Before you spend money on a paid HPI check, you can do a surprising amount of free verification using just a car's registration number. Here are the free tools to use, in order.
1. MOT History — gov.uk/check-mot-history
This is the single most useful free check available. Type in the registration and you'll see:
- Every MOT result the car has ever had
- The mileage at every test
- Every advisory and minor failure noted
- Every major failure
- The dates of all tests
This tells you whether the mileage adds up, whether recurring problems have been flagged for years, and whether the car has been off-road for unexplained periods.
2. Tax & SORN Status — gov.uk/check-vehicle-tax
Confirms whether the car is currently taxed, when tax is due, and whether it's been declared off-road (SORN). Good for catching cars that have been laid up with problems.
3. Vehicle Recall Check — gov.uk/check-vehicle-recall
Some manufacturers issue recalls and not all of them are completed. Free tool, takes 30 seconds. Tells you if there are unfinished safety recalls outstanding on the car.
4. CO2 Emissions and Tax Band — gov.uk/calculate-vehicle-tax-rates
Tells you exactly what the annual road tax will cost — varies massively by vehicle, particularly older cars. Some pre-2017 vehicles are still in £30/year tax bands; others are £600+. Worth checking before you fall in love.
5. Insurance Quote (Free Indicative)
Run a Compare the Market or GoCompare quote with the registration before you commit. This catches insurance-group surprises that can derail a budget. Costs nothing, takes 5 minutes.
6. Visual Cross-Check on Listings
Reverse-image search the listing photos using Google Lens or TinEye. If the same photos appear on listings for different sellers in different cities, it's a scam. This is a free 30-second check that exposes a surprising number of fake listings.
What You Can't Find Out for Free
The free tools won't tell you:
- Whether the car has outstanding finance (HPI required, ~£20)
- Whether it's been declared an insurance write-off (Cat S, Cat N etc.)
- Whether it's been reported stolen
- The full ownership history
For these, you need a paid HPI check. We recommend doing this on any car worth more than £3,000, before you make a serious offer. A £20 HPI check that catches a £5,000 problem is the easiest money you'll ever save.
The Right Order to Do Your Checks
- Free MOT, tax and recall checks (5 minutes total) — eliminate obvious problems before you waste a trip
- Insurance quote — catch insurance-group surprises early
- Listing photo reverse search — catch scams
- If still interested, viewing in person
- If still serious, paid HPI check before offering
- Final negotiation and deal
The Bottom Line
Five minutes on gov.uk before you view a car can save you a wasted trip and identify red flags early. Don't skip these free checks just because they're not mandatory — they're some of the most valuable in the entire car-buying process.