What do I need to do when selling a car in Northern Ireland?

Give the buyer the correct new-keeper documentation, tell DVLA about the sale, keep evidence of the transaction and do not hand over the vehicle until payment arrangements are secure.

In relation to “What do I need to do when selling a car in Northern Ireland?”, a clean paper trail matters after a vehicle leaves you because notices can arrive weeks later and depend on the exact transfer date.

For “What do I need to do when selling a 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 “What do I need to do when selling a 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 “What do I need to do when selling a 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.