Do I need to transfer money from abroad for a retirement visa in Thailand if I already have funds in a local bank?

You can also show as an alternatuve income per month of 65k baht statement certified by your embassy. You can also have certified income from other sources like pensions etc.

800,000 thai baht, in a thai bank account 3 months before application and 3 months after your visa. All the required documentation is easy to find online.

IF you have the Extension of Stay based on being employed inside Thailand, you have to cancel this Extension of Stay on your last day of working and apply directly for a new Extension of Stay based on being over 50 years of age (short retirement visa) and show that you have 800.000 Thb in a Thai bank and there is NO question where that money comes from. There are a few other requirements like copies passport, map etc.

I guess there is some misunderstanding in the question.

You are years in Thailand and you worked for years in Thailand as it seems from your answers, may I assume you have a current legal stay with an yearly stamp from Immigration as Extension of Stay permitted up to xx/xx/xx based on working here?

If you have been working here many years what kind of extension are you on? From a non B visa?

this is an image from the paper they hand out in Section C-1 in Bangkok to get a 90 day Non-O issued based on being over 50

@Robert ********

Here's the easy answer to your query;

How about you slog on over to your immigration office and ASK them if the 800K baht banked in a thai bank account in your name only HAS to show proof of originating from abroad to apply for the initial in country 90 day Non-O visa based on being over 50 (retirement).

Unfortunately (for you) it's totally irrelevant that you've been here for decades (and one actually might ask, why, in those intervening decades, didn't you apply for permanent resident and or thai nationality) 😕 However, be that as it may. .. ..

The rules clearly state that to get an in country 90 day non-O visa using banked money method that the funds have to originate from abroad and it's neither here nor there that you can't see the logic of it 😕 I personally stopped looking for logic here a LONG time ago, but your mileage may vary. .

IF when you go talk to your immigration office they say the funds have to come from abroad then worst case you withdrawal 800K baht out of your bank account, transfer it to your bank in your home country and then bring it back in.

Granted not the easiest of things to do but certainly something that can be done and then the 800K baht will meet the requirements as having originated from abroad.

The 800,000 must be in CASH in a Thai bank account in your name only... Not 🚫 In a Thai brokerage account managing a mutual fund or other securities.

The rule is that the 800K baht has to be in a thai bank account in your name only and you have to prove the funds came from abroad. SO as long as you can do that, you should be able to apply for the 90 day Non-O visa

There is no requirement to show funds origin for the 800K baht for the year extension only when you get the 90 day Non-O visa issued inside the country.

GO talk to your immigration office and see what they say.

Doesn't make any difference what account abroad the money gets to your thai account from as long as you transfer it in from abroad that's fine