Pet Insurance Excess Explained
Excess is the amount you pay towards a claim before the policy pays the rest — here's how the different types work.
Short answer
Excess is what you pay towards each claim — usually a fixed amount per condition per policy year, sometimes with an added percentage contribution.
It sits alongside the vet fee limit and any co-payment, so a lower premium can mean a higher share of every bill.
At a glance
- Best for
- Anyone comparing premiums with different excess options
- Read time
- 3 min read
- Biggest mistake
- Choosing a low premium without checking the excess and co-payment behind it.
What you'll learn
- The three common types of excess (fixed, voluntary, percentage)
- How excess is applied per condition each policy year
- Why excess and co-payment must be read together
Evidence
Knowledge Platform v1.4- Last reviewed
- January 1970
- Providers analysed
- 24
- Documents analysed
- 86
Methodology
In plain English
Excess is the share of a claim you pay yourself. The insurer pays the rest, up to the policy limits.
Most policies set a fixed excess per condition each policy year. Some also let you choose a voluntary excess to lower your premium, and some add a percentage contribution once your pet is older.
Excess is separate from the vet fee limit. You can still pay an excess even when the bill is well inside the limit.
A real-world example
Luna the Domestic Shorthair. Luna has a £400 vet bill for an upset stomach. Her policy has a £99 fixed excess and a 10% co-payment.
- Luna's owner pays the £99 fixed excess first.
- The remaining £301 is shared: 10% (£30.10) is paid by the owner as the co-payment, and the insurer pays £270.90.
- If Luna needs more treatment for the same condition in the same policy year, the fixed excess for that condition usually doesn't apply again until the next policy year.
Three common types of excess
Different policies combine these in different ways. Examples include:
Fixed excess
A set amount you pay per condition each policy year (for example £99 or £150). Bigger fixed excesses usually mean a lower premium.
Example: a £99 excess on a £600 claim means you pay £99 and the policy considers the rest.
Voluntary excess
An extra amount you choose to add on top of the fixed excess to reduce your premium. The policy will only pay once both have been covered.
Example: choosing a £100 voluntary excess on top of a £99 fixed excess means you pay £199 first.
Percentage co-payment
A percentage of each claim you pay after the fixed excess — often added once your pet reaches a certain age.
Example: a 20% co-payment on a £500 claim (after excess) means you pay an extra £100.
Both designs can be sold as "lifetime" cover — the policy wording explains which applies.
Things to understand before choosing
Per condition, per policy year
Fixed excess usually applies once per condition each policy year — but rules vary, so check the wording.
Excess on top of co-payment
If your policy has both, you typically pay the fixed excess first, then a percentage of what's left.
Voluntary excess and premium
Choosing a higher voluntary excess often lowers the premium, but means more out of pocket when you claim. Some owners compare a couple of options to see the trade-off.
Educational only. ClearPetCover does not recommend specific insurers or policies — always read the policy wording before choosing cover.
Want to understand what you'll actually pay?
Every policy is worded differently — yours may include limits, exclusions or rules that don't match this guide. Willow can read your document and explain it in plain English.
Want to understand this for your pet?
Share a few details and Willow will create a plain-English guide tailored to your pet — focused on pet insurance excess. No jargon. No sales pitch.
Frequently asked questions
Before You Decide
Before you choose or renew a policy, run through these quick questions. If any answer feels unclear, Willow can explain what your document actually says.
- Do you know exactly what is — and isn't — covered on the policy?
- Are the vet fee limit, excess and any co-payment clear to you?
- Do you understand how pre-existing conditions and waiting periods apply to your pet?
- Have you checked any inner limits, exclusions or claim deadlines in the wording?
How This Guide Was Created
This guide is based on analysis of publicly available information from major UK pet insurers, comparison sites and consumer guidance sources.
ClearPetCover reviews policy wording, insurer documentation and industry guidance to help explain pet insurance in plain English.
We do not recommend specific insurers or products.
Our goal is to help pet owners understand how pet insurance works so they can make more informed decisions.
Have a question about your own policy?
Ask Willow for a personalised explanation in plain English.
Ask Willow →How UK insurers differ
Policy wording varies between insurers. Compare how UK providers handle this topic using ClearPetCover's independent comparison data.
Continue learning
- Co-Payment on Pet Insurance ExplainedA co-payment is a percentage of each claim you pay on top of the excess — here's how it works, especially for older pets.
- Vet Fee Limits ExplainedA vet fee limit is the pot of money your policy can pay towards treatment — here's what different limits could mean in real life.
- Lifetime Pet Insurance ExplainedUnderstand how lifetime cover works, what resets each year, and why policy wording matters.
- How Pet Insurance Claims Are PaidUnderstand who pays first, what direct claims are, and what to expect after treatment.
- Why Has My Pet Insurance Increased?Renewal prices can jump even when nothing seems to have changed. Here's what usually drives it.
Understand co-payment next
Excess and co-payment work together — knowing both is the fastest way to compare true out-of-pocket cost.
You may also find these useful
A short, curated list — not everything we've ever written.