Extended warranties: the math says skip most of them
For most products, an extended warranty is a bad bet — a large markup to insure a loss you could comfortably self-insure.
The verdict up front
An extended warranty is just insurance on one appliance or gadget — and priced like a product that has to fund a sales commission. Run the expected-value math (use the calculator below) and it's negative for most purchases: the premium is far more than the failure probability times the repair cost. You're paying for peace of mind at a steep markup.
Why the math rarely works
Insurance is only worth buying when the loss would be financially catastrophic relative to your resources. A $180 warranty on a $900 appliance doesn't clear that bar — if it dies, you can replace it. The retailer knows most items won't fail within the warranty window, and prices the plan to profit on that. The loss ratio — claims paid divided by premiums collected — on retail extended warranties is notoriously low, which is another way of saying buyers lose on average.
You may already be covered
- Manufacturer warranty — covers defects and early failures for a defined period.
- Provincial sale-of-goods / consumer-protection law — in many provinces, goods carry an implied warranty of durability, so a product that fails unreasonably early may be the seller's problem regardless of any paid plan.
- Quebec's legal warranty is the strongest: under the Consumer Protection Act, goods must be durable in normal use for a reasonable time — a free, built-in protection that often makes the paid warranty redundant.
- Credit-card purchase protection — many cards extend the manufacturer's warranty automatically when you pay with the card.
When it might actually make sense
- A genuinely fragile, expensive item where a single repair would blow your budget.
- A plan with unusually good terms — low or no deductible, accidental damage included, easy claims.
- A product with a known reliability problem out of proportion to its price.
Outside those cases, self-insure.
Do this instead
Skip the plan and put the premium in a repair fund. Across all the warranties you'd otherwise buy, the money you keep will comfortably cover the occasional repair — that's literally how the warranty seller profits, except you keep the margin. Model the trade-off with the Deductible Optimizer, which uses the same self-insurance logic.
Run the expected-value math
Defaults are educational assumptions (or sourced industry framing) — change every field. EV = P(claim) × E[payout] − annual premium.
-$168
Negative = you pay more than you get back in expectation
16.0%
E[payout] $32 / premium
Illustrative industry loss-ratio framing: 20.0% (content constant — not your personal odds).

Robert noticed…
- Every parameter is editable. Defaults on teardown pages are sourced or marked ASSUMPTION in content — never treat them as personal odds.
- Implied expected recovery is under 40% of premium — common for add-on products with low claim rates and high loading.
Frequently asked questions
- Are extended warranties worth it?
For most products, no. The price is mostly commission and profit, the manufacturer warranty and consumer-protection laws already cover early failures, and the loss you're insuring is one you could absorb. Self-insuring wins on average.
- Does my credit card extend warranties?
Many cards automatically extend the manufacturer's warranty (often by up to a year) and add purchase protection when you pay with the card. Check your card's benefit guide before buying a store plan.
- What is the legal warranty in Quebec?
Under Quebec's Consumer Protection Act, goods must be durable in normal use for a reasonable time — a built-in, free protection that often makes a paid extended warranty redundant.
- When should I buy the protection plan?
Only for a fragile, expensive item where a repair would genuinely hurt your finances and the plan's terms (low deductible, accidental damage, easy claims) are unusually good.
- How do I self-insure instead?
Set aside what you'd have spent on warranties into a small repair fund. Over many purchases it covers the rare failure and you keep the seller's margin.
Sources
- Office de la protection du consommateur (Quebec) — legal warranty
- Canadian provincial consumer-protection / sale-of-goods legislation
- FCAC — credit card purchase protection
Educational only — not financial advice. Run your own numbers with the calculator below.
Educational only — not insurance advice, and no products are sold here. Robert is a mascot, not a licensed advisor. See our disclaimer.
