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A tax charged on fuel, commonly set as an amount per unit rather than a percentage of the final selling price.
Save conceptFuel duty is a tax on fuel that is commonly specified as a charge for each unit sold, such as a litre. This makes it different from a percentage tax on the final bill. The applicable rate and exceptions depend on the country, fuel type and legal rules. A newspaper’s account of a planned increase should be distinguished from the tax currently charged.
A fuel supplier’s underlying costs and commercial pricing combine with tax charges to form the retail bill. With a per-litre duty, the duty amount grows with the quantity purchased. UK government guidance explains that is also applied to fuel duty. The percentage tax therefore has a different base from the quantity charge, and a change to one tax does not automatically remove the other.
Imagine two vehicles buy the same fuel at the same duty rate, but one buys twice as many litres. Its duty amount is twice as large because the charge follows quantity. If the market price changes while the per-litre duty stays fixed, the duty on the same quantity remains unchanged, while a percentage tax can change with the selling price. This is a hypothetical comparison, not a current fuel-price calculation.
A rebate refunds or offsets part of a charge for eligible users under specified rules. It is different from reducing the general duty rate for everyone. An industry request for a rebate does not establish eligibility, payment or enactment. Likewise, a forecast that tax relief would lower costs is not proof that every retailer will pass it through in the same way.
UK diesel van fuel costs could rise by £2.5 billion as duty plans draw criticism