A used car can look perfect and still hide a serious problem — outstanding finance, a salvage history, or an owner who isn't actually allowed to sell it. Paperwork is where most of that gets caught. Before you agree on a price, take time to see and verify every document below. A genuine seller will not mind the scrutiny; a seller who gets impatient or evasive about paperwork is telling you something important.
Proof of Identity and Ownership
Ask the seller for photo ID and confirm the name matches the name on the vehicle's registration document. If the car is being sold by someone other than the registered owner — a relative, a friend, a dealer acting for a private party — ask why, and get a clear explanation in writing if possible.
- Check that the address on the ID and registration are consistent, or ask about the difference.
- Be cautious if the seller wants to meet somewhere other than their home or a public, verifiable location.
- If a company is selling the car, ask for basic proof the business actually exists.
The Vehicle Registration Document
This document should show the current registered keeper, the vehicle identification number (VIN), make, model, and year. Compare every detail against the actual car:
- Does the VIN on the document match the VIN stamped on the vehicle and shown on the dashboard or door frame?
- Do the number plates match the registration?
- Is the registration document free of obvious alterations, mismatched fonts, or signs of tampering?
If the registration document looks new, reissued, or oddly clean for an older car, ask why. A legitimate replacement (lost document, house move) is common and fine — but the seller should be able to explain it clearly.
Service History and Maintenance Records
A genuine service history — stamps, invoices, workshop receipts — tells you far more than a seller's word. Look for:
- Consistent mileage entries that rise steadily over time with no unexplained jumps or drops.
- Dates and mileages that match the car's age and typical use.
- Real invoices from identifiable garages, not just a blank stamped book.
Gaps in service history aren't automatically disqualifying, especially on older or cheaper cars, but they shift more weight onto an independent inspection before you buy.
MOT, Roadworthiness, or Inspection Certificates
Most countries require a periodic roadworthiness test. Ask to see the current certificate and, if possible, the full history of past results through the official vehicle registry or equivalent government lookup — not just what the seller hands you. This history often records mileage at each test, which is one of the best ways to spot odometer fraud independently of the seller's own paperwork.
Proof There Is No Outstanding Finance
Many used cars are still being paid off on a loan when they're sold. If finance is outstanding and not settled, the car can technically still belong to the lender, which creates real risk for a buyer. Ask the seller directly whether the car has any finance owing, and use this service's plate lookup or a dedicated finance-check tool to verify the answer independently before you pay anything.
Insurance Write-Off and Accident History
Ask whether the car has ever been declared a total loss or salvage vehicle by an insurer, and check independently through a vehicle history lookup where available. A car that was seriously damaged and rebuilt can be sold on perfectly legally in many places, but you need to know about it — it affects safety, future insurability, and resale value.
Number of Previous Owners and Mileage Consistency
The registration history should show how many keepers the car has had and roughly when ownership changed. Cross-check this against the service history and MOT/inspection records. If the number of owners feels high for the car's age, or mileage doesn't line up cleanly across documents, ask the seller to explain before you go further.
A Written Bill of Sale or Purchase Contract
Never rely on a handshake and cash. Insist on a written contract or bill of sale that includes:
- Full names and addresses of buyer and seller
- Vehicle details (make, model, VIN, registration number, mileage at sale)
- Agreed price and payment method
- Date of sale and signatures of both parties
- A statement of the car's condition and any known faults disclosed by the seller
This protects both sides and gives you a clear record if a dispute or fraud ever needs to be reported.
Before You Sign Anything
Bring the checklist with you, take your time, and don't let a seller rush you past any of these steps:
- ID and ownership match the registration document
- VIN matches across the car, registration, and any inspection certificates
- Service history is consistent and mileage rises logically
- Current and past roadworthiness certificates check out through official records
- No outstanding finance, verified independently
- No undisclosed write-off or major accident history
- Written contract signed by both parties
None of these checks take long, and together they remove most of the risk from buying privately. If a seller resists any single one of them, treat that as your clearest warning sign of all.