Do I have to tell DVLA when I sell my car in Northern Ireland?

Yes. The registered keeper should notify DVLA of the sale or transfer so the vehicle record, tax liability and future correspondence are updated.

In relation to “Do I have to tell DVLA when I sell my car in Northern Ireland?”, for keeper, tax and SORN questions, use the official record rather than assuming a receipt or insurance cancellation updates DVLA automatically.

For “Do I have to tell DVLA when I sell my car in Northern Ireland?”, keep a dated receipt and evidence of the keeper change. The exact transfer time can be useful if parking, toll, tax or enforcement correspondence appears later.

For “Do I have to tell DVLA when I sell my car in Northern Ireland?”, this answer is written for a Northern Ireland user, but some vehicle-registration, consumer-credit and insurance functions operate on a UK-wide basis. The attached sources — GOV.UK - Selling a vehicle, GOV.UK - Tell DVLA you sold, transferred or bought a vehicle, and GOV.UK - SORN — are therefore deliberately mixed where the responsible authority is UK-wide. That is more accurate than forcing every point into an NI-only source.

Practical next step for “Do I have to tell DVLA when I sell my car in Northern Ireland?”: complete the relevant official keeper, tax or SORN action and save the confirmation with a dated receipt. If another person now has the vehicle, record the handover date and time as well.