No advance approval needed. Show up with a valid passport.

No advance approval needed. Show up with a valid passport. Permitted stay is 60 days.

United States passport holders can typically stay in Thailand for 60 days under the standard entry rules. Longer stays require a separate long-term visa.

Visa waiver program rules: One can enter for 60 days per visa exempt stay. One can enter an unlimited number of times via air. Maximum of two entries if entering by sea or land. Else, one need hard visa. Overstayers will be banned and fined upon departure depending on length of overstay. All passengers must complete the Thai Digital Arrival Card (TDAC), which is available starting 3 days before arrival.

For short business visits like meetings or conferences, United States citizens typically enter Thailand under the same rules as tourists. For paid work, long assignments, or activities beyond what a tourist visa allows, a dedicated business or work visa is required. Confirm specifics with the Thailand embassy or consulate.