HMRC Business Mileage Calculator

Enter your car details, energy cost, journey and year-to-date (YTD) business miles. We’ll calculate your actual trip cost and your HMRC mileage allowance for a single and a return journey, applying 45p/mi up to 10,000 miles then 25p/mi after.

Disclaimer: HMRC mileage allowance rates are correct at time of writing but may change in the future. Always check the latest HMRC guidance.

1) Fuel type

2) Your car

3) Your energy price

For petrol/diesel, enter price per litre. For EVs, enter price per kWh. Values are editable.

4) Journey

5) Your YTD business miles

We’ll automatically apply 45p/mi until you reach 10,000 mi in the tax year, then 25p/mi after that.

Your results

Enter your details above and click Calculate to see results.

Disclaimer: HMRC mileage allowance rates are correct at time of writing but may change in the future. Always check the latest HMRC guidance.