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2026 HMRC Mileage Claim Calculator Per Journey
Use the Aaron Wallis HMRC Business Mileage Calculator to instantly calculate your actual trip cost and HMRC-approved mileage allowance.
Enter your car details, fuel cost, and journey to work out how much you can claim, how much you'll spend in fuel - and most importantly the difference between the two!
How to use the calculator
Business Mileage Calculator
Work out your actual fuel/energy cost for a business trip and the HMRC mileage allowance you can claim — for a single and a return journey. Applies 55p/mile up to 10,000 miles, then 25p/mile.
We apply 55p/mile until you reach 10,000 miles in the tax year, then 25p/mile after that.
Disclaimer: HMRC Approved Mileage Allowance Payment (AMAP) rates are correct at the time of writing (2026/27 tax year). Rates may change — always check the latest HMRC guidance. AMAP rates apply to business travel, not ordinary commuting.
Things to consider:
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Fuel prices vary: Default 2026 averages are provided but can be adjusted for accuracy.
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Mileage rates change: Always verify current HMRC rates before claiming.
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Accurate data matters: Enter correct journey details and YTD miles for precise results.
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