How the reimbursement model works
Almost all U.S. pet insurance works the same way. You pay the veterinary bill in full at the clinic. You submit the invoice and medical records. The insurer applies your deductible, then reimburses the agreed percentage of what remains, up to your annual limit.
That means you need the cash first. A $6,000 emergency surgery is $6,000 on your card today even with excellent coverage; the reimbursement arrives days or weeks later. A handful of insurers now offer direct payment to participating vets, but it is not the norm.
Three settings determine the payout:
- Annual deductible — commonly $100 to $1,000. Some policies use a per-condition deductible instead, which behaves very differently over a chronic illness.
- Reimbursement percentage — typically 70%, 80% or 90% of covered costs after the deductible.
- Annual limit — from around $5,000 to unlimited.
Work an example. A $6,000 bill, $500 annual deductible, 80% reimbursement: ($6,000 − $500) × 0.80 = $4,400 reimbursed, leaving $1,600 of your own money. The same bill at 70% with a $1,000 deductible reimburses $3,500.
The three policy types
Accident-only. Covers injuries — fractures, lacerations, swallowed objects, bite wounds — and nothing else. Cheapest, and appropriate mainly for older pets who no longer qualify for illness coverage.
Accident and illness. The mainstream product. Adds infections, cancer, diabetes, allergies, gastrointestinal disease, and hereditary and congenital conditions where the insurer covers them. This is what industry averages refer to.
Wellness or preventive add-ons. Optional riders covering vaccines, annual exams, dental cleanings and flea prevention. These are not insurance in an economic sense — they are a payment plan for predictable costs, and they usually reimburse close to what they cost. Buy them for budgeting convenience, not for risk transfer.
What it costs, by the industry's own numbers
The North American Pet Health Insurance Association (NAPHIA) publishes an annual State of the Industry report compiled by WTW, covering an estimated 99% of written pet health insurance premium in North America.
In the 2025 report, covering 2024 data, the average annual accident-and-illness premium was $749 for dogs and $386 for cats — about $62 and $32 per month. Dog premiums rose 10.8% and cat premiums 0.9% versus 2023.
The market context is worth knowing. U.S. insured pets reached 6,405,541 at year-end 2024, and U.S. insurers paid $3.07 billion in claims in 2024, up 23.6% year over year. Even so, only about 4.27% of U.S. pets are insured — a penetration rate far below the United Kingdom or Sweden.
Your own premium varies by species, breed, age and ZIP code. Breed matters because hereditary risk is priced in: brachycephalic breeds, large breeds prone to hip dysplasia, and breeds with known cardiac or oncologic predispositions cost more. Age matters most of all, and premiums rise every year as the pet ages.
Pre-existing conditions: the rule that decides everything
No U.S. pet insurer covers pre-existing conditions. That is the industry's defining constraint, and it makes timing the single most consequential decision.
Insurers distinguish two kinds. Incurable pre-existing conditions — diabetes, most cancers, chronic kidney disease — are permanently excluded. Curable ones — a resolved ear infection, a healed laceration, a bout of gastroenteritis — may become eligible after a symptom-free period, commonly 6 to 12 months, if the insurer offers that treatment.
Every policy also has waiting periods before coverage begins: often 2 to 15 days for accidents, 14 to 30 days for illnesses, and frequently 6 to 12 months for orthopedic conditions such as cruciate ligament injury and hip dysplasia. Anything diagnosed during a waiting period is treated as pre-existing.
The consequence is straightforward: pet insurance is bought while the animal is young and healthy, or it is largely not worth buying at all. Waiting until a symptom appears is waiting until it is excluded.
Is it worth it?
Honest answer: it depends on your cash position and your risk tolerance, not on a general rule.
It makes sense if a sudden $5,000 to $10,000 veterinary bill would force you to choose between treatment and your finances, if you have a breed with known expensive hereditary risks, or if you know you would pursue aggressive treatment for a serious diagnosis.
It makes less sense if you have substantial liquid savings, if you are insuring a senior pet whose main future conditions will likely be excluded, or if you would decline expensive interventions anyway.
A reasonable alternative for disciplined savers is a dedicated pet emergency fund. The failure mode is real, though: the fund only works if it exists in full before the emergency, and most people start it after.
Whatever you decide, verify how the insurer handles bilateral conditions (if the left knee was affected before coverage, is the right knee excluded?), whether it pays on the invoice total or a benefit schedule, and whether exam fees are covered at all — exam fee exclusions are a common and rarely advertised limitation.
Frequently asked questions
Sources
Every figure above is drawn from the following publications. Links open on the publisher's own site.
- NAPHIA — State of the Industry Report 2025
- NAPHIA — Industry data
- Insurance Information Institute — Facts + Statistics: Pet ownership and insurance