1. Use the online 'tell DVLA you've sold a car' service
gov.uk/sold-bought-vehicle is free and instant. You need the V5C document reference number and the buyer's full name + address.
2. Give the buyer the green 'new keeper' slip (V5C/2)
This lets them tax and insure the car immediately. Never hand over the full V5C to a stranger.
3. Update insurance and tax
Cancel your insurance the day they collect. Road tax does not transfer in the UK — it is cancelled and refunded to you in full months.
4. Save the proof
Screenshot the DVLA confirmation. If you ever get a parking ticket or speeding fine after the sale, this is your only protection.
5. Use a digital portfolio for handover
A Carfolio-style portfolio bundles service history, MOT, invoices, and photos into one link the buyer (and DVLA) can verify in seconds.