Thailand Visa for US Citizens (2026): 30-Day Stay, TDAC and Longer Stays

Americans don’t need a visa to visit Thailand as a tourist for up to 30 days. That’s down from 60 days, after a change that took effect in mid-September 2026, and a lot of websites, including some embassy pages, still show the old number. Here’s what the rule says now, what you have to fill in before you fly, and what to do if you want to stay longer.

Do US citizens need a visa for Thailand?

No, for a tourist stay of up to 30 days. Thailand’s Ministry of Interior issued a notice dated 26 August 2026, published in the Royal Gazette on 1 September, that cut the visa-free stay from 60 days to 30 and narrowed the list to 60 countries and territories. The United States is on that list. The notice took effect 15 days after publication, which Thai news put at about 16 September 2026. TrueID Travel reported that travelers who had entered under the earlier rule can keep the stay they were given.

Two more details from the notice:

• Land borders. Visa-exempt visitors can enter through land border checkpoints no more than twice per calendar year. Nationals of Malaysia, Brunei, Indonesia and Singapore are exempt from that limit.
• Tourism only. The exemption covers tourism. If you plan to work, study or retire in Thailand, you need the proper visa.

What to do before you fly: the TDAC

Every foreign visitor has to fill in the Thailand Digital Arrival Card, or TDAC, online before arriving. It has been mandatory since 1 May 2025, and it replaces the paper arrival card. You submit it within three days before you arrive, counting the day of arrival, and you show the confirmation when you reach immigration. It was free at launch, and the official site is tdac.immigration.go.th. Transit passengers who don’t pass through immigration and border-pass holders don’t need it. Check the official site for the current rules, and be wary of any site that charges you.

How to stay longer than 30 days

• Extend your stay. Visitors can usually apply for an extension at a Thai immigration office, with approval at the officer’s discretion. Travel guides quote a fee of 1,900 baht, but check with the immigration office for the current fee and length.
• Apply for a tourist e-visa before you go. The official portal is thaievisa.go.th. This is the better option if you already know you want more than 30 days.
• Don’t overstay. Overstays bring daily fines and can lead to a ban on returning.

Is 30 days enough?

For most trips, yes. A good Thailand trip takes ten days to two weeks, and the routes in our Thailand itinerary fit well inside 30 days. If you’re combining Thailand with Cambodia, remember that the two countries’ visa rules are separate, so read our Cambodia visa guide for US citizens as well. For timing, see Thailand month by month.

A short checklist

1. Check your passport’s validity requirement with your airline or the Royal Thai Embassy.
2. Have proof of onward travel ready, since airlines may ask for it at check-in.
3. Fill in the TDAC within three days before you arrive.
4. Count your 30 days from the day you arrive, and note the date on your entry stamp.
5. If you want longer, plan the extension or the e-visa before the 30 days run out.

Planning it with My Way Travel

We plan private trips in Thailand with a driver and guide, hotels and internal flights booked together, and the timing arranged around your entry date. My Way Travel is rated 4.8 to 5.0 on Tripadvisor across its listings in Vietnam, Thailand, Cambodia, Spain, Germany and the United States, with more than 3,000 reviews in total. Have a look at our Thailand tours and Thailand tour packages, or tell us your dates.

Sources (read in Thai): Thairath, Siamrath and TrueID Travel on the Ministry of Interior’s visa-exemption notice of 26 August 2026; TAT News and the Royal Thai Embassy on the TDAC. Rules change, so confirm with the Royal Thai Embassy or the Thai Immigration Bureau before you travel. Last checked October 2026.

Thailand visa for US citizens: FAQ

Do Americans need a visa for Thailand?

Not for a tourist stay of up to 30 days. Since mid-September 2026 the limit is 30 days, not 60.

How long can a US citizen stay in Thailand without a visa?

Up to 30 days per visit. Land border entries are limited to two per calendar year.

What is the TDAC?

The Thailand Digital Arrival Card, a free online form that every foreign visitor fills in within three days before arriving. The official site is tdac.immigration.go.th.

Can you extend a tourist stay in Thailand?

Usually, at an immigration office, at the officer’s discretion. Check the current fee and length with the immigration office.

How do you apply for a Thai tourist e-visa?

Through the official portal, thaievisa.go.th, before you travel. It suits trips that will run longer than 30 days.

Does the old 60-day rule still apply?

No. Some websites still show 60 days, but the Ministry of Interior’s notice of 26 August 2026 replaced it with 30 days for the 60 countries on the list, including the United States.