Rental car mileage charges: how to keep a clear odometer record

Find the allowance for this vehicle and this booking

Check the booking confirmation and signed agreement for the included distance, whether it is measured in miles or kilometres, and the rate for going over the limit. An allowance may cover the whole rental or a stated period. If it is daily, check how the agreement counts rental days and what happens if you extend the booking or change cars.

Enterprise's UK guidance says whether unlimited mileage is included depends on the booking and vehicle category; any limit is shown during reservation. SIXT also lists the allowance and extra-distance rate among the details to check on the agreement. Save the confirmed allowance for your booking, as an advert for another car or rental period may offer different terms.

Photograph the total odometer, not only the trip meter

Before driving away, park safely and find the car's total distance reading. A trip meter can be reset and may show a very different number. Include the miles or kilometres indicator where available, and take a wider dashboard view if a close-up makes the display hard to identify. Review the saved photo for reflections and missing digits.

Compare the reading with the rental paperwork before leaving. If the numbers differ, ask staff to correct the starting reading and keep the revised agreement or written acknowledgement. If you are unsure which number on the dashboard is the total odometer, ask someone at the branch to show you.

• Total odometer reading at collection and return.
• Whether the reading and allowance use miles or kilometres.
• Included distance and the stated excess-distance rate.
• Revised terms for an extension or replacement vehicle.
• Return record and the final mileage line on the invoice.

Take the second photo at the actual handover

Photograph the odometer again after parking at the return location and before handing over the keys. A picture taken at the hotel is not the final reading if you still need to drive to the branch. Keep the photograph of the full display even if you later make a separate crop to highlight the number in a support message.

Take the odometer photo while completing your PickupLens return scan, before you lose access to the dashboard. The app keeps the return condition photos separate from collection, and your odometer pictures give you the two readings to compare yourself. It does not automatically read the mileage or calculate the rental charge.

Check the mileage calculation in the same units

Subtract the starting odometer reading from the ending reading, then compare the distance with your agreed allowance. For example, readings of 12,340 miles at collection and 12,760 at return mean you drove 420 miles. With a 500-mile allowance for the whole rental, that would be within the limit. Use your own readings and booking terms when checking the bill.

Check whether the invoice uses the same units and rate. If you changed cars, keep a separate start-and-end pair for each vehicle and ask how the allowance is applied across the exchange. A route-planning estimate can provide context, but it is less direct than the vehicle readings and may omit diversions or additional journeys.

Ask for the calculation if the mileage charge does not match

Send the rental agreement number, the invoice line and both dashboard photos. State your readings and units, then ask the company to confirm the readings, allowance and excess-mileage rate it used. Include any extension or exchange paperwork that affects the calculation. Keep the original files, the company's response and any corrected invoice until the query is resolved.