Illegal Mileage Blockers Could Be Used to Duck Pay-per-Mile EV Tax

Why It Matters

eVED aims to recover lost fuel‑duty revenue, but widespread odometer tampering could undermine the tax’s effectiveness and flood the market with mis‑mileage vehicles, eroding consumer trust.

Key Takeaways

• Mileage blockers freeze odometer, illegal on public roads.
• eVED tax starts 2028, 3p per EV mile.
• Hundreds buying blockers weekly, risk of clocked used cars.
• Treasury plans regulatory steps to curb odometer fraud.
• Blockers cost £200‑£900, marketed for R&D testing.

Pulse Analysis

The upcoming eVED scheme reflects the UK’s effort to offset declining fuel‑duty receipts as electric and plug‑in hybrid cars proliferate. By charging per mile driven, the policy targets a revenue stream directly linked to vehicle usage, with rates set at 3p for pure EVs and 1.5p for PHEVs. While the approach promises a fairer contribution from low‑emission fleets, it also creates a clear financial incentive for drivers to manipulate mileage data, especially for high‑usage vehicles that could face annual bills in the hundreds of pounds.

Mileage blockers are compact electronic modules that intercept odometer signals within a car’s electronic control unit, effectively halting mileage accumulation. Although sold under the guise of research and development tools, they are readily available online for as little as £200 and can be installed in minutes without leaving obvious traces. Autocar’s investigation uncovered a thriving underground market, with suppliers moving 500 units to retail customers each month. The devices are already compatible with popular EV models such as the Volkswagen ID 3, raising concerns that a surge of clocked electric cars could soon appear on the used‑car market, complicating vehicle provenance checks and inflating insurance premiums.

Recognising the threat, the Treasury has signalled a multi‑pronged response, including potential legislative amendments to broaden the definition of odometer tampering and tighter enforcement mechanisms. Industry stakeholders—manufacturers, leasing firms, and insurers—are being consulted to embed detection capabilities at the vehicle‑software level. For fleet operators, the risk translates into higher compliance costs and the need for robust mileage‑verification tools. Ultimately, the success of eVED will hinge on the government’s ability to stay ahead of tampering technologies, ensuring the tax delivers its intended revenue without eroding confidence in vehicle mileage data.