CMA Veterinary Regulations: The Complete Practice Manager's Guide
By Brian Crocker · Published · Last updated
Why a single overview matters now
Practices working through CMA compliance often approach it remedy by remedy — the pricing transparency checklist, the estimates procedure, the prescriptions communication. Each of those has its own articles in the Order and its own operational detail. What's harder to find is a single map of how all six remedy areas fit together, what the sequencing looks like, and which of the six apply differently to independent practices versus group-owned ones.
This guide provides that map. It draws from the Veterinary Services Market Investigation Order 2026 itself, the CMA's guides for small and large veterinary businesses, and the CMA's final report announcement.
The regulatory context
The Competition and Markets Authority conducted a market investigation into veterinary services for household pets that concluded in March 2026. The result was a package of mandatory remedies that veterinary businesses across the UK have to implement, on the staged timetable set out below. The CMA's own final report does not publish a single headline practice count, but the basis of its website review — "we checked 2,552 UK vet practice websites (58% of all UK vet websites, including both independent and LVG-owned FOPs)", reported in its Summary of final report — implies roughly 4,400 first-opinion practices (FOPs) in scope.
The Order is made. The CMA made the substantive Order on 22 September 2026, after consulting on a draft from 21 July to 20 August 2026, and it came into force the next day. (A separate Veterinary Services Market Investigation (Funding) Order 2026 was made on 20 August 2026, but it deals with RCVS funding, not with the remedies below.) Being in force is not the same as applying to you yet: each remedy has its own compliance date, and you must comply from the next working day after it.
Article 3 of the Order sets those dates, split by business size. A "Small Veterinary Business" is one "with fewer than 15 FOPs and/or OOH Centres", counting first-opinion practices and out-of-hours centres together, so almost every independent practice is in the "smaller" column.
| Remedy | Larger (15+ FOPs and/or OOH centres) | Smaller (under 15) |
|---|---|---|
| Price lists and service information | 22 Dec 2026 | 22 Mar 2027 |
| Ownership disclosure | 22 Mar 2027 | 22 Mar 2027 |
| Complaints process and mediation | 22 Mar 2027 | 22 Mar 2027 |
| Prescription fee cap | 22 Mar 2027 | 22 Sep 2027 |
| Written estimates | 22 Jun 2027 | 22 Sep 2027 |
| Itemised bills | 22 Jun 2027 | 22 Sep 2027 |
| Written-prescription information | 22 Jun 2027 | 22 Sep 2027 |
These are fixed dates in the Order, not indicative months. For the full remedy-by-remedy version, including clinical freedom, cremation disclosure, out-of-hours contracts and the RCVS data return, see the CMA Orders preparation timeline.
The six remedy areas
1. Ownership, prices, and services
Every veterinary business will have to publish a standard price list for the 36 services, products and procedures listed in Schedule 1 of the Order. On the practice website (if one exists) the list must be no more than one click from the homepage, on a page that uses "price", "prices", "pricing" or "fees" in its navigation and metadata. It must also be available at the practice, in the reception or waiting area. Compliance date: 22 December 2026 for larger businesses, 22 March 2027 for smaller ones.
Practices that are part of a group will have to identify the group's name clearly and prominently on their websites, in search and map listings, on premises and signage, and in communications. The Order's definition of a group includes any business running more than one practice site, so a multi-site independent is caught too. A standalone single-site practice with no parent, franchise, joint-venture or shared-brand arrangement has nothing to disclose, though stating its independence is worth doing. Compliance date: 22 March 2027, regardless of size.
For the operational detail on price list format and display requirements, see CMA price list rules for vets.
For the ownership and corporate disclosure rules, see CMA ownership disclosure rules.
2. Information and policies on treatments
Practices will have to provide a written estimate where the treatment pathway a vet recommends is reasonably likely to cost £500 or more including VAT, and more than 20% of that threshold relates to costs still to come. It must be given no later than the end of the next working day. If the total estimated cost is then reasonably likely to increase by 20% or £500 (whichever is lower), an updated estimate will be required. Compliance date: 22 June 2027 for larger businesses, 22 September 2027 for smaller ones.
For the full estimate mechanics, see CMA written estimates: the £500 rule.
3. Prescribing veterinary medicines
Veterinary businesses will have to publicise to pet owners their ability to request a written prescription and that medicines may be cheaper elsewhere, using standard materials the RCVS and CMA supply: a poster in each waiting area and consulting room, a set message in booking confirmations, and a set footer on invoices. Vets will have to make an oral offer of a written prescription in each consultation where medicine is prescribed — except, under Article 14(16) of the Order, for a medicine "where there is a clinical need for it to be administered by a Veterinary Professional or for the Pet to start taking it urgently." This does not mean the vet must say the medicine may be cheaper elsewhere in the consultation; the publicity obligation and the consultation offer are separate. Compliance date: 22 June 2027 for larger businesses, 22 September 2027 for smaller ones.
A fee cap will apply to written prescriptions: a maximum of £21.40 for the first medicine prescribed and £12.70 for each additional medicine prescribed at the same time, both including VAT. These are the Order's figures; the Final Report's £21 and £12.50 were uprated for inflation before the Order was made, and the caps rise with CPI each April from 2028. Compliance date: 22 March 2027 for larger businesses, 22 September 2027 for smaller ones — the widest size split in the package.
For detail on the prescription fee caps and communication obligations, see veterinary prescription fee caps under the CMA reforms.
For the written prescription publicity rules in full, see CMA written prescription rules for UK vet practices.
4. Billing and invoicing
Practices will have to give pet owners itemised bills for treatment and other services, before or when payment is sought. At minimum, an itemised bill will have to show: amounts for individual medicine products; amounts for other goods and services; and costs for services at diagnostic or treatment centres plus any administration charge for arranging them. Compliance date: 22 June 2027 for larger businesses, 22 September 2027 for smaller ones.
For the detail on invoice minimum line items, see CMA itemised bills for vets.
5. Complaints and dispute resolution
Where a complaint cannot be resolved informally within ten working days, it becomes an actionable complaint. The practice will have to acknowledge it in writing within 5 working days and send a full letter of response within 8 weeks of the complaint becoming actionable, extendable to 12 weeks only by writing to the owner within the 8 weeks. First opinion practices (FOPs — the CMA's term for a normal vet practice providing the initial consultation, as opposed to a referral centre) will have to publish their complaint process on their website, keep a complaint log, and name an approved mediation provider. Compliance date: 22 March 2027, regardless of size.
For the complaints process obligations in full, see CMA complaints process rules for UK vet practices.
6. Additional requirements
The Order includes some obligations that apply to groups and networks rather than to standalone single-site practices. If your practice is part of a named group, or runs more than one site, your compliance obligations for ownership disclosure differ from those of a genuinely standalone single-site practice. The Order also covers out-of-hours contracts, clinical freedom policies and cremation information, which the preparation timeline sets out.
How the six areas fit together operationally
The remedies share a common structure: each creates an obligation to inform pet owners about something they could not easily find out before. The pricing list tells them what the practice charges before they arrive. The estimate tells them what their specific visit will cost before they agree to treatment. The prescription disclosure tells them they have the option to source medicines elsewhere. The itemised bill shows them what they were charged for after the fact. The complaints process gives them a route if something goes wrong.
Running across all of these is the ownership transparency element — pet owners should be able to see who owns the practice, since the CMA found that ownership concentration was affecting consumer decision-making.
For a practice working through implementation, the logical sequence is: price list first (website change, relatively straightforward); then estimate SOP (requires training as well as a written procedure); then prescription disclosure (staff training + website update); then invoicing configuration (may require PMS changes); then complaints procedure publication (writing the procedure and publishing it).
See the CMA compliance preparation timeline for a week-by-week planning guide.
What a practice should have in place
By the time each remedy's compliance date reaches you — 22 March 2027 for the earliest and 22 September 2027 for the latest, for a smaller practice — your practice needs:
- A published price list in the required format and locations (details)
- A written estimate procedure, staff-trained and SOP-documented (details)
- A website page or section publicising the written prescription right (details)
- A written prescription policy with fee cap applied (details)
- Billing configuration meeting the minimum line-item requirements (details)
- A written and published complaints process (details)
- Ownership disclosure implemented appropriately for your practice type (details)
The CMA compliance self-assessment tool lets you score your practice against these requirements and identify where the gaps are.
VetComply helps practice managers track CMA compliance alongside RCVS PSS, H&S, VMD, and other non-clinical compliance streams from one place. Join the waitlist for early access.
Reviewed 26 October 2026. The CMA made the Veterinary Services Market Investigation Order 2026 on 22 September 2026 and it came into force on 23 September 2026. The £500 estimate threshold, the £21.40/£12.70 fee caps, the complaint timeframes, the one-click website rule, the 15-site size boundary and every compliance date above are taken from the Order itself, not from the draft consulted on in July and August 2026. The CMA's guides for small and large veterinary businesses, published on 13 October 2026, give the same compliance dates and fee caps. This is general compliance information, not legal advice. Verify the current position against the Order and its Explanatory Note and consult your defence body for practice-specific advice.
Sources:
- Veterinary Services Market Investigation Order 2026 and RCVS Undertakings 2026 — CMA, gov.uk (made 22 September 2026)
- Small veterinary businesses: complying with the CMA's Order — CMA, gov.uk (for businesses with 14 or fewer practices)
- Large veterinary businesses: complying with the CMA's Order — CMA, gov.uk (for businesses with 15 or more practices)
- CMA concludes market investigation with major reforms to veterinary sector — CMA news, gov.uk
- Summary of final report (24 March 2026) — CMA (PDF; source of the 2,552-website review figure cited above)
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Related guides
CMA Written Prescription Rules for UK Vet Practices
The CMA Order's written-prescription rules for UK vet practices — the publicity duty and where the standard materials go, the per-consultation oral offer, its clinical exception, and the date they apply.
CMA Itemised Bills for Vets: What Every Invoice Must Show
The CMA Order's itemised-bill rule for UK vet practices — the minimum line items every bill must show for medicines, goods and outside services, and the date it applies to a practice your size.
CMA Complaints Process Rules for UK Vet Practices
The CMA Order's complaints-process rule for UK vet practices — what it must cover, the 10-day, 5-day and 8-week timeframes, the complaint log, mediation, and the date it applies.