7 steps for updating your cat's microchip details

Making sure your cat's microchip details are up-to-date gives you the best chance of being reunited with them if they are lost or stolen.

Cat microchipping is all about making sure there are happy endings to situations like this one: a couple is putting up missing posters for their cat.

Overview

Every week, our vets treat scores of cats who have gone missing from home or been injured in accidents, many with out-of-date microchip information. This situation is often heartbreaking, and can lead to cats being placed in rescue centres. A cat with outdated microchip information can be just as difficult to reunite with their owner as an unchipped cat.

Have you checked if your cat's microchip details are current? Maybe you've changed your phone number or moved house? Here’s a step-by-step guide to updating them.

1. Find your cat’s microchip number

3. Contact databases

5. Pay any necessary fees

7. Inform your previous vet

How to find a lost cat

Medically reviewed by Iain Harrison

Published on 10/06/2025 • Reviewed on 10/06/2025