Decision Guide

When's the best age to get pet insurance?

Last reviewed : May 28, 2026

Quick Answer

The best age to get pet insurance is as young as possible — ideally between 8 weeks and 6 months. Premiums are lowest, pre-existing conditions haven't accumulated, and the policy has the longest possible runway to actually pay out. Every month you wait increases the chance that something gets diagnosed and becomes a lifetime exclusion.

Why earlier is almost always better

Pet insurance economics work against late enrollment in three specific ways:

1. Pre-existing conditions stack up

Every time your pet sees the vet, the visit goes into the medical record. Anything documented — diagnosed, treated, or even suspected based on symptoms — becomes pre-existing if you enrol later. Allergies, occasional limping, early signs of dysplasia, ear infections, dental disease — all of it can be excluded.

2. Premiums rise with age

Most insurers price premiums by age band. A 6-month-old puppy might quote at a fraction of what a 7-year-old version of the same dog quotes at. The earlier you lock in, the lower your starting premium — though premiums still increase as your pet ages on the policy.

3. Enrollment age caps

Some Canadian insurers won't issue new policies to pets above a certain age (often 10–14 years). If you wait until your dog is 12 to start shopping, your options shrink dramatically.

Age-by-age breakdown

Puppies and kittens (8 weeks – 6 months)

Best time to enrol. Premiums are at their lowest, your pet has had limited vet exposure, and the policy will cover the full range of conditions that might emerge over a lifetime.

Note: some policies have minimum enrollment ages (often 7–8 weeks). Check before assuming you can enrol a brand-new puppy.

Young adults (6 months – 3 years)

Still excellent. Most adult dogs and cats this age have minimal documented history. The main risk: any vet visits during this period (e.g. an ear infection, a soft-tissue injury) could create future exclusions if they recur.

Adults (3 – 7 years)

Worth doing — but with eyes open. By this point, many pets have something on the record. Get a careful pre-enrollment vet exam to understand what will and won't be covered. Comprehensive coverage is still valuable for the events you can't predict (cancer, accidents, sudden illness).

Seniors (7+ years)

Harder but not impossible. Some Canadian insurers will still enrol, though premiums are higher and exclusions are typically more extensive. For senior pets:

What about senior pets with no prior vet visits?

If you're adopting an older pet who genuinely has no documented medical history (rescues, for example), enrol immediately after the initial vet exam. You'll capture whatever's still insurable before it gets documented in a future appointment.

Common reasons people delay (and why they're wrong)

"I'll wait until something happens."

You can't insure a fire that's already burning. Once a condition is diagnosed, it's excluded forever — that's the entire point of insurance.

"My pet is young and healthy, so I don't need it yet."

That's exactly when insurance is cheapest and most valuable. You're paying for the unknown future, not the current state.

"I'll save the premium money in a savings account instead."

A legitimate alternative — but only if you actually do it, consistently, and don't touch the fund. See our insurance vs savings comparison.

How to actually enrol

  1. Get a current vet exam — establishes a clean baseline
  2. Get quotes from at least two insurers within the same week
  3. Read each policy's pre-existing definition carefully
  4. Enrol — the policy starts the day you pay, but the waiting period begins from that date