Most used-car horror stories were preventable with a search that costs nothing and takes five minutes. Before you hand over a deposit, or even book a viewing, run the car's registration through these six official checks. None of them need the seller's permission, and none of them cost a penny.

1. MOT history

Every pass, fail, advisory and recorded mileage since 2005, straight from DVSA. This is the single most revealing document on a used car: it shows whether mileage rises consistently, whether the same fault keeps reappearing, and whether there are gaps that need explaining. Full walkthrough in our MOT history guide.

2. Tax status and DVLA vehicle record

Is the car currently taxed, or has it been declared SORN? What colour, engine size and fuel type does DVLA have on file, and does that match what you're looking at? A mismatch on colour or engine size is a flag worth asking about directly. See our guides on checking tax and VED and reading the DVLA record.

3. Safety recalls

Manufacturers issue recalls when a fault is serious enough to be a safety risk, and the fix is free. The official checker is at gov.uk/check-vehicle-recall: enter the registration and it lists any open recall against that specific car. If one shows up, that's not necessarily a reason to walk away, but it is a repair the current owner should have already had done for nothing.

4. Insurance status

askMID.com is the public face of the Motor Insurance Database, run by the Motor Insurers' Bureau. It confirms whether a vehicle is currently showing as insured. It won't tell you who insures it or for how much, and it isn't a substitute for the seller's own paperwork, but an uninsured result on a car being sold as roadworthy is worth a direct question before you go any further.

5. Write-off and finance status (this one isn't free)

Here's where the checklist has to be honest with you. Whether a car has been recorded as an insurance write-off (Cat A, B, S or N) sits on a database called MIAFTR, and there's no free government portal for it: DVLA's own free vehicle checker doesn't include write-off category, and neither does any other no-cost official source. The same goes for outstanding finance. If the car is a meaningful purchase, a paid vehicle history check (the kind that pulls MIAFTR and finance data together) is the only reliable way to close this gap, and it's cheap relative to what buying a written-off or financed car could cost you.

6. The logbook (V5C) in front of you

None of the above replaces looking at the actual document. Check the V5C's issue date against what DVLA's own record shows, check the keeper's address matches where you're viewing the car (or ask why not), and check the serial number in the corner isn't from the well-known stolen-blank-logbook batches, which any quick search will confirm if you're unsure. A logbook that looks reprinted, laminated oddly, or that the seller is reluctant to show before a deposit, is a bigger red flag than anything a database will tell you.

Do the free checks first

Checks 1, 2, 3 and 4 above cost nothing and take a few minutes combined. Do all four before you arrange a viewing; there's no reason to spend an afternoon on a car that's showing as SORN with an expired MOT and an open safety recall.