Thailand is set to replace its paper arrival card (TM.6) with the new Thailand Digital Arrival Card (TDAC) starting 1 May 2025. All foreign visitors must now submit their arrival info online before entering, whether by air, land, or sea.

The TDAC aims to make border processing smoother and faster. Travellers can submit their forms up to three days before arrival at tdac.immigration.go.th. Some exceptions apply, like transit passengers and Border Pass users. Help points will be available for those unable to submit online. Still, everyone is strongly urged to complete it in advance to avoid delays and long queues.