Dangerous Dog Breeds in the UK
Dog ownership is a big responsibility, and a handful of breeds are singled out under UK law as posing enough risk that owning one without an exemption is a criminal offence. This guide is fully updated for 2026 and covers all five currently banned types, what changed with the XL Bully ban, and which “scary-looking” breeds (like Bullmastiffs and Rottweilers) are actually completely legal to own.
While all dogs have the potential to be wonderful companions, certain types have been restricted under UK law because of concerns for public safety. In this guide, we’ll cover exactly which breeds are banned, why, and what responsible ownership looks like around them.
The 5 Banned Dog Types in the UK (2026)
As of 2026, it is illegal to own, breed, sell, abandon, or give away five types of dog in England, Wales, Scotland, and Northern Ireland unless the dog holds an official Certificate of Exemption. Note that these are legally defined types based on physical characteristics, not strict pedigree breeds — a dog can be classed as a banned type even without registered breeding.
1. Pit Bull Terrier
The best-known banned type in the UK. Originally bred for bull-baiting and later used in illegal dog fighting, Pit Bull-type dogs can be loyal and affectionate in the right home, but their strength and bite force are why they were the first type named under the original 1991 Act.
Legal status: Banned under the Dangerous Dogs Act 1991.
2. Japanese Tosa
A rare, giant fighting breed developed in Japan. Tosas were bred for stamina and pain tolerance in the ring, traits that made them one of the original four types restricted in 1991.
Legal status: Banned under the Dangerous Dogs Act 1991.
3. Dogo Argentino
Bred in Argentina for big-game hunting, the Dogo Argentino is powerful, athletic, and has a high prey drive. It requires an experienced, confident handler, which is part of why it was restricted.
Legal status: Banned under the Dangerous Dogs Act 1991.
4. Fila Brasileiro
Also known as the Brazilian Mastiff, this giant guarding breed is famously wary of strangers by design — it was bred to hold jaguars and escaped enslaved people alike. That deep suspicion of unfamiliar people is exactly why it made the original banned list.
Legal status: Banned under the Dangerous Dogs Act 1991.
5. XL Bully
The newest addition to the list, and the one that catches most owners by surprise. Following a string of serious attacks, the XL Bully type was added to the banned list in England and Wales, with the ban fully in force since 1 February 2024 (Northern Ireland and Scotland followed with their own timelines). It is illegal to breed, sell, advertise, exchange, gift, rehome, or abandon an XL Bully, or let one stray, without an exemption.
If you already owned an XL Bully before the ban, you needed a Certificate of Exemption from the government. Exempted dogs must be neutered, microchipped, kept on a lead and muzzled in public at all times, and kept in a secure place so they can’t escape.
Legal status: Banned under the Dangerous Dogs Act 1991 (added 2024).
| Banned Type | Origin | Banned Since | Key Trait Behind the Ban |
|---|---|---|---|
| Pit Bull Terrier | UK/Ireland (bull-baiting stock) | 1991 | Bite strength, fighting history |
| Japanese Tosa | Japan | 1991 | Size, fighting-dog conditioning |
| Dogo Argentino | Argentina | 1991 | High prey drive, big-game hunting stock |
| Fila Brasileiro | Brazil | 1991 | Extreme wariness of strangers |
| XL Bully | USA (Bully breed cross) | 2024 | Size and a run of serious attacks |
What’s New for 2026
The rules around banned types keep evolving. Two changes are worth knowing about this year:
- Insurance requirement relaxed from 1 July 2026: banned-type owners will no longer be legally required to hold third-party public liability insurance for their dog, though existing policies must stay valid up to 30 June 2026.
- New child safety rule from 1 November 2026: owners must not leave a child under 12 in close contact with a banned-type dog in a private place, such as a home or garden, without adult supervision.
Always check GOV.UK or your local council for the very latest guidance, since enforcement details can be updated with little notice.
The Dangerous Dogs Act 1991 — What Every Owner Should Know
The Dangerous Dogs Act 1991 is the law behind all five bans above. Under the Act:
- Banned types cannot legally be owned, bred, sold, gifted, or advertised without a Certificate of Exemption.
- A court can assess an individual dog and, in some cases, add it to the Index of Exempted Dogs rather than ordering it destroyed.
- Exempted dogs must be neutered, microchipped, kept muzzled and on a lead in public, and kept securely at home.
- The law also covers “any dog dangerously out of control” regardless of type — so a Labrador or a Cockapoo can be prosecuted under the same Act if it injures someone.
Powerful Breeds That Are NOT Banned
This is where a lot of confusion comes from. None of the breeds below are restricted under UK law — they’re simply large, strong, or historically bred for guarding, which means they need confident training and early socialisation, not a licence to own:
- Bullmastiff: A big, powerful breed originally bred to guard estates against poachers. Completely legal to own in the UK, with no exemption required.
- Rottweiler: Strong and protective by instinct; legal to own, but needs solid, consistent training.
- Doberman: Alert and loyal; legal to own, and generally excellent with proper socialisation.
- German Shepherd: Intelligent and trainable; legal to own and one of the most common working and family breeds in the country.
- Staffordshire Bull Terrier: Frequently confused with the banned Pit Bull type, but the “Staffy” is a distinct, fully legal breed and one of the most popular family dogs in the UK.
Being a Responsible Owner of a Powerful Breed
Whether or not a breed is legally restricted, responsible ownership always comes down to the same basics:
- Early socialisation: expose your dog to other people, animals, and environments from puppyhood.
- Consistent training: obedience training prevents the vast majority of behavioural problems in strong or large breeds.
- Know the law: check GOV.UK and your local council before buying, rehoming, or travelling with a dog that could fall under breed-specific legislation.
Frequently Asked Questions
What are the 5 banned dog breeds in the UK?
Pit Bull Terrier, Japanese Tosa, Dogo Argentino, Fila Brasileiro, and the XL Bully (added in 2024). All five are banned under the Dangerous Dogs Act 1991 unless the individual dog holds a Certificate of Exemption.
Are Bullmastiffs banned in the UK?
No. The Bullmastiff is not on the banned list and can be owned freely in the UK. It’s often confused with banned types because of its size and guarding history, but legally it faces no restrictions.
Is a Pit Bull the same as a Staffordshire Bull Terrier?
No, they’re different. The Staffordshire Bull Terrier is a distinct, fully legal breed. The banned “Pit Bull type” is defined by a set of physical characteristics rather than pedigree, so appearance matters more than the name on paperwork — if in doubt, a vet or dog legislation officer can assess a dog’s type.
Can I still own a banned breed if I already had one before the ban?
Only with a Certificate of Exemption from the government. Exempted dogs must be neutered, microchipped, muzzled and leashed in public, and kept securely. You cannot breed from, sell, or rehome an exempted dog.
What happens if my dog is identified as a banned type without an exemption?
Police or council dog wardens can seize the dog. A court will then decide whether it can be added to the Index of Exempted Dogs or whether it must be euthanised — so acting immediately to get a legal assessment is critical if you’re unsure about a dog’s type.
Knowledge of the law, early socialisation, and consistent training give any strong or powerful dog the best chance at a safe, happy life with its family. Always check the latest guidance on GOV.UK before buying, rehoming, or travelling with a dog that could be affected by breed-specific legislation.
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