UK veterinary businesses now face a one-year clock to implement legally binding reforms after the Competition and Markets Authority finalized its overhaul of the companion-animal veterinary services market on September 22.

The CMA issued the Veterinary Services Market Investigation Order 2026 and the accompanying Royal College of Veterinary Surgeons Undertakings 2026, converting findings from its market investigation into enforceable requirements designed to, in the regulator's words, "remove barriers to engagement and competition and improve transparency for pet owners." The CMA functions much like the U.S. Federal Trade Commission and Department of Justice Antitrust Division, but with greater authority, and its order carries the force of law for every veterinary practice serving household pets in the UK.

The investigation underlying the order documented what the 34-page summary of the final report calls "significant and widespread problems." More than 60% of UK veterinary practices are owned, wholly or in part, by six large veterinary groups. Between January 2023 and July 2024, average prices at five of those groups exceeded average prices at independent practices. The inquiry group found no persuasive evidence of a strong link between corporate price increases and investment in quality, despite requesting that the large groups provide such evidence.

Fee caps and transparency mandates

The most immediate financial change for practices at the exam table: prescription fees are now capped at £21 (approximately $28) for the first medication and £12.50 (about $16.50) for each additional medication prescribed in the same consultation.

Practices must also publish price lists covering all services, products, treatments, and procedures, with a separate price list for parasiticides. They must post practice information publicly, including the professional qualifications of long-term clinical staff, the practice website address, and hours of operation. Pet care plans require fuller disclosure — the specific products and services covered, how often owners can access each without additional payment, total monthly and annual cost, and cancellation terms. Practices must also give owners cremation options and prices.

Compliance deadlines vary by business size. Businesses operating 15 or more practices must meet these requirements by December; smaller businesses have until March 2027. By March, all practices must also disclose ownership publicly, stating clearly whether they belong to a corporate group or operate independently. Every practice must establish an in-house complaint process, maintain complaint logs, and identify an alternative dispute resolution provider for unresolved owner complaints.

Prescription and billing changes coming in 2027

A second wave of requirements arrives by June 2027 for large businesses and September 2027 for small businesses. Practices must submit information to the RCVS for publication on the Find a Vet online platform and provide pet owners with itemized bills. Any treatment costing more than £500 (approximately $657) requires a written estimate in advance.

Prescription rules tighten considerably. Practices must publicly post information about written prescriptions and provide one on request, with digital delivery to the owner's chosen destination within 48 hours. When prescribing a generic medication, veterinarians must tell the owner verbally what is being prescribed and whether a brand-name product is available for purchase from third parties. At dispensing, both the label and the invoice for the generic must name the corresponding brand-name product. Practices must also publicly post a flyer on long-term medication options.

Expanded role for the RCVS

The reforms restructure UK veterinary regulation itself. The RCVS, which regulates veterinary surgeons and veterinary nurses but previously held no authority over corporate entities, will now support the new legal requirements and monitor business compliance. A tax charged to veterinary businesses will fund that expanded role, and the RCVS will collect, analyze, and publish annual data on veterinary market complaints.

Dr. Tim Hutchinson, RCVS president, acknowledged in the organization's response that many practices have moved ahead on their own. "While we continue to welcome many of the remedies set out in this Order and our role in monitoring veterinary business compliance with them, we are aware that many practices have already introduced some of the measures the CMA has set out for the benefit of animal owners," he said, adding that the college will scrutinize the final text and work with the CMA and businesses to make implementation "as clear and straightforward to implement and monitor as possible."

The British Veterinary Association had raised concerns during consultation about administrative burden, prescription fraud, clinical time, owner choice during consultations, and missing infrastructure. In its response to the final order, the BVA struck a measured tone: "The Final Orders published today bring the CMA's two-and-a-half-year investigation into the UK vet services market for household pets to a close and, whilst we need to scrutinise the details, at first glance, thanks to our intervention, we have a final package of remedies that is more proportionate, workable and fairer for both vets and clients."

With rolling implementation beginning in the coming months, the first compliance deadline for large corporate groups arrives in December, and every UK practice will operate under the full framework by September 2027.