After 16 years of freezes and a 5p cut that was only ever meant to be temporary, UK fuel duty is finally going up. The government has confirmed a staged increase that begins on 1 September 2026, with two more rises before April 2027. From there, fuel duty will rise automatically with inflation every year.
For most drivers, the changes are modest individually — a penny here, two pence there — but they compound quickly. Here's exactly what's changing, when, and how much it will cost the average household.
The staged timetable
The 5p cut introduced in March 2022 will be unwound in three steps:
| Date | Duty change | Pump price impact (with VAT) |
|---|---|---|
| 1 September 2026 | +1p per litre | ~1.2p per litre at the pump |
| 1 December 2026 | +2p per litre | ~2.4p per litre at the pump |
| 1 March 2027 | +2p per litre | ~2.4p per litre at the pump |
| From April 2027 | RPI-linked annual rises | ~1.5–2p per litre per year |
By March 2027, the cumulative effect is roughly 6p per litre higher at the pump than today — assuming wholesale prices stay flat. The penny-per-litre figures look small, but they multiply across every fill-up for years to come.
What it costs in practice
Most drivers will feel the rises most clearly at the monthly fill-up. Here's what the staged increases mean for a typical 55-litre tank:
- From 1 September 2026: around 70p extra per fill-up
- From 1 December 2026: around £2.10 extra per fill-up
- From 1 March 2027: around £2.75 extra per fill-up
Over a year of average driving — roughly 7,400 miles for a UK car — that adds up:
- A petrol car doing 45 mpg uses around 750 litres a year. The full 6p rise translates to about £45 extra annually.
- A diesel car doing 50 mpg uses around 670 litres. The full rise is about £40 extra annually.
- High-mileage drivers (15,000+ miles per year) will see closer to £100–£120 extra annually once the full duty rise is in place.
Those numbers assume only the duty change. If wholesale fuel prices also rise — as they have through early 2026 due to ongoing Middle East tensions — the increases compound.
Why duty is rising now
Fuel duty has been politically toxic for a long time. The headline rate of 57.95p per litre has been frozen since 2011, despite RPI inflation that would otherwise have pushed it close to 80p. In March 2022, when pump prices briefly approached £2 per litre during the energy crisis, the government added a temporary 5p cut on top of the freeze, bringing the duty rate down to 52.95p.
That cut was extended twice but was always intended to be reversed. Treasury estimates suggested the cut was costing the Exchequer around £2 billion a year in lost revenue. With public finances under pressure and other tax-raising options politically constrained, ending the cut was the path of least political resistance.
The decision to stage the rise over three steps — rather than reversing the full 5p at once — is designed to soften the headline impact and avoid a single price shock at the pumps.
Petrol and diesel: both equally affected
A common misconception is that fuel duty differs between petrol and diesel. It does not. The duty rate is the same flat 52.95p per litre on both fuels, and the September 2026 to March 2027 rises apply identically.
Diesel drivers have already been hit harder by recent price rises — diesel sat at around 190p per litre in early 2026 while petrol was closer to 155p — but that's down to wholesale market dynamics, not duty differences. If you're weighing up petrol vs diesel vs hybrid, the fuel duty rise affects both equally, so it doesn't change the underlying calculation.
Electric vehicles: not exempt, just differently taxed
EV drivers don't pay fuel duty, since they don't use petrol or diesel. But they're no longer exempt from road tax either. Since April 2025, EVs pay Vehicle Excise Duty — £10 in the first year and £200/year from year two (2026/27 rates).
The government is now consulting on a longer-term solution: electric vehicle excise duty (eVED), a per-mile system designed to replace lost fuel duty revenue as the EV fleet grows. The consultation closed in March 2026 and a full scheme is unlikely before 2028 at the earliest. For now, EVs remain significantly cheaper to run per mile than petrol or diesel — typically 4–6p per mile on home charging compared to 15–18p per mile on petrol.
If your annual mileage is high and you've been thinking about switching, the fuel duty rises tilt the maths further toward electric. The Electric Car Grant launched in July 2025 now offers up to £3,750 off eligible new EVs under £37,000.
From April 2027: annual rises become the norm
The most significant change isn't the 5p reversal itself — it's what happens afterwards. From April 2027, fuel duty will rise automatically every year in line with RPI inflation, ending the freeze that has been in place since 2011.
That means no more dramatic one-off rises. Instead, drivers should expect:
- 1.5p–2p per litre per year if RPI runs at 3–4%
- Higher rises if inflation runs hotter
- Compounding effect — by 2030, fuel duty could be 8–10p per litre higher than today even without any further policy changes
For long-term running cost planning — especially if you're buying a new petrol or diesel car you intend to keep for 5–10 years — this predictable upward trajectory is worth factoring in.
How to soften the blow
You can't avoid duty rises, but you can offset them. The biggest gains come from things drivers tend to forget:
- Keep your tyres at the correct pressure. Under-inflated tyres can reduce fuel economy by 3–5%, easily wiping out the next year of duty rises.
- Drop weight from the boot. Carrying around 50kg you don't need costs roughly 2% in fuel economy.
- Use the cheapest forecourt within reason. Prices vary by 10–15p per litre between supermarkets and motorway services. A free app like PetrolPrices can show the cheapest nearby.
- Service your car on time. A worn air filter, dirty fuel injectors, or fouled spark plugs can each cost 5–10% in fuel economy. A regular service usually pays for itself in fuel saved.
- Drive smoother. Hard acceleration and heavy braking can cut fuel economy by 15–25%. Anticipating traffic and easing off earlier is the single biggest behavioural lever.
For a deeper look at what the price rises mean for monthly motoring budgets, our UK fuel prices 2026 guide covers the wider market context, and our petrol vs diesel vs hybrid vs electric comparison sets out per-mile costs across fuel types.
A well-maintained car uses less fuel
Of the five tips above, the one most drivers neglect is keeping the car properly serviced. A clogged air filter, ageing spark plugs, or a sluggish oxygen sensor can each quietly cost a few percent in fuel economy — and they compound. By the time the engine management light comes on, you've often paid more in extra fuel than the repair itself would have cost.
Compare service prices at local garages on BookMyGarage — enter your registration to see prices for an interim or full service near you. Many garages bundle a free fuel-economy check or oil-and-filter top-up into a routine service, which goes a long way toward offsetting the upcoming duty rises.
The bottom line
Fuel duty rises of 1p, then 2p, then 2p don't sound dramatic — but they end a 16-year freeze and signal a permanent shift toward duty that rises every year with inflation. For drivers, the practical impact builds slowly: an extra 70p on a tank in September, an extra £2.75 by next spring, and a steady creep upward thereafter.
The drivers who feel it least are those who keep their cars in good condition, shop around for fuel, and drive smoothly. The drivers who feel it most are those who do high mileage in older, poorly serviced cars on motorway services. Wherever you fall on that spectrum, a service and a tyre-pressure check are the cheapest hedges available.
For weekly average pump prices and how they're moving, our live fuel price tracker is updated every week with the latest government data.