Last known plate
On the Tags and holders screen, a Last known plate widget appears alongside your tag serial number. This is the last licence plate number we’ve detected travelling on a toll road with this tag. The Last known plate is updated whenever our tolling system is able to detect both your tag and a vehicle licence plate number.
Vehicle not on account
If we detect your tag in a vehicle that is not on your account, the licence plate number is highlighted in red and an Add to account button appears.
If you continue to travel in this vehicle and your tag stops working, the registered owner of the vehicle will receive a toll invoice that includes extra fees.
To prevent this, log in to your account and add all the vehicles using your tag. If you’re only using a vehicle for a short while, you can set a start and end date, or add it then remove it again later.
Last known plate is unknown
The Last known plate feature was introduced in September 2018, and your recent trip history was used to associate a last known plate to your tags. If you travel infrequently, or we couldn’t read your licence plate clearly, the last known plate may show as ‘unknown’.
The Last known plate will be updated the next time you travel and we’re able to detect both your vehicle licence plate number and your tag.
Uses for Last Known Plate
If you have multiple tags Last Known Plate makes it easier to identify which tag is in which vehicle. This should help you to work out which of your tags might not be beeping or is lost based on the Last Known Plate rather than your tag serial number.
You can also use Last Known Plate alongside your trip history to reconcile tag based trips on your account.
Do I need to allocate tags to my licence plates?
No, our systems match tags to vehicle licence plates automatically.