Every car over three years old sits an MOT once a year, and every result since 2005 is on file: passes, fails, advisories and the mileage on the clock that day. It's the closest thing a used car has to medical notes, and most buyers never read past the first line.
Pulling up the record
The basic record is free. The government's own MOT history service will show you pass/fail results, recorded mileages and the defects listed at each test; all you need is the registration. We'll say that plainly because plenty of sites charge for repackaging it and hope you don't notice. Our own free MOT check gives you the headline (current status, expiry date and the last result) without leaving this site.
What a paid check like ours adds is everything around the MOT record: the car's registered spec to compare against what you're looking at, colour and plate changes, import and export markers, tax position, and a verdict on whether the mileage trend holds together. The MOT history is one thread; the value is in seeing whether all the threads agree. If you just want the raw test results, though, the free service is right there and we'd rather you trusted us for the bits it can't do.
Reading it like a tester would
A pass certificate on its own tells you the car limped over the line one day last spring. The pattern across years tells you how it's been treated. Things worth a slow read:
The same advisory, year after year
An advisory is the tester saying "this passed, but it won't next time": brake discs wearing thin, a perishing tyre, corrosion starting on a spring. One advisory that's fixed by the next test is a car that gets looked after. The same corrosion advisory appearing in 2022, 2023 and 2024 is an owner who only spends money when something actually fails. Guess whose problem that becomes.
Fails that cluster
Almost every car fails an MOT eventually; a bulb or a wiper blade means nothing. What matters is what kind of fail. Suspension, brakes and structural corrosion are money; a pattern of them is a car that's fighting back. A fail followed by a pass the same day usually just means the garage fixed it on the spot; that's normal and fine.
The mileage column
Mileage is recorded at every test, which makes the MOT record the single best public defence against clocking. You're looking for a steady climb: roughly 7,000–8,000 miles a year is typical UK use. Two things should stop you cold: a reading that goes down, and a car that did 15,000 a year for five years then suddenly does 900. The first is a red flag with few innocent explanations; the second sometimes just means a retired owner, but it's a question to ask. Our reports flag falling readings automatically, and there's a whole guide on clocking if you want to go deeper.
Gaps
A missing year usually means the car was declared off the road (SORN'd), common for project cars, convertibles that hibernate, or somebody's third car. Fair enough. But a gap plus a jump in mileage means the car was tested somewhere you're not seeing (Northern Ireland records, for instance, only joined the mainland system in 2017), or driven without a valid MOT. Either way, ask.
What the record can't tell you
Honesty corner: the MOT record says nothing about accident damage repaired without an insurance claim, a slipping clutch, a gearbox that crunches into third, or the interior smelling of wet dog. A tester checks roadworthiness on the day, not quality. So use the history to build your list of questions, then go and see the car; our buying checklist covers what to do when you get there.
The five-minute version
- Look up the history before you travel anywhere. It's the cheapest filter there is.
- Read the advisories, not just the results. Repeated ones are deferred bills.
- Check the mileage climbs steadily. Down is bad; flat needs a story.
- Explain every gap. SORN is fine, "can't remember" isn't.
- Match what the record says against the car in front of you, and against the registered spec, which is where a full history check earns its fiver.