Paperwork is not bureaucracy for its own sake. Each document a breeder hands over either proves something about the puppy, protects you if a claim turns out to be wrong, or tells the next professional who handles your dog what has already been done. A breeder who is organised on paper is usually organised everywhere else too.
The contract or receipt of sale
This is the anchor document. It should identify the breeder, you, and the individual puppy clearly enough that there is no doubt which dog the sale covers, state the price and date, and set out any conditions: breeding restrictions if they were agreed, what happens if you cannot keep the dog, and any health guarantee the breeder offers and its limits. Read it before collection day, not with a puppy already in your arms, and ask about anything you would not accept. A breeder who takes puppies back at any age rather than see them rehomed casually will usually say so right here, and that clause is one of the most reassuring lines in the whole folder.
Registration, ancestry and parent health results
If the litter was advertised as registered or purebred, the registration documents or the paperwork to complete the transfer should be part of the handover, along with a family-tree document showing the puppy's parentage. Separately, and more important for the dog's future, ask for copies of the parents' health test results for every test the breeder mentioned: hip or elbow scores, eye certificates, genetic test results relevant to the breed. Verbal assurance that the parents were tested is not the same as results with names and dates on them. If a claimed test has no document, treat the claim as unproven and factor that into your decision before money changes hands, not after.
The puppy's own veterinary record
This should show the puppy's health examinations, the vaccinations actually given with their dates, and the parasite treatments administered and when the next ones fall due. It matters practically: your own vet will build the puppy's ongoing schedule from these dates, and duplicated or missed vaccinations usually trace back to a vague handover. If the breeder says the litter was vet-checked, the record or a letter from the practice should confirm it and note anything found, however minor. Microchip details belong in this same bundle: the chip number, the paperwork or instructions for transferring the registration into your name and contact details, which you should complete immediately, since a chip still registered to the breeder cannot reunite you with a lost puppy.
Feeding notes and the first-days routine
Good breeders also send the puppy out with written notes: what food it is eating, how much and how often, what it has been weaned onto, and the daily rhythm it knows for sleeping, toileting and handling. A small supply of the current food often comes too, so the diet can continue or change gradually rather than overnight. These notes look humble next to certificates, but they are what get you through the first week without digestive upsets and midnight guesswork. Keep them with the rest of the folder rather than on a scrap in a kitchen drawer.
What to do if something is missing
Ask before collection day for anything on this list the breeder has not mentioned, and give them the chance to produce it; paperwork sometimes lives at the vet practice or registry and simply needs requesting. What should concern you is refusal or vagueness: no contract, no vet record, no evidence for claimed health tests. Those gaps are information about how the litter was raised and recorded, and walking away is a legitimate response. For the folder you do receive, file it whole in KinsLe's Pet Passport so vaccination dates, chip details and health results travel together to every vet visit, boarding stay and handover from the very start.