If you stay more than 90 days continously in the country, you need to file the 90 day report, called TM-something. I've heard the first one must be done in person, and the subsequent ones can be done online. If you never stay more than 90 days at a time, then you don't do anything. (I've never stayed more than 90 days in a row in Thailand yet).

@Brandon ***********

sometimes there isn't an "only" country, but more than one country. You can have several passports and/or residence cards. I'm entitled to live either at my country passport (Costa Rica) or my residence country (South Korea, I have a residence card, equivalent to the US green card, where I've been living continously for the past 15 years straight).

@Brandon ***********

South Korea

@Kool ******

passport and country of residence are NOT the same. I have a passport from Costa Rica, but haven't lived there since more than 15 years ago.

@Brandon ***********

so what about the PR holders you mention, they're also foreigners, aren't they? So in theory, they would also need to file the form, and be able to choose Thailand.

No

@Christopher *******

it depends on each embassy. Some ask thighs as ridiculous as an at least 6-month lease in Thailand.

@Christopher *******

poor planing yes, as he should have alloted more time but there was a need to book the flight, as many embassies do require you to show it. At least in my case it was like that. Of course one could just upload any random fake flight, but I wouldn't feel doing that on a visa application.

@Tee ********

I've entered six times so far since October, always on one way tickets. Last time was last month.

@JP ******

yes, I do (I'm not the same person). I travel in and out almost once a month. Always get 180 days upon each entry. No questions asked. I've used both BKK and DMK. What

@Brandon ***********

said was already an answer, tho. Because those are the rules anyways.