What a car registration transfer leaves you liable for after a private sale

Handing over the keys doesn’t end your relationship with the car. In NSW the buyer has 14 days to complete the car registration transfer, according to Service NSW, and until they do, the record still has your name on it. One form fixes that.

What do you have to do when you sell your car privately?

Your one legally meaningful job as the seller is lodging a notice of disposal, the form that tells the road authority you no longer own the vehicle. Service NSW requires anyone selling an NSW-registered car privately to lodge one with Transport for NSW. It sits separately from the transfer itself, which only the buyer can complete.

Lodge it the day the car leaves your driveway. Service NSW tells sellers to submit the notice straight after the sale, which starts the buyer’s clock running and shields you in the meantime.

The form asks for five things, so gather them before the buyer drives off:

• Your NSW driver licence or photo card number.
• The car’s NSW registration details.
• The buyer’s NSW driver licence number.
• The date you sold it.
• The sale price, or the market value if that figure is larger.

That third item is the one that catches sellers out. Ask for the buyer’s licence while they’re standing in front of you, not by text message a week later.

If you hold a MyServiceNSW Account you can submit the notice online. Some sales still need the paper version, including cars on conditional registration and buyers who live in another state. Online lodgement is best for sellers whose buyer holds a NSW licence and whose car sits on standard registration.

How long does the buyer have to transfer the registration?

In NSW the buyer has 14 days from taking the car to put the registration into their own name, per Service NSW, and missing that window is expensive for them. Transport for NSW charges $42 for a transfer lodged inside 14 days and $193 once it’s late. The penalty is more than four times the standard fee, which is worth mentioning to a buyer who seems in no hurry.

The buyer also pays stamp duty. Duty applies any time registration passes to a new person or company, and Transport for NSW collects it for Revenue NSW. It’s worked out on the car’s market value, or on what the buyer paid, whichever of the two is larger. Caravans and camper trailers are exempt, as are eligible DVA pensioners, and so is a new heavy trailer brought in from another jurisdiction with a gross vehicle mass above 4.5 tonnes.

Two smaller costs sit alongside those. Service NSW lists number plate fees, where new plates are involved, and motor vehicle tax, which varies with how the car is used and how long it’s registered for. Registration fees themselves went up 2.65 per cent on 1 July 2026, with each amount rounded to the nearest whole dollar, according to Transport for NSW.

Two things make the process simpler than sellers expect. A car already carrying current NSW registration needs no safety inspection for the transfer, and the compulsory third party green slip, the insurance covering injury claims, carries across to the buyer automatically.

What happens if the buyer never lodges the transfer?

If the buyer never transfers the registration, the car stays in your name, and anything attached to the registered owner stays with you. That means parking fines, camera offences and toll notices for a car you sold months ago.

The notice of disposal is what breaks the link. Service NSW says a notice lodged without delay keeps you off the hook for parking tickets, driving offences and similar penalties the new owner picks up. Lodging it is not a courtesy to the buyer. It’s the paperwork that protects you.

There’s a second reason to do it the same day. Service NSW only opens the online transfer to buyers once a notice of disposal is already on file, so a buyer without one has to queue at a Service NSW Centre in person. Plenty of people will put that off, and every week they delay is a week the car is still yours on paper.

Toll accounts run on a separate system and won’t update themselves. Service NSW also suggests deleting the sold car’s number plate from your toll account as an extra layer of protection, which takes a couple of minutes in the provider’s app.

Do the rules change if you’re selling outside NSW?

Yes, every state runs its own system, and Queensland puts noticeably more on the seller before the sale can complete at all.

The Queensland Department of Transport and Main Roads requires you to hand the buyer a current safety inspection certificate. Without it, they simply can’t put the rego in their name. Queensland issues on-the-spot fines to sellers who don’t supply one, so this isn’t a step you can skip and sort out later.

If the car runs on gas, Queensland adds a second document: a certificate from an authorised gas installer, dated no more than 3 months before the transfer goes through, per Queensland Government guidance.

The liability principle is the same across the border. Queensland states the same rule in plain terms, that unpaid tolls and fines follow whoever’s name is on the registration, which is the whole reason the disposal paperwork matters wherever you live.

What should you do the day you hand over the keys?

Lodge the notice of disposal first, then unpick the car from every account still attached to it. All of it can be done the same afternoon.

Working through the list below covers the accounts that keep charging you, or keep pointing at you, after the car is gone. It follows the Service NSW and Queensland Government guidance linked above:

• Submit the notice of disposal with the buyer’s licence number and the date of sale.
• Delete the number plate from your toll account and pull any tag out of the car.
• Update your account details with your toll provider, which Queensland names as Linkt.
• Take the car off any direct debit, so no rego payment leaves your account later.
• Tell your insurer the car is sold and cancel or move the policy.
• Keep a written record of the sale date, the price and the buyer’s details.

You can’t complete the transfer for the buyer, and chasing them rarely works. What you can control is the notice of disposal, and lodging it on the day of sale is the difference between a clean exit and a fine notice arriving for a car you no longer own.