TL;DR:Typical minimums are 40,000 THB outpatient and 400,000 THB inpatient for many Thai long‑stay visas, but check the specific Thai embassy/consulate or Immigration Bureau requirements for your visa.
For most Thailand long‑stay visa/extension requirements (notably the Non‑Immigrant O‑A retirement visa and health insurance proof often requested by Thai embassies), the minimum medical coverage commonly required is 40,000 THB for outpatient treatment and 400,000 THB for inpatient treatment. Some embassies or visa categories instead ask for comprehensive health insurance with a minimum overall sum (for example, 100,000 USD) — especially where travel/medical evacuation cover is required. Always check the specific Thai embassy/consulate or Immigration Bureau page for the country and visa type you’re applying for because acceptable policy wording, currency and minimum sums differ by post and have changed recently. Official sources: Thai Immigration Bureau and the website of the Thai embassy/consulate handling your application.
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