What you need to do to register a car in Western Australia

Car registration in Western Australia is managed by the Department of Transport. You must register your vehicle before you drive it on public roads, and you'll renew that registration annually. The process differs depending on whether you're registering a new car, transferring ownership of an existing one, or bringing a vehicle into the state from elsewhere.

Registration covers your vehicle's roadworthiness check, third-party insurance, and the right to use public roads for one year. You can complete most of the process online through the Department of Transport website, though some steps require a visit to a service centre or an authorised agent.

Key Takeaways

  • New vehicles need a roadworthiness inspection before registration; used vehicles need one only if they're over 10 years old or have high mileage.
  • You must hold third-party insurance (compulsory third-party or CTP) before you can register, and the insurer's details go on your registration.
  • Registration costs vary by vehicle type and weight, and you pay for a full year upfront when you first register.
  • You can renew registration online, by post, or at a service centre, and renewal notices arrive about six weeks before expiry.
  • If you're transferring ownership, both the seller and buyer must complete their parts of the process; the vehicle cannot be driven between them without current registration.

Getting a roadworthiness inspection

Before you register a new vehicle in Western Australia, it must pass a roadworthiness inspection. This check confirms the car is safe to drive and meets environmental standards. For new cars straight from a dealership, the dealer often arranges this as part of the sale. For used vehicles, you need an inspection only if the car is over 10 years old or has travelled more than 160,000 kilometres.

You can have the inspection done at any authorised inspection station across Western Australia. The inspection takes about 30 minutes and costs around $50 to $80, depending on the station. The inspector checks brakes, lights, tyres, seatbelts, emissions, and structural condition. Once the inspection passes, you receive a certificate valid for 12 months, which you'll need when you register.

If the vehicle fails inspection, the station will tell you what needs fixing. You can have the work done anywhere and return for a retest, usually at a reduced cost. Keep the inspection certificate safe — you'll need it to complete registration.

Obtaining compulsory third-party insurance

Before registration, you must hold compulsory third-party (CTP) insurance, also called third-party personal injury insurance. This covers injury or death you cause to other people in an accident; it does not cover damage to your own vehicle. You can purchase CTP from any licensed insurer in Western Australia.

When you buy CTP, the insurer gives you a certificate showing your policy number and the dates it covers. You need this certificate to complete registration. The cost varies by vehicle type, age, and engine size, but typically ranges from $300 to $600 per year. Some insurers offer discounts for safe driving records or paying upfront.

CTP must be current on the day you register. If your policy expires before your registration does, you'll need to renew the insurance separately and update your registration details with the Department of Transport.

Completing registration online or at a service centre

Once you have your roadworthiness certificate (if required) and CTP insurance, you can register through the Department of Transport website or visit a service centre in person. Online registration is faster and available 24 hours a day. You'll need your inspection certificate number, CTP policy number, vehicle identification number (VIN), and odometer reading.

At the online portal, you enter your vehicle details, select your registration period (one year is standard), and pay the registration fee. The fee depends on your vehicle's tare weight and type — cars, motorcycles, caravans, and trucks have different rates. Payment is by credit card or debit card. Once approved, you receive a registration certificate and number plates (if new) by post within 5 to 10 working days.

If you prefer to register in person, visit any Department of Transport service centre or an authorised agent such as a post office or motor registry. Bring your inspection certificate, CTP certificate, proof of identity, and proof of address. The staff member will check your documents, process the registration, and you'll leave with a temporary registration certificate. Permanent plates arrive by post later.

Transferring registration when you buy or sell a car

When you buy a registered car in Western Australia, the seller must complete a transfer of ownership form and you must register the transfer within 14 days. The seller keeps their registration until the transfer is processed; you cannot legally drive the car until the transfer is complete and in your name.

As the buyer, you'll need to obtain a new roadworthiness inspection if the car meets the age or mileage thresholds, and arrange your own CTP insurance. You then register the transfer online or at a service centre using the seller's registration number, the transfer form, and your new CTP certificate. The registration fee for a transfer is lower than a new registration and covers the remainder of the registration year.

The seller must lodge their part of the transfer form with the Department of Transport within 14 days of the sale. If they don't, you won't be able to complete your registration. If you're buying privately, confirm the seller has lodged their part before you pay. If you're buying from a dealer, they handle the seller's paperwork as part of the sale.

Renewing your registration each year

Your registration expires on a set date each year, shown on your registration certificate. About six weeks before expiry, the Department of Transport sends you a renewal notice by post with the amount due. You can renew online, by post, or at a service centre.

To renew online, log into the Department of Transport portal with your registration number and vehicle identification number. Check that your vehicle details and CTP insurance are current, then pay the renewal fee. If your CTP insurance has expired, you must renew that first before you can renew registration. Online renewal takes a few minutes and is processed when ready.

If you renew by post, complete the renewal form from your notice and send it with payment to the address shown. Renewal by post takes 5 to 10 working days to process. Do not drive after your registration expires — you can be fined and your vehicle may be impounded. If your renewal notice doesn't arrive, contact the Department of Transport to request a new one.

Registering a vehicle brought into Western Australia from another state

If you move to Western Australia with a car registered in another state, you must re-register it with the Department of Transport within three months. You cannot legally drive it on Western Australian roads under an interstate registration after that period.

To re-register, you'll need a roadworthiness inspection (unless the car is under 10 years old and has low mileage), a new CTP insurance policy from a Western Australian insurer, and your current interstate registration papers. The inspection and insurance process are the same as for any new registration. You then complete registration online or at a service centre, providing your interstate registration details and the new inspection and insurance certificates.

Your interstate registration remains valid until you complete the Western Australian registration. Once you register in Western Australia, your interstate registration ends and you must return the interstate plates to the relevant authority in that state if required by their rules.

Frequently Asked Questions

How much does car registration cost in Western Australia?

Registration cost depends on your vehicle's tare weight and type. A standard car typically costs between $200 and $400 per year. Motorcycles, caravans, and trucks have different rates. The Department of Transport website has a fee calculator where you enter your vehicle details to see the exact cost.

What happens if I drive without current registration?

Driving an unregistered vehicle is illegal and can result in fines of several hundred dollars. Your vehicle may also be impounded. If your registration has expired, renew it when ready — you can do this online in minutes, and the renewal is backdated to cover the gap if you renew within a short period of expiry.

Can I register a car if I don't have a fixed address in Western Australia?

You need a Western Australian address to register. If you're moving and don't yet have a permanent address, you can use a temporary address such as a friend's or family member's address, or a caravan park. You'll need to update your address with the Department of Transport once you have a permanent one.

Do I need to re-register if I change my name or address?

No. You update your details with the Department of Transport by completing a change of details form online or at a service centre. This is free and takes a few minutes. Your registration certificate remains valid; only your personal details on file change.

What if my registration certificate or number plates are lost or damaged?

Contact the Department of Transport to request a replacement certificate or plates. There is a small fee for replacements. You can request these online or at a service centre. Temporary documentation is issued when ready if you visit in person, and permanent replacements arrive by post within 5 to 10 working days.