The XL Bully ban is the most significant change to UK dog ownership law since the Dangerous Dogs Act 1991. Introduced in stages from December 2023, the legislation makes it a criminal offence to own an XL Bully type dog without a Certificate of Exemption. This guide explains exactly what the XL Bully ban means in 2026, what is and isn’t banned, and what current owners need to know.
XL Bully Ban UK — At a Glance
| Key Point | Details |
|---|---|
| Type of ban | Added to the Dangerous Dogs Act 1991 (Schedule 1) |
| Application | England, Wales, Scotland, and Northern Ireland (different dates) |
| Exemption available? | Yes — Certificate of Exemption allows existing dogs to stay |
| Can I buy a new XL Bully? | ❌ No — sale, breeding, gifting, rehoming, and advertising banned |
| Definition basis | Physical characteristics (phenotype), not DNA or breed registration |
| KC recognition | XL Bully is NOT a Kennel Club recognised breed |
The Ban Timeline — England, Wales, Scotland & Northern Ireland
| Nation | What Became Illegal & When |
|---|---|
| England & Wales | ▸ 31 December 2023: Illegal to breed, sell, exchange, gift, rehome, abandon or let stray an XL Bully. Must be muzzled and on lead in public ▸ 1 February 2024: Illegal to own without Certificate of Exemption (deadline to apply was 31 January 2024) |
| Scotland | ▸ 23 February 2024: Illegal to breed, sell, abandon or give away XL Bully type dogs ▸ 1 August 2024: Illegal to own without Certificate of Exemption |
| Northern Ireland | ▸ 5 July 2024: Illegal to breed, sell, exchange, gift or abandon; muzzle + lead required in public ▸ 1 January 2025: Illegal to own without Certificate of Exemption |
What Is an “XL Bully Type”? — The Official Definition
The ban applies based on physical appearance, not breed name, DNA, or registration. A dog is classed as an “XL Bully type” if it matches the government’s published physical description, which includes:
- Size (critical): Adult males minimum 51cm (20 inches) at the withers; adult females minimum 48cm (19 inches) at the withers. If a dog is below the minimum height, it is NOT classified as an XL Bully under the ban
- Large, muscular body with a blocky, broad head
- Broad, deep chest with well-sprung ribs
- Short, flat coat
- Wide, high-set hindquarters
Important: This is a phenotype-based definition. A dog that physically resembles an XL Bully — even if it’s a mixed breed, has no documented XL Bully ancestry, or has KC registration from a different breed — can still be subject to the ban if it meets the physical description. When in doubt, consult a vet who can assess your dog against the published government guidance.
What is the Certificate of Exemption?
Owners of pre-existing XL Bully dogs whose applications were accepted by the relevant deadline may keep their dogs under strict conditions for the dog’s lifetime:
| Requirement | Details |
|---|---|
| Microchipping | Dog must be microchipped |
| Neutering | Must be neutered (deadlines varied by dog’s age at the time) |
| Insurance | Valid third-party public liability insurance must be held at all times |
| Public muzzle + lead | Dog must be muzzled AND on a lead at all times in public spaces |
| Secure premises | Dog must be kept in secure conditions that prevent escape |
| Age of owner | Certificate holder must be 16+ |
| Address | Dog must live at the same address as the certificate holder |
| Certificate fee | £92.40 (England/Wales — check for Scotland/NI specific fees) |
What If I Think My Dog Might Be an XL Bully?
- Measure your dog at the withers (top of the shoulder blades) — if under 51cm (male) or 48cm (female), it may not meet the size threshold
- Compare your dog’s physical characteristics against the official government guidance
- Ask your vet — many vets can assess whether your dog meets the XL Bully description and provide a written opinion
- If uncertain, contact DEFRA or your local council — do not assume your dog is exempt without checking
Can I Rescue an XL Bully?
Many XL Bullies entered rescue centres following the ban announcement. Some rescues trained in XL Bully rehoming work with authorities to transfer dogs to exemption certificate holders. You cannot receive an XL Bully as a rehomed pet unless you hold a valid Certificate of Exemption. The application window for new certificates has closed in England/Wales (January 2024 deadline), though guidance for others on the registration list continues.
The Other Banned Breeds
The XL Bully joins four other types already listed on the Dangerous Dogs Act 1991 Schedule 1, where similar rules apply:
- Pit Bull Terrier type
- Japanese Tosa type
- Dogo Argentino
- Fila Brasileiro
Note: The Staffordshire Bull Terrier is not on this list and is fully legal to own without exemption.
FAQs
Is it illegal to own an XL Bully without a certificate?
Yes — in England, Wales (from 1 February 2024), Scotland (from 1 August 2024), and Northern Ireland (from 1 January 2025), ownership of an XL Bully type dog without a Certificate of Exemption is a criminal offence. Penalties include fines and the dog being seized and potentially destroyed. If you believe you own an XL Bully type, seek legal advice immediately.
Does this affect American Bulldogs or Staffordshire Bull Terriers?
The ban targets specifically the “XL Bully type” as defined by the government’s physical description — primarily the American Bully XL. American Bulldogs and Staffordshire Bull Terriers are different breeds and are not banned under the XL Bully legislation. However, any dog that physically matches the XL Bully description may be affected regardless of what breed it is officially registered as.