- Thai hospitals generally want a guarantee of payment before treatment; without one, expect to pay a deposit or pay up front.
- Call your insurer's 24-hour assistance line as soon as you can, ideally before or on admission.
- Collect an English medical report, itemised bill, receipts, and any police report before you leave the hospital.
- Undisclosed pre-existing conditions, unlicensed motorbike riding and alcohol are common reasons claims are refused.
- Embassies cannot pay medical bills.
How hospital payment works in Thailand
The UK government's travel advice states that all hospitals in Thailand require a guarantee of payment before treating patients. The Australian Embassy notes that hospitals and doctors often need to confirm your insurance before treatment, even in an emergency, and that otherwise you may have to pay cash up front, with costs that can be very high.
In practice, a private hospital's international or insurance desk will ask for your policy details and contact your insurer or its assistance company. If the insurer accepts the case, it sends the hospital a guarantee of payment (often called a GOP or GoP), confirming that it will settle the bill directly up to a stated amount. Without a GOP, self-paying patients are usually asked for a deposit on admission, and the UK guidance notes that uninsured patients may receive regular, sometimes daily, invoices.
Even with full cover, the UK government's guidance on being in hospital abroad warns that you will often have to pay up front for some care, so carry a credit card with enough available credit.
On admission: the first calls
In an emergency, get treatment first: call 1669 and go to the nearest suitable emergency department. As soon as it is practical, you or someone with you should call your insurer's 24-hour emergency assistance number; the UK guidance says your insurer should have one. Give the hospital's name and contact details, your policy number, and a brief description of what happened.
Ask the hospital's international or insurance desk to send the insurer the medical information it needs to issue a GOP. The insurer may ask the hospital for an initial medical report and a cost estimate. Keep a note of the names of people you speak to and any case or reference numbers.
If the insurer will not issue a GOP straight away, ask what it needs and how long it will take. You may need to pay a deposit and claim it back later. Ask the hospital for a receipt for any deposit.
For planned care, such as a scan or follow-up surgery, contact your insurer before treatment. Many policies require prior approval for non-emergency procedures and admissions.
The documents to collect
Insurers usually ask for: a medical report in English with the diagnosis, the treatment given and the dates; an itemised bill (not just a total); original receipts for anything you paid; prescriptions and pharmacy receipts; a discharge summary if you were admitted; and copies of any imaging or test results. The UK guidance notes that receipts and doctors' notes are needed for any claim.
Depending on what happened, you may also need a police daily report (for accidents and thefts), proof of travel dates such as flight bookings or boarding passes, and a copy of your passport. Ask for everything before you leave the hospital: it is much harder to get reports and itemised bills once you are home.
Keep originals safe and send copies where your insurer allows; photograph every document as a back-up.
Why claims are refused
The most common problems are avoidable. Insurers may refuse claims linked to pre-existing medical conditions that were not declared when you bought the policy, so declare everything and keep the confirmation. The UK government warns that riding a motorbike or scooter without a valid licence could invalidate your travel insurance, and many policies exclude injuries linked to alcohol or drugs, or to activities such as scuba diving beyond a certain depth unless you bought extra cover.
Other issues include not contacting the insurer before planned treatment, claiming after the policy's deadline, missing documents, and treatment the insurer considers not medically necessary. Read the policy's claims section before you travel, and note its time limits.
Note that Thailand has no reciprocal healthcare agreement with the UK, so a UK GHIC is not accepted there. The UK and Australian governments both state that they cannot pay medical bills; the Australian Embassy suggests that uninsured travellers may need to ask family or friends to send funds.
If you disagree with the insurer
Ask the insurer to put any refusal in writing, citing the specific policy clause, and use its internal complaints process. If that does not resolve it, the next step depends on where the policy was sold: for example, UK customers can usually escalate to the Financial Ombudsman Service, and Australian customers to the Australian Financial Complaints Authority.
For policies issued by an insurer licensed in Thailand, including many long-stay visa health policies, the regulator is the Office of Insurance Commission (OIC), which accepts complaints and runs the 1186 hotline.
Before you leave the hospital
- Your insurer's case or reference number and the name of your contact.
- Medical report in English with diagnosis, treatment and dates.
- Itemised bill and original receipts, including any deposit.
- Discharge summary, prescriptions and copies of test results or imaging.
- Police daily report, if the claim relates to an accident or theft.
- Photos of every document as a back-up.
Frequently asked questions
What is a guarantee of payment?
A written confirmation from your insurer or its assistance company to the hospital that it will pay the bill directly, up to a stated amount. Thai hospitals generally want one before treatment.
Do I have to pay up front at a Thai hospital if I have travel insurance?
Sometimes. If your insurer issues a guarantee of payment, the hospital bills it directly. If not, or while it is being arranged, you may need to pay a deposit or pay and claim back later.
What documents do I need for a travel insurance claim?
Typically an English medical report, itemised bill, original receipts, discharge summary, prescriptions, proof of travel and, for accidents or thefts, a police report. Check your policy for anything else.
Will my claim be refused if I rode a scooter without a licence?
It may be. The UK government warns that riding without a valid licence could invalidate your travel insurance. Check your policy wording before riding.
Who can I complain to about a Thai insurer?
Use the insurer's internal complaints process first. For insurers licensed in Thailand, you can then contact the Office of Insurance Commission, which runs the 1186 hotline.
