Overview

• TfL says 94% of outstanding Ulez debt is owed by drivers with four or more unpaid penalty charge notices.
• About £16.5 million was recovered in the first half of 2025, with more than 530 vehicles seized and over 350 sold at auction raising roughly £285,000.
• Officials are pursuing tougher civil remedies that may include bankruptcy petitions, recovery from earnings, and securing payment before a property sale.
• An intelligence-led push is under way using data from the Department for Transport and the DVLA, alongside trials of clearer penalty notices to prompt earlier engagement.
• More than 97% of vehicles seen in London now meet Ulez standards, though enforcement has been complicated by plate tampering, vandalised cameras and some rescinded PCNs.