What Is an HPI Check? What It Shows and When You Need One

Ask for used-car advice anywhere in the UK and "run an HPI check first" comes back within a sentence or two. It's sound advice, but not very helpful if nobody explains what the check actually is, who runs it, what it costs, and whether the free tools already cover the same ground. This guide does exactly that, in plain English.

Where the name comes from

HPI stands for Hire Purchase Information, the company that began recording vehicle finance agreements back in 1938 so the motor trade could avoid buying cars that still belonged to a lender. The brand became so dominant that "HPI check" drifted into everyday language, the way Hoover did for vacuum cleaners. Sellers still describe cars as "HPI clear" whichever provider actually produced the report.

Today the same style of report is sold under many names: HPI itself, Experian, the AA, the RAC and a long tail of budget brands. The underlying records come from the same handful of sources, so reputable providers return broadly the same answer about the same car. What varies is the price, how readable the report is, and the size of the data guarantee bundled in.

What an HPI-style check covers

A standard report pulls together five kinds of data, each from a different place:

Outstanding finance. Lenders record live hire purchase, PCP, conditional sale and logbook loan agreements against registrations. If finance is unsettled when you buy, the lender, not the seller, owns the car, and it can be repossessed from you even though you paid in good faith. This is the single biggest reason the paid check exists; our guide to outstanding finance on a used car covers what to do when a marker appears.

Write-off history. Insurers log every car they declare a total loss to a central register, along with the category. Cat S and Cat N cars can legally return to the road; Cat A and Cat B cars should never be offered for sale as runners. Our guide to write-off categories explains each letter and which ones to walk away from.

Stolen markers. A live query against the Police National Computer. Buy a stolen car, however innocently, and you have no legal title to it: the police recover it for the true owner and you lose the money.

Mileage cross-checks. Paid reports collect odometer readings from MOT tests plus finance, insurance and trade events, then flag any reading lower than an earlier one, the classic sign of clocking.

Identity and plate history. The car's recorded details, any previous registration plates it has worn, the number of previous keepers, import and export flags, and a VIN to compare against the metal. Frequent plate changes aren't automatically sinister, but they are a question to ask.

What it doesn't cover

An HPI-style check reads databases; it never looks at the car. It can't tell you whether the clutch is tired, when the cambelt was last changed, whether services happened on schedule, or whether the bodywork hides a cheap repair that never went through an insurer. A car can be completely "HPI clear" and still be a mechanical liability. We've written a full guide to what an HPI check does not cover. Read it before you treat any clear report as a green light.

Start with the free data

Before paying anyone, run the registration through our free car check. It returns the official DVLA record (tax status and due date, MOT status, make, model, colour, fuel, engine size, CO2 and the date the V5C was last issued) plus the complete DVSA MOT history: every pass, fail, defect and advisory, with the mileage readings plotted over time and any drop flagged automatically. The gov.uk MOT history service offers the same underlying test data.

Being straight about the limits: the free data cannot show outstanding finance, write-off categories, stolen markers, keeper counts, plate history or the VIN. Those records live in commercial and police databases, and reaching them is exactly what you pay a provider for. A free check that claims otherwise is describing the same DVLA data with more confident wording.

That said, the free layer filters out a surprising number of cars before you spend anything. An export marker, a SORN on a supposed daily driver, a mileage that fell between MOTs, a colour that doesn't match the advert, or a test history full of corrosion advisories are all reasons to move on without paying £20 to learn more.

What a paid check costs

Most single reports cost between £5 and £20. The famous names sit at the top of that range (you're partly paying for the brand and the guarantee headline), while newer providers sell substantially the same data for less. Multi-check bundles bring the per-car cost down usefully if you're actively comparing several cars.

Two things to understand about what you're buying. First, the report is a snapshot: it reflects the databases on the day it was run, so save the PDF and note the date. Second, the data guarantee, commonly advertised up to £10,000 or £30,000, compensates you if the report was wrong, not if it correctly reported something you ignored. The terms carry conditions, so skim them before relying on the number.

When you need one, and when you don't

You don't need a paid report to browse. While you're shortlisting, free data is enough to rule cars out. You do need one before you commit money to a specific car. A sensible sequence:

1. Take the registration from the advert.
2. Run the free check and read the MOT history properly.
3. If the car still looks right, pay for the full report.
4. Only then book the viewing, taking the report's questions with you.
5. Check the VIN on the car against the V5C and the report before handing over a penny.

The expensive mistake is doing this backwards: paying a deposit, then running the check, then discovering a finance marker and starting a refund fight. Buying from a franchised dealer lowers the risk, since reputable dealers check their stock, but markers can exist on dealer cars without the dealer knowing. On a private sale, the check is non-negotiable.

If it's your own car and you're just curious, the free data usually answers the question, unless you're about to sell, in which case a clear paid report can be a genuine selling point in the advert.

How to read the report

Most reports open with a traffic-light summary. You want unambiguous green on four things: finance, stolen, Cat A or Cat B write-off, and mileage. Ambers (an old Cat N repair, a plate change, an import) are not automatic deal-breakers; they're prompts to ask the seller direct questions and to price the car accordingly.

Two habits protect you from the common traps. Never accept a screenshot of the seller's own check: reports are cheap and screenshots are free, so run your own. And always confirm the registration and VIN on the report match the car in front of you and its V5C; a genuine report about a different vehicle is a classic distraction.

The bottom line

An HPI-style check is cheap insurance against the three problems that can cost you the whole car: repossession, a hidden Cat A or B write-off, and a stolen vehicle you must hand back. Use the free DVLA and DVSA data to filter your shortlist, then spend the £5–£20 on the car you're actually about to buy. For a line-by-line breakdown of exactly what the free and paid layers each show, see our full car check vs HPI check comparison.