Register your car with the Department of Transport Western Australia

To register a car in Western Australia, you submit an process to the Department of Transport Western Australia (DTWA) along with proof of ownership, identity, and roadworthiness. The process differs slightly depending on whether you are registering a new car, transferring ownership of an existing one, or renewing an expired registration. Most applications are handled through Service WA centres, online through the DTWA portal, or by mail.

Registration is compulsory before you can legally drive on public roads in Western Australia. Your registration certificate shows the vehicle identification number (VIN), engine number, registration plate, and the registered owner's details. The certificate must be carried in the vehicle at all times.

Key Takeaways

  • New vehicle registrations require a completed process form, proof of ownership (such as a bill of sale or manufacturer's statement), proof of identity, and a roadworthiness inspection certificate.
  • Transferring ownership of an existing registered vehicle requires both the seller and buyer to complete the relevant section of the registration form, along with proof of identity for both parties.
  • You can register online through the DTWA portal, in person at a Service WA centre, or by post; online is usually the fastest option if all documents are ready.
  • Registration fees vary by vehicle type and engine size, and you will need to pay the fee at the time of registration or renewal.
  • A roadworthiness inspection (pink slip) is required for most vehicles and must be obtained from an authorised testing station before you submit your registration process.

Documents you need to register a new car

For a new vehicle, gather the manufacturer's statement of origin (MSO) or bill of sale, your proof of identity (driver's licence, passport, or birth certificate), and proof of your current address (utility bill, lease agreement, or bank statement dated within the last three months). If the vehicle was imported, you will also need the import approval documentation from DTWA.

You must also obtain a roadworthiness inspection certificate from an authorised testing station. This certificate confirms the vehicle meets safety and environmental standards. The inspection costs between $50 and $150 depending on the testing station and vehicle type. Once you have the inspection certificate, you can proceed with the registration process.

How to transfer ownership when buying a used car

When you buy a used car in Western Australia, both you and the seller must complete the ownership transfer section of the registration form. The seller provides their details and signature, and you provide yours along with proof of identity. You will also need a roadworthiness inspection certificate unless the vehicle was registered within the last 12 months and the current registration is still valid.

The seller should give you the registration certificate and any service records. If the seller cannot locate the original certificate, DTWA can issue a replacement, though this may delay the transfer. Submit the completed form, inspection certificate (if required), proof of identity, and proof of address to Service WA or by post. The transfer is processed once DTWA receives all documents and the fee is paid.

Registration fees and payment options

Registration fees in Western Australia depend on the vehicle's tare mass (unladen weight) and engine size. A standard passenger car typically costs between $200 and $350 for a 12-month registration, though this varies. Heavy vehicles, motorcycles, and vehicles with larger engines may have different fee structures. DTWA publishes the full fee schedule on its website.

You can pay the registration fee online using a credit or debit card, in person at a Service WA centre using cash or card, or by post using a cheque. Payment is required at the time of process. If you are renewing an existing registration, you will receive a renewal notice in the mail before your current registration expires, and you can pay through the methods listed on that notice.

Where to submit your registration process

Service WA centres are located across Western Australia and handle registration applications in person. You can find your nearest centre on the Service WA website by entering your postcode. Processing times at Service WA are usually same-day or next-day for straightforward applications, though complex cases may take longer.

Online registration through the DTWA portal is available 24 hours and typically processes within two to five business days if all documents are correct and uploaded clearly. You will need to create an account and upload scans or photos of your documents. Registration by post takes longer — allow two to three weeks for processing. Mail your completed form and documents to the address listed on the DTWA website.

Roadworthiness inspection requirements

A roadworthiness inspection (commonly called a pink slip) is required for most vehicles before first registration or when transferring ownership. The inspection checks brakes, lights, tyres, steering, suspension, and emissions. Vehicles less than five years old may be exempt if they come with a manufacturer's warranty and have not been previously registered in Australia.

Authorised testing stations are listed on the DTWA website. You book an appointment, take the vehicle in, and receive the inspection certificate on the same day if it passes. If the vehicle fails, you must fix the identified issues and return for a retest. Keep the inspection certificate safe — you will need it when you submit your registration process.

What happens after you submit your process

Once DTWA receives your process, they check that all documents are present and correct. If anything is missing or unclear, they will contact you by phone or email to request additional information. This can add several days to processing time, so make sure your documents are legible and complete before you submit.

When your process is approved, DTWA issues your registration certificate and registration plates (if new plates are needed). You can collect plates and the certificate from a Service WA centre, or they will be mailed to your address. Your registration is valid from the date DTWA approves it, not from the date you submitted it. You must display the registration plates on the front and rear of the vehicle before driving on public roads.

Frequently Asked Questions

Can I drive my car before the registration certificate arrives?

No. You must have the registration certificate and display the registration plates before driving on public roads. If you are waiting for plates to arrive by mail, ask DTWA whether you can collect them from a Service WA centre instead to speed up the process.

What if my roadworthiness inspection fails?

You must have the failed items repaired by a mechanic and then return to the testing station for a retest. Common failures include worn brake pads, faulty lights, and bald tyres. Once the vehicle passes, you receive a new inspection certificate and can submit your registration process.

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

No, but you should notify DTWA of your address change within 14 days. You can do this online through the DTWA portal or at a Service WA centre. Your registration certificate remains valid; only your address details are updated on the system.

How long is a registration certificate valid?

Registration in Western Australia is valid for 12 months from the date of issue. You will receive a renewal notice by mail about four weeks before your registration expires. You can renew online, at a Service WA centre, or by post using the renewal notice.

What if I buy a car from interstate?

You must obtain a roadworthiness inspection from an authorised Western Australian testing station and then register the vehicle in Western Australia. You will need the interstate registration certificate, bill of sale, proof of identity, and proof of address. DTWA will issue a new Western Australian registration certificate and plates.