Car Lease Mileage Overage Calculator
Project the excess mileage charge on your car lease from the miles you drive now.
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How to do it
- 1Configure Business Structure & Billings
Select your company entity (GmbH vs UG, Auto-entrepreneur, ZZP, Autónomo), billing currency, and hourly or dividend rates.
- 2What Car Lease Mileage Overage Calculator does for you
Project the excess mileage charge on your car lease from the miles you drive now.
- 3Calculate Contributions & Statutory Interest
The engine deducts social security charges, computes statutory late payment interest under EU Directive 2011/7/EU, or formats Peppol XML.
- 4Review Take-Home & Export Electronic Invoices
Identify the optimal director salary vs dividend split, preview Peppol BIS Billing 3.0 e-invoices, and download itemized calculations.
About this tool
Enter your yearly mileage allowance, the lease term, your current odometer reading and months into the lease, and the overage fee per mile. The calculator projects your total miles at the end of the lease and the charge for going over.
How the projection works
Your current pace in miles per month is your odometer reading divided by the months you have driven. Multiplied by the lease term, it gives the miles you will reach at lease end. Anything above the total allowance (yearly allowance × years) is charged at the overage fee, commonly 15 to 30 cents a mile.
Ways to reduce it
Some leases let you buy extra miles at the start for less than the overage fee; the tool shows what the extra miles would cost at your price per mile. Ask your lessor whether unused miles can be transferred or if you can buy out the car.
Note
The projection assumes you keep driving at the same pace. Odometer readings at the start of the lease (not zero) should be subtracted before entering.
Worked example
A 36-month lease with 12,000 miles a year (36,000 total) and 21,000 miles after 18 months is on pace for 42,000, which is 6,000 over. At $0.25 a mile that is $1,500; buying the extra miles up front at $0.12 would cost $720, saving $780.
Tips for best results
Check every box before you rely on a result, because one wrong digit changes the whole answer. Use the exact figures from your payslip, bill, certificate or contract, and keep a note of the date you calculated. Rates, thresholds and rules change from time to time, so for tax, fees and legal matters treat the output as an estimate and confirm with the official source named on this page. You can run as many scenarios as you like; nothing is saved or sent, and refreshing the page clears the boxes.
Quick facts
- Category: UK & US
- Works in your browser, no sign-up, no upload.
- Your input stays on your device.
- Available in English.
- Content last reviewed:
Frequently asked questions
Where do I find the overage fee?
In your lease agreement, usually 15 to 30 cents a mile.
Can I buy extra miles later?
Some lessors allow it at a lower price than the end-of-lease fee. Ask early.
Do I have to pay if I buy the car?
No, there is no mileage charge if you buy the vehicle at the end of the lease.
What if I drive more in the second half?
The projection assumes a steady pace. Update the numbers as the lease goes on.