What the CMA vet decision means

What applies now

That RCVS supporting guidance already tells veterinary surgeons to offer a range of reasonable treatment options and costs, not to obstruct a change of practice, to give realistic estimates before treatment starts, and to itemise invoices. GOV.UK guidance already says you decide which practice to use and which treatments to buy, and notes that different practices can charge different prices for the same treatment. None of that depends on the later CMA Order.

What changes later

The later legal instrument, called an Order, that would make those consumer changes binding was still in draft on 30 August 2026. The consultation on that draft closed on 20 August 2026. The statutory deadline for putting the consumer changes into effect is 23 September 2026, unless that deadline is extended by up to four months for special reasons. The case page is the dated record.

Once that Order is made, the CMA business explainer sets intended start dates. Treat them as a published plan, not as duties every practice must already meet. Smaller businesses, those with fewer than 15 first-opinion practices, generally have longer than larger businesses.

Price lists, services and ownership

After the Order, relevant first-opinion practices are expected to publish standard price lists, basic service information including out-of-hours arrangements, and, for groups, ownership information. The March 2026 final-report summary is where that package was set out. The explainer currently expects many of those transparency duties from December 2026 for larger businesses and March 2027 for smaller businesses and group ownership information.

Written estimates and itemised bills

The planned estimate rule is a written estimate when recommended treatment is reasonably likely to cost £500 or more including VAT, then a written update if the total is reasonably likely to rise by 20% or £500 including VAT, whichever is lower. The CMA says that £500 figure is later to be adjusted for inflation using the Consumer Prices Index (CPI). Itemised bills would also become an Order duty. The explainer currently expects those two rules from June 2027 for larger businesses and September 2027 for smaller ones.

Prescriptions and buying medicines elsewhere

The CMA has also said that practices should tell owners a written prescription is available and that medicines may be cheaper elsewhere, and that prescription fees should be capped at £21 including VAT for the first medicine in a consultation and £12.50 including VAT for each extra medicine in the same consultation. Those cap figures are later to be adjusted for inflation using the Consumer Prices Index (CPI). The explainer currently expects the fee cap from March 2027 for larger businesses. Current RCVS guidance already requires practices to tell clients that prescriptions are available. Your rights to a vet prescription covers that process.

What you can already ask your practice

• A realistic estimate before you agree treatment, and an itemised bill. Current RCVS guidance already supports both. The later CMA rule is a written estimate at a set cost threshold.
• A written prescription if you want to buy a medicine elsewhere. That availability duty is already in RCVS guidance.
• Who owns the practice if that is not clear. You can ask now, but the CMA's planned ownership-transparency duty is not yet in force.
• The practice's own prices for common items such as consultations, vaccinations and prescriptions if you are choosing where to go.

If you want to see what other practices would charge for a specific procedure, you can request quotes.