When setting up your expenses you can add different types of mileage allowance depending on office and vehicle type.
First, navigate to your Company Settings.
Next click on the More tab and then Expenses
Scroll to the Mileage allowance section to see a list of existing allowances. You can also add a new mileage type, and edit or delete existing types.
Adding a New Mileage Type
Here you can choose to Set for all offices, set for a specific office, and enter the rate per mile for both the first 10,000 miles and above 10,000 miles.