Starting from 1 May 2025, all non-Thai nationals entering Thailand by air, land, or sea must complete the Thailand Digital Arrival Card (TDAC) online within 3 days before arrival. Completion of TDAC will be mandatory for all foreign passport holders, including tourists, business travelers, and long term residents. Exception only applies to travelers transiting or transferring through Thailand without passing through immigration control and those entering using a Border pass.

To register the TDAC, Travelers should visit the Thailand Immigration Bureau's official website: https://tdac.immigration.go.th