If you were using monthly income method to meet proof of funds (either by using an embassy letter OR by transferring in 65K every month for the previous 12 months before you got the extension) and you wanted to switch to banked money method, the seasoning requirement would ONLY be that you have the funds in the account 2 months before you apply for the new extension.
Once your current extension was granted using monthly income (last year) if you were wanting to switch to bank money method for proof of funds, you are under no obligation to do ANYTHING until you get the 800K in the bank 2 months before the next extension.
You wouldn't need to have kept transferring money in each month once you got the extension granted last year (the one you're on now) and you wouldn't have needed the 800K in the bank since the last extension either because you didn't use bank money method for the proof of funds for the extension last year
I'd go back there and say you want to talk to someone who really knows, not just is pulling an answer out of their backside 😮 because there is NOTHING in the rules about it
The only time you need to meet the seasoning requirements for BOTH your current extension and the one you will apply for the following year is when you're switching from banked money method to monthly income. With that swap you have to have the 800k in the bank for 3 months after your extension was granted and then never let the balance go below 400K as well as transfer in 65K baht a month, each month, every month for the next 12 months before you apply for the following extension
that can't be right. They cannot require the 800k be in the bank for 12 months, there is a Lost in translation going on. There is no requirement switching from monthly income method to bank money method to to have the 800k in the bank for a full year before you apply for the next extension
the terms of their current extension would only be to have brought in 65k each month every month for the previous 12 months before they applied for that extension. There is no obligation to continue bringing in monthly income after the extension is granted especially if you're going to switch to a different method of proof of funds
I do not know why offices are not allowing monthly income method by international transfer for marriage/raising thai child extensions. At first just a couple offices stopped but now it seems to be more and more of them.
The only reason you would quote the 40K per month as far as proof of funds based on monthly income method would be because you're getting a marriage or raising thai child extension..
Sadly, we are seeing more and more immigration offices refuse to accept monthly income by transfer for those extensions, all they are accepting either 400k bank money method or 40K per month salary based on working in Thailand legally.
Remember the way the proof of funds based on monthly income by international transfer works is: you would need to transfer 40K per month, each month, every month, into a thai bank account in your name only from abroad for the previous 12 months before you apply for your next extension.
You need to check with your immigration office to see if you can use 40K income per month based on international transfer for your extension based on marriage to a thai or raising thai child
It's 3 months, date to date and several people have reported that is from the date the extension is applied for / granted because that is the day it takes effect.
there is no mandatory health insurance requirement for a year extension from Non-Immigrant Type O visa. That insurance is only required on Type OA and the LTR visas