To sell a car privately in the UK, the essential document is the V5C vehicle registration certificate (logbook). You must complete the relevant section and pass the new keeper's slip to the buyer. Additional documents — MOT certificate, service history, and a written receipt — are not legally required but significantly affect buyer confidence and the price you can achieve.
The Essential Document: V5C Logbook
The V5C is the only document that is strictly required to complete a private vehicle sale in the UK. It records the registered keeper's details and must be updated when ownership changes.
When selling a vehicle, the process is as follows:
- Complete Section 6 of the V5C with the new keeper's details
- Tear off the green "new keeper's supplement" (V5C/2) and give it to the buyer — this is their temporary proof of ownership while they wait for their own V5C
- Send the remainder of the V5C to the DVLA to notify them of the change of keeper — this can also be done online
It is important to keep a record of the date of sale and the buyer's details. If a buyer uses the vehicle to commit an offence before the DVLA updates their records, the original keeper may receive correspondence — having a dated record of the transaction helps resolve this.
MOT Certificate
While not legally required to hand over at the point of sale, the current MOT certificate is an important document for any buyer. It confirms the vehicle was assessed as roadworthy at its last test and provides the certificate number for cross-referencing with the DVSA's records.
Selling a vehicle with a current MOT is significantly easier than selling one that has expired. If the MOT has lapsed, buyers will typically factor the cost of a test — and any required remedial work — into their offer.
Service History
A complete, documented service history is not a legal requirement for a private sale, but it is one of the strongest factors in supporting a higher asking price. Buyers use service history to assess how a vehicle has been maintained and to identify any recurring issues.
Service history should ideally include:
- A stamped service booklet or digital service record
- Original invoices from garages for all major work
- Receipts for significant parts replacements (tyres, brakes, battery)
- Any recall completion notices
Sellers who have maintained digital records of their vehicle's history are in a stronger position — they can share a complete, structured record with a prospective buyer before a viewing, which increases buyer confidence and reduces negotiation on price. Apps such as AutoLog allow sellers to share a vehicle's documented history — service records, costs, and scanned documents — directly with a buyer.
A Written Receipt
A written receipt is not a legal requirement but is strongly advisable for both parties. It provides evidence of the transaction in the event of any subsequent dispute, including claims about the vehicle's condition at the point of sale.
A receipt should include:
- Date of sale
- Full name and address of both buyer and seller
- Vehicle registration number, make, model, and VIN
- Agreed sale price
- Mileage at the time of sale
- A statement that the vehicle is sold as seen (if applicable)
- Signatures of both parties
Other Documents Worth Including
- Spare keys: Not a document, but the presence of all keys affects value and buyer confidence. Replacement keys for modern vehicles can be expensive.
- Handbook and owner's manual: Provides the buyer with manufacturer guidance on maintenance intervals and vehicle operation.
- Warranty documentation: If any remaining manufacturer or extended warranty applies to the vehicle, pass the documentation to the buyer.
- Finance settlement letter: If finance was outstanding and has been settled prior to sale, a settlement letter from the lender confirms the vehicle is clear of any financial encumbrance.
Notifying the DVLA
Notifying the DVLA promptly after a sale is important. Until the DVLA updates their records, the previous keeper remains the registered keeper on the national vehicle register. This has implications for road tax, enforcement notices, and any incidents involving the vehicle.
Notification can be completed online at gov.uk or by posting the completed V5C to the DVLA. Road tax cannot be transferred between keepers — the seller should claim a refund for any remaining months, and the buyer must tax the vehicle before driving it.
Key Takeaways
- The V5C is the only document legally required to complete a private car sale in the UK
- Complete the V5C correctly, give the green new keeper's slip to the buyer, and notify the DVLA promptly
- An MOT certificate, service history, and written receipt are not legally required but significantly support buyer confidence and sale price
- Keep a record of the date of sale and buyer's details until the DVLA confirms the keeper change
- Road tax cannot be transferred — the seller claims a refund and the buyer re-taxes before driving
- Digital service records and documents can be shared with buyers in advance to strengthen a private sale