Can the 400,000 baht for a 1-year marriage extension in Thailand come from a Thai bank account?

One FINAL time people, there is no requirement to show funds origin for a yearly extension based on retirement OR marriage using banked money method. The funds can come from abroad OR from a domestic transfer.

The only one that I know where you show proof that the banked money funds came from abroad into a thai bank account in your name only is if you are getting the initial 90 day Non-O visa based on retirement issued at the immigration office inside the country.

Depends on which office you’re using. What office do you go to?

Dont think it matters where I comes from to be honest, I'm doing mine at the moment and there is nothing that states where the cash has to come from

There is no requirement that you show the 400K baht banked money for either a non-O VISA or a year extension based on marriage came from abroad. It can be a local deposit or transfer if you want.