If you are on a marriage visa, can you put 800,000bht in the bank and not have to show a monthly income Or do you still have to show the 40,000/60,000bht a month income each month on top of the bank balance?
TLDR : Answer Summary
If you are on a marriage visa in Thailand, you can either maintain a bank balance of 400,000 baht in a Thai bank account for at least two months prior to applying for an extension or provide proof of a monthly income of 40,000 baht. The comments clarify that maintaining 800,000 baht in the bank is not necessary if you fulfill one of the two options, and it is sufficient to have 400,000 baht for 3 months prior to renewal.