How to update your pet's microchip details (UK)

It's usually on your pet's vaccination record, their adoption or purchase paperwork, or a letter from the microchip database. If you can't find it, a vet, dog warden or rescue centre can scan your pet for it.

There are more than 20 government-approved microchip databases, including Petlog, Animal Tracker, Identibase and UK PETtrac. If you're not sure which one holds your pet's record, enter the chip number on the Check-a-Chip website, which GOV.UK links to.

Contact that database online or by phone, and update your address, phone number and email. Some databases charge a fee for changes. Only use a database on the GOV.UK approved list: in England, you can be fined up to £500 if your dog or cat isn't registered on one.

The microchip record should move into your name when you buy or adopt a pet. Ask the breeder, seller or rescue for the chip number and which database it's on, then ask the database to transfer the pet to you. Some databases need the previous keeper to start or confirm the transfer, so sort it out when you collect your pet.

If your pet goes to a new home, transfer the record to the new keeper. If your pet dies, let the database know, so the record is closed and nobody is contacted by mistake.

A microchip can only be read with a scanner, and changes can take a few days to go through. A PetTag profile updates the moment you save it, and anyone who finds your pet can scan the tag with their phone.