Most searches for the best expat health insurance are really two questions at once: whether, now that you live abroad or soon will, you need a health policy of your own at all, and if you do, what kind of cover the country you are moving to calls for. Neither has a general answer, because both turn on facts about your move: who employs you, what your new country lets a foreign resident use, what your residence permit asks for, and how far you would be from a hospital that could treat something serious. Once those facts are gathered, an FCA-authorised broker can turn them into quotes from a range of insurers during a single call. There is no charge for being introduced; this page's form is the way to ask.
This page is about the expat's own position: what changes when you stop living in the UK, the routes by which people abroad end up insured, and how a destination shapes the choice. It does not rank insurers, and it leaves the method for lining up quotes like for like to the page on how to choose international health insurance. Nor does it give a price: the indicative ranges on other pages of this site describe UK policies with the NHS behind them, and expat cover is priced around your country of residence, so a UK figure would not describe your policy.
Do expats need health insurance? Three facts decide it
Insurers use the word expat more narrowly than everyday speech does. Broadly, you are one for cover purposes once your ordinary home, for a year or longer, is in a different country from the health system you have been relying on. Your passport does not settle it, and neither does the word you use for the move: a two-year posting, a retirement somewhere warm and an open-ended spell of remote work all qualify, while six months away with a UK house and a UK GP to come back to looks more like a long trip, and is usually insured as one. If your plans sit between the two, describe them to the insurer as they are, since a policy written on the wrong basis may not pay.
Whether you need expat health cover of your own then comes down to three facts, each of which you can establish before you leave.
- Whether an employer already provides it. A company sending you abroad may include an expatriate health plan in the package. If it does, your question shrinks to whether the plan covers the people moving with you, where in the world it pays, and what becomes of it when the job ends.
- What the new country's public system does for someone newly arrived. Countries differ widely. Some let foreign residents join soon after they arrive, some only after a qualifying period or a record of contributions, and some expect foreigners to insure privately. The rules change, and the country's own health or social-security authority is the place to read them.
- Whether your residence permit makes insurance a condition. Where it does, the standard is whatever the immigration authority or consulate has written down, and a policy that falls short of it can hold up the application.
Put together, the answers usually point one way. No employer cover, no early access to public care, and a permit that asks for insurance: you need a policy before you can move at all. A generous employer plan that includes your family: the question may already be answered. The hard cases sit between those two, in a country whose public system will take you after a wait, or whose public hospitals you would rather not depend on for something serious. There the choice is yours, and it turns on how large a medical bill you could meet without help.
What changes when you become an expat, in the order it happens
Moving abroad is a change of residence, and three arrangements hang on residence: the private policy you hold in the UK, your claim on NHS hospital care, and your standing in the new country's system. They do not change on the same day, and the gaps between them are where people find themselves uninsured.
Before you leave: the UK policy you already hold
Three UK insurers' documents show how differently a home policy can treat care abroad, and the cost of expat cover quotes each clause in full in a table. For someone about to move, they matter in different ways. AXA Health's is the one that turns on residence. Its Personal Health membership handbook (October 2024, page 30) says two things: nothing towards treatment received outside the UK, with the Channel Islands and Isle of Man counting as inside it, and nothing towards any treatment if the member lives outside the UK. Aviva's Healthier Solutions terms and conditions, April 2025 issue, are shorter: page 24 allows no payment for treatment outside the UK. That is the April 2025 wording; Aviva reissued the document in March 2026, so look for the clause in the edition you hold, or ask the broker during the free call-back whether it still reads the same. WPA's is of a different kind. Its product information document for Complete Health, dated November 2025, offers on page 1 an optional Overseas Emergency Treatment benefit at two levels, each measured in days per trip, and leaves out the USA, its dependencies and winter sports resorts. A benefit measured per trip looks built for someone who sets out from a UK home and returns to it, not of someone who has left for good.
What this means in practice is a date. Have your insurer confirm, in writing, the day its cover will end once you have moved, and arrange for the replacement to begin that day rather than once you have settled in. Anything diagnosed between the two is likely to reach the new application as medical history, the problem worked through in the pre-existing conditions guide for international cover.
When you go: the NHS
Free NHS hospital treatment generally goes with living in the UK rather than with being British, so a permanent move generally changes what you can expect on a visit home, subject to exceptions that are specific and worth checking. GOV.UK's guidance for UK nationals on healthcare abroad is the place to settle your own case, and the NHS section of our expat cost guide sets out the general position. Until you have checked, do not plan on a flight home as your fallback for planned treatment.
After you arrive: the new country's rules
This is the part no UK source can settle for you, and the second and third facts above say where to take it. What matters here is the date on the answer: if a newcomer gets nothing from the public system for a period, that period is the stretch your own cover has to bridge, and for a short posting it may be the whole of your stay.
Health insurance for expats: the four routes, and who each suits
Medical insurance for expats comes in four shapes, and people often hold two at once. Which fits you follows from the three facts above far more than from any brand you may have heard of.
| Route | Who it tends to suit | The question that decides it |
|---|---|---|
| An expatriate health plan through an employer | Staff posted abroad by a company, often with their families | Whether it continues, converts or simply stops when the assignment does, and on what terms you could replace it then |
| An international plan you buy yourself | The self-employed, remote workers, retirees, and anyone whose employer provides nothing | Whether the insurer will write it for your country of residence and your age, and whether its area reaches everywhere you will spend time |
| A local private policy in your new country | People whose life will stay inside one country | Whether it takes foreign residents, whether it meets the permit's wording, and what, if anything, it pays abroad, including on a visit to the UK |
| The country's public system, alone or with a private top-up | Long-term residents of a country that lets foreigners join | When you become eligible, what you pay in, and what happens if you need treatment or an evacuation it does not provide |
Mixing routes is often sensible: a local policy for everyday care with an international in-patient plan for serious illness, say, or public membership plus separate evacuation cover. Whether a mix leaves a gap, or pays twice for the same thing, is in the wordings, so read them side by side before committing to either. What each route tends to cost, and what the cheaper choices give up, has its own page on keeping the cost of cover abroad down.
Retiring abroad adds one consideration of its own. An upper age for joining is common among international insurers, and renewals tend to get dearer with age, so a plan bought at sixty-five is worth choosing as though you might keep it for twenty years.
The second route is where a broker is most useful, because insurers build their expat health insurance plans differently and a broker can put one specification to several of them at once. Weighing a local policy or an employer's plan as well? Note it on this page's form, and the international quotes can then be read against it.
UK expats, US expats, and expats coming to the UK
Where you come from matters less than a passport might suggest, since insurers set expat terms by your country of residence; what it does change is what you leave behind, and which country you would fly to if you wanted treatment at home.
UK expats. The question that is particularly yours is whether you want the UK inside your area of cover, so that private treatment on a visit home stays open, and whether a plan caps the time you can spend in Britain each year. A British expat who expects to come back eventually should also think about the return: a UK policy bought then will generally take account of anything diagnosed while you were away.
US expats. Americans abroad meet the same international market, and some plans are marketed chiefly to them. The decision that weighs most is whether the area should take in the United States, usually the costliest area to add and often the place an American would most want to be treated. What becomes of any US-side cover or entitlement once you live abroad is a matter of US rules, which this UK site does not set out; ask the scheme concerned.
Expats coming to the UK. For someone moving here, the starting point is the UK's own system. What a visa requires of you, and what it entitles you to use, is set by the immigration and NHS charging rules rather than by any insurer, and our UK visa guide covers that ground, including where the immigration health surcharge fits. Whether to add UK private cover once you are living here is then the same decision any UK resident makes.
Expat health insurance in Costa Rica, Bali, Cambodia and elsewhere: what to check
More than anything else, the searches behind this page name particular countries: Costa Rica, Panama, Ecuador, Belize, Mexico, the Dominican Republic and Uruguay; Bali and Cambodia, and Asia generally; Mauritius; Albania. Each sets its own rules and changes them, so what Panama asks of a new resident is best read on Panama's official sites, not in a summary. What does carry from country to country is the set of questions, and where to take each one.
| Question | Where to take it |
|---|---|
| Does the residence permit require health insurance, and to what standard? | The country's immigration authority, or the consulate dealing with your application. Get the requirement in writing. |
| Can a foreign resident use the public system, from when, and at what cost? | The national health ministry or social-security body. |
| Is there a local private insurance market open to foreigners? | Insurers and intermediaries operating in that country. Check that any firm you use is authorised in that country. |
| Where would serious treatment actually happen? | GOV.UK's foreign travel advice for the country, which includes health information, is a reasonable place to start; people already living there are another. |
| Which area of cover does the country fall in? | Each insurer, since every one draws its own map; a broker quoting several will see the differences. |
The fourth question is the one most easily skipped, and it can change what you are buying. If the honest answer is a hospital in another country, medical evacuation stops being an optional extra and becomes the main reason for the policy, and the plan's terms for ordering a move, and for where it takes you, matter more than its in-patient terms. Bali shows a different trap: it is an island in Indonesia, and insurers generally price and underwrite by country, so the rules that apply are Indonesia's and the area of cover is wherever Indonesia sits on the insurer's map. Mexico and the Caribbean raise the same question of which region an insurer files them under, and the only safe answer is each insurer's own.
The residence-permit requirement, once you have it in writing, is the most useful single document you can hand a broker. Have it to hand when you send this page's form, so that each quote can be tested against it before you pay.
Expat health insurance questions, answered briefly
What is the best expat health insurance?
No single plan is best for everyone. The best expat health insurance plan for you is the one that fills the gap your employer, your new country's public system and your residence permit leave, in the places you will actually spend time. Setting candidates against each other fairly is explained on how to choose international health insurance.
How do expats get health insurance, and what do most of them do?
By one of the four routes above. Broadly, the choice follows the job: people posted by an employer tend to rely on its plan, while those who move on their own buy an international or local policy, or join the public system where allowed, and many combine two.
What is an expatriate health plan?
The term is used in two ways. In the narrower sense it is a group plan an employer provides for staff working abroad, sometimes with their families; loosely, it means any international health insurance bought by someone living outside their home country. Either way, it pays for treatment across whatever region of the world the policy names, and is written against the country where you live.
Can expats get health insurance in Costa Rica, and how?
Costa Rica's own rules say what a resident must carry and what a foreign resident may use, so the five questions above, put to the bodies named, are the way to find out, starting with the immigration authority. Whether an international insurer will write cover for a Costa Rican resident of your age and health is what a quote shows; with both answers in hand, compare the international and local options against what remains.
Does UK health insurance for expats exist?
Not from Aviva's, AXA Health's or WPA's UK policies. Aviva's and AXA Health's pay nothing for treatment abroad; AXA Health's goes further and pays nothing for a member who lives abroad; WPA's is a trip benefit for emergencies, measured in days. Where a UK insurance group also has an international arm, that arm's product is a different contract from the UK policy, with its own terms.
Is a local policy, such as a Mexican insurer's, enough for an expat?
Possibly, if your life stays in that country. A local policy is sold for treatment in that country, so what it would pay anywhere else, a visit to the UK included, is something to ask it directly. Before relying on one, ask whether it accepts foreign residents, whether it meets the residence permit, and what happens if you need treatment it cannot provide locally.
What about Partena, Sanitas or Regency for Expats?
Who is covered and for what varies by plan, so ask the broker what to put to each of them during a free call-back. With any provider, ask first whether the plan is local, paying in one country, or international, paying across an area of the world, because that decides which of the questions on this page apply.
Can I buy expat health insurance after I have moved?
Generally yes: international insurers write cover for people already living abroad, not only for those about to leave. What waiting costs is underwriting rather than access, because anything that arises in the meantime joins the history the new insurer assesses.
Settle the three facts from the top of this page before asking for a price: what your employer provides, what your new country gives a newcomer, and what your residence permit asks for. With those, your destination and everyone moving with you entered on this page's form, a broker has what it needs to price the gap that is left.