Before you fall in love with a used car, take five minutes to look at its MOT history. It’s free, it’s quick, and it can tell you more about how a car has been treated than a seller ever will.
Here’s how an MOT history checker works, what the record means and the warning signs to look out for.
What is an MOT history checker?
An MOT history checker is an online tool that shows the results of every MOT test a car has had. In England, Scotland and Wales, the records go back to 2005. You just enter the registration number and you’ll see:
- The date and result of each test (pass or fail)
- The mileage recorded at each test
- Any defects that caused a failure
- Advisories, which are problems the tester noticed that weren’t bad enough to fail
- The test centre’s location, on some services
The official service is on GOV.UK. Cars registered in Northern Ireland use a separate service on nidirect.
When does a car need an MOT?
In Great Britain, most cars need their first MOT when they’re three years old, and then every year after that. In Northern Ireland, the first test is due at four years. That means a brand-new or nearly new car won’t have any MOT history yet, which is normal.
How to read an MOT record
Passes and fails
A fail isn’t automatically a bad sign. Lots of cars fail for small things like a blown bulb or a worn wiper blade, then pass after a quick fix. What matters is the pattern. A car that fails every year for serious problems, or keeps failing on the same item, may have been neglected.
Defect categories
Since May 2018, MOT problems are sorted into categories:
| Category | What it means | Result |
|---|---|---|
| Dangerous | A direct risk to road safety or the environment. The car shouldn’t be driven until it’s fixed. | Fail |
| Major | Could affect safety or the environment. Must be repaired. | Fail |
| Minor | No significant effect on safety, but should be repaired soon. | Pass |
| Advisory | Something that could become a problem in future. Keep an eye on it. | Pass |
Advisories
Advisories are gold dust for buyers. They tell you what the tester spotted that might need attention soon, such as tyres close to the legal limit, corroded brake pipes or a slight oil leak. If the same advisory appears year after year without being fixed, it suggests the owner only did the bare minimum.
Recorded mileage
Each test records the odometer reading. Look at how the mileage rises over time:
- Steady increases are what you want to see.
- A reading that goes down is a major warning sign of clocking. Read our guide on how to spot a clocked car.
- Big gaps or very low annual mileage aren’t necessarily bad, but ask the seller why.
Warning signs in an MOT history
- Corrosion advisories on structural parts like sills, subframes or suspension mounts
- Repeated failures for the same component
- Long gaps where the car wasn’t tested, which could mean it was off the road after an accident
- Mileage that drops or jumps oddly between tests
- A fail followed by a pass at a different test centre on the same day, which is worth asking about
What an MOT history check won’t show
An MOT record is a snapshot of the car’s condition on test day. It won’t tell you:
- Whether there’s outstanding finance on the car
- Whether it has been reported stolen
- Whether an insurer has written it off
- Whether the plates have been changed
For those, you need a full vehicle history check. A free check is a great start, as we explain in our guide to the free HPI check, but it isn’t the whole story.
Start with a free check on CheckHPI to see MOT and tax details. Then unlock the full HPI check to add finance, stolen, write-off and mileage records from £9.99.
Using MOT history to negotiate
Advisories aren’t just warnings. They’re bargaining tools. If the last MOT flagged two tyres close to the limit and front brake discs wearing thin, that could be a few hundred pounds of work. It’s perfectly reasonable to mention it and ask for money off.
The bottom line
An MOT history checker takes minutes and costs nothing, but it gives you a real insight into a car’s past. Read the advisories, check the mileage trend and look for patterns. Then, if the car still looks good, run a full HPI check before you buy.
Frequently asked questions
Is an MOT history check free?
Yes. You can check a car's MOT history for free on GOV.UK by entering its registration number. Many car check websites, including CheckHPI's free check, also show MOT details.
How far back does MOT history go?
For cars tested in England, Scotland and Wales, online MOT history goes back to 2005. Northern Ireland uses a separate service.
What is an MOT advisory?
An advisory is a problem the tester noticed that wasn't serious enough to fail the car, such as tyres nearing the legal limit or minor corrosion. It's a warning that work may be needed soon.
Can MOT history show if a car has been clocked?
It can help. Each MOT records the mileage, so a reading that goes down between tests is a strong warning sign. A full HPI check with a mileage check gives you more data points.
Does MOT history show accidents or write-offs?
No. MOT history doesn't show insurance write-offs. You need a full HPI check to see if a car has been recorded as Cat A, B, S or N.
