Check a Car Before You Buy: What You Really Need to Know

By Matthew Croxford · 12 Sep 2026 · Updated 20 Oct 2026

Short answer: Start with a free check using just the number plate, covering MOT history, DVLA details, outstanding recalls and a valuation guide. If the car still looks promising, follow up with a paid vehicle check, using data provided by Experian, for finance, write-off, stolen, keeper, import and identity information before viewing or paying a deposit.

Buying a used car without checking it first is a bit like signing a contract without reading it. You might get away with it. You might not. The good news is that checking a car properly takes minutes, not hours, and a good chunk of it costs nothing at all. All you need is the number plate.

This guide walks through what a genuine car check should cover, what's free, what's worth paying a small amount for, and how to actually go about it before you commit to buying.

Why you should always check a car before handing over any money

A car can look immaculate on the drive and still be hiding problems that only show up on paper. Maybe it's failed its last three MOTs on the same fault. Maybe there's an outstanding recall the seller doesn't know about. Maybe there's still finance owing on it, which means the finance company technically has a claim on the car even after it's changed hands.

None of this is visible on a test drive. It only shows up when you check the vehicle's records, which is precisely why a proper check matters more than a shiny valet job.

What a free car check actually shows you

Enter a registration number into our reg lookup tool and you'll get four things, free: the car's full MOT history, its DVLA vehicle details, any outstanding safety recalls, and a free market valuation. Here's what each of those actually tells you.

MOT history: passes, failures and advisories

Every MOT test a car has sat since it became eligible for testing is on record, including the result, any advisories the tester noted, and the reasons behind any failures. A single advisory here or there is normal wear and tear. A pattern of the same advisory appearing test after test, never fixed, tells you the seller has been putting off a repair rather than dealing with it. That's a conversation worth having before you agree a price.

DVLA vehicle details

This confirms the basics against what the seller has told you: make, model, colour, engine size, fuel type and year of registration. It sounds obvious, but it's a quick way to catch a car whose paperwork doesn't quite match the car in front of you.

Outstanding safety recalls

Manufacturers issue safety recalls when a fault is found that affects how safe a car is to drive, and these get fixed free of charge at a dealer. The trouble is that recalls don't always follow the car when it's sold on, so a check will flag whether there's an outstanding recall that still needs sorting.

A free market valuation

You'll also get an indicative guide to what the car is worth in today's market. It's a rough steer based on typical figures for that make, model, age and spec, not a guaranteed price or a firm offer, and it will move around depending on condition, mileage and how the wider market is behaving at the time. Use it as a sense check on the asking price, not as gospel.

What a free check can't tell you, and how the paid history check fills the gap

A free check is genuinely useful, but it was never designed to tell you everything about a car's past. For that, there's our vehicle check, a more detailed report, with data provided by Experian, that digs into the car's background rather than just its test record.

Outstanding finance

If the previous owner is still paying off a loan secured against the car, that finance doesn't just disappear when they sell it privately. A history check will flag whether there's outstanding finance recorded against the vehicle, which matters enormously if you're buying privately rather than from a dealer.

Insurance write-offs and stolen markers

A car that's been written off after an accident can still be repaired and sold on, sometimes without the buyer ever being told. The same goes for stolen vehicles that resurface with new paperwork. Our check flags both, so you're not buying someone else's insurance claim or a police problem.

Previous keepers, imports, exports and scrapped status

How many people have owned the car, and how quickly it's changed hands, can say a lot about its history. The check also shows whether a car has been imported or exported, or whether it's officially been recorded as scrapped, which obviously shouldn't apply to anything you're about to buy.

Identity, VIN and plate or colour changes

Cloned cars and swapped identities are rarer than they used to be, but they still happen. The check verifies the VIN and flags any changes to the number plate or recorded colour, both of which can be a sign that something isn't quite as it seems.

How to check a car in practice

In reality, it's a short process:

Get the registration number from the seller, ideally by seeing the V5C logbook in person rather than just a photo of it.
Run the free check first through our reg lookup tool to see the MOT history, DVLA details, any recalls and a valuation guide.
If the car still looks like a serious prospect, run the paid vehicle check before you view it or at the very latest before you pay a deposit.
Match the VIN on the report against the VIN plate on the car itself, usually found under the bonnet or in the door sill.
Ask the seller about anything that doesn't add up, whether that's a recurring MOT advisory, a keeper change that's happened suspiciously fast, or a recall that hasn't been actioned.

None of this replaces a proper look round the car in daylight, ideally with someone who knows what they're looking at. But it does mean you're going into that viewing with the facts rather than just the seller's word.

Checking a car if you're planning to finance it

If you're looking to spread the cost rather than pay outright, it's worth checking the car thoroughly before you commit to any agreement, not after. A car with outstanding finance already on it, or one that turns out to be a write-off, is not what you want to discover once you've signed for a new agreement of your own. MotifyMe® can introduce you to an FCA-authorised credit broker if you'd like to explore your car finance options, though any agreement is subject to status and affordability, and nothing is guaranteed.

Final word

Checking a car properly costs you a few minutes and, for the free check, nothing at all. Given what's at stake, that's not much of a trade-off. Start with the free check, follow up with the paid history check if the car passes the first hurdle, and you'll buy with a lot more confidence than most people manage. For more on getting it right, our buying guides cover the rest of the process in detail.

Frequently asked questions

What does a free car check show? Entering a registration number into a reg lookup tool gives the car's full MOT history, DVLA vehicle details, any outstanding safety recalls, and a free market valuation.

Can a free car check show if there's outstanding finance on a car? No. Outstanding finance is flagged by the paid vehicle check, which uses data provided by Experian, rather than the free reg lookup tool.

Does a free car check reveal if a car has been written off or stolen? No. Insurance write-offs and stolen markers are flagged by the paid vehicle check, not the free check.

Where should I check the VIN against the report? Match the VIN on the report against the VIN plate on the car itself, usually found under the bonnet or in the door sill.