Every comparison of this kind is an illustration, and anyone presenting one as a forecast is selling something. What follows is arithmetic on published averages with the assumptions printed above the table, not a prediction about your pet. Our own quoted premiums are pending first quote run, so the premium input comes from NAPHIA's 2026 State of the Industry report covering 2025. That report puts the US average accident and illness premium at $836 a year for a dog.
What assumptions do these scenarios use?
Six inputs, and the load-bearing one is NAPHIA's $836 average annual dog premium, used as the contribution on both routes:
- Premium: $836 a year for a dog, NAPHIA's 2025 US average, held flat for ten years.
- Policy terms: $250 annual deductible, 90 percent reimbursement, $10,000 annual limit.
- Savings route: the identical $836 a year into a dedicated account, with no investment growth assumed.
- Claim math: bill minus deductible, times 90 percent, with the deductible resetting each policy year.
- Ten-year totals: $8,360 either way before any bill arrives.
- What is not modeled: routine care, wellness add-ons, and premium increases as the dog ages.
Two of those assumptions are deliberately unfair in opposite directions. Holding the premium flat understates what insurance really costs, because premiums rise with age. Assuming zero interest understates what the savings route really returns. They roughly offset, and both are stated rather than hidden.
Which wins over ten years?
Self-insuring wins on the totals in three of the five scenarios below. The two it loses are the two that end in a payment plan or a treatment decision made on price.
| Ten-year scenario | Insured: total you pay | Saving: total you pay | Better answer |
|---|---|---|---|
| No significant claims | $8,360 | $0, reserve holds $8,360 | Self-insure |
| One $3,000 emergency, year 6 | $8,885 | $3,000, reserve holds $5,360 | Self-insure |
| One $8,000 surgery, year 3 | $9,385 | $8,000, but $5,492 short on the day | Insurance |
| Chronic condition from year 4, $841 a year | $10,524 | $5,887, reserve holds $2,473 | Self-insure |
| Catastrophic year, $66,600 billed | $15,245 unlimited, $64,960 capped | $66,600, reserve covers $6,688 | Insurance |
These are illustrations built from the assumptions above, not quotes and not forecasts.
Why does saving win the ordinary years?
Saving wins the ordinary years because an accident and illness policy pays nothing at all until a bill clears the deductible, and most years produce no such bill. In the no-claim row the insurer keeps $8,360 and returns nothing, which is what insurance is. In the $3,000 emergency row the insurer pays $2,475 and you still paid $8,885 all in, against $3,000 on the savings route.
The chronic row is the one that surprises people. Nationwide's claims analysis puts canine skin allergies at $841 a year at the 80th percentile of billed cost, and billed costs vary widely by region and clinic. A bill that size barely clears a $250 deductible, so the policy reimburses about $532 a year and you pay $309 plus the full premium. Recurring costs that sit near your deductible are the worst possible fit for insurance, and allergies are the single most common dog claim in Nationwide's survey. Raising or lowering that deductible changes the answer, which is why we walk through it in how deductibles work.
Why does insurance win the bad years?
Insurance wins the bad years because a reserve grows in a straight line and vet bills do not wait for it. In the year-three surgery row, the savings route has $2,508 in the account against an $8,000 bill. The ten-year totals actually favor saving by about $1,385, and it does not matter: on the day of the surgery you are $5,492 short, and that gap gets filled by a credit card, a financing application, or a worse treatment plan.
The catastrophic row makes the same point in capital letters. NAPHIA reported the largest single dog claim of 2025 at $66,600, for a three-year-old Bernese Mountain Dog in Philadelphia. An unlimited policy would reimburse $59,715 of that, leaving you $6,885 plus premiums. The same policy with a $10,000 annual limit leaves you paying $56,600, which is why the cap is the spec that decides how much protection you actually bought. See annual limits explained and unlimited coverage plans.
Does the math change for a cat?
Yes, and it moves toward self-insuring. NAPHIA puts the average cat premium at $435 a year, so ten years of contributions build a $4,350 reserve and the single-year break-even bill drops to about $735. Cat bills are smaller on average: as of 2026, CareCredit's national average for feline foreign body removal is $2,367, and the reserve passes that figure in year six.
The tail does not shrink proportionally. CareCredit puts cancer therapy for cats at $4,269, and NAPHIA reported the largest single cat claim of 2025 at $51,600. A $4,350 reserve absorbs the average emergency and nothing like the worst one. The species split is worked through in is pet insurance worth it for dogs and cats.
What does this comparison leave out?
Four things, and the first is the probability of any single row happening to your pet.
- We cannot give you the odds. No citable source publishes an industry-wide claim frequency, so nobody can say how likely your dog is to land in row three rather than row one. The scenarios show sizes, not probabilities.
- Premiums do not stay flat. Veterinary services inflation has averaged 6.5 percent a year over seven years per BLS data, and NAPHIA's US written premium grew 19.7 percent in 2025 while enrollment grew 9.0 percent. The insured column is optimistic. See why pet insurance premiums increase.
- The reserve only works if it exists. An account you can see is an account you can spend, and a fund raided for a car repair is not a fund. The mechanics of making that stick are in building a pet emergency fund.
- Month three is the weak point. A dog reserve holds about $209 after three months of saving. A policy at the same point holds a $10,000 limit, minus any waiting period still running.
So which should you do?
Self-insure only if you can answer yes to all three: you already hold cash that could absorb a $7,000 bill without touching rent, you would actually spend it on the pet, and the pet has no diagnosed condition heading toward chronic treatment. Buy insurance if any of those is a no, and buy it before symptoms exist, because a condition in the chart is excluded by every standard US insurer.
The middle path is legitimate too: a higher deductible cuts the premium and pushes the small claims onto your reserve, where the math above says they belong. Other tools worth pricing alongside both routes are compared in alternatives to pet insurance, including CareCredit veterinary financing.