Work out which deal you're in
A private plate changes very little about the car itself. It changes much more about the paperwork and what you can check before you pay. So start with one question. What's happening to the plate?
There are three possible answers. The seller keeps the number, which means they must apply to DVLA to take it off before you buy. Or the plate is included, and you need proof the seller actually holds the right to it. Or you want your own number on the car, and there's a wait most buyers don't expect.
One fact applies to all three, and it comes from DVLA's INF104 leaflet. A registration number is given to the vehicle, not to the keeper. It stays with the car unless the registered keeper applies to take it off. Nothing moves without a DVLA application.
What the car will be called after the plate comes off
Take a private number off a car and it needs a registration to fall back on. Gov.uk says the vehicle's original registration number is usually reassigned to it automatically. For most cars, the number it wore before the private plate simply comes back.
That "usually" matters, though. Some cars were registered with the private number from new because a dealer can assign one before handover. Gov.uk doesn't say what number a car like that reverts to. So ask the seller what the car will be called, and expect the answer on paper.
The reverted number is what matters to you. Your insurance quote, your history check and the physical plates all need it. Don't guess it. Read it off the seller's new V5C before you commit to anything.
If the seller is keeping the plate
This is the usual arrangement. The seller applies to DVLA to take the number off, and the car goes back to a different registration. A replacement V5C follows, showing the old number.
Removal isn't automatic. The car itself has to qualify, and a non-runner, for example, can fail. Gov.uk doesn't say how a sale should handle a car that fails. Treat it as a plate that can't come off yet, and price in the delay.
If you're the party with a plate to protect, that's the other side of this deal. Our guide to keeping your private plate when you sell covers it.
Timing is the real trap here. DVLA says the replacement V5C can take 4 to 6 weeks to arrive. Don't complete the purchase while that change is still in progress. A seller pushing to finish mid-application is asking you to buy a car whose identity is still changing.
If the plate is included in the sale
A plate bolted to a car proves nothing about who holds the right to the number. INF104 is blunt about what buying a private number actually gets you. It's the right to apply to put the number on a vehicle. That right lives in DVLA's records, not on the bumper.
If the number is currently assigned to the car, INF104 says it stays with the vehicle when it's sold. "Included" then mostly means the seller agrees not to remove it before handover. Put that promise on the receipt, because nothing else holds them to it.
If the number is on a certificate instead, entitlement is a document. Gov.uk names two: a V750 certificate of entitlement, or a V778 retention document. To transfer it to you, the holder applies to DVLA using the certificate and your vehicle's details. A verbal "it comes with the car" is worth nothing here.
If you want to put your own plate on it
Assigning your number is free. Gov.uk says it's free to apply online or by post, so ignore anyone quoting you a DVLA fee for this step. DVLA's £80 is charged for taking a number off a vehicle, or built into the price if you buy the number from DVLA. Putting one on costs nothing.
The catch is the wait. For a used car you've just bought, gov.uk says to wait for DVLA to send the new V5C in your name before you apply. Gov.uk publishes no timescale for that log book, so the car keeps its reverted number until the post arrives, whatever a broker promises. Only a brand-new car skips the queue, because you can hand the dealer your V750 or V778 and ask them to apply.
Two rules can block the move entirely. You can't put a private number on a Q-registered vehicle, and you can't use a number that makes the car look newer than it is. Our guide to banned plates and DVLA's rules explains both, along with the numbers DVLA refuses outright. A historic vehicle needs a current MOT certificate too, even when it's normally exempt.
How to check a car that has worn two registrations
A history check follows the registration number, so a plate change breaks the trail. A car that has worn two numbers has a past filed under both. You're only standing in front of one of them.
Start with what the free services key on. Gov.uk's vehicle enquiry service asks for the registration number and returns tax status, MOT expiry, date of first registration and the last V5C issue date. It lists no previous registrations, and it won't give you keeper details. It answers for the number you type, not for the car's whole life.
The MOT history service also runs on the number plate. Its guidance doesn't say whether tests done under a previous registration will appear. So check the history while the car still wears the plate it was tested under, and save the results. Ask the seller for every number the car has carried, and for old MOT certificates that cover them.
Two anchors survive a plate change. The VIN, the vehicle identification number stamped on the car, doesn't move when the registration does, so match it against the V5C every time. And a plate change is lawful and common on its own. It only becomes a warning sign alongside other concerns, which our guide to number plate changes as red flags covers.
One quirk to expect in any report. Putting a private plate on a car triggers a fresh V5C, so the log book can look newer than the ownership it records. Our guide to reading a car history check explains what the V5C issue date does and doesn't mean.
What to get in writing before you pay
Whether the plate stays or goes isn't settled by any DVLA rule. It's whatever you and the seller agree, so the agreement has to exist on paper. If the advert was silent, the paperwork decides it. Silence decides nothing.
Before money moves, your receipt or invoice should record four things:
- the registration number the car will carry when it becomes yours
- if the seller keeps the plate: that they already have the V778 and the new V5C
- if the plate is included: which document proves entitlement, and who applies to DVLA
- every registration number the car has previously worn
Then tell your insurer which number the car now has, so your policy records match the plates. I'd get all four written down even in a friendly sale. None of it is difficult. All of it is easier before you've paid.
This piece is part of our guide to number plates.
Common questions about buying a car with a private plate
What number will the car have after the seller takes their plate off?
Usually the one it was first registered under. Gov.uk says the original registration number is usually reassigned automatically when a private number comes off. If the car started life on the private number, gov.uk doesn't say what it gets instead. Ask the seller and read the answer off the replacement V5C rather than taking it on trust.
Can I still check the car's MOT history after the registration changes?
The MOT history service runs on the number plate, and its guidance doesn't address registration changes. Don't rely on the old tests showing under the new number. Run the check before you buy, while the car still wears the tested plate, and keep a copy of the results.
Can the seller take the plate back after I've paid?
Gov.uk's removal route needs the vehicle's log book, and anyone applying for a car that isn't in their name has to do it by post. So once the V5C is in your name and in your hands, gov.uk describes no route by which the previous keeper could take the number off. The risky window is before that, while the log book is still theirs. That's why you wait for the plate to come off before completing.
Do I have to change the physical plates myself?
If the seller removed their number late, yes, the car needs plates showing its reverted number. Only a registered number plate supplier can make them, and they'll want original documents proving your name and address, plus your right to the number. The green new keeper slip is on DVLA's accepted list. Driving with wrongly displayed plates risks a fine of up to £1,000, and the car will fail its MOT. So sort the plates out before you drive it.