Business Mileage Rate 2025 Uk. If you’ve travelled under 10,000 miles in the current tax year you can use this simple calculator to work out how. It is currently set at 45p per mile for the first.
This is covered in travelperk’s short guide to mileage allowance in the uk. To calculate the ‘approved amount’, multiply your employee’s business travel miles for the year by the rate per mile for their vehicle.