Read the timeline in date order
Mileage is recorded at individual tests. Begin with the earliest available reading and follow the change towards the most recent. The distance between points describes the records available, not every journey the car has made.
Compare the latest reading with the listing
The seller’s advertised mileage may be higher than the most recent MOT reading because the car has been used since the test. Look at both the date and the reading before asking the seller to explain a difference.
A decrease deserves an explanation
If a later comparable reading is lower, ask for evidence explaining the change. An entry error, different units or replacement equipment may be relevant. A decrease is not, by itself, proof of odometer tampering.
Check the units
Some test readings may be recorded in kilometres rather than miles. Those numbers cannot be compared directly. CheckThePlate converts kilometre readings to miles for the chart and keeps the original unit in the test details.
Do not confuse a gap with zero mileage
A missing test reading means there is no usable number at that point. It should not create a zero point on a mileage chart. Gaps can limit what can be concluded from a timeline.
Use more than one record
Service invoices and other maintenance records can add context to the MOT timeline. A steadily increasing set of readings does not independently certify the total mileage or rule out changes before the first available test.
Source: Government MOT history service. See also our data sources and limitations.