A private purchase has no dealer warranty behind it, so the protection has to be built by the buyer: time with the horse, a vet who answers to you, and terms on paper before money moves. Watch the seller ride first — catching, tacking up and all — then ride the horse yourself more than once, in the school and out hacking, in company and alone if that matters to you, and ask directly about vices, injuries, behaviour and reasons for sale, recording the answers in writing. Confirm the passport matches the horse in front of you, arrange a pre-purchase veterinary examination suited to the work you plan, and walk away if the seller rushes you or refuses reasonable trial access.
Put the Trial in Writing
Agree the trial terms before the horse leaves its current yard, and write them down: how long the trial runs, who pays for feed, bedding, insurance and any vet call during it, what happens if the horse is injured, and the exact conditions for returning it. A deposit held against a signed agreement protects both sides, and a seller who is happy to put ordinary terms on paper is telling you something useful. Keep the advert, the messages and the seller's answers about vices, injuries and reasons for sale — a private sale has no comeback built in, so your paperwork is the protection.
Vet Independently, and Ride More Than Once
Book the pre-purchase examination with a vet of your choosing, not the seller's, and match its depth to the work you plan: a horse bought for hacking asks different questions of its legs, wind and eyes than one bought to jump. Ride the horse yourself at least twice, on different days if the seller agrees — once in the school and once out hacking, in company and alone if that is how you will keep it. See it caught from the field, tacked up and handled by someone other than its owner, because a horse only ever presented ready-ridden is hiding its everyday manners, good or bad.
When the Horse Comes Home
Expect the first fortnight to show you a quieter or sharper version of the horse you tried, as routines, grazing companions and workload all change at once. Keep feed and turnout close to what the horse is used to, change one thing at a time, and judge the match after the settling period rather than on day two. At handover, that paperwork can travel with the horse instead of trailing behind it: the seller can hand the profile over in KinsLe through Transferrable Profiles, and the buyer starts from the horse's real history rather than a bundle of loose sheets.