Travel Insurance Excess Explained (2026): Why the Cheapest Policy Can Cost You the Most

Two policies sit side by side. One is a few pounds cheaper. You buy it — and six months later, after a cancelled trip and a lost bag, you discover the “bargain” cost you hundreds more than the dearer one would have. The number that did it was buried on the schedule, in a column most people never read: the excess. Here is exactly what the excess is, how it quietly sets your premium, and why the lowest headline price is so often the most expensive policy you can buy.

What the excess actually is

The excess is the oldest lever in insurance. As the standard definition puts it, a deductible is “the amount paid out of pocket by the policy holder before an insurance provider will pay any expenses.” Claim for £X of covered loss and the insurer settles the balance above the excess; the excess itself is always yours. Claim for less than the excess and you get nothing — you simply absorb the whole cost.

Most policies carry two layers. The compulsory excess is “the minimum excess payment the insurer will accept” — a floor you cannot remove. On top of that you can choose a voluntary excess: an amount you volunteer to add on. The two are added together at claim time, and together they decide how much of any loss lands on you.

How a higher excess buys a cheaper premium

This is where the “bargain” is manufactured. Insurers price on risk, and every pound of excess you accept is a pound of risk they no longer carry. As the motor-insurance principle is usually stated: “to reduce the insurance premium, the insured party may offer to pay a higher excess than the compulsory excess demanded” — and because “a bigger excess reduces the financial risk carried by the insurer, the insurer is able to offer a significantly lower premium.” It also discourages small, fiddly claims, which cost insurers money to process.

So a high voluntary excess is a genuine tool: if you would never claim for a small loss anyway, you can trade a lower premium for a bigger excess and come out ahead. The false economy is setting it so high to win the price comparison that you could not actually afford to claim when something real goes wrong. A cheap premium you can pay and an excess you cannot is not cover — it is a policy you will be too poor to use on the day you need it.

Per claim — and per section

Two words in the small print do most of the damage. First, the excess is normally charged per claim (per incident), not once for the life of the policy. Three separate mishaps on one trip can mean three separate excesses.

Second — and this catches people hardest — a travel policy is not one pot of cover but a stack of sections: cancellation, medical and repatriation, baggage, personal money, and so on. Many policies apply the excess separately to each section. So a single bad day — a missed flight that forces you to cancel onward nights and a stolen daypack — can trigger the cancellation excess and the baggage excess at once, sometimes per person on the booking. The advertised “£X excess” is rarely the most you can pay; it is the most you can pay on one section.

The figures above are invented for illustration — real premiums and excesses vary by policy, insurer and traveller. But the shape is exactly right: the $20 you “saved” at purchase turned into $380 lost at claim time, because the excess bit twice.

“Excess waiver” add-ons

You can sometimes buy the excess back. An excess waiver (or excess-reimbursement) add-on refunds the excess after a valid claim, for an extra premium. It can make sense where excesses are high and stacked — but do the arithmetic, because paying every year to remove an excess you may never trigger is its own quiet leak. Note too that some insurers already waive parts of the excess in specific cases — UK guidance points out, for instance, that medical excess may be waived where a GHIC or EHIC is used in Europe. Read what you are actually being sold before you add it.

Why this matters doubly for a Himalayan trek

In Nepal the excess is only half the question — the other half is whether the policy covers the thing that will actually go wrong. A budget policy with a tempting premium is often built on a big excess and a hard exclusion for trekking above a certain altitude and for helicopter evacuation. That is the worst of both worlds: a mountain rescue can run into many thousands of dollars, and a policy that excludes altitude simply will not pay, however small the excess looks. Weigh the excess against the cover you genuinely need — high-altitude medical and helicopter repatriation first, a survivable excess second. For the mechanics of what a mountain policy must include, see our guide to what travel insurance actually covers in 2026 and the specifics of a helicopter rescue in Nepal.

Planning an Everest Base Camp or Annapurna Base Camp trek? Tell us your route and dates and we will tell you plainly what your policy must cover before you leave home — no upsell, just the checklist.

Cover photo: Mikhail Nilov via Pexels (Pexels License). Sources: Wikipedia (“Deductible”, “Vehicle insurance”); GOV.UK foreign travel insurance guidance. Figures marked illustrative are examples only and not real quotes.