What is the procedure to extend a 30-day visa issued on arrival in Bangkok?

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@Sa***

, you can apply for a 30 day extension every time you enter on a tourist visa or a 30 day visa exempt entry. That means once each entry. So later this year, if you enter from overseas you'll get a 30 day visa exempt stamp and you can extend that another 30 days like you're gonna do soon on this entry.

Quote: "Travelers, under visa exemption scheme, arriving via an international airport will be given a 30 day visa exempt stamp, however people using OUT/IN method to extend their stay might be questioned after 6 visa exempt entries. There is no specific period given and there is no rule on how many visa exempt will be issued for one person. An old rule “90 days in a 180 days period” has been cancelled many years ago. As of 31st December 2016 Thailand limit visa exempt entries at land border to TWO per calendar year".

@Sa***

, if you go downstairs in that building there are copy shops. They'll make the passport copies you need, fill out the form and glue your passport sized photo on it too.

Then go upstairs to the immigration office, show the people at the counter that gives queue numbers out your passport with the 30 day visa exempt stamp in it, and they will know you want a 30 day extension. They'll give you a queue for section K.