The most expensive mistake when retiring abroad is not the choice of policy, it is the order of operations. Buying after you move sharply reduces the insurers open to you, cancelling home cover too early closes the door back, and leaving the visa requirement until last forces a rushed decision. Here is the sequence that avoids all three.
Step 1, before anything else: check whether you are insurable
Two facts decide everything and take an hour to establish: your age at the intended start date, and your medical history over the last ten years. They determine which insurers will accept you, and therefore which options actually exist. Until that is settled, comparing premiums is meaningless.
Step 2: buy while you are still resident at home
A large share of international contracts require the purchase to be made from your country of residence. Buying before departure, with cover starting on moving day, keeps the whole market open. Waiting until you are settled narrows it to a subset, often local. This is where most people lose options without noticing.
Step 3: decide what happens to your home cover
Cancelling outright gives up the way back. Depending on your country and scheme, there are mechanisms that preserve your rights for a fraction of the cost of real insurance and let you return without fresh medical underwriting. The question is not the monthly cost but the real probability that you return one day, for health or family reasons.
Step 4: match the policy to the visa
Every residence status sets its own thresholds. In Thailand the O-A visa requires 3,000,000 baht of cover and accepts a foreign insurer with an official certificate, while the O-X requires far lower amounts but insists on a locally approved insurer with no interruption. Choose the policy to fit the status you are applying for, not the other way round.
Step 5: plan for year two, not just year one
Renewals are often filed with a local authority that does not apply the consulate's rules. Ask at purchase: will this insurer be accepted at renewal? A no discovered eleven months later means changing policy at an age where acceptance is harder.
A realistic timetable
Six months out, confirm you are insurable and request quotes. Three months out, buy with cover starting on moving day and request certificates in the format the consulate wants. One month out, settle what happens to your home cover. It looks slow until an insurer takes five weeks to produce one document.
Frequently asked
Can I buy once I have arrived?
With some locally present insurers, yes. With many international ones, no: they require residence in your home country at the time of purchase.
Should I keep my home health cover?
Rarely as it stands: most stop covering once your main residence is abroad. Check the territorial clause before paying for another year.
At what age does insurance become hard to get?
Refusals start appearing around 60 with some local insurers and become general past 74 with international ones. Every year of delay narrows the field.
What if I move without cover?
Beyond the medical risk, the visa or its renewal can be blocked, and buying under time pressure on arrival rarely produces the best terms.