500 baht, If it goes in their pocket sometimes it doesn’t and they give you a receipt that you can use for the rest of the day. I’ve been asked for 1000 because half was going in their pocket and the other half to the station, told them don’t worry I don’t need a receipt just take the 500.
The ask:thailand community, consisting of multiple Q/A groups with over 100,000 members, powers this platform. It is not an official government resource. Our members actively contribute to this resource, and while we strive for accuracy, we cannot guarantee its complete reliability. Assistance to travelers is provided as a community service.