A rego check tells you whether a vehicle's registration is current and the car is legally roadworthy
A rego check (short for registration check) is a search that confirms a car's registration status with your state or territory's transport authority. It tells you whether the vehicle is currently registered, when that registration expires, and whether the car has passed its most recent safety inspection. If you're buying a used car, checking the rego is one of the fastest ways to spot whether the seller is trying to hide a problem — an unregistered car or one with a failed inspection is a red flag.
The check itself takes seconds and costs nothing. You enter the car's registration plate (the number plate on the back and front) into an online search tool run by your state's transport department. Within moments you get back the registration status, expiry date, and whether the vehicle passed its last roadworthiness test. Some states also show whether the car has outstanding fines or is listed as stolen.
You do not need to own the car or have the owner's permission to run a rego check. Anyone can look up any registration plate. This is intentional — the system is designed so buyers, renters, and even pedestrians can verify that a vehicle on the road is legal to be there.
Key Takeaways
- A rego check confirms whether a car's registration is current and shows when it expires, which you can do free through your state's transport website.
- The check also reveals whether the car passed its last safety inspection, which is a legal requirement before registration can be renewed.
- You can run a rego check on any vehicle using only its registration plate — no permission from the owner is needed.
- If a car's registration has expired or the safety inspection failed, the vehicle cannot legally be driven on public roads.
- A rego check takes less than a minute and should be part of any used car purchase to confirm the seller is not hiding mechanical problems.
How to run a rego check in your state
Each state and territory runs its own registration system, so the website you use depends on where the car is registered. Go to your state's transport authority website — this is usually called Transport NSW, VicRoads, Transport Queensland, or similar. Look for a link labeled "Check registration" or "Vehicle registration search".
Enter the car's registration plate exactly as it appears on the number plate. Do not include spaces or hyphens unless the search box prompts you to. Hit search. Within seconds you will see the registration status, the expiry date, and the result of the last roadworthiness inspection. If the registration has expired or the inspection failed, the result will say so clearly.
If the search returns no results, either the plate number was entered incorrectly or the vehicle is not registered in that state. Try again with the plate number, checking each character carefully. If it still does not appear, the car may be registered in a different state, or it may not be registered at all — which means it cannot legally be driven.
What the results mean
A rego check result shows three key pieces of information. Registration status tells you whether the car is currently registered (active) or whether registration has lapsed. Expiry date shows when the current registration runs out — after that date, the car cannot be driven until the owner renews it. Roadworthiness inspection result shows whether the car passed its last safety check.
If registration is active and the expiry date is in the future, the car is legal to drive. If the expiry date has passed, the car should not be on the road. If the roadworthiness inspection shows a fail, the car cannot be re-registered until the problems are fixed and it passes a new inspection.
Some states also show whether the vehicle has outstanding fines or is listed as stolen. If either appears on the result, do not proceed with a purchase — contact the police or the seller's local council to understand what is happening.
Why a rego check matters when buying a used car
A rego check is one of the cheapest ways to catch a problem before you hand over money. If a car's registration has expired, the seller may be hiding the fact that it failed its last safety inspection. If the inspection failed, the car has mechanical or safety issues that need fixing — and fixing them costs money that the seller does not want to spend.
Sellers sometimes try to sell unregistered cars at a discount, betting that a buyer will not notice until after the sale. Once you own it, you are responsible for getting it registered and passing inspection yourself. A rego check takes 30 seconds and tells you whether the seller is being honest about the car's condition.
If you are buying privately (not from a dealer), always run a rego check before you arrange to see the car. If you are buying from a dealer, run one anyway — it is a second opinion on what the dealer is telling you. If the rego check result does not match what the seller said, ask them to explain the difference before you commit to anything.
What to do if the rego check shows a problem
If registration has expired, ask the seller when they plan to renew it and whether they have already booked a roadworthiness inspection. If they have not, that is a sign they know the car will fail. You can still buy the car, but you should negotiate the price down to account for the cost of repairs and the inspection fee.
If the roadworthiness inspection failed, the car has known safety or mechanical problems. Ask the seller what those problems are and whether they have been fixed since the failed inspection. If they have not been fixed, the car cannot be re-registered until they are. Again, you can still buy it, but the price should reflect the cost of repairs.
If the car is not registered at all, do not buy it without understanding why. Contact your state's transport authority and ask whether the vehicle is registered anywhere. If it is not, the seller may not own it legally, or it may have been written off in an accident and declared unfit for the road. Either way, you should walk away.
Rego checks and private sales versus dealer sales
Private sellers are not required to tell you the rego status before you buy, so a rego check is your responsibility. Dealers are required by consumer protection law to sell you a car that is roadworthy and registered (or to clearly state that it is not). Even so, running a rego check yourself takes no time and gives you proof of what the dealer told you.
If you buy from a dealer and the rego check later shows the car was not registered or failed inspection when you bought it, you have grounds to complain to your state's consumer protection body. If you buy privately and discover the same thing after the sale, your options are more limited — which is why a rego check before you hand over money is essential.
Frequently Asked Questions
Can I run a rego check on a car registered in another state?
No. Each state's transport authority only holds records for cars registered in that state. If you need to check a car registered in another state, go to that state's transport website. The process is the same, but you will need to use the correct authority's search tool.
What if the rego check shows the car is stolen?
Do not buy the car and do not drive it. Contact the police and provide them with the registration plate and the seller's details. A stolen vehicle cannot be legally registered in your name, and buying it knowingly is a crime. Even buying it unknowingly puts you at risk of losing the car and the money you paid.
Does a rego check tell me if the car has been in an accident?
No. A rego check only shows registration status and roadworthiness inspection results. To find out about accident history, you need a separate vehicle history report, which you can order from services like REVS or Carsales. These reports cost money but show whether the car has been written off or has a recorded accident claim.
Can I run a rego check on a car I am thinking of renting?
Yes. Before you rent a car from a private owner or small rental company, run a rego check to confirm the registration is current and the car passed its last inspection. This protects you because you know the car is legal to drive and has passed a safety check.
What happens if I buy a car and then discover the rego has expired?
You own the car but cannot legally drive it until you register it. You will need to book a roadworthiness inspection, pay the inspection fee, fix any problems the inspector finds, and then pay the registration fee. If the car fails inspection, you cannot register it until the problems are fixed. This is why running a rego check before you buy is so important.