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Pets, Vets and Pet Insurance
New rules from the Competition and Markets Authority will make vets publish prices, cap prescription fees, give written estimates and offer mediation, starting between late 2026 and 2027. Pet insurance complaints go to the insurer and then the free Financial Ombudsman Service.
At a Glance
Your Rights
What the rules say, with a link to the official source for each.
Vets
Prices and Prescriptions
Vets must publish price lists for standard care (larger businesses by about December 2026, smaller by about March 2027). Written prescription fees will be capped at £21 for the first medicine and £12.50 for each extra one, from about March 2027 (larger) or September 2027 (smaller). source
Estimates
You must get a written estimate when treatment is likely to cost £500 or more, with an update if it is likely to rise by 20% or £500, whichever is lower (from about June 2027 for larger businesses, September 2027 for smaller). source
Vet Complaints
Practices must publish their complaints process, acknowledge complaints within 5 working days and give a full response within 8 weeks, then take part in mediation if you wish. These rules apply by about March 2027. source
Care and Skill
Vet services must be carried out with reasonable care and skill. If not, you can ask for the work to be redone or for a price reduction. source
Pet Insurance
Why Claims Are Refused
Common pet insurance complaints include claims refused for pre-existing conditions, exclusions such as dental treatment, price rises, excesses, co-payments and limits, and backdated exclusions. source
Policy Types
Annual policies cover a condition for 12 months; lifetime policies cover your pet for life as long as you renew; some are accident and illness only; trial cover usually lasts four weeks. source
The Financial Ombudsman
The Financial Ombudsman looks at vet records, the policy terms and what you were told when you bought the policy. It can tell the insurer to put things right and pay for distress or inconvenience. Complain to the insurer first. source
Time Limits to Know
Miss a deadline and you can lose a right. Check the dates on your own paperwork.
- 5 working daysVet complaint acknowledged5 working days (from about March 2027)
- 8 weeksVet full response8 weeks (from about March 2027)
- 8 weeksInsurer final response8 weeks
- 6 monthsRefer to the Financial OmbudsmanWithin 6 months of the final response
Where to Go If It Is Not Put Right
Free routes to escalate, and when each one applies.
The Vet Practice
Always start here, in writing.
Mediation
After the practice's full response, once the new rules apply.
Financial Ombudsman Service
Pet insurance complaints, after 8 weeks or a final response. Free.
Steps to Take
Step 1 of 5
Ask your vet for prices and a written estimate before treatment.
Step 2 of 5
Ask for a written prescription if you want to buy medicine elsewhere.
Step 3 of 5
Complain to the practice in writing if something goes wrong.
Step 4 of 5
For insurance, check whether your policy is annual or lifetime and what it excludes.
Step 5 of 5
Complain to the insurer, then the Financial Ombudsman after 8 weeks or a final response.
(Tap the numbers to reveal steps)
Evidence and Your Letter
Gather your evidence, then build a letter you can send in minutes.
Evidence Checklist
0 of 5 gatheredTap each one when you have it.
Letter Generator
How This Works
- 1
Tick off the evidence you already have, and see what is still missing.
- 2
Answer the letter questions. Your answers fill in the wording for you.
- 3
Copy or download the letter, check every detail, and send it yourself.
A template, not legal advice.
Watch Out For
Common traps and scams to avoid.
Assuming the new vet rules already apply: most start during 2027.
Switching pet insurer and losing cover for existing conditions.
Treatment going ahead without an agreed estimate.
Recent or changing rules: tap to read
Checked 13 October 2026. The CMA vet rules are being phased in between about December 2026 and September 2027, so some do not apply yet.
Common Problems
Step-by-step help for a specific problem covered by this guide.
Want Help?
If you would like one of our team to look at your problem, our initial case review is free. We cannot guarantee any outcome and we do not give legal advice.
Not sure where you stand? Try our action plan tool or the free letter templates.
Sources and official links
- gov.uk/guidance/what-veterinary-businesses-and-vets-need-to-do-following-the-cma Checked 13 October 2026
- citizensadvice.org.uk/consumer/somethings-gone-wrong-with-a-purchase/complain-ab Checked 13 October 2026
- financial-ombudsman.org.uk/consumers/complaints-can-help/insurance/pet-insurance Checked 13 October 2026

Lead reviewer
Luke Marley
Founder and Lead Reviewer
Luke founded CPUK in 2026 after seeing how hard it is for ordinary people to get problems with companies put right. He oversees our guides and checks them against official sources.
Research by Katie Burt, Co-founder and Operations Lead (17 years in the care sector, including managing services for vulnerable adults), and the CPUK Research Team. Researched with AI-assisted research tools, then checked and corrected by our team.
Last checked: 13 October 2026. We are not paid by the companies we write about. Adverts never affect our guidance. Read our editorial policy.