Is puppy farming illegal in the UK?

There is no single offence called puppy farming, but the practice is targeted through two routes: a licensing requirement for anyone breeding dogs commercially, and Lucy's Law, which bans commercial third-party sales of puppies in England. Breeding or selling outside those rules can be a criminal offence.

Lucy's Law is the ban on commercial third-party sales of puppies and kittens in England, introduced in 2020. It means anyone buying a puppy commercially has to go directly to the breeder or to a rehoming centre, rather than through a shop or dealer with no first-hand knowledge of how the litter was reared.

Do all dog breeders need a licence?

Only those breeding at a commercial scale, generally three or more litters in a year with the intention of selling puppies, need a local authority licence in England. An occasional, unplanned litter from a family pet does not usually meet that threshold, though the exact rules vary slightly by nation.

How can I tell if a breeder is following the law?

Ask to see the puppy with its mother at the place it was bred, and ask whether the breeder holds a licence if they are breeding at any scale. A seller who avoids that request, offers to meet elsewhere, or has multiple breeds available is worth treating with real caution.

Puppy farming: what UK law actually says

Puppy farming is not a single offence with its own name in UK law; it is a description applied to breeding done at volume with little regard for the welfare of the parent dogs, and the law tackles it through two separate routes — licensing anyone who breeds dogs commercially, and restricting how puppies can legally be sold. Both exist specifically because unlicensed, high-volume breeding and anonymous third-party selling are what let poor welfare go unseen.

Licensing: who has to have one

Under the Animal Welfare (Licensing of Activities Involving Animals) Regulations, anyone in England who breeds dogs for sale beyond a small threshold of litters a year, or who breeds three or more litters in a twelve-month period with the intention of selling any puppies, needs a licence from their local authority. Licensed breeders are inspected against welfare standards covering the health of the parent dogs, how puppies are reared, and record-keeping on litters produced.

The licensing threshold exists to catch commercial-scale breeding specifically, rather than someone whose family pet has an occasional accidental litter. A local authority can refuse or revoke a licence where welfare standards are not met, and breeding without a required licence is a criminal offence. Scotland, Wales and Northern Ireland run their own equivalent schemes rather than the same regulations.

Lucy's Law: how a puppy can legally be sold

Since 2020, commercial third-party sales of puppies and kittens have been banned in England — known as Lucy's Law, after a King Charles Spaniel rescued from a breeding establishment. In practice this means a business cannot buy in puppies from breeders and resell them on to the public through a pet shop or a similar outlet; anyone buying a puppy commercially has to deal directly with the breeder, or with a rehoming centre.

The point of the rule is traceability. A buyer dealing directly with the person who bred the litter can see the puppy with its mother, ask about her health and the conditions the litter was raised in, and be less easily misled by a middleman with no first-hand knowledge of either. Scotland and Wales have introduced their own versions of the same principle.

What this means if you are choosing a puppy

The practical upshot of both rules is the same piece of advice welfare organisations have given for years: always see a puppy with its mother, in the place it was actually bred, before agreeing to buy it. A seller who will not let you do that, who offers to meet you somewhere else, or who has several different breeds or litters available at once, is a strong signal that something does not add up.

None of this guarantees a puppy's health on its own — licensing and Lucy's Law reduce the chance of buying from a high-volume, poorly run set-up, but they are not a substitute for seeing the puppy and its mother in person and asking direct questions about how the litter was reared.

Common questions

Is puppy farming illegal in the UK?: There is no single offence called puppy farming, but the practice is targeted through two routes: a licensing requirement for anyone breeding dogs commercially, and Lucy's Law, which bans commercial third-party sales of puppies in England. Breeding or selling outside those rules can be a criminal offence.
What is Lucy's Law?: Lucy's Law is the ban on commercial third-party sales of puppies and kittens in England, introduced in 2020. It means anyone buying a puppy commercially has to go directly to the breeder or to a rehoming centre, rather than through a shop or dealer with no first-hand knowledge of how the litter was reared.
Do all dog breeders need a licence?: Only those breeding at a commercial scale, generally three or more litters in a year with the intention of selling puppies, need a local authority licence in England. An occasional, unplanned litter from a family pet does not usually meet that threshold, though the exact rules vary slightly by nation.
How can I tell if a breeder is following the law?: Ask to see the puppy with its mother at the place it was bred, and ask whether the breeder holds a licence if they are breeding at any scale. A seller who avoids that request, offers to meet elsewhere, or has multiple breeds available is worth treating with real caution.

Sources

Written against guidance published by UK veterinary and welfare organisations. Always confirm specifics with your own vet.

Written by Matt Garnett, who runs Giddy Pets and is a lifelong pet owner — not a vet. This is general information, not veterinary advice, and it cannot replace an examination by the vet who knows your animal. How we write these guides.