Car reg check.
The record behind the plate.

What a car reg check actually shows

A car reg check is the fastest identity and legal-status lookup in British motoring. One registration number is enough, because every fact below is held against the plate on official registers:

• Identity — make, model, colour, fuel type, engine size and year of manufacture, as recorded by the DVLA when the vehicle was registered.
• MOT status and history — whether the MOT is valid, the exact expiry date, and every pass, fail, mileage reading and advisory since computerised testing began in 2005.
• Tax position — taxed, untaxed or declared off the road on a SORN, with the date the current tax runs to.
• Key dates — month of first registration and the date the last V5C log book was issued, which quietly reveals when the keeper or plate last changed.

Two things no legitimate reg check can show you: the registered keeper’s name or address, and whether there is finance owing on the car. Keeper details are protected personal data, and finance, write-off and stolen markers live on separate industry databases — those belong to a full report, covered below.

The plate formats a car reg check has to handle

British plates carry more than a century of history, and a proper car reg check recognises all of it. The current format, used since September 2001, pairs two area letters and a two-number age identifier with three random letters. Before that came the prefix system (1983–2001), where the leading letter dated the car — A123 ABC and its successors. Before that, the suffix system (1963–1983) put the dating letter at the end: ABC 123A. Older still are dateless plates from before 1963, short combinations of letters and numbers that are now valuable cherished marks — and Northern Ireland registrations, which are also dateless in style and always contain the letter I or Z.

Two special cases are worth knowing. A Q plate is issued where a vehicle’s age or identity cannot be proven — kit cars and some radically rebuilt vehicles wear them, and a Q plate should always prompt extra questions about the car’s history. And a plate’s age identifier only tells you the age of the plate, not the car beneath it: a newer car can legally wear an older plate, but never one that makes it look younger than it is.

Private plates: the record follows the plate, not the car

Personalised registrations can be bought, sold, moved between vehicles and held on retention certificates. That has one consequence every checker should understand: a car reg check always reports the vehicle the plate is assigned to right now. When a private plate moves onto a different car, the DVLA record for that plate points at the new vehicle from the moment the transfer completes; when the plate comes off again, the car underneath normally returns to its original age-related registration.

One more situation catches people out: a cherished registration that is currently held on a retention document (form V778) or a certificate of entitlement (V750) is assigned to no vehicle at all. Run a check on it and you will get no vehicle record back — not because anything is wrong, but because the plate is in storage, waiting to be assigned. Sellers offering “the plate included” should be able to show you one of those documents, and the car itself will currently be wearing a different registration, which is the one to check.

This is why a check occasionally seems to describe the “wrong” car. Straight after a transfer, online records can take a short while to settle. It is also why sellers sometimes advertise a car with its cherished plate while intending to keep the plate itself — if the car you are buying wears a personal plate, agree in writing whether the plate is included in the sale, because once it is retained or transferred, the car will appear on a different registration entirely.

How to run a reg check before you buy

Used well, a sixty-second car reg check replaces a great deal of guesswork before you travel to view a car. Work through it in this order:

• Match the identity. The make, model, colour, fuel and engine size on the result must match the advert and, later, the physical car in every detail. A mismatch is never a small thing.
• Read the MOT length honestly. “Long MOT” in an advert can mean five months. The check gives the exact expiry date — treat anything under six months as a near-future cost.
• Follow the mileage line. Steady rises between tests are healthy. A fall, a long flat gap, or a jump that does not fit the car’s age all need an explanation.
• Check the tax position. Remember that tax does not transfer to you when you buy — you must tax the car yourself before driving it away, whatever the seller’s tax position was.
• Look at the last V5C date. A very recent log book can mean a recent keeper change. That is often innocent, but it is worth knowing before the seller tells you they have owned the car for years.

When a free reg check is not enough

A free reg check covers everything held on the public, official registers — identity, MOT and tax. What it cannot reach are the industry databases that record whether a car has outstanding finance, has been written off by an insurer, or is recorded stolen. Those checks cost money to licence, which is why they sit in the optional full report rather than the free result. For a cheap runabout the free check may be all you need; for any car representing serious money, the full report is the sensible final step after the free check has come back clean. Never buy a car that fails the free stage and hope the paid stage will somehow clear it.

Frequently asked questions