What are the requirements for renewing a marriage visa outside of Thailand?

Of the two choices Savannakhet is a sure thing, while Penang is sketchy (unless you contact them beforehand and hash it out with them)

So even though Savannakhet might be a slog from where you are, if you want a trouble free, year-long, multi-entry Non-O I'd say it's is the place to go

@Dan ****

These are the requirements for Penang

They do list a bank statement for the last 6 months with 400K baht (recommended) <- no idea what that really means you want Non-O for dependant

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@Dan ****

These are the requirements for Savannakhet

They don't list it but they DO issue a year-multi, you just write it on the application when you mark Non-Imm visa and pay 5000baht

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Well

@Dan ****

Seeing as you can't renew a visa (they just run out when they run out and you go BUY a new one) I think you're asking about going to a thai consulate and getting a new VISA

You can go to the thai consulate in Savannakhet Lao and get a year-long, multi-entry Non-O visa based on marriage to a thai without any proof of funds and with only minimal documentation for 5000baht.

That visa is valid for a year, gives you unlimited entries of 90 days each, when that 90 day stamp runs out you go to the border, stamp out of thailand, stamp in-n-out of another country then right back into thailand to get a new 90 day stamp,. You do that for the whole year the visa is valid for and you get 15 months of stay out of a visa valid for 12.

When I was stuck outside Thailand during COVID I was told it was impossible to do, that the visa would expire, and that I'd have to start the process all over again...which I did.

That would depend on which consulate or embassy you are going to apply at.