Microchipping Dogs and Cats: Everything You Need to Know

Microchipping is the most effective way to permanently identify your pet and reunite you if they ever get lost.

How Microchipping Works

A tiny chip (about the size of a grain of rice) is implanted under the skin between the shoulder blades. Each chip has a unique 15-digit ISO number linked to your contact details in a national database.

Is It Compulsory?

• UK: Compulsory for dogs since 2016. Compulsory for cats from 2024.
• EU: Compulsory for dogs in most member states. Requirements vary by country.

Does It Hurt?

The procedure is similar to a vaccination injection. Most pets show minimal reaction. Can be done at any vet visit, often during vaccinations.

Keeping Details Up to Date

A microchip is only as useful as the contact details linked to it. Update your details whenever you move or change phone number. Outdated microchip details are one of the most common reasons reunification fails.

Microchipping vs GPS Collar

GPS collars track location in real time — microchips do not. Both are useful for different purposes. Microchips are permanent; GPS collars require charging and may fall off.