The AA is urging the Chancellor to keep the existing 5p-per-litre fuel-duty reduction and add a further 5p cut in the Budget on 28 October. The proposal is a request, not a government decision. The motoring organisation estimates that the extra duty reduction could lower pump prices by about 6p per litre once VAT is included, but only if retailers pass the full amount on.
What the figures would mean at the pump
On a 55-litre fill, the AA’s illustration puts the potential saving from the additional cut at about £3.30. That arithmetic follows from multiplying the proposed VAT-inclusive 6p reduction by 55 litres. It is an estimate of the effect if passed through in full, rather than a guaranteed change in the price displayed at forecourts. The amount a driver actually pays depends on the policy being adopted and how the duty change is reflected in retail prices.
The AA also compares its proposal with a different outcome: the existing 5p reduction being allowed to disappear, with no further cut introduced. Against that scenario, it says keeping the current reduction and adding another 5p could mean about £6.60 less for a 55-litre fill. The £6.60 figure is not an additional saving on top of the £3.30 in every comparison; it describes the difference between the proposed package and the specified alternative.
Why the AA is making the appeal
In its letter to the Chancellor, the AA argues that higher road-fuel costs affect more than private motorists. Hauliers, tradespeople, delivery firms and other businesses use road transport to move goods or provide services. If their operating costs rise, some may be reflected in the prices charged to customers. That is the organisation’s case for treating fuel duty as part of a wider cost-of-living and business-cost debate, rather than solely a motoring issue.
The AA points to its analysis of the Government’s Fuel Finder data as an indication of pressure at the pumps. It says 2,577 of about 8,000 filling stations were charging at least £2 per litre for diesel at the beginning of October. That is roughly one in three of the stations in the analysis. The figure describes the snapshot and threshold used by the AA; it does not mean every driver was paying that price, nor does it establish a national average for all fuels.
The VAT argument and what comes next
The organisation also asks the Treasury to consider additional VAT receipts associated with rising underlying prices. It cites an estimated £374 million increase in VAT linked to purchasing and maintaining cars in the first six months of 2026 compared with the same period a year earlier. This is an AA estimate drawn from consumer-spending figures, and its stated scope is car purchases and maintenance. It should not be mistaken for a direct measure of VAT collected on fuel or a calculation of the net fiscal cost of the proposed duty change.
The AA’s president, Edmund King, says the existing reduction should be protected before ministers consider a further cut. The sequence matters: the request combines avoiding the loss of the current 5p relief with introducing another 5p reduction. The eventual pump-price effect would depend on a Budget decision and full pass-through, neither of which is established by the appeal itself.
The 28 October Budget is the next decision point identified by the AA. Until then, drivers should distinguish the organisation’s requested package and illustrative savings from tax policy that has actually been adopted. The headline 6p-per-litre figure is conditional, while the £3.30 and £6.60 amounts are comparisons for a 55-litre tank under different assumptions.
