The NCP Form, Explained
NCP stands for “Notification of Change of Particulars.” It’s for updating your own details as the registered owner or title holder — your address or contact information — not for a change of ownership. If you’ve bought or sold the vehicle, you need the RLV/NCO forms instead.
When you need it, and the actual deadline
Regulation 52 gives you 21 days from the date your details change to notify your local licensing authority on the NCP form. This most often comes up after moving house. There’s no publicly specified fine for missing this deadline, but leaving your details out of date means official correspondence, renewal notices, and any dispute over fines or liability could go to the wrong address — worth fixing sooner rather than later.
Common reasons it gets rejected or delayed
Proof of your new address that's too old, or not in your name
It needs to be less than 3 months old. If the account isn’t in your own name, bring an affidavit plus a copy of the account holder’s ID as well.
An ID copy that no longer matches your current details
For example, an old green ID book copy after you’ve since switched to a smart ID card. Bring your current one.
Using NCP to try to record a change of ownership
Wrong form — if the vehicle has actually been bought or sold, you need the RLV and NCO forms instead. See our NCO guide.
Update your details correctly
RoadForms fills in your NCP form on the real government template, ready to sign.
From R49
Common questions
What's the difference between NCP and NCO?
NCP updates your own details as the existing owner, like a new address. NCO notifies a change of ownership after a sale. See our NCO guide if you've sold the vehicle.
How soon do I have to submit an NCP after I move?
Within 21 days of the change, under Regulation 52 of the National Road Traffic Regulations.
Can I submit an NCP on behalf of someone else?
Yes, with their signed authorisation and a certified copy of your own ID — see our Supporting Documents Checklist for exactly what to bring.