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What Changes on Your Next Vet Bill

The CMA's new vet rules will make prices, estimates and bills clearer. Find out when the changes arrive and how to use them to compare practices and avoid surprise costs.

5 October 2026·5 min read

You should be able to know what a vet visit is likely to cost before the bill arrives. The CMA's 2026 veterinary market investigation has resulted in binding rules designed to make that possible. The rules are being phased in, so check the dates below before relying on a new requirement at your practice.

1. Price lists you can check before booking

Practices will have to publish clear, standard price lists for the services they offer, including consultations, vaccinations, common procedures and surgery. Prices must include VAT, reflect a typical case and be kept up to date when charges change. You should be able to find the list on the practice website or in its waiting area.

For a routine treatment, compare the same service for your pet's size at two or three local practices before booking. Ask what is included and whether your pet's case could cost more than the listed typical price. A lower headline price is only useful if you are comparing the same care.

Larger businesses must introduce these lists by December 2026; smaller businesses have until March 2027.

2. A written estimate for treatment of £500 or more

If the recommended treatment pathway is reasonably likely to cost £500 or more including VAT, the practice will have to give you a written estimate before treatment starts. It should cover the likely costs, including aftercare. If the likely total rises by 20% or £500, whichever is lower, you should receive a written update. Emergencies are the exception to the advance estimate requirement.

Ask for the estimate to show each part of the treatment and discuss any options before agreeing. You can use it to ask another practice for a comparable quote when your pet's condition allows time. An estimate helps you plan, but it is not a fixed quote: complications can change the final charge. Practices will also have to provide an itemised bill so you can see what you paid for.

The written estimate and itemised bill rules start in June 2027 for larger businesses and September 2027 for smaller ones. You can ask for both now, even before the deadline.

3. The chain behind your local practice

A familiar local practice name does not always tell you who owns it. Veterinary groups will have to make their common ownership clear on websites, signs, at the practice and in communications. That lets you check whether two nearby practices are actually part of the same group before you compare them. The CMA's ownership disclosure deadline is March 2027.

When reviewing your bill or booking information, look for the group name and ask the practice if it is unclear. Ownership alone does not tell you which vet is cheaper; comparing the published prices and estimates does.

4. Comparison data through the RCVS

Practices will have to share price and ownership information with the Royal College of Veterinary Surgeons (RCVS). Its enhanced Find a Vet service will make the information available for comparison and share it with approved third-party comparison sites. You will then be able to check local options in one place instead of searching each practice separately.

The RCVS is due to be ready to accept data by June 2027, and businesses must provide their data by September 2027. Until that information is available, use practice price lists or phone for a written quote.

How to pay less on your next bill

For a planned visit, start with the published price list when available, then ask what the fee includes. For treatment likely to reach £500, request a written estimate and compare it with another practice if your pet can safely wait. Check the final itemised bill against the estimate and ask about any difference you do not understand. For repeat medication, ask for a written prescription and compare the total cost, including the prescription fee, with a licensed online pharmacy.

The changes should make it easier to spot a better price and avoid unexpected charges. They do not replace your vet's clinical advice, especially in an emergency.

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