UK Fuel Duty 2026: What Every Driver Needs to Know

Every time you fill up a car in the UK, more than half of what you pay at the pump goes directly to the Treasury before a penny reaches the fuel producer or retailer. Understanding how fuel duty and VAT combine -- and how to reclaim costs through mileage allowances -- can make a meaningful difference to your annual motoring bill.

How Fuel Duty Is Structured in 2026

Fuel duty is an excise duty -- a flat per-unit tax on volume, not on value. In 2026, the main rate is 52.95 pence per litre for both unleaded petrol and standard diesel. This is the rate that applies at every forecourt across Great Britain and Northern Ireland.

The 5p per litre cut that was announced by the Chancellor in March 2022 -- as a response to a sharp spike in global oil prices -- has been retained and rolled forward. Without that cut, the rate would be 57.95p/litre. The retained cut costs the Treasury approximately £2.5 billion per year in foregone revenue, a figure that has made it politically difficult to fully reverse.

When you fill a 55-litre tank, the fuel duty element alone is approximately £29.12. That is before a single drop of crude oil, refining cost or retailer margin is counted.

Reduced duty rates apply to specific fuel categories:

• Red diesel (gas oil): 11.14p/litre -- used in agricultural machinery, construction equipment and heating
• Biodiesel and bioethanol used as road fuel: 52.95p/litre (same as standard rates)
• Natural gas used as road fuel: 24.70p/kg
• LPG used as road fuel: 31.61p/kg

VAT on Fuel: A Tax on a Tax

On top of fuel duty, VAT is charged at the standard 20% rate on everything at the pump. Crucially, this includes the fuel duty itself, not just the underlying cost of the fuel. This means you pay VAT on the tax -- a compounding effect that increases the proportion of your fill-up going to the government.

At a typical pump price of 140p per litre, the breakdown works roughly as follows:

• Fuel duty: 52.95p
• Underlying cost (crude oil, refining, retail margin): approximately 63.71p
• VAT at 20% on the total of both: approximately 23.33p

That means approximately 76.28p of every litre -- around 54% -- is tax. The proportion shifts as crude oil prices move, but the structural point holds: fuel is one of the most heavily taxed everyday consumer goods in the UK.

For VAT-registered businesses using vehicles exclusively for business purposes, the VAT element on fuel can be reclaimed. However, if a vehicle is available for private use -- as is the case for most company cars -- only 50% of the VAT on fuel can be reclaimed. Many businesses find it simpler to pay drivers the mileage allowance rather than reclaiming fuel VAT directly.

Business Mileage: The 45p/Mile Rule

The HMRC Approved Mileage Allowance Payment (AMAP) scheme sets the tax-free rates at which employers can reimburse employees -- or self-employed individuals can claim -- for using a personal vehicle for business travel:

• Cars and vans: 45p per mile for the first 10,000 miles per tax year; 25p per mile thereafter
• Motorcycles: 24p per mile
• Bicycles: 20p per mile

These rates have not changed since 2011, despite significant increases in fuel costs, insurance and vehicle running expenses in the intervening years. At current pump prices, the 45p rate broadly covers fuel plus a contribution to wear and tear, insurance and depreciation for an average car -- but the margin has compressed considerably in recent years.

If your employer pays you less than the AMAP rate, you can claim Mileage Allowance Relief from HMRC. This is done through self-assessment or by completing form P87 if you are a PAYE employee who does not normally complete a tax return.

Self-Employed Mileage Claim

Self-employed individuals can choose between two methods for claiming motor expenses:

1. Actual costs method: Record all actual costs (fuel, insurance, servicing, road tax, depreciation) and apportion the business percentage. This requires detailed records and works well if business mileage is high relative to total use.

2. Simplified expenses (flat rate mileage): Claim the same AMAP rates -- 45p per mile up to 10,000 miles, 25p thereafter -- without needing to track individual receipts. Once you start using the flat rate for a vehicle, you must continue with it for the life of that vehicle in your business.

For a self-employed person driving 12,000 business miles per year, the simplified claim is: (10,000 x £0.45) + (2,000 x £0.25) = £4,500 + £500 = £5,000 tax relief

At the basic rate of 20%, this saves £1,000 in tax. At the higher rate of 40%, the saving rises to £2,000.

UK Fuel Duty vs. Europe: A Comparison

The UK fuel duty rate of 52.95p/litre (approximately 63 euro cents at current exchange rates) places Britain in roughly the middle of the European range. However, the total pump price varies considerably because of differences in VAT rates, distribution costs and local market conditions.

Countries with notably higher pump prices than the UK include the Netherlands, where fuel taxes and VAT (21%) combine with high base product costs, and Italy, where fuel taxes have historically been very high. Germany has a fuel duty rate roughly comparable to the UK but a slightly lower VAT rate of 19%.

Countries where fuel is cheaper than in the UK include most Eastern European nations -- Poland, Romania and Hungary -- where lower duty rates and VAT apply. Some oil-producing countries outside Europe (Saudi Arabia, US states) maintain dramatically lower pump prices through direct fuel subsidies or low taxation.

For UK drivers crossing into continental Europe, remember that pump prices are quoted per litre in all EU countries, making direct comparison straightforward. Paying by a UK debit or credit card abroad may incur foreign transaction fees unless you use a specialist travel card.

The fundamental picture for UK drivers in 2026 remains unchanged: a combination of specific duty and percentage VAT means that in periods of low crude oil prices, tax forms the majority of the pump price, while in periods of high crude prices, the proportions shift but the absolute tax take remains the same on a per-litre basis.