Car tax and petrol vs diesel UK 2026: the difference in road tax between petrol and diesel cars. First-year rates, standard rates and the diesel supplement that applies to certain vehicles.
Understanding Petrol vs Diesel Tax UK 2026
Vehicle Excise Duty (VED) rules in the UK cover a wide range of vehicle types and uses. Understanding how road tax applies to your specific situation is essential for staying compliant with DVLA requirements and avoiding fines.
VED Rates and Classifications
UK road tax is calculated based on vehicle type, CO2 emissions and usage. The following table summarises key rates for petrol vs diesel tax uk 2026:
| Vehicle Type | VED Class | Notes | Annual Cost |
|---|---|---|---|
| Petrol Band D | First year | No supplement | £185 |
| Diesel Band D | First year | Plus £30 | £215 |
| Petrol Band D | Standard year 2 plus | Same rate | £165 |
How Road Tax Works for This Vehicle Type
Diesel cars pay more road tax in the first year than equivalent petrol cars due to the diesel vehicle excise duty supplement of £30. This supplement applies to most diesel cars registered after 2018 that do not meet Real Driving Emissions Step 2 (RDE2) standards. From year two onwards, both fuel types are taxed identically based purely on CO2 emissions. Related: Car Tax and Petrol vs Diesel UK 2026 | Car Tax | Car Tax | Car Tax Petrol Diesel Hybrid UK 2026.
Key Takeaways
- Diesel Supplement Year 1: Diesel cars pay £30 extra in the first year of road tax
- Year 2 Parity: From year two, petrol and diesel cars pay the same standard VED rate
Note: Diesel cars that meet RDE2 emission standards do not pay the diesel supplement. Many newer diesel vehicles from 2020 onwards meet RDE2, so check your V5C for the emissions standard before assuming the supplement applies.
For more information about UK vehicle tax and to calculate your specific road tax obligations, use our free car tax calculator covering all UK vehicle types and emissions bands.
Official Resources: GOV.UK Check Vehicle Tax | GOV.UK Vehicle Tax | DVLA Online | MOT Check
Frequently Asked Questions
Q: How much is car tax (VED) in the UK 2026?
Car tax rates in the UK depend on your vehicle's CO2 emissions and list price. Standard rates start from £190 per year for petrol and diesel cars, with zero-rated VED for EVs. First-year rates vary from £0 to £2,605 depending on emissions. Additional premiums apply for vehicles over £40,000.
Q: How do I check if my car is taxed online?
You can check your vehicle's tax status for free on the Gov.uk website at gov.uk/check-vehicle-tax. You'll need your vehicle's registration number (number plate). You can also check via the Motor Insurance Database to verify road tax and insurance status simultaneously.
Q: Can I get a refund on car tax if I sell my vehicle?
Yes — if you sell or scrap your vehicle, you can claim a refund on any full months of remaining road tax. Contact DVLA with the V11 reminder letter or apply online at gov.uk. Refunds are usually processed within 4-6 weeks.
Q: Is road tax refund available when transferring ownership?
No — road tax does not transfer with the vehicle. When you sell your car, the tax is automatically cancelled and any remaining months are refunded to you by DVLA. The new owner must tax the vehicle immediately. As a buyer, always verify the vehicle's tax status before purchasing.
Q: What is the luxury car tax threshold in the UK 2026?
The additional rate for vehicles over £40,000 (list price) adds £410 per year to standard VED rates for years 2-6 of registration. This surcharge brings the annual cost for high-emission vehicles over £40,000 to around £600-690 per year. Pure EVs under £40,000 pay zero VED.