Do I need to keep the 800,000 baht deposit in the bank permanently or just during my visa renewal period?

As someone else on this page told me

First application for retirement visa

800,000B in bank account for 2 months prior to application

Upon successful application 800,000B minimum for 3 months

Beyond that balance is allowed to drop to a minimum of 400,000B until 2 months prior to renewal where it needs to then be increased and maintained back at 800,000B and then repeat each year

For most immigrations it’s sufficient that the funds are in your account at date when you apply for the initial 90 days Non O visa. A couple of immigrations as an example Jomtien demands two months seasoning also for the visa.

When you apply for the first year extension and stay (and later extensions) the 800K baht needs to be seasoned for two months prior to your application and three months after the extension is issued and it can nevner drop below 400K baht.

I think that it's 3 months after and 2 months before.

And it must not drop below 400,000.

Might as well just leave it in there.