There is no single UK database that ranks cabs by highest mileage. What you can do is check any ex-taxi's mileage history by its registration number, using the odometer readings recorded at each MOT test. Those readings show how quickly the miles built up and whether the figures ever dropped. A vehicle check on motorpeek.com can bring that history together, along with other checks, before you commit to a former cab.
We are an independent site, not a government body. The MOT data we refer to comes from DVSA records via DVLA and government sources.
Why ex-cabs often have very high mileage
Taxis and private hire cars cover far more miles than the average family car. A busy cab can easily add 40,000 to 80,000 miles a year, so a car only a few years old may already show six figures on the clock. London-style black cabs and popular hybrid saloons are often sold on with 200,000 miles or more.
High mileage is not automatically a dealbreaker. Some ex-taxis are mechanically sound because they were serviced on a strict schedule. But the miles are usually motorway or stop-start city miles, so you should look closely at the evidence.
How to check a cab's mileage history
- Use the MOT history. Every MOT records the odometer reading. Taxis are typically tested annually from the first year, so a cab often has a long and detailed trail of readings.
- Look at the pattern. Large annual jumps (for example 50,000 miles a year) suggest heavy commercial use. A sudden drop or a reading that goes backwards is a red flag for clocking or a mistyped figure.
- Compare with the dashboard. The current mileage should be higher than the last MOT reading, and the gap should make sense for the date.
- Check the service history. Stamps or invoices with mileage should line up with the MOT readings.
- Look at the previous keeper count. Several keepers in a short period may mean a car passed through fleets or dealers.
Spotting a clocked cab
Clocking means winding back the odometer to make a car look less used. High-mileage ex-taxis are a tempting target because the price difference between a 250,000-mile car and a 120,000-mile car can be large.
Warning signs include a mileage lower than an earlier MOT reading, worn pedals, a sagging driver's seat or a shiny steering wheel that do not match the stated mileage, and missing service records. Gaps between MOT tests can also hide mileage changes, so a missing year is worth asking about.
Other checks worth doing on an ex-taxi
Mileage is only part of the picture. For a former cab you should also look at:
- Insurance write-off status. The MIAFTR register records vehicles written off by insurers as Cat A, B, S or N. A busy cab is more likely to have been in an accident.
- Outstanding finance. Many cabs are bought on finance. If a loan is still secured on the car, it could be repossessed even after you pay the seller.
- Stolen marker. The Police National Computer (PNC) can show if a vehicle is reported stolen.
- Plate and colour changes. A former taxi may have been re-registered, repainted or had its livery removed. Check that the details on the V5C logbook match the car.
- Previous use. Ask the seller directly whether it was a taxi or private hire car. Not every record will clearly show this, so do not rely on one source.
Is a high-mileage cab worth buying?
It can be, if the price reflects the mileage and the paperwork backs up the story. Consider these points:
- Ask for the full service history and any council plating or inspection records.
- Check for wear on the gearbox, clutch, suspension and brakes, which take a lot of punishment in taxi work.
- Have an independent mechanic inspect it, and look at any advisories on past MOTs, particularly for corrosion or worn parts.
- Negotiate based on the true condition, not just the headline mileage.
No check can guarantee a car's condition, so use the data alongside a physical inspection and a test drive.
Before you buy
Enter the registration into the checker on motorpeek.com to see the MOT mileage trail and other history, then compare it with what the seller tells you. If the numbers do not add up, you can walk away before spending any money.
Frequently asked questions
Is there a way to find the highest mileage cab in the UK?
There is no official list or database that ranks cabs by mileage. You can only check individual vehicles through their MOT odometer history by registration. Some ex-taxis have been reported with 300,000 miles or more, but these are individual cases, not records you can search.
Can I check if a car was used as a taxi?
Not always reliably. The MOT history shows mileage patterns that hint at heavy use, and the V5C logbook or seller may confirm previous use. Councils license taxis separately, so a vehicle check may not show it, and you should ask the seller directly.
What is a good mileage for a used ex-taxi?
There is no fixed figure, as condition and servicing matter more than the number alone. Many ex-cabs sell with 150,000 to 250,000 miles. Look for consistent MOT readings, a full service history and a price that reflects the heavy use.