Mileage allowance calculator
Work out how much you can claim back for using your own car on business. The calculator uses HMRC's approved mileage rates for 2026/27: 55p a mile for your first 10,000 business miles, then 25p a mile after that. Add a single trip, a full week of journeys, or your whole year.
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OpenHow this is calculated
- Pick how you want to claim: a single trip, a week of journeys, or your total miles for the year.
- Set the distance with the slider or type it in. The slider gives you fine control under 50 miles and a wider reach above it, so it's quick to set on a phone.
- For a single trip, the claim is your miles times the rate. At 55p a mile, 20 miles is 20 × 55p = £11.00. Tick "return trip" to double the distance.
- For a week, add the miles for each day, tick the journeys that were return trips, and the calculator totals the miles and the money.
- For a full year, HMRC pays the higher rate on your first 10,000 business miles, then the lower rate above that. The yearly tab splits your miles across both rates.
- The 2026/27 rates are 55p a mile up to 10,000 miles and 25p a mile after. Change the rate box if your employer pays a different amount.
Frequently asked questions
How much can I claim per mile in 2026/27?
HMRC's approved rate is 55p a mile for the first 10,000 business miles you drive in the tax year, then 25p a mile above that. The 55p rate took effect on 6 April 2026, up from 45p, which was the first change since 2011.
Does the mileage rate change after 10,000 miles?
Yes. For cars and vans the higher rate covers your first 10,000 business miles in the tax year. Every mile after that is paid at the lower rate. The yearly tab works out the split for you.
What if my employer pays less than the HMRC rate?
Enter the rate your employer actually pays. If it is below the approved rate, you can claim tax relief on the difference through HMRC. This is Mileage Allowance Relief, the tax back on the gap between what you were paid and the approved rate.
Can I claim mileage if I'm self-employed?
Yes. If you are self-employed you can use the same approved rates as a simple way to claim vehicle costs on your Self Assessment, instead of working out the actual running cost of the car. You have to use the same method for the life of the vehicle.
What are the rates for motorcycles and bicycles?
Motorcycles are 24p a mile and bicycles are 20p a mile. Both are flat rates with no 10,000-mile change. This calculator uses the car and van rate by default, so change the rate box if you are claiming for a motorcycle or bike.
Does mileage cover my commute to work?
No. Ordinary commuting between home and your permanent workplace is not business travel, so you cannot claim it. Travel to a temporary workplace, or between work sites during the day, does count.
A pocket logbook for the date, route and miles of each business trip. HMRC can ask for evidence of your mileage, so a written record keeps your claim solid.
This calculator is for general guidance only. It does not replace advice from a tax adviser or accountant on your personal circumstances.
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