Is Travel Insurance a Rip-Off? What the Economics Actually Says

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Here’s an uncomfortable fact the industry won’t lead with: on average, travel insurance is a losing bet. For every ¥100 of premiums collected, insurers pay out well under ¥100 in claims — the rest covers their costs and profit. In pure expected-value terms, you should expect to lose money on it. So is it a rip-off?

No — and the reason is the most interesting idea in the economics of insurance. A product that’s a bad bet on average can be an excellent decision for you, because you’re not buying an investment. You’re buying the removal of a small chance of catastrophe. Understanding when that trade is worth it — and when insurance really is a waste — is what separates a smart buyer from a mark.

Expected value vs. expected utility

The maths that makes insurance look like a rip-off is expected value: multiply each outcome by its probability. Since insurers must pay their own costs out of your premium, the expected payout is always less than the price. By that logic, no one should ever buy any insurance.

But people aren’t expected-value machines; they’re risk-averse, and the economist Daniel Bernoulli explained why nearly 300 years ago. What matters isn’t the money itself but its utility — and money has diminishing marginal utility. Losing ¥3,000,000 to an overseas hospital bill doesn’t hurt a thousand times more than losing ¥3,000; it can be genuinely ruinous. Paying a small, certain premium to erase a rare, devastating loss can raise your expected utility even while it lowers your expected wealth. That’s not irrational — it’s the textbook rational response to a large downside. Insurance converts a small unpredictable catastrophe into a small predictable cost, and for most people that trade is worth paying a margin for.

The rule that falls out of it

This gives a clean rule for when insurance is smart and when it’s a rip-off:

Insure what would hurt. Self-insure what wouldn’t.

• Worth it: losses that are rare but large enough to hurt — emergency medical care abroad, evacuation, a hospital stay. This is where a policy earns its margin many times over, because the downside is exactly the kind you can’t comfortably absorb.
• A rip-off: small, affordable losses you could just eat — a delayed bag, a missed ¥4,000 museum booking, a cheap phone. Paying an insurer’s margin to cover a loss you could shrug off is precisely the negative-value bet the critics describe.

Most “travel insurance is a scam” takes are really objections to the second category — the padded add-ons and low-value trip-cancellation cover sold on refundable bookings — dressed up as an objection to the whole idea.

Why insurance markets are quirky: two more ideas

Two famous concepts explain the fine print that makes people feel cheated.

Adverse selection (George Akerlof’s “market for lemons”): the people keenest to buy insurance are often the riskiest, so insurers protect themselves with exclusions, waiting periods, and pre-existing-condition rules. That’s why the cheap policy that “covers everything” usually doesn’t when you read it.

Moral hazard: once insured, people take more risk, so insurers cap payouts and require deductibles. Neither is a scam — they’re the market’s defences against being gamed — but they’re why the burden is on you to read what’s actually covered before you rely on it.

When your credit card makes insurance a genuine rip-off

There’s one case where buying a standalone policy really can be throwing money away: when you already own the cover. Premium credit cards often bundle trip-delay, rental-car, and sometimes emergency-medical benefits. Buying a duplicate policy for risks your card already handles is paying twice. The catch is that card cover tends to have lower limits, strict activation rules, and quiet exclusions — so the honest move is to read your card’s benefits guide first, then insure only the gaps (usually the big medical and evacuation numbers).

The honest verdict

Is travel insurance a rip-off? As a bet, always — by construction, you expect to lose money on it. As a decision, it’s one of the most rational purchases you can make, provided you use it for what it’s for: transferring the rare, ruinous risks you can’t absorb, not the small ones you can. Buy the boring medical-and-evacuation cover, skip the padded extras, check what your card already does, and you’re not being ripped off — you’re doing exactly what the economics recommends.

What this means for your trip

If you want the practical version, we’ve written it up separately: is travel insurance worth it? walks the decision by traveller type, and our travel insurance comparison lines up the main providers on what actually matters — medical limits, evacuation, and exclusions. When you’re ready to price it for your own dates, you can get a quick quote and sanity-check it against your credit card’s cover before you buy.

Frequently asked questions

Sources & further reading

• D. Bernoulli (1738), “Exposition of a New Theory on the Measurement of Risk” — the origin of expected-utility theory
• G. Akerlof (1970), “The Market for Lemons: Quality Uncertainty and the Market Mechanism” — adverse selection
• K. Arrow, “Uncertainty and the Welfare Economics of Medical Care” — insurance, risk, and moral hazard

Explanatory analysis, not financial or insurance advice. Coverage terms vary; always read the policy and your card’s benefits before relying on either.

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