Sorry

@Robert ******

. Noticed the same and typing a bit the same. So think

@Ted *****

y'r a bit missinformed indeed...

Also think non imm O multi based on mariage is valid for 1 year and you have to leave the kingdom after 90 days for a border bounce to get another 90 days..

quote: "They can transfer your visa but not your extension" ? Think it's the other way around...They can transfer y'r extension, not the visa. You need to keep both passports.

Would not wait untill the last day for the bounce. Year extension last 45 or 30 days depending of y'r imm. office

Think on that extra year stamped in january this year so allowed to january 2021?

When you come back you have a new arrival card (TM6) number. That number is asked/filled in on y'r TM30 form. So you need to do the TM30 again. Seems rather logical to me.

just buy a re-entry permit ?

2 months before and 3 months after. After that not below 400k.

Nope. The first year of your NON IMM O-A is MULTI ENTRY (See the "M" on your visa). So this first year you can go and come back as many times you want. (before 13th of March) That second year you are stamped in you DO need a re-entry permit and also when you come back from the UK, you almost sure to be asked to the healthcare insurance for that (whole) year.

To be clear

@Michael *********

, if you choose for this option, you have to leave thailand to 'a random country nearby' and come back. Only then you got a full year. And indeed then get a re-entry permit. This all BEFORE you go back to the UK.