Mileage Calculator 2025 Uk Gov. You can use this mileage reimbursement calculator to determine the deductible costs associated with running a vehicle for medical, charitable, business, or moving. Find out about advisory fuel rates for company car users, when you can use them, and how they're calculated.

However, this does come with its own rules and regulations. Use our free 2025 mileage reimbursement calculator to claim back your business mile expenses.