty cover your contract, and check the answer with that state's regulator.

Summary of each regulator's published rules, from CDR's fact base verified 27 September 2026. Conditions and exclusions apply; check the linked official source.

The dealer sells under its state's rules, you register under yours, and duty follows the number plates.

The practical catch with a statutory warranty is distance. If a fault appears three weeks after you get home, the repair is the dealer's responsibility, but the dealer is two states away. Before you pay, ask how warranty claims are handled for interstate buyers, whether the dealer will authorise a local repairer, and get that arrangement in writing.

The rego: your home state's inspection rules

Once the car is yours, registration is governed by the state where it will live, and each one wants proof the car is roadworthy and is what it claims to be.

• NSW: Service NSW requires the original AUVIS report (the blue slip) issued no more than 42 days before you register, and CTP insurance before registration can be completed.
• Queensland: if you move a vehicle to Queensland you have 14 days to register it, and you need a current Queensland safety certificate and to hand in the interstate plates.
• WA: a car licensed in another state must pass an inspection at an Authorised Inspection Station before it can be licensed, and it can only be licensed in WA if it is primarily kept there.
• ACT: the ACT Revenue Office says to transfer the registration and pay duty within 14 days of buying.

For other states, check the transport authority's page on registering an interstate vehicle before you buy, not after. An inspection fail at home is your problem to fix, not the selling dealer's.

Duty: pay it once, in the right place

Motor vehicle duty is charged when a car is registered or transferred, and the rates differ sharply. NSW charges $3 per $100 up to $44,999; Victoria's standard passenger rate starts at $8.40 per $200; Queensland ranges from $2 to $6 per $100 depending on engine and value. So a price gap between states can shrink once your own state's duty is added.

The exemptions for interstate cars are narrow and mostly written for people moving house, not buying. Victoria's State Revenue Office exempts a car registered in the same name as its previous interstate registration, but only where the Commissioner is satisfied the interstate registration wasn't made to avoid Victorian duty. Queensland says you won't pay duty again if you paid it when you registered the vehicle interstate. WA charges duty on the vehicle's value unless you were the previous licence holder. In short, buying a car interstate and registering it at home generally means your home state's duty.

Written-off history travels with the car

One of the few things that doesn't reset at the border is a write-off record. Queensland says its written-off statuses are permanent and apply even if the vehicle is moved outside Queensland. NSW says a light vehicle written off in another state must be repaired, inspected and re-registered in that state before you can apply for NSW registration. Pair the PPSR search with a direct question to the dealer about any write-off, hail or flood history.

The bottom line

An interstate car can be a genuine bargain, but it is really three transactions: a sale under the dealer's state rules, a registration under yours, and a duty bill set by where the plates go. Do the maths on all three before you book the flight, get the warranty arrangements in writing, and check the linked official source for both states before you sign.