How to keep puppy microchip records (so they actually work)

A chipped puppy whose chip was never registered is just a number under the skin.

When and what to record

Microchips usually go in around 6 to 8 weeks, before puppies leave, often at the vet visit for final checks. Record three things per puppy: the 15-digit chip number, the date implanted, and which registry it was enrolled with. The chip number alone is useless if nobody registered it.

The registration mistake almost everyone makes

Breeders chip the puppies but leave registration to the buyer, who then never does it. Either register the chips to yourself first and transfer on sale, or confirm in writing that the buyer completed registration. If a dog is ever lost and scanned, the registry calls whoever is on file. Make sure that chain has no gaps.

Keep two copies

Put a copy of every chip number with the puppy's go-home paperwork, and keep your own master list per litter. Chip numbers belong in the same per-litter folder as the whelping record, vet-visit log, and registration confirmations. When a buyer needs proof of anything six months later, one folder answers every question.

Prefer paper? The Breeder Records Pack has printable litter sheets, weight logs and checklists for $17.

Record-keeping guidance only; chipping age and registration requirements vary by country and registry. Check your local rules.