Thailand Tourist Visa Extension Guide 2026 — How Foreigners Extend Their Stay

Who can extend their stay in Thailand

Most foreigners entering Thailand for tourism receive a visa exemption or a tourist visa, and nearly all of these can be extended once at a local immigration office. Under the rules in effect since 15 September 2026, the standard visa exemption for tourism is 30 days for nationals of around 60 eligible countries (shorter periods apply to a small number of nationalities, and visa-on-arrival follows separate rules). The exact number of days you receive depends on your nationality and how you entered, so check the entry stamp in your passport — it is the authoritative record of when your permitted stay ends.

Nationals of countries that enter under a bilateral visa exemption with shorter periods may receive fewer days, and visa-on-arrival entries follow different rules. If your plans might exceed your permitted stay, arrange the extension well before the last week, not on the final day.

The 30-day extension: where and when to apply

The standard tourism extension grants an additional period (commonly 30 days) and is applied for in person at the immigration office covering your place of residence in Thailand — for most people in Bangkok this is the Chaengwattana government complex. Applications are generally accepted up to and including the last day of your permitted stay, but arriving earlier in that window gives you room to fix missing documents without cutting it close.

Bring your original passport, a completed TM7 application form, one passport-size photo, and the extension fee (commonly the current official rate (confirm before filing)). Many offices also ask for proof of your address in Thailand, such as a hotel booking or your residence details. Requirements can vary slightly between offices, so confirm the current checklist with your local office before you go.

• Passport with entry stamp and TM.6 arrival card
• Completed TM7 extension application form
• One passport-size photo (4x6 cm)
• Extension fee (current Immigration Bureau rate)
• Proof of address: hotel booking or residence details

Documents in foreign languages must be translated

If you present supporting documents issued in another country — for example proof of funds, insurance papers, or letters from an employer abroad — Thai immigration may require certified Thai translations. Having these prepared in advance is the single most common way to avoid a second trip to the office.

This is where a professional translation service earns its fee: we translate and prepare supporting documents for immigration submissions, and check your full document set for completeness before you apply. We do not and cannot guarantee visa outcomes — the decision always rests with the immigration officer.

Common mistakes and how to avoid them

The most frequent mistake is applying on the last day with an incomplete set, then getting a same-day rejection for a missing photo or form field. The second is assuming every nationality gets the same exemption-plus-extension pattern — shorter exemption periods exist for some nationalities, and the rules were adjusted in September 2026. The third is confusing the 90-day reporting rule with extensions: reporting applies to stays beyond 90 days and is separate from the extension application itself.

Finally, never overstay while waiting to apply. Overstaying incurs daily fines and creates an unfavourable record that can complicate future entries into Thailand.

อ่านเพิ่มเติม

• Thailand visa services for foreigners
• 90-day reporting & stay management
• Certified document translation

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