How do the income and bank balance requirements for visa extensions in Thailand based on retirement and marriage work?

The way the "seasoning" of funds works is;

-for extensions based on being over 50 for the first yearly extension you need the 800K baht seasoned in your account for 60 days prior to your application for extension. For every subsequent yearly extension you need the money seasoned 3 months prior to your application.

-for extensions based on marriage to a thai you need the 400K baht seasoned in your account for 2 months prior to your application.

- for extensions based on raising half-thai children there is NO seasoning of the 400K baht and it can be put into the account the day you apply if you want to.

-for extensions based on raising foreign children for the first yearly extension you need the 500K baht in your account for 30 days prior to your application and for subsequent yearly extensions it needs to be in the account 3 months prior to your application.