UK pet insurance glossary
By the PetCoverPro editorial team Vet-reviewed by Dr Avron Taitz, BVSc
Last updated
Every term you will see on a UK pet insurance quote, policy document, or claims letter, defined in plain English. Use the alphabet bar to jump to a letter.
A
- Accident-only cover
- The cheapest type of pet insurance. It pays out if your pet is injured in an accident, but covers nothing if they fall ill — which is around 70% of all claims by value.
- More: Lifetime vs annual vs accident-only →
- Annual cover
- A policy that resets every 12 months. Conditions claimed in year 1 are usually excluded from year 2 onwards, which makes it a poor fit for any chronic illness.
- More: Lifetime vs annual vs accident-only →
B
- Bilateral condition
- A condition that affects both sides of the body, like hip dysplasia or cruciate ligament damage. Most insurers treat a claim on one side as evidence of a pre-existing condition on the other side at renewal.
C
- Chronic condition
- A long-term illness that needs ongoing treatment, such as arthritis, diabetes, atopic dermatitis, or epilepsy. Only lifetime cover keeps paying out for these year after year.
- Claim limit
- The maximum the insurer will pay out per condition, per year, or over the lifetime of your pet. Always check whether the headline figure is per condition or shared across every condition.
- Co-insurance (co-payment)
- A percentage of every claim you agree to pay yourself, on top of the excess. A 20% co-insurance on a £4,000 claim means you pay £800 — common from age 8 onwards.
- More: Excess explained →
- Cooling-off period
- A short window after taking out a new policy (usually 14 days) during which you can cancel for a full refund, provided you have not made a claim.
D
- Deductible
- The American term for an excess. UK insurers always say "excess".
E
- Excess
- The fixed amount you pay towards every claim before the insurer pays the rest. Most UK policies use £75 to £200; some apply it per condition per year, others per claim.
- More: Excess explained →
- Exclusion
- Anything the policy will not cover. Usually includes pre-existing conditions, dental disease unless from injury, behavioural treatment, breeding, and routine care.
F
H
- Hereditary condition
- An illness inherited from a pet’s parents, like syringomyelia in Cavaliers or hip dysplasia in Labradors. Most lifetime policies cover hereditary conditions; many cheaper policies exclude them.
L
- Lifetime cover
- The gold standard. The vet-fee limit refreshes every renewal, so chronic conditions stay covered for the rest of your pet’s life as long as you keep paying.
- More: Lifetime pet insurance UK →
M
- Maximum benefit cover
- A non-lifetime policy with a fixed amount per condition (e.g. £4,000 per condition for life). When that pot is gone, the condition is excluded forever.
- Microchip discount
- A small premium discount (usually 5% to 10%) some insurers apply if your pet is microchipped. UK law requires microchipping for dogs and cats anyway.
- MRT or MRI limit
- A separate sub-limit for advanced imaging like MRI scans, CT scans, and oncology referrals. Some policies cap this at £1,500 even when the headline limit is much higher.
N
- No-claims discount
- A premium reduction for years with no claim, typically 5% to 20%. Less common in pet insurance than in motor insurance, and lost the moment you make a claim.
- Non-lifetime cover
- Any policy that is not lifetime — annual, time-limited, maximum benefit, or accident-only. Cheaper up front, but stops paying for a condition at some point.
P
- Per-condition limit
- A cap on how much the policy pays out for one specific condition. On lifetime cover this resets each year; on maximum-benefit cover it is for life.
- Pre-existing condition
- Any illness, injury, or symptom your pet had before the policy started or during a waiting period. The single most common cause of refused claims, which is why switching insurer once your pet has any history is risky.
- More: Pre-existing conditions guide →
R
- Renewal
- The annual point at which your policy is offered again, almost always at a higher premium. UK pet insurance renewals of 15% to 30% are normal even with no claims.
T
- Time-limited cover
- A non-lifetime policy that pays out for any one condition for only 12 months from when it was first noticed. Cheap, but ends cover for chronic conditions quickly.
U
- Underwriter
- The insurance company that actually carries the financial risk. Many household-name brands are sold under licence — for example, several brands are underwritten by Royal & Sun Alliance.
V
- Vet fee limit
- The headline cover figure on a pet insurance policy, usually between £2,000 and £15,000 a year. The most important number on the quote after lifetime versus non-lifetime.
- Voluntary excess
- An optional extra excess you choose to take on in exchange for a lower premium. Saves around 15% in premium for £75 of extra excess.
W
- Waiting period
- The gap between starting your policy and being able to claim. Typically 14 days for accidents and illness; 12 months for cruciate ligament conditions.
- Wellness cover
- An add-on that pays toward routine vaccinations, neutering, dental cleaning, or worming. Almost never financially worthwhile compared to paying out of pocket.