Compulsory microchipping: what the law says in the UK for dogs

Microchipping is a quick procedure to insert a microchip under the skin of your pet’s neck. It causes no more discomfort to your pet than a routine vaccination . The chip is the size of a grain of rice and contains your contact details, so your pet can be reunited with you if they’re lost or stolen. It became compulsory for all dogs to be microchipped on April 6 2016. For cats, it's compulsory in England, with the date starting on June 10, 2024. You can learn about cat microchipping here. The law says that puppies must be microchipped before they’re eight weeks old, which means microchipping is the dog breeder’s responsibility. Under Lucy’s Law puppies shouldn’t be sold until they’re eight weeks old. We’ve put together a guide for pet owners, to tell you all you need to know about the Microchipping of Dogs Act (England) Regulations . What is the Microchipping of Dogs Act? The Act outlines the laws on microchipping dogs in the UK. It says all dogs must be implanted with a microchip loaded with information about them (breed, sex, colour etc) and their keepers’ details. Puppies must be microchipped and registered with a database by the time they’re eight weeks old. If an owner fails to microchip their pet they will be given 21 days to do so, after which they can face a fine. Is a microchip proof of ownership? No, the microchip contains information about the animal's ‘keeper’. Being the keeper means you are legally responsible for it and liable if it causes damage. In most cases the dog’s owner will also be their keeper and a microchip will to reunite you with your dog if they’re ever lost or stolen . Why is it the law to microchip dog? As far as the government’s concerned, the main purpose is to hold people accountable if their dog causes damage to a person, property or another animal and to reduce the number of stray dogs. But microchipping can also have huge benefits for you as the owner of keeper, to help reunite you with a lost pet quickly. Battersea Dogs Home’s 2021 annual microchipping report showed that 94% of accurately microchipped dogs were reunited with their owners and that the number of total stray dogs in five local authorities had dropped 66% between February 2016 and May 2021. Despite these statistics, a PDSA report found that in 2021 around one-in-10 dogs in the UK still aren’t microchipped. Failure to microchip is much higher in strays: 74% of stray dogs either had no microchip or did not have up to date details on their microchip that allowed the owner to be contacted according to Battersea. How microchipping affects pet insurance Some pet insurance policies are cheaper if your pet has a microchip because it means there is a better chance of finding them if they’re lost or stolen. That means an insurer is less likely to have to pay out for a lost pet, so the risk is a little lower. It’s important to make sure your details on the microchip are up to date and match the information on your insurance policy. If you adopt a rescue dog don't forget to check if they’re already chipped and to change it to your details. Dog insurance doesn’t cover the cost of getting a microchip fitted. What happens if my pet isn’t microchipped? If your dog is found to not be microchipped you‘ll’ get a notice that you must have them chipped. You will then have 21 days to microchip your dog. Failure to do this means you could face fines of up to £500. The same penalty applies for failing to update the detail on the dog’s microchip (in case you move or your contact details change). In 2021, 70% of stray dogs handed in to Battersea had a microchip but 44% weren’t up to date. As mentioned, owners found not to have microchipped their cat in England will have 21 days to have one implanted. If they fail to do that, then they’ll face a fine of up to £500. Fines and penalties aside, failing to microchip your pets means you’re much less likely to be reunited with them if they’re lost or stolen. How much does microchipping cost? Microchipping is a quick and simple procedure. We asked 66 vets in the UK how much they charge for microchipping in 2026, and we found the average cost was £35.24. Pet charities and events sometimes have free or cheap microchipping offers to encourage owners to chip their pets. As compulsory microchipping comes into action in England, you could check with your local authority and nearby cat charities to see if anything’s on offer in your local area. I have an older pet, is it exempt? There is no upper age limit on microchipping an older dog and microchipping won’t harm them. If your vet has confirmed that your pet has a health condition that prevents it from being implanted with a microchip an exemption can be made. If your dog had been implanted but develops an adverse reaction to the microchip it can also lead to an exemption. Mini microchips are available for smaller dogs. I’m a breeder, how do these regulations apply to me? Dog breeders must microchip all their puppies by the time they are eight weeks old. It then becomes the responsibility of the adopting keeper to update their details on the database. Always speak to your vet to find the best time to microchip them. I have a working dog, does it need to be microchipped? Yes, but the time limit for a puppy to be microchipped and registered to a database is 12 weeks, rather than 8. This only applies to dogs that have been certified as working dogs by a vet and had their tails docked in accordance with the Animal Welfare Act 2006.

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