The government estimates around £110,000 is being lost in income from untaxed vehicles.
That's according to Infrastructure Minister Tim Crookall, in response to a Tynwald question for written reply from Rushen MHK Juan Watterson.
Mr Crookall says between one to two percent of vehicles currently on the roads are untaxed.
He added the Department of Infrastructure can't give an exact figure, but calculated the number based on an average tax of £165 for small passenger and goods vehicles.
One per week caught on their phone while driving
Just under one person a week is caught using their mobile phones behind the wheel.
Tree planting finishes at major new nature reserve
Tree planting in the East Baldwin valley has now finished, in what Manx Wildlife Trust's calling a major milestone.
Mountain Road to shut for two weeks from today
The Mountain Road will be shutting for two weeks from today.
Nearly £1k raised for Garfield's chemo
Nearly £1,000 has been raised to get chemotherapy for a beloved cat.
Laws to control gas prices move forward in LegCo today
Legislation which could bring in price controls to protect gas consumers is making progress through parliament.
Busy road to close again this week
A section of road at Kewaigue will close for two weekends from this week.
Island marks Bowel Cancer Awareness Month for second year
Public Health and Manx Care are marking Bowel Cancer Awareness Month for the second time running.
Cabinet Office can't say how many voter letters get returned
The Cabinet Office minister says it's not possible to say how many voter registration letters have been returned to sender.
