Health insurance in Thailand for expats: local, international and visa cover

Why insurance matters more than usual in Thailand

Private hospital care in Thailand is widely used by foreign residents, and it is billed in full. The UK government's travel advice says all hospitals require a guarantee of payment before treating patients, and the Australian Embassy notes that hospitals often need to confirm insurance before treatment, even in an emergency. Without that confirmation, you may be asked for a cash deposit on admission and regular payments during your stay.

Public hospitals are cheaper, but they are not free for foreigners, waits are longer and English can be limited outside the doctor's consulting room. Many expatriates therefore treat a private health policy as a practical necessity rather than an extra, particularly for inpatient care, surgery and cancer treatment, where bills grow quickly.

Travel insurance is a different product. It is designed for trips of limited length and usually excludes routine and ongoing care. If you live in Thailand, or stay for many months a year, look at a health insurance policy instead, and check whether any travel policy you already hold allows long stays at all.

Local or international cover?

Local policies are sold by insurers in Thailand and priced for care in Thai hospitals. They tend to cost less, pay out in baht and are often well known to hospital billing teams. Limits are usually set per condition, per admission or per year, and some plans cover inpatient care only, with outpatient visits as an optional extra. Policies may also have an upper age limit for new applicants, which matters if you are planning to retire in Thailand.

International policies are sold by insurers that cover expatriates in many countries. They are usually more expensive but can include cover outside Thailand, including your home country, and often have higher annual limits. They may also include medical evacuation, which can matter if you live somewhere without a large hospital nearby. The UK government's guidance specifically mentions cover for unexpected medical evacuation as part of appropriate insurance.

Some people combine the two: a local inpatient plan for the hospitals they use most, alongside savings or a separate plan for outpatient care. Whichever route you take, compare policies on the same terms: the annual limit, any per-condition or per-day caps, outpatient cover, the deductible or excess, and the area of cover.

If you are employed in Thailand, your employer may enrol you in the national social security scheme, which gives access to care at a registered hospital. Find out which hospital you are registered with and what it covers before deciding how much private cover you need on top.

What policies commonly exclude

Every policy is different, so read the exclusions section before you buy. The most common exclusion is for pre-existing conditions: illnesses or symptoms you had before the policy started. Some insurers exclude them permanently, some exclude them for a waiting period, and some will cover them for a higher premium. The UK government notes that insurers may refuse claims linked to undisclosed pre-existing conditions, so declare your medical history fully, even if you think it is minor.

Other frequent exclusions or limits include maternity care (often with a waiting period of a year or more before cover starts), cosmetic treatment, routine dental work, fertility treatment, health check-ups and vaccinations, and mental health care, which may be capped at a lower amount than physical illness. Injuries from riding a motorcycle without the correct licence or a helmet, or from activities the policy lists as hazardous, are also commonly excluded.

Look out for waiting periods at the start of a policy, during which some conditions are not covered, and for annual renewal terms. Ask whether the insurer can add new exclusions at renewal after you have made a claim, and whether the policy can be continued as you get older.

Direct billing and guarantees of payment

Direct billing means the hospital sends the bill straight to your insurer, so you pay little or nothing at discharge apart from any excess or items the policy does not cover. For an admission, the hospital normally asks the insurer for a guarantee of payment before or soon after treatment begins.

Before you need care, find out which hospitals your insurer has direct-billing arrangements with, whether that applies to outpatient visits as well as admissions, and what the hospital needs from you: usually your passport, your policy card and the insurer's 24-hour assistance number. Without direct billing you pay the hospital yourself and claim back afterwards, which can mean a large deposit up front.

Whichever way you pay, ask for an itemised bill and a medical report in English before you leave the hospital. Insurers usually need both to settle a claim, and they are much harder to obtain once you have gone home.

Insurance and long-stay visas

Some Thai visas make health cover a condition of entry or extension. The Royal Thai Embassy in Madrid's page on the Non-Immigrant O-A (long stay) visa says applicants need a policy covering their whole stay that expressly covers general sickness and COVID-19, with minimum cover of USD 100,000 or THB 3,000,000. Applicants must also provide a unified certificate acknowledged by the insurer or relevant foreign agency. If insurers refuse you, the same page allows a rejection letter plus proof of a THB 3,000,000 bank deposit held for the past two months, separate from the THB 800,000 deposit for daily expenses.

For the Long-Term Resident (LTR) visa, the Board of Investment lists three ways to meet the health requirement: health insurance covering at least USD 50,000, receiving social security benefits in Thailand, or keeping at least USD 100,000 in a bank account for at least 12 months. Cover must be maintained for the length of the visa.

If you want a Thai policy for an O-A application, the Thai General Insurance Association runs a long-stay insurance site with a list of participating companies. Visa requirements change, and different embassies word them differently, so confirm the current rules with the embassy or office handling your application before buying cover, and check that the policy document states the required amounts clearly.

Frequently asked questions

Sources

1. GOV.UK — Healthcare and medical services in Thailand
2. GOV.UK — Thailand travel advice: Health
3. Australian Embassy Thailand — Medical information
4. Royal Thai Embassy, Madrid — Health insurance requirements for Non-Immigrant O-A visa applicants
5. Board of Investment — Long-Term Resident (LTR) visa
6. Thai General Insurance Association — Health insurance for long-stay visas