Mileage Reimbursement Calculator
From the business miles driven, a per-mile rate and other expenses, work out the total mileage reimbursement claim.
Input Data
Results
At a glance:Mileage reimbursement repays vehicle use for work. Reimbursement = business miles × rate per mile + other expenses. The rate per mile reflects the cost of running the vehicle.
Formula
Total reimbursement = business miles × rate per mile + other expenses.
$$Reimbursement = Distance \times Rate\ per\ Unit$$How to Use
- Enter the business miles driven.
- Enter the rate per mile and any other expenses.
- Read the total reimbursement claim.
FAQ
How is mileage reimbursement calculated, and why reimburse by the mile?
The calculation is simple: reimbursement = business miles × rate per mile (plus any other expenses). Using your own car for work costs more than just fuel — depreciation, maintenance, tyres, insurance and licensing all add up. Rather than ask staff to claim each item separately, employers use a single all-in rate per mile that covers those running costs. It is easy for the employee to log and for the company to budget, and it is fairer — the more you drive for work, the more you are repaid.
What rate per mile should I use, and is there a standard?
There is no single 'right' number; it depends on company policy and, in some places, a tax authority's published standard rate. The US IRS publishes a standard business mileage rate each year, but Hong Kong's tax system differs and has no directly equivalent statutory standard mileage rate. A reasonable rate should roughly reflect the true all-in cost per mile (fuel, depreciation, upkeep, insurance). Set it too low and staff lose out; too high and the excess may be treated as taxable pay. Always follow your employer's policy and the Inland Revenue Department's rules if tax is involved.
What should I watch out for when claiming mileage?
A few practical points. First, keep accurate records of business trips — date, route, purpose and distance. Second, separate business from private miles: commuting between home and a fixed office is usually private and not claimable. Third, keep units consistent (miles with a per-mile rate). Fourth, check whether the rate already covers fuel and upkeep, or whether tolls and parking are claimed separately. Finally, an excessive rate may be seen as taxable income. This calculator gives the base amount; the actual claimable and tax-deductible figures follow your company and the IRD.
Is a flat per-mile rate or actual fuel reimbursement better?
Each has trade-offs depending on volume and admin burden. A flat per-mile rate (this tool's approach) bundles fuel, depreciation, maintenance and insurance into one figure — simple to record and budget, and fairer to high-mileage staff. The downside is that a poorly set rate leaves one side short. Actual fuel reimbursement only refunds petrol from receipts — seemingly precise, but it ignores depreciation, maintenance and insurance, hurting the employee long term, and the receipts are fiddly to verify. For staff who regularly use their own car for work, a flat per-mile rate is usually fairer and simpler; for rare use or company-provided vehicles, actual fuel or a fuel card may suit. The key is that the rate reflects true all-in cost.
Related Tools
References
Content review: Calculatorism Finance Team. Results are for reference only; please refer to the relevant authorities for the official figures.