Paying for treatment: deposits, guarantees and direct billing.

How a Thai private hospital bills

Thailand's leading private hospitals treat very large numbers of international patients and their administrative machinery reflects that. Bumrungrad International treats over 1.1 million patients a year, more than 520,000 of them international from over 190 countries, and maintains international referral offices in Gulf countries including Kuwait, Bahrain and the UAE. Bangkok Hospital and Samitivej run comparable international operations. What all of them share is a billing model built around estimates and deposits rather than open credit: the hospital establishes an expected cost, secures it, delivers the care, and reconciles at discharge.

For a family used to a system where a ministry, an insurer or a sponsoring office simply handles everything, this can feel abrupt on arrival. It is not a judgement about the patient and it applies to every international self funding patient equally. Understood in advance, it is straightforward, and the hospital's international office exists precisely to arrange it. Every practical instruction in this guide reduces to the same thing: contact that office before the patient flies, in writing, and settle the payment arrangement then.

Estimates and deposits

For any planned admission or procedure, ask the international office for a written cost estimate in advance. A proper estimate sets out the expected cost of the procedure, the anticipated length of stay, room category, and the significant items that are and are not included. Ask specifically what is excluded, because the common exclusions are the ones that move a bill: complications requiring extended stay, intensive care, additional imaging, implants and devices, medicines dispensed at discharge, and the difference between room categories. An estimate is an estimate and no hospital will guarantee a final figure for clinical work.

A deposit is normally taken at or before admission, and it may be a substantial proportion of the estimate. This is where card limits become an operational problem: a single transaction at hospital scale will frequently exceed a card's daily ceiling, and a family that discovers this at the cashier's window on a Friday afternoon has a genuine difficulty. The fix is entirely preventable. Either arrange a bank transfer in advance, timed to clear before admission, or speak to your issuing bank about a temporary limit increase for named dates. Our office does one or the other for every medical client, without exception.

For an outpatient course rather than an admission, the pattern differs: payment is usually taken per visit at the cashier before you leave, and the amounts are smaller and card friendly. Families on a multi week course of appointments should still ask the international office for an overall indication, because the cumulative figure across six weeks of visits, imaging and medication is often the number that matters to the family office rather than the cost of any single day.

Guarantees of payment

Where the patient is not paying personally, the mechanism is a guarantee of payment: a written undertaking from the paying party, whether an insurer, an employer, an embassy or a government sponsoring body, that it will settle the hospital's account on stated terms. This is issued to the hospital before or at admission and it is what allows the hospital to waive or reduce the deposit. It is a document with specific content requirements, and hospitals will not accept an informal assurance in its place.

The practical work is in getting it issued in time and in the right form. A guarantee must name the patient exactly as the passport does, identify the treatment or scope covered, state any financial limit, state its validity period and come from the payer directly to the hospital rather than by way of the family. Where the payer is a Gulf government sponsoring programme, the procedure is set by that programme and by the relevant health ministry, and it differs by country and changes. Confirm the current requirements with your own health ministry or your embassy in Bangkok, and start the process well before travel: these approvals are not same week matters.

Insurer direct billing

The major Thai international hospitals hold direct billing arrangements with a long list of international insurers, which is the smoothest arrangement available when it applies. Under direct billing, the hospital invoices the insurer and the patient settles only excluded items, the excess or deductible, and anything outside the policy. The arrangement has to be confirmed in advance, and both sides must confirm it: the hospital that it bills your specific insurer, and the insurer that it has authorised the specific treatment at that specific hospital.

Confirming only one side is the classic error. An insurer that says it covers treatment in Thailand has not thereby guaranteed direct billing at a chosen hospital, and a hospital that lists an insurer has not thereby confirmed that a particular policy and a particular procedure are authorised. Get pre authorisation in writing, with a reference number, and make sure both the hospital's international office and the family hold a copy. Note also that many policies exclude pre existing conditions, elective procedures, treatment sought specifically abroad, and maternity, and that the family should know which exclusions apply before travel rather than after discharge.

What to settle before the patient flies

The list our medical coordinators work through is short and it removes almost every payment problem we have seen. Confirm who is paying and by what mechanism. Obtain the written estimate. Obtain the guarantee or pre authorisation, in the patient's exact passport name. Confirm the deposit amount and how it will be paid, and clear card limits or send the transfer in advance. Confirm what the accompanying family is responsible for, since companion accommodation, meals and interpretation may or may not be covered. Confirm what happens if the treatment extends beyond the estimate, and who authorises additional expenditure.

• Written estimate from the hospital's international office, with exclusions listed.
• Guarantee of payment or insurer pre authorisation, in the exact passport name, sent payer to hospital.
• Deposit amount confirmed, and either transferred in advance or covered by an agreed card limit.
• A named family member authorised to approve additional expenditure, with contact details held by the hospital.
• Clarity on what companion costs are and are not covered.
• The hospital's international office contact held by the family, and the family's contacts held by the hospital.
• Currency of billing confirmed, and payment made in baht rather than accepting terminal conversion.

One item on that list deserves emphasis because it is the one families skip. Someone has to be authorised to approve additional expenditure, and that person has to be reachable. Clinical situations change, an extra night in intensive care is not a decision that waits for a family conference across three time zones, and a hospital that cannot reach an authorised payer will proceed clinically and bill afterwards, which is right but leaves the family with a conversation nobody planned. Name the person, give the hospital a working number, and keep that number switched on.

Discharge, the final bill and the paperwork you keep

At discharge the hospital reconciles the account against the deposit and either refunds the balance or takes the difference. Ask for the itemised bill rather than the summary, and ask for it before you settle rather than after, because queries are easy to raise at the cashier and difficult to raise from Riyadh a month later. Refunds of unused deposits are usually returned to the original payment method, which is another reason for the deposit to have come from an account or card the family controls and will keep open.

Keep the full set of documents: the itemised bill, receipts, the medical report and discharge summary, and any pre authorisation references. An insurer reimbursing after the fact will require all of them, a sponsoring programme will require them for its own reconciliation, and a family that needs continuity of care at home will need the clinical documents in any case. Ask the international office what it can provide in English and whether Arabic documentation is available, as the major international hospitals provide interpretation and often documentation support at no cost to the patient. Payment logistics are all we advise on here: every clinical question belongs to the patient's own doctors.

Hospital billing practice, deposit requirements, insurer direct billing lists and government sponsoring procedures change and differ between hospitals and between countries. Confirm all payment arrangements directly with the international office of the hospital concerned before the patient travels, confirm cover and pre authorisation with your insurer in writing, and confirm sponsored patient procedures with your own health ministry or your embassy. Nothing here is medical advice.

This briefing is general information, not legal, tax or investment advice. Thai rules change frequently and individual cases differ. Verify current requirements with the relevant authorities, including the Immigration Bureau, the Board of Investment, the Land Department, the Department of Business Development and the Revenue Department, and take advice on your own facts before acting.