Updated May 2026

What is the cheapest way to check a used car in the UK?

The cheapest way to check a used car in the UK is to start with MOT Checkup's free MOT history check, layer on free DVLA tax and stolen-vehicle data, and only pay for a full HPI-style report when the purchase price makes outstanding finance or write-off history a real risk. The free layer alone catches most rough cars.

TL;DR

Free first, paid only if needed. Order of operations: MOT history → tax/SORN status → stolen check → known faults for that model → paid HPI-style report for cars over a few thousand pounds. Start with the free MOT check here.

Run a free MOT check now:

Step 1 — MOT history (free)

The single highest-value free check. Enter the reg into our free MOT check and you'll see the full DVSA test history: pass/fail, mileage at every test, dangerous defects, and advisories. Three things to look for:

Mileage continuity. A clocked car gives itself away here. Mileage going backwards or implausible jumps are unmistakable.
Recurring failures. Same component failing year after year suggests a deferred-maintenance approach.
Dangerous defects. Even one is a big flag — was it actually fixed?

Step 2 — Tax, SORN and basic DVLA data (free)

The DVLA exposes current tax status, SORN status, basic vehicle details (colour, fuel, engine size, year of manufacture, CO2 band) for free. Use our tax check or the joined MOT and tax check. Watch for:

Colour mismatches between DVLA record and what you're seeing.
Long SORN periods that don't match the seller's story.
Engine size or fuel mismatches — sometimes a sign of cloned plates.

Step 3 — Stolen-vehicle check (free)

Some stolen-vehicle markers are publicly accessible via the DVLA and partner sources. Our stolen check surfaces what's available without payment. It isn't as comprehensive as a paid police-database lookup, but it's a useful first pass. For a deep stolen-history dive, see our blog post how to check if a car is stolen.

Step 4 — Model-specific weak points (free)

Before agreeing a price, check our common faults pages for the model. Knowing that a particular generation is prone to, say, DPF failures or rear subframe corrosion lets you ask the right test-drive questions and price the risk in.

Step 5 — Paid HPI-style report (only if it's worth it)

Pay for a full history report when:

The car costs more than a few thousand pounds, where outstanding finance or undisclosed write-off categories could swallow your entire purchase.
You're buying privately, where there's no dealer to chase if something is wrong.
The MOT history has gaps you can't explain — finance and insurance write-off data may fill the picture.

We compare paid checks honestly in MOT vs HPI check and is an HPI check worth it.

The order matters

Most rough used cars get filtered out at step 1. Run the free MOT check before you waste a Saturday on a viewing. If a car's history reads badly, you've saved yourself the petrol — and haven't spent a penny.

Frequently asked questions

What's actually free?

MOT history (DVSA), current tax and SORN status (DVLA), basic vehicle details such as colour, fuel and engine size (DVLA), and stolen-vehicle status when published (police forces / DVLA partners). All of these can be obtained without payment from a registration number alone.

What's worth paying for?

Outstanding finance, insurance write-off categories (Cat A/B/S/N), full keeper history, plate transfer history, and salvage data. These come from licensed sources — finance houses, insurance bureaux, salvage networks — and can't legally be redistributed for free.

How much should a paid check cost?

A single-vehicle full HPI-style report typically sits between GBP 5 and GBP 20 depending on provider and bundle. Multi-pack credits bring the per-check price down. Anything significantly above GBP 20 for one report is overpriced unless it's bundled with a guarantee or insurance product.

Should I trust a dealer's HPI check?

Reputable dealers do run history checks and will share the result on request. But the report is only as recent as the day it was run — finance can be added between the dealer's check and your purchase. Running your own check on the day you buy is cheap insurance.

Is there a free HPI alternative?

Genuine outstanding-finance and write-off data are not free anywhere — the data licences cost real money. If you're seeing a 'free HPI check' offered online, it's almost always a marketing funnel that takes your details and then upsells the actual report. Free MOT history, yes; free finance check, no.

Should I buy a used car that has no MOT?

Only with eyes open. A car sold without a current MOT is legally untestable on the road — the seller cannot drive it home for you, and you cannot tax or insure it normally. The price should reflect at least the £54.85 test fee plus likely repair cost. Use the MOT history to estimate what work is due, and budget for surprise failures. Walk away if the seller is hiding why it has no MOT.

How do I check for Cat S or Cat N write-off cheaply?

Write-off categorisation (Cat A, B, S, N) is held by the Motor Insurance Anti-Fraud and Theft Register (MIAFTR), a paid data source. There's no free way to access it directly. The cheapest approach is one of the bundled paid checks (£5–£20 — see /vs/motcheckup-vs-hpi for which providers include MIAFTR data). Free MOT history alone won't tell you if a car was written off.