Thailand Visa Exemption for US Citizens: 30-Day Stay, Extension & TDAC
Short answer: If you hold a U.S. passport and your trip is a vacation of less than 30 days, you do not need a visa — that is Thailand’s visa exemption. The earlier 60-day exemption scheme was revoked and the revised rules take effect from 15 September 2026. You still file a TDAC within 3 days before arrival; that form is not a visa. Stand: 25 September 2026.
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Who qualifies — US passport holders
This exemption is for U.S. passport holders whose purpose is a vacation and who will stay less than 30 days. That is the rule the Royal Thai Embassy in Washington, D.C. states for visa-free entry under exemption.
Why that matters: the revised national measures describe the short-stay exemption schemes for tourism purposes only. If your purpose is something else — work, long study, or another non-tourism stay — you need the relevant visa category instead, and you apply through the official e-Visa channel described later.
For a typical US leisure trip under 30 days, exemption is the entry path the embassy names. Confirmation of the current wording belongs on the embassy FAQ before you travel: Common Questions (FAQs).
Stay length and extension
Under exemption, the stated stay is less than 30 days. The embassy also notes that the period of stay can be extended for another period not exceeding 30 days — solely at the discretion of the immigration officer. That is not an automatic second free month you can plan as if it were already granted.
What that means for you: build your itinerary around the under-30-day window. Treat any further days as something an officer may allow at the time, not as a right you lock in before departure.
Concrete situation: you book a Bangkok–Chiang Mai–Phuket loop for 24 days. Mid-trip you want one more week. You can ask about an extension of not more than 30 days, but the officer decides. If your trip was always going to need more than that first window, or if tourism is not the purpose, plan a visa before you fly — see When a visa is required.
The 60-day visa exemption scheme was revoked. Thailand’s Ministry of Foreign Affairs published the revised measures in the Royal Gazette as of 31 August 2026; they take effect from 15 September 2026. Do not plan around the old 60-day arrangement after that date. Summary: Ministry of Foreign Affairs notice.
TDAC is still required
Visa exemption removes the need for a visa for a qualifying short vacation. It does not remove Thailand’s digital arrival requirement.
From 1 May 2025, non-Thai nationals entering by air, land, or sea must complete the Thailand Digital Arrival Card (TDAC) online within 3 days before arrival. The embassy is clear: the form is not a visa, and it does not replace existing visa rules. Travelers entering under visa exemption must still complete it.
Why this trips people up: “visa-free” sounds like a single green light. In practice you still have an arrival form to file on time. Leave a short buffer in the three-day window so you are not filling it on the way to the airport. Step-by-step help for that form sits on the TDAC guide. Official note: Visa Information — Royal Thai Embassy, Washington, D.C..
When you need a visa instead
Use a visa path when the trip does not fit the tourism exemption — for example a stay longer than the under-30-day vacation window, or a purpose that is not tourism under the revised schemes. Foreigners entering for other purposes must use the relevant visa category and the applicable rules.
If you need a visa, applications go through the official e-Visa portal at thaievisa.go.th. The Washington embassy states that applicants are no longer required to mail materials to the embassy, and the embassy does not accept walk-in or drop-off visa filing at the moment.
For how that request works in practice for US travelers, open the Thailand eVisa guide. For the wider entry-path map, start from the Thailand overview.
FAQ
Is Thailand visa-free for US citizens?
For a vacation of less than 30 days, U.S. passport holders do not need a visa; that is called visa exemption, as stated by the Royal Thai Embassy in Washington, D.C. The revised short-stay exemption schemes apply to tourism purposes. Admission and any later extension are decided by immigration.
Can I still use the 60-day exemption?
No. The 60-day visa exemption scheme was revoked. The revised measures take effect from 15 September 2026. Plan on the shorter tourism exemption window described above, not the old 60-day arrangement.
Can the 30-day stay be extended?
The embassy says the stay can be extended for another period not exceeding 30 days, solely at the immigration officer’s discretion. Do not treat that as a guaranteed second block when you buy tickets.
Do I complete a TDAC if I am visa exempt?
Yes. TDAC is required within 3 days before arrival for non-Thai nationals entering by air, land, or sea, including travelers under visa exemption. The form is an immigration requirement, not a visa.
How my-evisas.com can help
If your vacation fits, you use the official exemption path and complete TDAC on the government form.
Optional private help from my-evisas.com is for an eVisa request or a TDAC form.
- Self-service: Confirm the vacation fits the under-30-day tourism exemption, then file TDAC on the official channel within three days of arrival.
- Assisted filing: Start from the Thailand services page if you want help with an eVisa request or a TDAC form.
- Who decides: The immigration officer decides admission and any extension of stay.
Related reading: Thailand overview · Thailand eVisa · TDAC.
Sources
- Royal Thai Embassy, Washington, D.C. — Common Questions (FAQs) (accessed 25 September 2026)
- Ministry of Foreign Affairs of Thailand — Visa exemption and VoA measures summary (accessed 25 September 2026)
- Royal Thai Embassy, Washington, D.C. — Visa Information (accessed 25 September 2026)
- Thailand e-Visa portal — thaievisa.go.th (accessed 25 September 2026)
Important Notice
The information on this page is provided for general informational purposes only and does not constitute legal advice. my-evisas.com is a private service provider and not a government authority, embassy, or consulate.
Visa requirements and entry regulations can change at short notice. We do not guarantee the accuracy, completeness, or timeliness of the information provided. Only the official regulations in force at the time of your application are authoritative.
As of: 25 September 2026
Binding and up-to-date information is provided exclusively by the relevant official authorities. Please verify the currently applicable requirements before your application or travel: https://washingtondc.thaiembassy.org/en/page/common-questions-faqs