Pet insurance, explained

Pet insurance pays towards the cost of vet treatment when your pet is injured or becomes ill, and some policies also cover things like third-party liability for dogs, loss or theft, and kennel fees. The most important choice is the type of policy, because it decides whether long-term conditions stay covered as your pet gets older.

There are four main types: lifetime, time-limited (annual), maximum benefit (per condition) and accident only. Almost all policies exclude pre-existing conditions, and many charge a co-payment, a percentage of each claim, on top of a fixed excess. Those two features explain most of the disappointment people feel when they first claim.

The four types of pet insurance

MoneyHelper describes lifetime cover as the most comprehensive: the insurer keeps covering your pet regardless of age or existing conditions, subject to the policy's conditions, as long as you keep paying. It also notes that annual policies make it easier to switch each year, but that finding cover becomes harder as your pet gets older.

Why the type matters: an illustration

Take a dog diagnosed with a skin condition needing treatment for the rest of its life. Under a time-limited policy, the condition is covered for the policy's time limit, then stops. Under a per-condition policy, it is covered until the per-condition limit is used up. Under a lifetime policy, the annual vet fee limit resets each year when you renew, so the condition can continue to be claimed for. This is a simplified illustration; the exact rules depend on the policy wording.

Pre-existing conditions

Most policies exclude conditions that existed before cover started. Definitions vary, and many are wider than people expect. One policy considered by the Financial Ombudsman Service defined a pre-existing condition as including any illness or injury, or any signs of one, that occurred or existed in any form before the start date, and anything that showed up during the waiting period at the start of the policy.

Things to know:

• Signs count, not just diagnoses. If your vet noted symptoms before cover began, the insurer may treat a later diagnosis as pre-existing.
• You must declare your pet's history. MoneyHelper says failing to do so could make the policy void and lead to a claim being rejected.
• Switching insurer resets the clock. Conditions your pet has already had are likely to be excluded by a new insurer.
• Hereditary and congenital conditions are generally not classed as pre-existing, according to MoneyHelper, but check the cover is unrestricted rather than limited to certain circumstances.

Related and recurring conditions

Many policies treat "related" conditions, such as ones affecting both knees or both eyes, as a single condition. In the ombudsman decision mentioned above (DRN-4284725), an insurer refused a claim for removing a lump because the dog had had a different, smaller lump in another place before the policy began. The ombudsman's general approach is that, unless evidence shows the first condition led to the second, or it was noted at the time that the second was likely, they should be treated as separate conditions. It upheld the complaint about the refused claim.

Excess and co-payment

You normally pay two kinds of contribution:

• Fixed excess: a set amount per condition or per claim. MoneyHelper suggests looking for a single excess in the region of £50 to £100, and avoiding excesses that increase as your pet ages unless you are happy to trade that for lower premiums.
• Co-payment (also called co-insurance): a percentage of each claim. MoneyHelper warns this can get very expensive with large vet bills. Some policies increase what you pay as your pet gets older.

Illustration only: with a £100 fixed excess and a 20% co-payment, on a £1,000 vet bill you would pay £100 plus 20% of the remaining £900, a total of £280. The insurer would pay £720, if the claim is within the policy limits.

What else policies can include

Depending on the policy, cover can extend to:

• Dental treatment after accident, illness or injury, but not usually cosmetic work
• Complementary treatment such as physiotherapy, if recommended by a vet
• Loss or theft, including advertising and reward costs
• Third-party liability for dogs, covering legal liability if your dog injures someone or damages property. MoneyHelper says cover is usually £1 million or more, and policies typically say you must not admit liability.
• Kennel or cattery fees if you go into hospital
• Emergency treatment abroad

Neutering is not usually covered, though MoneyHelper says neutered pets can be cheaper to insure.

What changes the cost

Insurers price pet cover on factors including the type of animal, breed, age, where you live, whether the pet is neutered, the type of policy, the vet fee limit, and the excess and co-payment. MoneyHelper notes pedigree breeds can be more prone to hereditary conditions and that larger dogs are more likely to have joint problems. In the ombudsman decision above, the insurer explained that address affected the premium because of local vet fees and claim numbers.

How claims work and why they get refused

You or your vet submit a claim with the treatment history and invoice. The insurer checks the clinical history, often going back to before the policy started. FCA rules require insurers to handle claims promptly and fairly and not unreasonably reject them.

Common reasons pet claims are refused or reduced:

• the condition, or signs of it, existed before cover started
• the condition appeared during the initial waiting period
• the time limit or per-condition limit has been reached
• the condition is treated as "related" to an earlier one
• the pet's history wasn't fully disclosed
• the treatment is excluded, such as routine or preventive care

If you disagree with a decision, see what to do when an insurance claim is rejected.

What to check in your policy

• Policy type: lifetime, time-limited, per-condition or accident only
• Vet fee limit: per year, per condition, or both, and whether it resets
• Definition of pre-existing condition: does it include "signs" or "symptoms"?
• Waiting period at the start of cover
• Related, recurring and bilateral conditions wording
• Fixed excess: per condition or per claim? Does it rise with age?
• Co-payment percentage, and the age at which it starts
• Age limits for starting cover and for death-from-illness cover
• Dental, complementary therapy and behavioural cover
• Third-party liability for dogs, and the limit

When to talk to a regulated adviser

If your pet is older, has a long-term condition, or is an exotic species, an FCA-regulated insurance broker may be able to find specialist cover. Before cancelling an existing lifetime policy, it can make sense to ask the new insurer in writing exactly how your pet's existing conditions would be treated.

Common questions

What is the difference between lifetime and time-limited pet insurance?

A lifetime policy renews each year and keeps covering conditions your pet develops, including long-term ones, subject to its limits and as long as you keep renewing. A time-limited (annual) policy covers a condition only for a limited period, after which that condition is no longer covered. Time-limited cover generally costs less but offers less protection for ongoing illness.

Does pet insurance cover pre-existing conditions?

Usually not. Most policies exclude any illness, injury or sign of one that existed before the policy started, and MoneyHelper says time-limited policies generally won't cover pre-existing conditions. You must declare your pet's medical history when buying cover; if you don't, the policy could be void and a claim rejected. A pet with a pre-existing condition may still get cover, but probably not for that condition.

What is a co-payment or co-insurance excess?

It is a percentage of each claim you pay yourself, on top of a fixed excess. For example, as an illustration only, with a £100 fixed excess and a 20% co-payment, on a £1,000 vet bill you would pay £100 plus 20% of the remaining £900, a total of £280. MoneyHelper warns co-insurance can get very expensive with large vet bills.

What happens to cover if I switch pet insurer?

Conditions your pet has already had are likely to count as pre-existing with the new insurer and be excluded. MoneyHelper notes that replacement cover may also cost more because prices are based on your pet's age when the policy starts. This is why people with older pets or pets with ongoing conditions often find switching difficult.

Is there an age limit for pet insurance?

Many insurers set an upper age for starting a new policy. MoneyHelper says some will only start a new policy if your pet is under eight or nine years of age, or younger for some breeds. Existing lifetime policies usually continue as your pet ages, though premiums are likely to rise.

Sources

1. MoneyHelper: Pet insurance, do you need it? checked 2 Oct 2026
2. Financial Ombudsman Service: Decision DRN-4284725 (pet insurance, related conditions) checked 2 Oct 2026
3. FCA Handbook: ICOBS 8.1 Insurance claims handling checked 2 Oct 2026
4. Financial Ombudsman Service: Insight in depth, underinsurance, misrepresentation and non-disclosure checked 2 Oct 2026

This guide is general information about how insurance works in the UK. It isn't advice and doesn't take your circumstances into account. Policies differ: your own policy documents are what count.