Is Pet Insurance Worth It for a Senior Dog?

For most senior dogs, buying insurance for the first time has limited value, because any condition your dog already has when the policy starts — arthritis, a heart murmur, a lump, anything already diagnosed — is permanently excluded from that policy. That's standard across the industry, not one insurer's fine print. A new policy on an older dog mainly covers new, unrelated problems, which narrows what it's actually useful for as a dog ages.

The average dog accident-and-illness premium is $749.29/year ($62.44/month) (NAPHIA 2025 State of the Industry Report, 2024 data). You'll often see claims that premiums rise 20-30% a year as a dog ages — we could not find a primary data source for that figure. Treat it as industry folklore, not a cited statistic.

Why "expected bill" only counts new conditions

Anything your dog is already dealing with won't be paid out under a new policy, so including it in "expected annual vet bill" would overstate what insurance actually buys you. This tool doesn't check that for you — it's on you to leave pre-existing conditions out of the number you enter.

Source

NAPHIA, 2025 State of the Industry Report (2024 premium data). Seenaphia.org/industry-data. Checked 2026-08-15.