The pitch for electric cars always leaned on costs. No fuel taxes, no trips to the pump, cheaper miles. Britain took that pitch, wrote it into policy, and championed the switch to battery power. Now the treasury has noticed the obvious problem: every electric car on the road is a customer who no longer pays fuel duty, and fuel duty is a very large number.
The response is a new mileage-based charge on electric and plug-in vehicles. For the average British battery-electric driver it works out to roughly $348 a year, and the mechanism behind it is exactly the kind of thing certain American states are already testing. If you want a preview of how a mileage tax lands on EV owners, Britain has just built one.
The new tax is called Electric Vehicle Excise Duty, or eVED, and it takes effect on April 1, 2028. Battery electric vehicles and hydrogen fuel-cell cars will pay 3 pence/4 cents per mile. Plug-in hybrids will pay 1.5 pence/2 cents per mile, a lower rate the government justifies on the grounds that plug-in hybrids already buy petrol or diesel and therefore already pay fuel duty. Those rates rise with inflation starting in the 2029-to-2030 year, so the real-terms value of the charge does not erode over time.
The Office for Budget Responsibility puts the bill at £255, or about $348 at current exchange rates, for someone driving 8,500 miles a year in a battery car. The government expects eVED to raise £1.1 billion in its first full year and £1.9 billion by 2030/31.
The most important detail is that this is an addition, not a replacement. Britain already brought electric cars into the standard Vehicle Excise Duty regime, so a zero-emission car pays a token £10 first-year rate and then £200 a year thereafter — the same standard rate a petrol or diesel car pays. Cars with a list price above £50,000 also attract an expensive car supplement of £440 a year for five years. Layer the new per-mile charge on top of all that, and British EV owners end up paying more into the treasury than their combustion-engined neighbors.
The justification is straightforward arithmetic. Fuel duty is charged per liter and raised £24.4 billion in 2024/25, while VED raised £8.4 billion. As drivers move to electric cars, the fuel-duty pool shrinks. It has already fallen from 1.7% of gross domestic product in 2010/11 to 0.8% in 2024/25, partly because more people drive electric and partly because the fuel-duty rate has not risen with inflation since 2011. The OBR expects it to reach 0.1% of GDP by 2050/51, though that far-out figure is speculative.
The government frames eVED as replacing that lost revenue with a charge that, like fuel duty, scales with how much you drive. It also says the per-mile rate sits below the equivalent fuel-duty level to keep some incentive to go electric. The OBR is less rosy on demand: it forecasts around 440,000 fewer EV sales over its projection period because of the added lifetime cost, though it expects other measures, such as a larger electric-car grant, to offset most of that.
The mechanism is built onto the existing tax renewal. When drivers renew their VED, they will submit an odometer reading and estimate how many miles they expect to drive. They can pay the calculated charge upfront or spread it across the year. At year-end, a second reading triggers a reconciliation, and the driver either settles what they still owe or carries a credit forward.
To keep those estimates honest, the government intends to use mileage data already collected at the annual MOT roadworthiness test. For cars too new to require an MOT, an accredited mileage check would apply instead. The DVLA administers the whole thing.
For the privacy-minded, the government has been explicit: no tracking devices and no collection of where or when you drive. That is the reassurance. The frustrations are elsewhere. UK-registered cars owe the tax even on miles driven abroad, and cars normally exempt from VED are not exempt from eVED, because the charge is meant to mirror fuel duty broadly. The measure is expected to hit around 5.6 million vehicles in its first full year. Motorcycles and vans are left out for now, on the reasoning that their shift to electric is less advanced.
To see how this lands stateside, run it through a Tesla Model Y, one of America's bestsellers. Take a Model Y Premium AWD with a combined efficiency of 123 MPGe, consumption of 27 kWh per 100 miles, and 327 miles of range. Over a nominal 60,000 miles across five years, that is 16,200 kWh.
At the Energy Information Administration's average residential rate of about 18.27 cents per kWh, that electricity is worth roughly $2,960 if prices held steady. Apply a 3p-per-mile charge and the tax alone comes to about $2,457. Together, electricity plus the illustrative charge lands near $5,417. That excludes depreciation, insurance, tires, and everything else, so it is not a full cost-of-ownership figure — but it shows a British-style charge adding about $2,457 to whatever 60,000-mile baseline the owner started with.
For comparison, Toyota rates the RAV4 Hybrid at 43 MPG combined in front-drive form and 41 MPG for the AWD version. At the EIA's forecast gas price of $3.78 a gallon, the hybrid runs about $5,274 to $5,532 over the same distance, which puts the taxed Model Y almost exactly in between.
That gas figure carries weight. Before recent Middle East disruption, the EIA had forecast around $2.92 a gallon, and it expects prices to ease to $3.29. Use $3.29 as the normal-times number and the RAV4 falls to $4,591 to $4,815, which makes the taxed Model Y $602 to $826 more expensive. Charging habits swing it further. Home charging costs about 18.27 cents per kWh, but public charging runs closer to 42.0 cents. Charge exclusively in public and the electricity alone hits about $6,804, pushing the total with the hypothetical charge to $9,261.
A federal version of eVED may or may not arrive, but individual states are not waiting. Hawaii is the clearest American parallel. Since July 2025, eligible EV owners there can choose either a road usage charge of 0.8 cent per mile, capped at $50 a year, or a flat $50 annual charge. The state gathers odometer readings during its own periodic vehicle inspection — the same MOT-style mechanism Britain plans to lean on.
The lesson from Britain is that the mileage tax follows EV adoption, not the other way around. Once electric cars are common enough to dent fuel-tax revenue, the charge appears. If you drive an EV in a state weighing road-usage fees, watch whether the charge replaces an existing fee or stacks on top of one, as Britain's does. Watch the per-mile rate against local electricity and gas prices, because that ratio decides whether an EV still saves you money. And if you rely on public charging, factor in that the fee lands hardest on drivers who already pay the most per kWh.
[Images: General Motors, EVgo, Mercedes-Benz, Hyundai, ChargePoint]
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