It stops being useful, and in at least one case the policy ends entirely.

What the policy documents actually say

AXA Health is explicit: it does not cover treatment received outside the UK, Channel Islands or Isle of Man, and does not cover you at all if you live outside the UK — you are asked to call about an international plan instead. Aviva states simply that it does not pay for treatment outside the UK. The Exeter requires the legal right to reside in the UK and physical residence for at least 180 days of each policy year.

WPA is the exception, offering overseas emergency treatment as a paid option at two levels — 35 or 70 days per trip, capped at 180 days a year and either £250,000 or £500,000 — while excluding the USA and its dependencies and winter sports resorts.

A UK policy is a UK product. Emigrating, or spending more than half the year abroad, generally means an international medical policy rather than an adjustment to the one you have.

Residency conditions bite before emigration does. The Exeter's requirement to live in the UK for at least 180 days of each policy year catches long sabbaticals, extended family visits and people splitting the year between two countries, none of whom would describe themselves as having moved abroad.

If you are going for a fixed period and intend to return, the question to ask is whether the policy can be suspended rather than cancelled. Cancelling and rejoining later usually means fresh underwriting, and anything that developed while you were away becomes a pre-existing condition on the new policy. That is a far more expensive outcome than the premiums saved during the gap.

Questions to put to the insurer or broker

  • How many days abroad does the policy tolerate?
  • Is emergency treatment abroad covered, or nothing at all?
  • Does moving invalidate the policy or just suspend claims?

Related questions

Sources

  • Source: Aviva — Healthier Solutions Terms and conditions (2025-04), read 4 September 2026.
  • Source: AXA Health — Personal Health membership handbook, October 2024, read 4 September 2026.
  • Source: The Exeter — Private Medical Insurance — Insurance Product Information Document (Health+) (2025-10), read 4 September 2026.
  • Source: WPA — Private Medical Insurance — Insurance Product Information Document (Complete Health) (2025-11), read 4 September 2026.

The limit behind every answer here

None of this reaches a condition you already have. Cover is written for problems that arise after it starts, so anything you have symptoms of when you apply is excluded — permanently under full medical underwriting, or until a symptom-free period has passed under a moratorium. Chronic conditions are excluded by every insurer whose wording we hold. Figures quoted come from current policy documents and change at renewal, so check the document you are actually offered.

Get a free quote — a specialist broker calls you back, free and with no obligation.

Or see how UK cover compares and the FCA-authorised broker list.