The MOT record is the most useful free thing a used car buyer can read, and almost nobody reads it properly. It is a dated series of test results with the odometer reading captured at each one, published by the DVSA for any registration, and it is the reason a clocked car is usually caught for nothing rather than for the price of a history report. Knowing how to read it is worth more than knowing which vendor to buy from.
Check vehicle MOT history: what the free record returns
For cars, motorcycles and vans the DVSA service returns test results from 2005 onward: pass or fail, the date, the recorded mileage, the advisory notes and the specific items that failed. Tests carried out in England, Scotland and Wales also show where the test was done, which needs the 11 digit number from the log book. Northern Ireland results begin in 2017 and are held by the DVA rather than the DVSA, so a car with an Ulster history shows a shorter series through the same service.
Read the mileage column before you read anything else
Line up the readings by date. A genuine car climbs steadily; a clocked one has a year where the number falls, or where a large jump is followed by a suspiciously flat period. A single dropped digit is usually a typing error at the test station and is worth a question rather than a walk away. A sustained reversal, or a car whose last three tests are all close to the same figure while the seller describes daily commuting, is the one fact on a free government page that saves thousands.
Advisories are the maintenance story nobody tells you
A pass with advisories is still a pass, and the advisory text is where the tester writes what is wearing out. Corrosion noted three years running that never becomes a failure means somebody has been keeping on top of it, or that it has been patched. Brake discs advised, then advised again, then not mentioned, means they were replaced. Read the advisories as a sequence rather than a snapshot and you can usually tell whether the car has been maintained or merely presented for test.
What the free record does not carry
It carries no write-off marker, no outstanding finance, no theft record, no keeper count and no import flag, because none of those is a test result. It also stops at the first test, so a car under three years old has no history at all and the mileage check is unavailable exactly where a low-mileage claim is easiest to make. Those gaps are what the paid providers sell, and what each of them charges for the same underlying feeds is worth comparing before you buy.
Questions people ask about mot history checker
How far back does the free MOT history go?
To 2005 for cars, motorcycles and vans, to 2018 for lorries, trailers, buses and coaches, and to 2017 for tests carried out in Northern Ireland. There is no paid product that extends the series further back.
Do I need the log book to check MOT history of a car?
No. The number plate alone returns the results, the dates, the mileages and the advisories. The 11 digit log book number is only needed to see which test centre carried out each test.
Does a gap in the MOT record mean something is wrong?
Not necessarily. A gap usually means the vehicle was declared off road, was abroad, or was tested late. The question to ask the seller is what the car was doing, not whether the gap itself is a fault.
Can the MOT history show a recall?
Sometimes. The service flags outstanding safety recalls for some manufacturers, but coverage is not complete, so it is worth running the separate vehicle recall check as well.