Fuel duty is tied to petrol and diesel
As more drivers move to electric, the tax system has to adapt. A per-mile approach is one way to link contributions to road use rather than fuel consumption.
The UK government has announced a new per-mile car tax for EVs and plug-in hybrids from 2028. This calculator estimates what you could pay based on your mileage, and can also include an optional road tax (VED) estimate.
Not sure what to enter? Pick a common driving pattern and to get a quick estimate.
Tip: if you know your commute, you can estimate yearly miles as distance × trips per week × 52.
| Petrol | Diesel | Hybrid | EV | |
|---|---|---|---|---|
| Price per litre | 154.2p | 186.5p | 154.2p | — |
| Fuel duty | 52.95p | 52.95p | 52.95p | — |
| VAT (20%) | 25.70p | 31.08p | 25.70p | — |
| Total fuel tax | 78.65p | 84.03p | 78.65p | — |
| Total fuel tax (%) | 51.0% | 45.1% | 51.0% | — |
| Avg. consumption | 36 MPG | 43 MPG | 55 MPG | — |
| Fuel cost per mile | 19.47p | 19.72p | 12.75p | — |
| Fuel Tax per mile | 9.93p | 8.88p | 6.50p | — |
| EV per mile tax | 0.0p | 0.0p | 1.5p | 3.0p |
| Total per mile tax | 9.93p | 8.88p | 8.00p | 3.0p |
It estimates your potential annual and monthly cost under a per-mile charging approach using your mileage and vehicle type (EV or plug-in hybrid). If you add a registration year, it can also include an estimated annual VED (road tax).
It uses 3p per mile for fully electric vehicles and 1.5p per mile for plug-in hybrids, based on the assumptions shown on this page.
This calculator treats the per-mile charge as an additional running-cost estimate. Policy could evolve in different ways, so use the results as a guide rather than a guaranteed bill.
A simple way to think about it: a plug-in hybrid can still use petrol for a portion of miles, while a full EV does not. Different rates can be used to reflect that difference.
Use the presets above, or estimate from your weekly routine. For example, a 10-mile each-way commute, 5 days a week is roughly 10 × 2 × 5 × 52 = 5,200 miles/year before weekend trips.
It’s an estimate based on the registration year you enter and common VED rules. Some vehicles can have additional considerations (e.g., list-price supplements or special cases), so treat it as a helpful baseline.
Yes. Any future scheme can be updated by government over time. This page is designed to be transparent about the assumptions it uses so you can quickly adjust them if needed.
Per-mile charging tends to scale with mileage. Drivers who do a lot of miles (commuters, long-distance travel, business users) will typically see a larger impact than low-mileage drivers.
As more drivers move to electric, the tax system has to adapt. A per-mile approach is one way to link contributions to road use rather than fuel consumption.
Flat fees can feel unfair to low-mileage drivers. Mileage-based charging tends to increase costs for high-mileage users and reduce the relative burden on low-mileage drivers.
Any future scheme may evolve (rates, exemptions, caps, regional variations). This tool is best used for planning and scenario testing rather than exact forecasting.
Use this page for “what-if” planning: try your current mileage, then test what happens if you drive 10–20% less, change vehicle type, or update registration year.
This table is designed to help you sense-check how the proposed per-mile charge compares with typical petrol/diesel fuel spend. It uses “low / typical / commuter / high” mileage bands and shows estimated annual cost by engine type.
Assumptions used for the estimates:
• EV per-mile charge: 3p/mile (your model)
• Plug-in hybrid per-mile charge: 1.5p/mile (your model)
• Petrol fuel cost: based on 133.43p/litre and 36 mpg average petrol efficiency
• Diesel fuel cost: based on 142.63p/litre and 43 mpg average diesel efficiency
• Hybrid fuel efficiency (for the “Hybrid” column): 59 mpg (used as a rough “average hybrid” fuel figure) + the 1.5p/mile per-mile charge
Sources: UK weekly road fuel prices (week commencing 12 January 2026) and mpg guidance for average fuel economy figures. Fuel prices (GOV.UK), Average mpg figures
| Mileage band | EV 3p/mile charge |
Hybrid (plug-in) 1.5p/mile + avg hybrid fuel |
Petrol avg car fuel estimate |
Diesel avg car fuel estimate |
|---|---|---|---|---|
| Low mileage 4,000 miles/year |
£120 | £471 | £674 | £603 |
| Typical driver 8,000 miles/year |
£240 | £942 | £1,348 | £1,206 |
| Commuter 12,000 miles/year |
£360 | £1,414 | £2,022 | £1,810 |
| High mileage 20,000 miles/year |
£600 | £2,356 | £3,370 | £3,016 |
Important: petrol/diesel figures are fuel-only estimates and don’t include servicing, insurance, VED/road tax, or any future policy changes. Hybrid costs vary massively depending on how often you plug in — this “hybrid” column is a rough average to support comparison.