Last updated: October 2026

How pet insurance works

Pet insurance is simple once you see the math. You pay the vet, file a claim, and get reimbursed according to three numbers you choose when you buy the policy: your deductible, your reimbursement rate, and your annual limit.

The claim math, step by step

Try it yourself - then read the walkthrough below:

The three numbers, explained

1. Deductible - what you pay first

Typically $100-$1,000 per year (some insurers use per-condition deductibles). You cover vet bills up to this amount each policy year; the insurer pays nothing until the deductible is met. Higher deductible = lower premium.

2. Reimbursement rate - the split after the deductible

Typically 70%, 80%, or 90% (a few insurers offer 100%). On an $80% plan, a $1,000 eligible bill after the deductible gets you $800 back. Higher reimbursement = higher premium.

3. Annual limit - the cap

Typically $5,000 to unlimited per year. Once the insurer has paid this much in a policy year, you're on your own until renewal. This is the number people underbuy - a single surgery can exceed $5,000.

How claims actually work

1. You pay the vet at the time of treatment (one insurer, Trupanion, can pay the vet directly).
2. You file a claim - usually a photo of the invoice in the insurer's app.
3. The insurer subtracts non-covered items, applies your deductible, then reimburses your percentage.
4. You get paid - typically within days to a couple of weeks by direct deposit or check.

What's covered - and what isn't

Standard accident-and-illness plans cover: emergencies, surgeries, hospitalization, diagnostics (x-rays, bloodwork, MRIs), prescription medications, cancer treatment, and hereditary conditions (with most insurers).

Typically excluded: pre-existing conditions, routine wellness (vaccines, checkups - unless you buy a wellness add-on), cosmetic procedures, and breeding costs.

Waiting periods apply: most plans won't cover anything in the first 2-15 days (accidents) or 14-30 days (illnesses), and orthopedic conditions often carry a 6-month wait. This is why enrolling before your pet is sick matters - see pre-existing conditions.

Frequently asked questions