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Are Extended Warranties Worth It? The Math, the Margins, and the Rare Exceptions

By Rowan Keller·Published November 8, 2026

Has been buying open-box and returned stock for over a decade, and built Warehouse Watcher to stop losing track of it.

For most products, no. Extended warranties are priced so the house wins: Consumer Reports has reported that retailers keep roughly 40 to 80 percent of what you pay for a protection plan as profit and commissions, a margin they never see on the product itself. Meanwhile most products either fail inside the free manufacturer warranty, which costs you nothing, or after the paid plan has expired. And the extra year the plan is selling you is a year many credit cards already add for free. So, are extended warranties worth it? This guide does the math by category, shows you the coverage you probably already own, and names the rare cases where paying is genuinely rational.

The short version: an extended warranty is insurance sold at the moment you are least able to price it, by the party who knows the failure rates and you do not. Once you see the numbers from their side of the counter, the pitch loses its power.

Follow the margin: why the pitch is so relentless

Ask why every cashier, website checkout, and email receipt pushes the plan so hard. It is not concern for your television. Plans are among the most profitable things a retailer sells: Consumer Reports puts the retailer's profit margin on extended warranties at roughly 40 to 80 percent, compared with the thin margins on electronics and appliances themselves, and sales staff commonly earn commissions on top.

Think about what that margin means. If a store can hand half or more of your plan payment to profit and commissions, pay administrators, and still make money, the expected cost of your repairs must be a small fraction of what you paid. The plan is not priced around your risk. It is priced around your anxiety, at the exact moment the anxiety peaks: right after you have committed to an expensive purchase.

The failure math, by category

Products fail on a curve: lemons die early, inside the manufacturer's free warranty, and everything else mostly wears out years later, after paid plans expire and often outside what they cover, since wear and tear is a standard exclusion. The middle window, the one you are paying to cover, is the quietest period in a product's life. Category numbers from Consumer Reports' reliability surveys show how quiet:

• Televisions: roughly 9 percent need a repair in the first three years. A plan costing 15 to 25 percent of the TV's price insures a one-in-eleven risk.
• Phones: failure rates run higher, around 26 percent over three years in Consumer Reports data, but the classic phone disaster is a cracked screen, and accidental damage is excluded from standard extended warranties. Covering it requires a separate, pricier plan.
• Appliances: reliability varies sharply by type. Refrigerators with in-door ice makers have historically been among the most repair-prone major appliances, while simpler models run for a decade or more untouched.
• Laptops and computers: among the electronics most likely to need service in the first few years, which is exactly why their plans are priced highest.

Against those odds, plans typically cost 10 to 50 percent of the item's price. Paying 20 percent of the price to insure against a 9 percent chance of a repair that itself costs less than the item is a bet you lose in the long run, repeated across every appliance and gadget you own.

The warranty you already have: your credit card

Before paying for an extra year of coverage, check the card in your wallet. Many Visa, Mastercard, and American Express cards automatically extend the manufacturer's warranty by up to one additional year on eligible purchases charged to the card, typically covering repairs up to $10,000 per item. It costs nothing, because it is a standard card benefit, and it covers the exact window most retail plans are selling.

The requirements are simple but strict: the purchase usually must be paid for in full with the card, and you will need the receipt and the original warranty if you ever claim. Some cards have dropped the benefit in recent years, so read your card's current guide to benefits once, today, and note which of your cards still includes it. Then route every major purchase through that card. Congratulations: you now own the most-sold part of the extended warranty, free.

Retailers sometimes sell you the same year twice in another way. Costco, for example, extends the warranty on televisions, computers, and major appliances to two years at no extra charge, which our Costco TV buying guide covers in detail. Buying from a retailer who extends coverage free beats paying a third party for the identical months.

Self-insure: the repair fund beats the plan

The strategy that beats the plan is boring: self-insure. Every time you decline a protection plan, move the amount it would have cost into a savings bucket labelled repairs. A household that does this across its TVs, appliances, phones, and laptops builds a fund worth thousands within a few years, and that fund pays for any repair, on any product, with no exclusions, no claim forms, and no deductible. Money the fund never spends stays yours. Money a warranty company never spends stays theirs.

The odds back the boring strategy. Consumer Reports has found that about 55 percent of people who bought extended warranties never used them at all during the coverage period. The typical buyer is not insuring a likely repair. They are making a donation to a very profitable product line, one checkout at a time.

The rare cases where paying is rational

Honest math has exceptions. Paying for coverage can be rational when several of these line up at once:

• The item is expensive, mission-critical, and has no backup: the laptop you earn your living on, where a week in a repair queue costs more than the plan.
• The specific model has a documented reliability problem and you are buying it anyway for other reasons.
• The plan includes accidental damage, the price is a modest fraction of a screen or board replacement, and you have the cracked-screen history to justify it.
• You genuinely cannot absorb a surprise replacement cost right now, and the plan converts it into a known monthly amount. That is buying cash-flow stability, not value, and it is a legitimate choice.

One more move often beats both the plan and full price: buy the product open-box or on a real sale, and bank the difference in the repair fund. A discount captured up front is worth more than hypothetical coverage later, and Amazon warehouse deals explained shows how open-box pricing works if you have never used it. The verdict for everything else stands: decline the plan, keep the receipt, charge it to the card that extends the warranty, and let the repair fund grow.