Sonnet Pet Insurance Review

Sonnet Pet Insurance review: who it's really for

By PetAssured Editorial Team Last reviewed : June 7, 2026 7 min read

Quick Answer

Sonnet is a digital-first Canadian insurer whose pet product is underwritten by Petline (the same underwriter behind Petsecure). It offers two tiers — Accident & Illness and Comprehensive — with up to 80% reimbursement, a fully online quote-and-buy flow, and notably includes annual dental cleanings on the comprehensive plan. The main caveats: it's a reimbursement model (no direct vet pay), reimbursement tops out at 80%, and it isn't available in every province.

Disclosure: PetAssured.ca earns affiliate commissions when readers buy through links on this page. This never changes our ratings — see How We Review.

Sonnet (a Definity company) built its reputation on simple, online-only home and auto insurance, and extends the same digital-first approach to pet insurance. Because the pet product is underwritten by Petline, the coverage mechanics will feel familiar if you've looked at Petsecure — the difference is Sonnet's streamlined online experience and its own plan structure. Here's what Canadian pet owners should know.

Coverage at a glance

FeatureSonnet Pet Insurance
Underwritten byPetline Insurance Company
Plan tiersAccident & Illness, and Comprehensive
Reimbursement rateUp to 80%
Annual payout capAnnual limit applies (plan-dependent)
Deductible structureAnnual
Direct vet payNo — reimbursement model
DentalIllness/trauma covered; annual cleanings on Comprehensive
ExtrasEmergency care, hospitalization, kennel/boarding fees, lost-pet advertising
Quote & purchaseFully online
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Pros and cons

✓ What works

  • Backed by Petline — one of Canada's largest, established pet insurance underwriters
  • Fully online quote-and-buy flow; easy to manage digitally
  • Comprehensive tier includes annual dental cleanings, which many insurers exclude
  • Useful extras: kennel/boarding fees and lost-pet advertising
  • Simple two-tier structure — less decision fatigue than highly customizable plans

✓ What doesn't

  • Reimbursement caps at 80% — no 90% option like some competitors
  • Reimbursement model only — you pay the vet up front, then claim
  • Annual payout is capped (no unlimited option like Trupanion)
  • Not available in every province — check eligibility for your location first
  • Fewer customization levers than a tiered plan like Pets Plus Us

Who it's best for

Our verdict

Bottom Line

Sonnet Pet Insurance is a solid, no-friction option for owners who want a simple online plan backed by a major underwriter (Petline), and the included dental — annual cleanings on the Comprehensive tier — is a genuine differentiator. The trade-offs are real, though: reimbursement maxes out at 80%, there's no direct vet pay, the annual payout is capped, and it isn't sold in every province. If you want the highest catastrophic ceiling, compare it against an unlimited-payout plan like Trupanion; if you want maximum customization, look at Pets Plus Us. Always confirm Sonnet is available in your province and compare a real quote before deciding.

Frequently asked questions

Who underwrites Sonnet Pet Insurance?
Sonnet's pet insurance is underwritten by Petline Insurance Company — the same underwriter behind Petsecure. Sonnet (a Definity company) handles the digital experience and distribution.
What reimbursement rate does Sonnet offer?
Sonnet reimburses up to 80% of eligible vet bills. There is no 90% option, which some competitors offer.
Does Sonnet cover dental?
Yes — dental work due to illness or trauma is covered, and the Comprehensive plan also includes annual dental cleanings, which many insurers treat as a wellness add-on or exclude entirely.
Is Sonnet Pet Insurance available across Canada?
No — it's offered in a subset of provinces. Confirm availability for your province on Sonnet's site before relying on it, since coverage areas change.
How does Sonnet compare to Petsecure?
Both are underwritten by Petline, so the coverage mechanics are similar. The differences come down to Sonnet's online-first experience and plan structure versus Petsecure's. Compare a real quote for your pet either way.