Can you use a Thai stock brokerage account to meet the 800,000 Baht annual deposit requirement for the retirement visa extension?

I believe you need instant access to the balance, because in theory, that 800k is the money you use to live on.

They accepted my Fix A/C every time, even if it was long term like 6 months etc.

No ....it has to be a savings account.......my first renewal a few years ago.... i got refused when i used an interest account (it was money that had been invested and matured and the bank put it in an interest account after maturity) i left it in there for 3 months thinking it would be ok.....got refused and was told by immigration it must be a savings acc.......i could not produce a savings account that had enough money in it for the required time.......so the guy with the uniform at the front in jomtien sorted it out but.....cost me a lot more and it went in his pocket!!

I do not believe it can be used, BUT you should visit your immigration office and check with them to be sure.

I don’t believe you can DJ was turned down when his money was in an interest account