What do I put in V55/5 box 73 mileage?
Reviewed 2026-07-10
Short answer
Give the current mileage shown at the time the vehicle is registered. V355/5 specifies miles, not kilometres.
Official position
The V355/5 guidance says box 73 is mileage details and to give the current mileage displayed on the speedometer at the time the vehicle is registered. It labels the field as miles, not kilometres, and says accurate mileage is important to apply the correct rate of vehicle tax.
What to do
Read the current odometer value when preparing the application.
If the vehicle records distance in kilometres, do not silently put a km value into a miles field.
Keep MOT and import evidence consistent with the odometer units and any conversion explanation.
Do not estimate or round heavily, because the guidance says accurate mileage matters for tax.
Common mistakes
- Entering kilometres in a miles field without explanation.
- Using the mileage from an old auction sheet instead of the current odometer.
- Confusing mileage with engine capacity, CO2 or tax band fields.
Related help
Official sources
Use the relevant tool
MOT history check
Apply this answer to your vehicle, then carry the result into your free registration route.