7 August 2026 · 4 min read
Pet insurance claims: what records you actually need to keep
Most rejected pet insurance claims fail on paperwork, not treatment. Here's the short list of records that get a claim paid — and where to keep them.
In this guide
Pet insurance is one of the few things you buy hoping never to use, then depend on completely the day you do. In 2024 UK insurers paid out a record £1.23 billion in pet claims — an average of £685 per claim, according to the Association of British Insurers. But the claims that make the news are the ones that get rejected, and the reason is almost never the treatment. It is the paperwork.
Why claims actually fail
Two problems account for most declined claims, and both are about records rather than medicine:
Pre-existing conditions. When you claim, your insurer asks your vet for your pet's full clinical history — not just the visit you are claiming for. A limp noted eighteen months ago, a "keep an eye on that lump" line, a one-off vomiting episode: any of these can be read as the start of a condition that predates your cover. You cannot rewrite the vet's notes, but you can keep your own dated record so nothing is a surprise, and so you can challenge a wrong assumption with your own timeline.
Incomplete documentation. The claim form asks for specific evidence, and a card receipt showing "£340, VETS4U" is not it.
The records that get a claim paid
Keep these, per pet, from the day you take out a policy:
- The policy schedule and terms — your policy number, start date, annual limit, excess, and the wording that says what is and is not covered. The number alone is not enough when a query arises.
- Itemised invoices, not totals. Each should show the date, the individual line items (consultation, diagnostics, medication, procedure) and the practice details. Ask for these at the desk.
- Clinical history / vet notes for anything relevant. You are entitled to request your pet's records from your practice.
- Referral and diagnostic reports — blood results, imaging, and any specialist letters. Higher-value claims almost always hinge on these.
- Proof of preventive care where the policy requires it. Some policies reduce or refuse payouts if vaccinations or dental care were not kept up, so your treatment and vaccination dates can be part of the evidence, not just good practice.
- A dated symptom log. The single most useful thing you can keep: when you first noticed something, in your own words. This is what lets you contest a "pre-existing" ruling.
Two habits that prevent most disputes
Ask for the itemised invoice every single time, even for a routine visit. It costs you ten seconds at the desk and is genuinely hard to reconstruct months later when a condition turns out to be claimable.
Log symptoms the day you notice them. Insurers reason from dates. A contemporaneous note that says "started scratching left ear, 3 March" carries real weight. A vague memory does not. This is also exactly the raw material your vet wants — the same logic behind what to bring to your pet's next vet visit.
Keep it all in one place per pet
The reason claims descend into a shoebox scramble is that the pieces live in five different apps: the invoice in email, the policy PDF in downloads, the diagnosis in your memory. Tailtend keeps an insurance record per pet — provider, policy number, renewal date and uploaded documents — alongside the vet visits, expenses and dated observations that a claim draws on. Add your policy once and the paperwork is already assembled the day you need it.
Sources
- Association of British Insurers, Insurance payouts for 'pawly' pets top £1 billion for third year in a row (2025).
- WSAVA, Global Guidelines on preventive care records that policies may require.
Frequently asked questions
What is the single most common reason a pet insurance claim is rejected?
A pre-existing condition, closely followed by a missing or incomplete clinical history. Insurers ask your vet for the full history, so a symptom recorded months before you took out the policy — even one you did not claim for — can be treated as pre-existing. Keeping your own dated record helps you see this coming.
Do I need the itemised invoice or is the total enough?
You almost always need the itemised invoice, not just the card receipt or total. Insurers match each line to the treatment claimed, and consultation fees, medication and diagnostics are often assessed differently. Ask the practice for an itemised invoice at the desk — it is much harder to obtain months later.
How long should I keep pet insurance records?
Keep them for the life of the pet and for at least a few years after any claim. Lifetime policies renew annually and each renewal can reference the whole history, so a document from year one can still matter in year eight.