What paperwork do I need for re-entry to Thailand with a Non-Immigrant O-A multiple entry visa?

𝗪𝗵𝗲𝗻 𝗜 𝗲𝗻𝘁𝗲𝗿, 𝗺𝘆 “𝘃𝗶𝘀𝗮” 𝘄𝗶𝗹𝗹 𝗯𝗲 𝗮𝗰𝘁𝗶𝘃𝗮𝘁𝗲𝗱 𝗳𝗼𝗿 𝗼𝗻𝗲 𝘆𝗲𝗮𝗿 (𝗜 𝗮𝘀𝘀𝘂𝗺𝗲 𝘂𝗻𝘁𝗶𝗹 𝗡𝗼𝘃𝗲𝗺𝗯𝗲𝗿 𝟯𝟬, 𝟮𝟬𝟮𝟱). 𝗪𝗵𝗮𝘁 𝗮𝗯𝗼𝘂𝘁 𝗽𝗮𝗽𝗲𝗿𝘄𝗼𝗿𝗸.

You have the print out of the eVisa and a print out of the insurance coverage and you'll get stamped in for as long as the insurance is valid for up to one year from the date of entry

𝗨𝗻𝘁𝗶𝗹 𝗻𝗼𝘄, 𝗜 𝗵𝗮𝘃𝗲 𝗵𝗮𝗱 𝘁𝗵𝗲 𝗧𝗵𝗮𝗶 𝗲𝗩𝗶𝘀𝗮 𝗹𝗲𝘁𝘁𝗲𝗿 𝘄𝗶𝘁𝗵 𝘁𝗵𝗲 𝗱𝗮𝘁𝗲𝘀. Right and you need that eVisa PDF to show when you enter this next time (as it IS your visa) and you have to enter the country on or before the 14th Dec 2024

𝗜𝗳 𝗜 𝗹𝗲𝗮𝘃𝗲 𝗶𝗻 𝗝𝗮𝗻𝘂𝗮𝗿𝘆 𝗳𝗼𝗿 𝗮 𝘁𝗿𝗶𝗽 𝗵𝗼𝗺𝗲, 𝘄𝗵𝗮𝘁 𝗱𝗼 𝗜 𝗻𝗲𝗲𝗱 𝘁𝗼 𝗱𝗼?

You buy a re-entry permit BEFORE you stamp out of the country (either a single re-entry for 1000baht or a multiple re-entry for 3800baht)

𝗛𝗼𝘄 𝗱𝗼𝗲𝘀 𝗶𝗺𝗺𝗶𝗴𝗿𝗮𝘁𝗶𝗼𝗻 𝗸𝗻𝗼𝘄 𝘁𝗵𝗮𝘁 𝗺𝘆 𝘃𝗶𝘀𝗮 𝗶𝘀 𝘃𝗮𝗹𝗶𝗱 𝘂𝗻𝘁𝗶𝗹 𝗡𝗼𝘃𝗲𝗺𝗯𝗲𝗿 𝟯𝟬, 𝟮𝟬𝟮𝟱? Your visa isn't valid until Nov 30, 2025, your VISA will run out on 14 Dec 2024 <- the date you have to enter the country on or by with a new year of insurance to get a new year ENTRY STAMP. <- it's the entry stamp that lets you stay here and it's the re-entry permit that lets you leave and come back

𝗛𝗼𝘄 𝘄𝗼𝘂𝗹𝗱 𝗜 𝗽𝗿𝗼𝘃𝗲 𝗶𝘁 𝘄𝗵𝗲𝗻 𝗜 𝗿𝗲-𝗲𝗻𝘁𝗲𝗿 𝘁𝗵𝗲 𝗞𝗶𝗻𝗴𝗱𝗼𝗺 𝗔𝗙𝗧𝗘𝗥 𝗺𝘆 𝘁𝗿𝗶𝗽 𝗵𝗼𝗺𝗲 𝗶𝗻 𝗝𝗮𝗻𝘂𝗮𝗿𝘆? You have the entry stamp in your passport from when you entered on Dec 1st AND you have the re-entry permit that you bought at the immigration office where you live (or the airport) BEFORE you left the country that keeps that stamp 'alive' so you're stamped back in until Nov 30, 2025 <- the date you got on the entry stamp when you entered on Dec 1st 2024