Cheapest Mileage Check UK 2026: How to Spot Clocking for Free

Key takeaway: A proper mileage check is free. CarCostCheck's free report analyses every MOT mileage reading since 2005 and automatically flags any inconsistencies that suggest clocking. You do not need to pay for a dedicated mileage check from any provider.

What Mileage Fraud Actually Looks Like

Clocking means rolling back or tampering with an odometer to make a car appear to have done fewer miles than it actually has. HPI estimates that around 1 in 16 used cars in the UK has been clocked. The typical uplift on sale value is £3,000-£5,000, which is why it remains one of the most common forms of UK used car fraud even though it is illegal under the Fraud Act 2006.

Modern digital odometers are easy to reset with cheap tools. Spotting it by eye is hard. That is why the only reliable check is against the MOT history.

How the Check Works

Every time a car has an MOT, the tester records the mileage. That reading goes into the DVSA database. By pulling every MOT reading in sequence, you can see whether the mileage has always gone up, and by how much each year. A clocked car shows up in one of three ways:

1. Sudden drop. 50,000 miles in 2023, 30,000 miles in 2024. Impossible unless the dashboard was replaced.
2. Impossibly small yearly increment. 80,000 miles one year, 82,000 the next, 84,000 the next, on a commuter-spec car. Average UK mileage is 7,000-8,000 per year; 2,000 per year is suspiciously low and can indicate a rollback was abandoned part way.
3. Large unexplained jump then stop. Big jump one year, then suspiciously static. Usually means the car's actual usage was disguised then frozen on paper.

CarCostCheck's free report runs these checks automatically on every car you look up. If any of the three patterns appears, you get a red flag in the report.

Any service charging more than £0 for a mileage check alone is overpriced. The data is in the DVSA database and the analysis is trivial. CarCostCheck does it for free.

What to Do If the Check Flags Clocking

1. Do not buy the car. Mileage fraud is almost always a sign of a deeper problem. If the seller clocked it, they probably clocked it to hide hard use, neglect, or ex-taxi/private-hire status.
2. Report the seller. Clocking is illegal. If they are a dealer, report to Trading Standards. If private, you may be able to pursue a civil fraud claim.
3. Check similar listings. Serial clockers often have multiple cars for sale. A pattern is grounds to escalate.

Frequently Asked Questions

Is checking a car's mileage really free?

Yes. CarCostCheck's free report does it automatically. No sign-up.

Can the DVSA miss clocked miles?

If the clocking happens between MOT tests, DVSA will only see the new (lower) reading at the next test. The key is looking at the whole mileage history together, which is exactly what CarCostCheck does.

Is mileage fraud still a problem in 2026?

Yes. Despite digital odometers and tighter regulation, clocking is still estimated to affect around 1 in 16 used cars. Always run the check.

Related reading: How to Spot a Clocked Car UK | Cheapest MOT Check UK | Cheapest HPI Check UK