Thailand doesn't require travel insurance for tourists, but travel insurance with medical and trip cancelation insurance is recommended due to the travel risks below. Certain visa types do have health insurance requirements. If you're applying for a retirement visa, you'll need specific health insurance coverage to get your visa approved.
Thailand Entry Requirements:
U.S. citizens can visit Thailand visa-free for up to 60 day, but pre-arrival online registration is required. Starting May 1, 2025, all visitors must complete the Thailand Digital Arrival Card online at least three days before arrival. Required documents for entry include 1) Valid passport with at least six months remaining validity 2) Proof of future travel 3)Completed Thailand Digital Arrival Card.