A new report from Transport for London has revealed almost all penalty charge notices issued involve persistent evaders.
Some 94% of PCNs have been issued to drivers with more than four outstanding notices.
TfL says it recovered more than £16.5million of debt in the first half of 2025.
More than 530 vehicles have been seized and more than 350 sold at auction, with around £285,000 being raised through sales as a result.
Alex Williams, TfL’s Chief Customer & Strategy Officer, said: “We know that we need bold solutions to tackle the public health crisis and poor air quality in London and ULEZ does just that.
“With 97% of vehicles seen driving in London now ULEZ compliant, only a very small minority of vehicles now don’t meet the standards. Most drivers who have vehicles that are liable for the charge are responsible and pay it. It is only a small group of persistent evaders who fail to do so.
“We want to make it clear that if you receive a penalty charge for driving in the zone, you should not ignore it. Your penalty will progress to enforcement agents to recover what you owe, and there is a risk that your vehicle and other items of property will be removed. If you’re ignoring it because you are facing financial difficulties, please instead engage with our staff, who can consider your individual circumstances and work with you.”
