Dog Laws UK: What You Need to Know

Owning a dog in the UK comes with legal responsibilities, from what your dog wears on its collar to how it behaves around livestock. Several laws have changed in the last few years, so even experienced owners can be caught out. This guide covers the main dog laws in England and Wales that every owner should know, with notes where Scotland or Northern Ireland differ.

This is a general guide, not legal advice. Laws change, so check GOV.UK or your local council if you're unsure.

1. Your dog must wear an ID tag in public

Under the Control of Dogs Order 1992, any dog in a public place in England, Scotland or Wales must wear a collar with the owner's name and address on it, either engraved on the collar or on an attached tag. This applies even if your dog is microchipped. Owners who don't comply face an unlimited fine in England and Wales (up to £5,000 in Scotland). A few working dogs are exempt while they're working.

A phone number isn't legally required, but it's the fastest way for someone to reach you. For a line-by-line guide, see what details should be on a dog ID tag, or our page on UK dog tag law.

If a dog is found in public without identification, the council's dog warden can seize it and treat it as a stray. Under the Environmental Protection Act 1990, the council will try to contact the owner, but a dog that isn't claimed within seven days can be rehomed, so a readable tag really matters.

2. Microchipping is compulsory

All dogs in England, Scotland and Wales must be microchipped and registered on an approved database by the time they're eight weeks old, and it's the keeper's job to keep the details up to date. If you don't, the council can serve a notice, and failing to comply can lead to a fine of up to £500. Since June 2024, cats in England must also be microchipped by 20 weeks old.

A microchip doesn't replace the tag: you need both. A finder can read a tag straight away, while a chip can only be read with a scanner.

3. Buying a puppy

• Lucy's Law: across Great Britain, puppies under six months can only be sold by the breeder who bred them or rehomed by a rescue centre. Pet shops and other third-party sellers can't sell them.
• Eight weeks minimum: it's illegal for a licensed breeder to sell a puppy younger than eight weeks.
• Age limit: it's an offence to sell a pet to anyone under 16.
• Breeding licence: in England, anyone breeding three or more litters and selling at least one puppy in a 12-month period, or advertising a business of selling dogs, needs a licence from their local council. Licensed breeders must show their licence number when advertising.

Our guide to buying a puppy safely explains how to spot puppy farms and scams.

4. Your duty of care

The Animal Welfare Act 2006 makes owners legally responsible for meeting their dog's needs. That means a suitable place to live, a proper diet and fresh water, the ability to behave normally, appropriate company, and protection from pain, injury, suffering and disease. Causing unnecessary suffering, or failing to meet these needs, is a criminal offence.

5. Dangerous dogs and banned breeds

Under the Dangerous Dogs Act 1991, it's a criminal offence to let any dog be dangerously out of control anywhere, including in your own home or garden. That includes a dog making someone worried it might injure them. Penalties include an unlimited fine, prison, a ban on owning dogs and, in some cases, the dog being destroyed.

Some types of dog are banned outright. Since February 2024, it has been illegal to own an XL Bully-type dog in England and Wales without an exemption certificate, and exempt dogs must be neutered, insured, muzzled and on a lead in public. Scotland has introduced similar rules.

6. Dogs and livestock

It's an offence to let your dog worry livestock, which means attacking, chasing or causing distress to farm animals. Since 18 March 2026, updated rules in England and Wales mean:

• the maximum penalty is now an unlimited fine (it used to be £1,000)
• the offence covers roads and paths as well as fields
• llamas and alpacas are now protected alongside sheep, cattle, goats, pigs, horses and poultry
• police have new powers to seize dogs and collect evidence

Keep your dog on a lead around livestock, and follow the Countryside Code when you're out walking. Farmers can, in some circumstances, lawfully shoot a dog that's worrying their animals.

7. Fouling and public spaces

Many councils use Public Spaces Protection Orders (PSPOs) to set local rules for dogs. These can require you to:

• clean up after your dog
• keep your dog on a lead, or put it on one if an officer asks
• keep dogs out of certain areas, such as children's play areas
• limit the number of dogs one person walks at a time

Breaking a PSPO can lead to a fixed penalty notice, and a bigger fine in court if you don't pay. Check your council's website for the rules where you live and walk, and always carry poo bags.

8. Dogs in cars

Rule 57 of the Highway Code says dogs and other animals must be suitably restrained in a vehicle so they can't distract you or injure you or themselves if you stop quickly. A dog crate, carrier, dog guard or seatbelt harness all work. Driving with an unrestrained dog won't break the Highway Code on its own, but it could lead to a careless driving charge, and it may invalidate your car insurance.

Never leave a dog alone in a car on a warm day. Cars heat up very quickly, and leaving a dog to suffer can be an offence under the Animal Welfare Act.

9. Pet theft

Since August 2024, the Pet Abduction Act 2024 has made taking or keeping a dog from its owner a specific criminal offence in England and Northern Ireland, carrying up to five years in prison. It recognises that pets are more than property. To protect your dog, don't leave it tied up outside shops, keep your garden secure, and consider engraving "MICROCHIPPED" on its tag to show it can be traced.

10. Taking your dog abroad

Pet travel rules have changed several times since Brexit. Since 22 April 2026, GB residents can't use EU pet passports to take dogs to the EU, and need an Animal Health Certificate from an official vet for each trip, issued no more than 10 days before travel. Your dog must be microchipped and vaccinated against rabies at least 21 days before travelling, and most dogs need tapeworm treatment before coming back to Great Britain.

The UK and EU are negotiating changes that could make pet travel easier again, so always check the latest guidance on GOV.UK before you book. And make sure your dog's tag and microchip details are up to date before you go.

Stay on the right side of the law

Most dog laws come down to the same few things: keep your dog identified, under control, cared for and cleaned up after. Start with the simplest one. A personalised dog ID tag from Pet-Tags is engraved with your details for free, dispatched within 24 hours with free postage, and guaranteed for 5 years.