Most people watching Wednesday’s Budget will have focused on the headline tax cuts, spending commitments, or the ritual theatre of Budget Day. But tucked quietly beneath the surface was something much more significant, arguably one of the most important structural shifts in UK transport policy for a generation. The Treasury has taken its first meaningful step towards pay-per-mile charging for electric vehicles.
On the face of it, this might appear to be a niche technical measure, but in reality, it signals the beginning of a major national shift: the long-anticipated move towards road pricing in the UK.
A £25 Billion Hole the Treasury Can’t Ignore
The UK currently raises around £25 billion a year in fuel duty. As electric vehicles replace petrol and diesel cars, with new sales of Internal Combustion Engine (ICE) vehicles currently slated to be banned from 2030, that revenue could collapse.
Chancellors and Treasury officials have known for years that the existing model of road taxation is unsustainable. This isn’t a new conversation in Whitehall; in fact, the Treasury has been looking at alternatives since at least the early 2000s. There have been periodic leaks, consultations and think-pieces, most notably around the 2005 Feasibility Study into national road pricing, a 2007 petition that forced the issue briefly into the political spotlight, and repeated internal reviews over the last decade warning of a looming “fiscal black hole” as EV uptake accelerates.
Alongside this, Transport for London has also been quietly exploring what a modernised, distance-based system could look like. Successive Mayors have flirted with the idea of replacing the patchwork of the Congestion Charge and ULEZ with a simpler, smarter form of road user charging. Documents, modelling work and strategic discussion at TfL have outlined various forms of distance-based charging, usually framed as a way to rationalise London’s existing schemes, but increasingly relevant in the national context as EVs make the current funding model obsolete.
Taken together, this week’s move should not come as a surprise. The Treasury has known for years that it needed a replacement for fuel duty. A pay-per-mile model is the obvious next step.
Why Pay-Per-Mile Is the Logical Next Step
The appeal for the Treasury is straightforward. A pay-per-mile system creates a direct and predictable link between road use and revenue, something the existing fuel duty regime can no longer provide. It allows the government to maintain income in a decarbonising transport system, while also creating a structure that could, over time, be adapted to manage congestion, encourage off-peak travel, or incentivise cleaner vehicles. Rather than a blunt tax on fuel, it becomes a flexible tool for managing the road network.
The Budget’s move towards an EV-specific pay-per-mile charge is simply the first step. Once the administrative and technological framework exists, the opportunity to expand it becomes much easier.
Road Pricing Is Already Here, Just in a Patchwork
Although Britain has never had a fully national system of road pricing, we already have several forms of road user charging in operation. London’s Congestion Charge was introduced in 2003, with the Ultra Low Emission Zone following in 2019. The Dartford Crossing moved to a free-flow charging system in 2014. The M6 Toll opened in 2003. And the newest example, the Silvertown Tunnel in London, paired with the Blackwall Tunnel, introduced its tolling system in 2025 when the new crossing opened to traffic, with future fare revenues sold off to private investors to fund the upfront capital cost.
These are all examples of road pricing in practice, albeit fragmented and limited in scope. Each uses slightly different rules, technologies and purposes. But collectively, they show that the UK has already crossed the psychological threshold of charging for road use. The Budget simply begins the process of pulling these disparate elements into a more coherent national framework.
How the Rest of the World Already Prices Its Roads
On road pricing, the UK is actually the outlier among major developed economies. Much of Europe long ago normalised the idea that using a road sometimes means paying for it. France and Italy have extensive motorway toll networks; Norway has spent decades using toll rings to manage traffic and fund local transport improvements; and countries like Spain, Austria and Portugal have long experience of charging for motorway use.
In North America, various cities such as Toronto and Los Angeles have introduced tolled express lanes, while New York introduced the first major American congestion charge in January 2025. Australia, meanwhile, has widespread tolling across cities like Sydney and Melbourne.
Germany sits in its own category, with a more sophisticated, technology-driven approach. Since 2005, the LKW-Maut system has charged lorries by the kilometre based on the pollution, weight and class of vehicle, and is in the process of being upgraded to move from ANPR cameras to satellite tracking. It is one of the clearest examples of how distance-based charging can operate at scale and serve multiple policy goals at once. In 2024, the German system raised almost €12 billion in revenue, compared to c. £200m for the UK HGV Levy.
At the frontier is Singapore, which has operated congestion pricing since 1998 and is now upgrading to a GPS-based network of “virtual gantries.” This means drivers no longer pass through physical infrastructure; instead, their journeys are priced dynamically based on time and location. It is a system that is more flexible, more responsive and arguably more equitable than traditional tolling, and it offers a preview of where many countries, including the UK, are likely to head.
What This Means for Drivers
For now, the practical impact on motorists will be limited. But the direction of travel is unmistakable. The EV pay-per-mile provision is the thin end of the wedge – almost certainly a test case for wider application. A significant policy-development process will now begin, perhaps over the next five to ten years, to work out how a national road-pricing system might replace fuel duty entirely.
At present, the government is proposing a system based on self-declaration of miles driven. This is unlikely to be durable or robust in the long term. Inevitably, attention will turn towards more automated options: telematics, onboard vehicle data, or eventually GPS-based systems similar to Singapore’s.
But these come with enormous policy questions attached. Privacy concerns will be front and centre, with many drivers instinctively uneasy about the idea of the government knowing when and where they travel. Technical standards, data protection safeguards, enforcement, interoperability and public acceptability will all have to be navigated carefully.
In other words, this is the beginning of a long and complicated national debate. But it is a debate the UK can no longer avoid.
The Beginning of an Inevitable Shift
Transport policy rarely changes overnight. It evolves quietly, incrementally, until one day the new reality is impossible to ignore. This Budget may well be remembered as the moment when road pricing in Britain ceased to be a theoretical concept and started to become a practical reality. The transition to electric vehicles has made an alternative to fuel duty unavoidable, and stakeholders across the transport sector now need to confront that inevitability.
The task ahead is not simply to accept road pricing but to shape what it becomes. The UK now has an opportunity to design a system that is fair, transparent, technologically sound and socially acceptable.
The debate begins now, and it will define the future of how we move around the country.Find out more about our work on transport
