Thailand's foreign long-stay visas do not share one health insurance rule. Requirements differ by visa category, and for at least one popular option they are not centrally mandated at all, a distinction that surprises many people planning a move and can derail a visa application if it's discovered too late.
The clearest rule applies to the Non-Immigrant "O-A" retirement visa. Following a Cabinet-approved amendment from the Ministry of Public Health that took effect October 1, 2021, O-A applicants must hold health insurance, Thai or foreign, covering all medical expenses, including COVID-19 treatment, of not less than USD 100,000 (THB 3 million). This replaced an earlier, lower standard of THB 400,000 inpatient and THB 40,000 outpatient coverage that applied only to policies bought through Thai insurers. Foreign policies are accepted for the first application but must be certified by a Thai embassy in the applicant's home country or notarized through that country's foreign ministry. A related Immigration Bureau decree extended the higher THB 3 million standard to visa renewals as well, originally scheduled to take effect October 1, 2022. Applicants renewing an O-A visa should confirm the currently enforced renewal threshold directly with Thai Immigration, since renewal practice has been reported inconsistently since that transition. Sixteen Thai insurers are listed on the Thai General Insurance Association's official long-stay portal, longstay.tgia.org, for the local purchase route.
The related Non-Immigrant "O-X" visa, a 10-year long-stay option available only to nationals of a limited list of countries, runs on the older, lower standard rather than the O-A's updated figure. Thailand's Ministry of Foreign Affairs consular affairs page for the O-X visa states the required coverage as not less than THB 40,000 for outpatient treatment and not less than THB 400,000 for inpatient treatment, valid for the applicant's full stay and issued by an insurer approved by the Office of Insurance Commission. Unlike the O-A, this threshold was not raised in the 2021 reform, so O-A and O-X applicants should not assume the two visas carry the same minimum; applicants should still confirm the current figure with the Royal Thai Embassy handling their application, since consular pages are updated periodically.
The Board of Investment's Long-Term Resident (LTR) visa, aimed at wealthy pensioners, work-from-Thailand professionals, and high-skilled professionals, runs on a different and more flexible standard. Per BOI's own published document requirements, applicants need one of three things: health insurance covering at least USD 50,000 for hospitalization and medical treatment in Thailand, with at least 10 months of remaining validity at the time of application, noting that travel insurance is explicitly not accepted and group policies must provide at least USD 50,000 per person; proof of active Thai Social Security Office benefits; or a bank deposit of at least USD 100,000, held and maintained for at least 12 months, with an additional USD 25,000 required per accompanying dependent. Applicants may submit the insurance document later in the process under a signed acknowledgement form if it isn't ready at initial filing.
The Destination Thailand Visa (DTV), the newer five-year multiple-entry option popular with digital nomads and remote workers, has no central health insurance mandate. Thailand's official e-visa portal, thaievisa.go.th, and the Ministry of Foreign Affairs' published DTV guidance list financial and eligibility requirements — including proof of at least THB 500,000 (or equivalent) held in savings — but do not state any minimum health insurance coverage figure. Secondary reporting from immigration-law firms and visa-service providers is consistent with this: health insurance is not treated as a standard, universal DTV requirement at the national level, though individual Thai embassies and consulates retain discretion to request proof of coverage as part of their local application process. Anyone applying for a DTV should confirm directly with the specific embassy or consulate handling the application, via the official portal at thaievisa.go.th, rather than assume a fixed figure applies everywhere, and should recheck closer to application since requirements can change.
The throughline for anyone comparing visa routes: don't buy a policy before confirming the figure your specific visa category and processing post require, since minimums range from no fixed national requirement in practice for the DTV, to THB 400,000/40,000 for the O-X, to USD 100,000 for the O-A, and some routes such as the LTR accept a large bank deposit instead of insurance altogether. BAANLYY's relocation team works with tenants across these visa categories daily and can point to insurers and documentation paths that match a specific case, a conversation worth having before a policy is purchased.