Dog Microchipping Law Across the UK
Wherever you live in the UK, your dog almost certainly needs a chip. See how each nation's rules differ, from extra duties in Scotland to licensing in Northern Ireland.
The rules for microchipping a dog depend on which part of the UK you live in, though the basic requirement is similar in England, Scotland and Wales. Since 6 April 2016, every dog owner in England, Scotland and Wales must make sure their dog is microchipped once it’s older than eight weeks. In Northern Ireland it works through the dog licence.
Dog microchipping law in Scotland
Scotland’s rule comes from the Microchipping of Dogs (Scotland) Regulations 2016, and the duty sits with the owner of any dog older than eight weeks. If you bring a dog into Scotland from elsewhere, it must be microchipped within 30 days of arriving. If a chip fails, you must have a new compliant chip implanted.
Scotland allows one exemption, and it’s a narrow one. The only carve-out is where a vet certifies that chipping would harm the dog’s health; there’s no working dog exemption.
Scotland also has an express duty to keep your details current that England does not. From 6 April 2016, every owner of a microchipped dog must tell the database operator about any change to the details on the record, such as a new address or phone number. This duty is for dogs only.
Scotland isn’t alone in that: Northern Ireland has required owners to update their dog’s details since 2015, while England and Wales have no general duty to do so.
So if you live in Scotland and you’ve moved house or changed your number, it’s worth telling your database today. You can update or register the microchip with Pet Database.
Microchipping law in Wales and Northern Ireland
In Wales, the rule matches England’s in date and age. From 6 April 2016, every owner of a dog older than eight weeks must ensure it is microchipped, under the Microchipping of Dogs (Wales) Regulations 2015. Our page on microchipping law exemptions explains the general position on health exemptions.
The Welsh regulations go further than the date and age. The duty doesn’t apply to a certified working dog, and it also doesn’t apply while a vet certifies on an approved form that chipping would significantly compromise the dog’s health, with the certificate stating the period. If you import a dog into Wales, you must have it microchipped within 30 days.
Wales has no general duty to tell the database when your contact details change, but a dog only counts as microchipped while its details are on a database, so an out-of-date record puts you in breach of the main duty anyway. A dog can’t be passed to a new owner before it’s chipped, and if a chip fails or a dog has an adverse reaction, that must be reported to the Welsh Ministers.
In Northern Ireland, a dog licence will only be issued once the dog is microchipped. No licence without a chip has been the law since 9 April 2012, under the Dogs (Amendment) Act (Northern Ireland) 2011. All dogs in Northern Ireland must be microchipped at eight weeks old, and before an owner applies for a dog licence.
If you’re moving to Northern Ireland with a dog, the order matters. It’s an offence to take possession of a dog that needs a licence before that licence has been issued, whether you paid for the dog or not. So the practical sequence is: get the dog chipped first, then apply for the licence before you take the dog on.
You apply for the licence through your district council, which issues it.
Not every dog needs a licence. The exceptions include a puppy under six months kept by the owner of its mother, an assistance dog kept by a disabled person and a police dog. Under-16s can’t hold a licence. A licence lasts one year and costs £12.50. The £5 rate applies to a person over 65 (for dogs other than their first), a person on an income-related benefit, or a sterilised dog. An over-65’s first or only dog is free.
Since 1 January 2015, Northern Ireland owners must also notify the database as soon as reasonably practicable when their details change. Breaking that duty is an offence with a fine of up to £1,000. Owners are responsible for making sure the contact details against their dog’s microchip number are accurate. Without them, the dog is not considered microchipped and the licence will not be valid.
What happens if your dog isn't chipped
If your dog still needs a chip, our dog microchipping page explains how to book it, and our guide to microchipping penalties covers what happens if you don’t.
In England, not chipping your dog is not itself an offence. If your dog isn’t chipped, an authorised person can serve you a notice requiring it to be done within 21 days. If you don’t comply, they can arrange the chipping without your consent and recover the cost from you. Ignoring that notice is the offence, and it carries a fine of up to £500, not an automatic £500 fine.
Wales works the same way. An authorised person, including any police constable or Police Community Support Officer, can serve the owner of an unchipped dog a notice to have it chipped within 21 days. Ignoring it is an offence with a fine of up to £500, and you can appeal a notice.
Scotland’s notice covers more ground. An authorised person can serve a 21-day notice on an owner whose dog is unchipped, whose chip has failed, or whose details on the database are out of date. If you don’t comply, they can chip the dog or notify the correct details and recover the cost. Ignoring the notice, or knowingly giving a database false details, is an offence with a fine of up to £500.
Northern Ireland is different because the chip sits behind the licence. Keeping a dog without a licence is an offence with a fine of up to £1,000. It can instead be dealt with by a fixed penalty set by the council, £75 if the council hasn’t set one.
The four nations side by side
For the fuller picture of how the whole system works, our quick guide to UK pet microchipping laws covers the shared rules in one place.
Cats are different
If it’s a cat you’re checking on, the map is simpler. Cats must be microchipped in England only. In Scotland, Wales and Northern Ireland, chipping your cat is optional.
The record is what gets your pet home
An owner is responsible for keeping microchip details up to date. Whichever nation you’re in, the quickest way to be sure you’re compliant is a registered chip with your current details on it. A chip that was never registered, or sits in a previous owner’s name, won’t get your dog or cat home.
The chip itself holds only a 15-digit number; it’s the record on the database that your details sit on. Register your dog with Pet Database to put your current name, phone number and address against that number.
